Answer:
Mostly Sunny then Isolated T-storms. High: 90 °F. Sunday Night. Sunday Night: Isolated showers and thunderstorms. Partly cloudy, with a low around 73. Tuesday Night: Partly cloudy, with a low around 44. Northwest wind 5 to. Partly Cloudy. Low: 44 °F. Wednesday. Wednesday: Mostly sunny, with Moderate. Weather: Partly sunny until 12 p.m., then mostly cloudy. A chance of showers and a slight chance of thunderstorms. Thunderstorm Potential: ok.
Explanation:
please help me. i have my biology test tomorrow and im faIIing really behind. i want to be a marine biologist, so if i dont pass this, i might not be able to get into coIIege.
the 3 large biological molecules listen in #2 are: carbohydrates (sugars), proteins, and lipids
what process builds those molecules, what breaks them apart, and what molecule/compound is used to do so?
Answer:
1 anabolism
2 catabolism
3 enzymes
Positive feedback mechanisms tend to enhance the original stimulus so that the response is accelerated. True or false?.
The statement: Positive feedback mechanisms tend to enhance the original stimulus so that the response is accelerated, is true.
Positive feedback mechanism occurs for the maintenance of homeostasis. The positive feedback functions to amplify of increase the output of a reaction. For the maintenance of homeostasis, the positive feedback directs the body towards equilibrium.
Stimulus is any signal that stimulates the body to react or simply produce an action. For example, when the body suddenly touches any hot object, the touch acts as a stimulus, for which the action produced is to remove the hand instantly. The nerve cells acts in this process of carrying the signals inside the body.
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PLEASE I NEED HELP NOW
Which statement describes a possible negative impact of scientific research
regarding genetically modified crops?
A. Genetically modified crops may reduce the risk of starvation in
countries with high rates of poverty.
B. Genetically modified crops may produce more food than original
varieties.
C. Genetically modified plants may require more water to be
productive.
D. Genetically modified crops may require less pesticides than
original varieties.
The possible negative impact of scientific research regarding genetically modified crops is option C, that is genetically modified plants may require more water to be productive
Genetically modified crops (GM crops) are agricultural plants whose DNA has been altered through the application of genetic engineering techniques. Plant genomes can be modified physically or by transferring sequences contained in T-DNA binary vectors using Agrobacterium. The objective is mainly to give the plant a new characteristic that does not develop naturally in the species.
Thus, option C is correct, the possible negative impact of scientific research regarding genetically modified crops, is genetically modified plants may require more water to be productive.
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How can glucose be linked together to form both cellulose and carbohydrates? (I really need help)
Glucose polymerizes to form starch or carbohydrates by condensation.
What is glucose?Glucose is a monomer that contains six carbon atoms. We know that both starch and carbohydrates are all macromolecules. This implies that they are formed by the linkage of smaller molecules.
As a macromolecules, several glucose molecules are joined together in a long chain. This sort of chain could be obtained for both glucose and starch and the number of monomer units run into thousands of molecules.
In this case, the smaller molecules that are linked are the glucose molecules. This occurs by the process of condensation. There is a molecule of water lost as the glucose molecules are agglomerated together to form glucose or carbohydrates.
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Which concept was proposed by darwin? which concept was proposed by darwin? ocean warming natural selection ecosystem structure energy flow
Darwin proposed a theory of natural selection
What is the Darwinian theory in ?Darwin argued that species can evolve through time, that new species develop from older ones, and that all species descended from a single progenitor. According to this theory, every species has its own distinct set of heritable (genetic) differences from the common ancestor, which have been slowly accruing over very long time periods.
Charle's darwin theory of evolution by natural selection is the foundation upon which modern vocabulary theory is built.
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How does the function of the receptor (carrier) protein differ from that of a carrier protein?
Answer:
In biology, a carrier protein is a type of protein that transports a specific substance through intracellular compartments, into the extracellular fluid, or across cells as opposed to channel proteins, which is another membrane transport protein, that is less selective in transporting molecules.
Explanation:
what is the
function of Petiole
Explanation:
The stalk of the leaf is called petiole.
