Satiety and satiation are first influenced by sensory and cognitive elements, such as anticipation of the food or drink being ingested, its flavor, texture, and aroma, as well as any links with prior experiences that may emerge.
Post-ingestive variables begin to work after the meal or drink enters the stomach. At first, satiation is brought on by signals sent from the distended stomach to the brain. Hormones that aid in satiation and fullness are produced from the stomach as digestion progresses in the intestines.
The nutrients themselves are sensed by specialized receptors in several locations throughout the body, including the brain, during the post-absorptive stage of the satiety cascade, giving knowledge about nutritional status that also influences satiety.
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nutrients from croplands are carried by the mississippi river into the gulf of mexico. if nutrients are good for growth, why are scientists concerned about this nutrient influx? higher productivity may result in increased respiration by bacteria feeding on sinking algal material, depleting oxygen within gulf waters. the nutrient runoff depletes nitrate, which cannot be made industrially. higher productivity may support greater numbers of sharks. higher productivity may support greater diversity of phytoplankton species.
Higher productivity may result in increased respiration on sinking algal material, depleting oxygen within gulf waters.
What is respiration ?In terms of physiology, respiration is the transfer of oxygen from the external environment to the cells inside tissues and the removal of carbon dioxide in the opposite direction, that is, back into the external environment.
The biochemical definition of respiration, which describes a metabolic process through which an organism obtains energy (in the form of ATP and NADPH) by oxidizing nutrients and releasing waste products, is distinct from the physiological definition. Although cellular respiration and life as we know it in animals depend on physiologic respiration, the two processes are different: cellular respiration occurs within individual organism cells, whereas physiologic respiration deals with the diffusion and transport of metabolites between the organism and the outside environment.
By using both ventilation and perfusion, the lung exchanges gas.
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Some neurons have short axons that do not extend beyond the vicinity of the cell body. what are these called? .
a. golgi type ii neurons
b. golgi type i neurons
Answer:
a.Golgi type ii neurons
Explanation:
Golgi type ii neurons have few sparsely branching dendrites and dendritic stalked appendages with or without terminal swellings.
what is all the tiny photoautotrophs found near the surface of a body of water
Answer:
Phytoplankton. It refers to all the tiny photoautotrophs found on or near the surface of a body of water. Phytoplankton usually are the primary producers in aquatic ecosystems.
Explanation:
Hope it helps! =D
Which option identifies the best way for the plant breeder to succeed in the followingscenario?
A plant breeder wants to make a specific cross between one variety of flower and another, and wishes
to make sure that the plant can only be pollinated by the chosen variety of flower.
O remove the anthers and the style but leave the flower open to air and insect pollinators
O remove the stigma bu leave the flower open to air and insect pollinators
O remove the stigma and isolate the flower from air and insect pollinators
O remove the anthers and isolate the flower from air and insect pollinators
The best way to make sure that only a specific cross occurs between one variety of flower and other is to: (b) remove the stigma but leave the flower open to air and insect pollinators.
Cross in reproductive biology is the fusion of the male gamete and the female gamete to give birth to offspring. The cross generally happens within the same species, however it can happen outside the species too.
Stigma is the receptive organ and a part of the female reproductive system in flowers. It is sticky substance on its tip, so as to receive the pollen grains. Upon receiving pollen forms pollen tube to transport the male nucleus to the ovary. The stigma is attached to the ovary through a style. If the stigma is removed, the flower will not be able to receive any unwanted pollen and the desired pollen can be introduced artificially to perform the specific cross.
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briefly describe the function of the four types of organic compounds.
1. carbohydrates. stores cellulose and provides structural support in plants (____), fungi, and arthropods (chitin)
2. lipids