Functions :-
(i) It helps to hold the leaf blade to the light.
(ii) It also helps the blade to flutter in wind.
3. What is the relationship between photosynthesis and cellular
respiration?
* 17 points
O
A. The reactants of cellular respiration and photosynthesis are the same but their
products are different.
B. Cellular respiration is one of the steps in the process of photosynthesis.
C. Photosynthesis is one of the steps in the process of cellular respiration.
D. The reactants of cellular respiration are the products of photosynthesis and the
reactants of photosynthesis are the products of cellular respiration.
Which of the following is not true about cells?
Which of the following is not true about cells?
All living cells always come from other living cells.
All living thing begins life as a single cell.
It takes many cells to make a living organism.
The cell is the basic unit of the structure and function of life.
Structures called _________ house blood vessels that carry blood from the medullary cavity and periosteum to the osteon. these passages run perpendicular to the long axis of the bone.
Structures called the perforating canals house blood vessels that carry blood from the medullary cavity and periosteum to the osteon.
What are perforating canals?The blood vessels that go via the central canals can link to the blood vessels in the periosteum that covers the bone through perforating canals, which act as conduits. Trabeculae, or thin, atypically formed plates, are organised in a latticework network to make up trabecular bone.
Osteocytes are found in lacunae that are located in between calcified lamellae in trabeculae, just like osteons are in osteons. Similar to osteons, trabeculae have canaliculi that link the osteocytes. However, each osteocyte can exchange nutrients with neighboring blood vessels since each trabecula is only just a few cell layers thick. Therefore, a central canal is not required.
Therefore, perforating canals house blood vessels that carry blood vessels from the medullary cavity and periosteum to the osteon.
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Question 1
After the shake mix has thawed what are the first six
items you must remove?
LECT ONE
The lid, carburetor, hopper, plunger, dasher and
cap
b) The lid, carburetor, hopper, o-rings, float and
cap
c) The lid, carburetor and hopper, o-rings
C
d) The lid carburetor, hopper, drip tray, dasher
and cap
Answer is B. The lid, carburetor, hopper, o-rings, float and cap
Step 1: Disassemble the assemblies: To disassemble the stationary half of the shaft seal assembly, the dasher valve assembly, and the dispensing valve assembly, follow the instructions in the owner's handbook.
Step 2: Remove the carb tube. Take the carb tube out of the hopper's bottom. Make sure the O-rings are removed.
Step 3: Remove the drip tray. Empty the product within the drip tray after removing it.
Step 4: Thoroughly wash every component that was taken apart, including the hopper for mixing materials and frozen cylinder.
Step 5: Brush the valve body and plunger bore - Use a medium brush to scrub the plunger bore and bottom of the valve body completely.
Step 6: Clean the machine's exterior. Use a soft cloth towel to do this. Never clean with abrasive pads, towels, or cleaners. The machine's surfaces may be harmed and scratched by these.
Hence answer is B. lid, carburetor, hopper, o-rings, float and cap.
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(Giving BRAINLIEST!) Which example is most clearly narrated in third-person omniscient point of view?
A. I wasn't the only one who thought something fishy was going on with those two
B. Valerie couldn't believe her ears: the performance had ben canceled
C. Even if you think you're prepared, its a good idea to go over your lines before the show
D. Everyone, including Daniel, believed that he wad destined for greatness.
The example that is most clearly narrated in third-person omniscient point of view is as follows: everyone, including Daniel, believed that he wad destined for greatness (option D).
How is the third-person omniscient point of view used in writing?The third person omniscient point of view is the most open and flexible POV available to writers. As the name implies, an omniscient narrator is all-seeing and all-knowing.
It is a method of storytelling in which the narrator knows the thoughts and feelings of all of the characters in the story.
Therefore, an example that is most clearly narrated in third-person omniscient point of view is Everyone, including Daniel, believed that he wad destined for greatness
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Sandy Soils have large particles and have large air spaces. How does this affect
the way the soil holds water way the air
Since sandy soils have large air spaces and large particles it cannot hold water. Light, warm, and dry sand has a tendency to be acidic and deficient in nutrients. Due to their high sand content and low amount of clay, sandy soils are frequently referred to as "light soils" (clay weighs more than sand).
These soils are simple to work with and have quick water drainage. Compared to clay soils, they warm up more quickly in the spring, but they tend to dry up in the summer and have low nutrient levels that are washed away by rain.
By enhancing the soil's ability to store nutrients and water, the addition of organic matter can assist in providing plants with an extra boost of nutrients.
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the best-known bacteriophage community is that of the gut virome. a virome is a community of viruses within a host ecosystem (for example, the human or other animal intestinal tract).the gut community receives continual influx of new bacteria and phages while shedding present members. some prophages of pathogenic bacteria express virulence factors such as the shiga toxin of shigella or of e. coli o157:h7, whereas other prophages may protect the gut bacteria from superinfection by some of the many types of phages present in the gut. identify the evidence provided for the positive effects of phages. choose one or more: a. phage particles may suppress over-reactive t cells and tumor formation. b. phages may contribute beta-1,3-galactosyltransferase enzymes for healthy colon function. c. phage infection may increase bacterial susceptibility to antibiotics. d. phages may limit bacterial numbers, thus maintaining gut homeostasis. e. phages may attack and erode biofilms such as pseudomonas aeruginosa.
B.) Phages may contribute beta-1,3-galactosyltransferase enzymes for healthy colon function.
D.) Phages may limit bacterial numbers, thus maintaining gut homeostasis.
Phage- Bacteriophages, or phages as they are commonly called, are viruses that only infect and multiply in bacterial cells. They are regarded as the most prevalent biological agent on earth and are widely distributed throughout the environment.
Beta-1,3-galactosyltransferase- UDP-alpha-D-galactose to substrates having a terminating beta-N-acetylglucosamine (beta-GlcNAc) residue is transferred by the beta-1,3-galactosyltransferase. Involved in the production of glycolipid and glycoprotein carbohydrate molecules.
Homeostasis- The capacity of an organism to retain internal stability in response to external changes is known as homeostasis. The finest illustration of homeostasis is the body's internal temperature.
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Following which political perspective do people argue that drug laws reflect the interests of the rich and powerful and criminalize poor people and minorities?
People who hold a radical left political stance contend that drug laws penalize minorities and the poor while serving the interests of the wealthy and powerful.
Describe drugs and give examples:A drug is a chemical compound that, when administered to a living entity, has a biological effect. In pharmacology, a drug is often a chemical compound with a well-known structure. A chemical substance known as a pharmaceutical medicine is used to treat, cure, prevent, or diagnose illnesses as well as to enhance wellbeing. It is also referred to as a drug or medicine.
What are the three primary drugs?Drugs by category:
Depressants - slow down the central nervous system's activity.Hallucinogens - affect how you experience touch, taste, sound, smell, and sight.Stimulants hasten the central nervous system's operation.To know more about Drug visit:
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How big were the neo-assyrian, persian, and zhou polities in comparison to one another? place them in order from smallest to largest, measured as their maximum extent, east to west.
The largest empires, in order from smallest to largest, are: Zhou, Neo-Assyrian and Persian.
What were these kingdoms?The Zhou dynasty was the third Chinese dynasty in its traditional history, which was the last in which the dynasties of kings occurred. This dynasty was within what we now know as China, occupying part of its center. This dynasty is divided into two: Western Zhou and Eastern Zhou.
The Neo-Assyrian Empire was the last and largest phase of Assyria to occur in the Iron Age. It was one of the largest empires in the world, they had as an idea the domination of the world leading them to dominate the ancient Near East, parts of the Arabian peninsula and North Africa, among other parts through which it spread.
Finally, we have the Persian empire, which is one of the most recent, which was a series of imperial dynasties that centered in what we now know as Iran. Which after the revolution in this country the monarchy was overthrown and replaced by the Islamic Republic.
Therefore, we can confirm that the largest empires, in order from smallest to largest, are: Zhou, Neo-Assyrian and Persian.
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Epinephrine inhibits salivary gland activity and muscle cell contraction in the airways, yet stimulates glycogen release in muscle cells and heart muscle cell contraction. How could one hormone have opposing effects on different organs?.
Epinephrine inhibits salivary gland activity and muscle cell contraction in the airways, yet stimulates glycogen release in muscle cells and heart muscle cell contraction. One hormone could have opposing effects on different organs as e. cells in the different tissues would have epinephrine receptors coupled to different signaling pathways.
A hormone uses a cell signaling pathway to induce a response from a cell and help in the proper functioning of the cell. It depends on the receptors of the hormone in different cells that decide which signaling pathway will be taken by a hormone.
A hormone will have two opposing actions in two different cell types based on the receptors present for that hormone on these cells. The receptors for epinephrine in the muscle cells activate a signaling pathway that stimulates the production of glycogen. Yet, the receptors for the same hormone i.e epinephrine present in the airways inhibit the salivary gland activity.
Although a part of your question is missing, you might be referring to this question:
Epinephrine inhibits salivary gland activity and muscle cell contraction in the airways, yet stimulates glycogen release in muscle cells and heart muscle cell contraction. How could one hormone have opposing effects on different organs?
a. Cells in the tissues that are suppressed do not express an epinephrine receptor.
b. Cells in responsive tissues have signal transduction pathways.
c. Only responsive tissues are exposed to the epinephrine in the blood stream.
d. Cells in tissues that are not responsive contain enzymes that break down epinephrine when it enters the cell.
e. Cells in the different tissues would have epinephrine receptors coupled to different signaling pathways.
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When purified cytochrome oxidase is exposed to cyanide, the cyanide binds reversibly and with high affinity to the enzyme’s active site. What will be the likely outcome if mitochondria are exposed to high levels of cyanide?.
(A) "The cyanide will prevent movement of electrons along the electron transport chain." will be the likely outcome if mitochondria are exposed to high levels of cyanide when purified cytochrome oxidase is exposed to cyanide, the cyanide binds reversibly and with high affinity to the enzyme’s active site.
An electron transport chain (ETC) is a collection of protein complexes and other molecules that connect protons (H+ ions) across a membrane with the transfer of electrons (through redox processes, where both reduction and oxidation occur concurrently) from electron donors to electron acceptors. a collection of proteins found in mitochondria's inner membrane.
Four multi-subunit big enzyme complexes and two mobile electron carriers work together to transport the electrons from NADH and FADH2 to the ETC. The electron transport chain's enzymes are mostly membrane-bound.
It takes energy to move electrons via the electron transport chain. Adenosine triphosphate (ATP) is synthesized by using the energy from redox processes to produce an electrochemical proton gradient.
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Question correction:
When purified cytochrome oxidase is exposed to cyanide, the cyanide binds reversibly and with high affinity to the enzyme's active site. What will be the likely outcome if mitochondria are exposed to high levels of cyanide?
A. The cyanide will prevent movement of electrons along the electron transport chain.
B. The cyanide will block movement of protons across the inner mitochondrial membrane.
C. The cyanide will inhibit transfer of electrons from NADH to initiate electron transport.
D. The cyanide will prevent oxygen from reaching the mitochondrial matrix.
Which of these are gymnosperms?
(A) conifers
(B) cycads
(C) ginkgoes
(D) all of these
Biological fluids regulate ph values using __________. This is achieved by accepting _________ when ph is low and donating _________ when ph is high.
Biological fluids regulate pH values using buffers. This is achieved by accepting H⁺ ions when pH is low and donating H⁺ ions when pH is high.
pH is the potential of hydrogen, that gives an idea about the acidity of basicity of a solution. pH can have values ranging from 0 to 14. A pH value of 7 is neutral. Values below 7 are acidic and values above 7 are basic.
Buffers are the solutions that have the ability to resist any change in pH when any acidic or basic component is added to them. A buffer solution consists of a weak acid and its conjugate base or vice versa. The human body consists of natural buffer, which is blood.
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how can microscopes help you see cells? first, think of a. good place to collect a sample of cells
Microscopes helps to see cells by magnifying the sample using the different magnification strength of lens.
Microscopes- A laboratory tool called a microscope is used to look at items that are too tiny to be seen with the human eye. The study of tiny objects and structures under a microscope is known as microscopy. The microscope has 4 objective lenses: Scanning (4x), Low (10x), High (40x), and Oil Immersion (100x).
Cell- The analysis of structure and function of cells is known as cell biology, and it is based on the idea that a cell is the basic building block of all life. A thorough grasp of an organisms and tissues that cells make up is made possible by concentrating on the cell.
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in a nutrient addition plant experiment, a scientist adds (1) nitrate to the media and the plant shows significant growth or (2) phosphate to the media and no significant growth is noted. what conclusion can be made about the nutrients in relation to this plant?
The conclusion can be made about the nutrients in relation to this plant is that the nitrogen is a limiting nutrient.
Reason why Nitrogen is the limiting factor- In most natural systems, nitrogen (N) and phosphorus (P) are the predominant rate-limiting nutrients and the main ingredients of agrochemical fertilizers.
Fertilizers- Material, whether natural or manufactured, that contains the chemical components that help plants grow and produce more. Fertilizers may restore chemical components that previous crops removed from the soil or increase the land's inherent fertility.
Nutrient- The body requires nutrients for energy, building blocks, and the regulation of bodily functions. Based on biochemical characteristics, there are six main categories of nutrients: carbs, proteins, fats, water, vitamins, and minerals.
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Q. In a nutrient addition plant experiment, a scientist adds (1) nitrate to the media and plant shows significant growth or (2) phosphorus to the media no significant effect is noted. What conclusion can be made about the nutrients in relation to this plant?
a)Phosphorus is a limiting nutrient.
b)The plant had an excess of nutrients, limiting its growth.
c)The plant does not require nitrogen.
d)Nitrogen is a limiting nutrient.
e)The plant does not require phosphorus.
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……….?.?.?.?.?.?.?.?.?.?.?.?.?.?.?.?.?.?.?.?.?.
Answer:
???????
Explanation:
?????
4. If you were to revise this activity to include the enzyme DNA polymerase, which step in the directions
would you add it too?
Answer:
S phase
Explanation:
In the eukaryotic cell cycle, chromosome duplication occurs during "S phase" (the phase of DNA synthesis) and chromosome segregation occurs during the "M phase" (the mitosis phase). During S phase, any problems with DNA replication trigger a ‘'checkpoint" — a cascade of signaling events that put the phase on hold until the problem is resolved. The S phase checkpoint operates like a surveillance camera; we will explore how this camera works on the molecular level. The last 60 years of research in bacterial species (specifically, Escherichia coli) and fungal species (specifically, Saccharomyces cerevisiae), have continually demonstrated that several major processes during DNA replication are evolutionarily conserved from bacteria to higher eukaryotes.
Amongst the array of proteins at the replication fork, DNA polymerases are central to the process of replication. These important enzymes can only add new nucleoside triphosphates onto an existing piece of DNA or RNA; they cannot synthesize DNA de novo (from scratch), for a given template. Another class of proteins fills this functional gap. Unlike DNA polymerases, RNA polymerases can synthesize RNA de novo, as long as a DNA template is available. This particular feature of de novo synthesis is similar to what happens during mRNA transcription.
I hope this helps and answers your question I hope this is the answer you were looking for! Have a great day!
We have to add s phase in the process of cell cycle at which the enzyme DNA polymerase have the significant role.
What is cell cycle?Cell cycle is the process of regenerating new cells by dividing the existing cell through several stages namely prophase, telophase, s-phase etc. Both prokaryotes and eukaryotes undergo cell division and produce the identical daughter cells.
Between G1 phase and G2 phase, the cell cycle's S phase (also known as the "synthesis phase") is when DNA replication occurs. [1] Since precise genome duplication is essential for effective cell division, the S-phase mechanisms are strictly regulated and highly conserved.
One nucleotide at a time, DNA polymerase adds nucleotides to the three prime (3')-end of a DNA strand. DNA polymerases are necessary to replicate the cell's DNA during cell division in order for a copy of the original DNA molecule to be transferred to each daughter cell. Genetic information is transmitted in this manner from one generation to the next.
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The plasma (cell) membrane
O is composed of a bilayer of proteins
O is composed of a bilayer of phospholipids
O is composed of chains of carbohydrate molecules
O is a complex of carbohydrates and proteins
The plasma (cell) membrane
Answer:is composed of a bilayer of phospholipids.
Explanation:The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins. A phospholipid is a lipid made of glycerol, two fatty acid tails, and a phosphate-linked head group.
Of the total solar energy that reaches the earth, ------ percent is captured by the cells of photosynthetic organisms.
On average, leaves and other surfaces reflect between 98 and 99 percent of the solar energy that enters the Earth. These reflections are then absorbed by other molecules, who then turn the energy into heat. Only 1 to 2 percent is therefore available for plants to absorb.
What is photosynthetic active radiation?Plants use a region of the light spectrum called photosynthetic active radiation (PAR), or light with wavelengths between 400 and 700 nanometers, for photosynthesis.
Only around 10% of the energy is transferred to the following trophic level as a result. The ecosystem has a particular energy flow.
Therefore, only 2% solar energy is captured by the cells of photosynthetic organisms.
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Which phases of cellular respiration occur in the mitochondria?
Answer:
G2 phase occurred in mitochondria
State the form in which the energy is present in the carbohydrate eaten by the wildebeest
The energy present in the carbohydrate eaten by the wildebeest is stored in the form of chemical energy.
After digestion, carbohydrates are converted into glucose for quick energy uptake or immediate energy requirements. Carbohydrates are converted into glycogen or fat for long-term energy storage.Sugars serve as the building blocks for the polymers that make up carbohydrates.In humans and other vertebrates like wildebeest, glucose is stored in the form of glycogen, which is composed of glucose monomers. Glycogen, a very branched molecule that is often retained in muscle and liver cells, is the animal analogue of starch. Glycogen is broken down to release glucose whenever blood glucose levels drop.Therefore, energy of carbohydrates is stored as chemical energy in the form of glycogen in herbivorous mammals such as the wildebeest.
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Identify the characteristics of organisms in the animal kingdom?
There are different kingdoms in the world such as the kingdom Plantae, kingdom Animalia.
What are the characteristics of kingdom animalia?This animals are multicellular organisms which do not contain chlorophyll.They are heterotrophic organisms. That is they have to depend on other organisms for their food.They require oxygen for aerobic respiration.They have legs to walk, Wings to fly and have forelimbs and hindlimbs.They do not posses cell wall.
Therefore, There are different kingdoms in the world such as the kingdom Plantae, kingdom Animalia.
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Epinephrine inhibits salivary gland activity and muscle cell contraction in the airways, yet stimulates glycogen release in muscle cells and heart muscle cell contraction. How could one hormone have opposing effects on different organs?.
Epinephrine inhibits salivary gland activity and muscle cell contraction in the airways, yet stimulates glycogen release in muscle cells and heart muscle cell contraction. One hormone could have opposing effects on different organs as e. cells in the different tissues would have epinephrine receptors coupled to different signaling pathways.
Hormones can help a cell to perform various specialized functions after it activates the receptors of the cell through which signal pathways are activated for the cell.
The receptors of a cell are linked to different cell signaling pathways and this is the reason that a hormone can produce two opposing effects in different types of cells.
The epinephrine hormone activates receptors of muscle cells that help in signaling pathways for the production of glycogen. The same epinephrine, in the airways, couples with a receptor that activates an inhibitory pathway for muscle contraction.
In this way, hormones help specialized cells to perform their functions by activating different signaling pathways.
Although a part of your question is missing, you might be referring to this question:
Epinephrine inhibits salivary gland activity and muscle cell contraction in the airways, yet stimulates glycogen release in muscle cells and heart muscle cell contraction. How could one hormone have opposing effects on different organs?
a. Cells in the tissues that are suppressed do not express an epinephrine receptor.
b. Cells in responsive tissues have signal transduction pathways.
c. Only responsive tissues are exposed to the epinephrine in the blood stream.
d. Cells in tissues that are not responsive contain enzymes that break down epinephrine when it enters the cell.
e. Cells in the different tissues would have epinephrine receptors coupled to different signaling pathways.
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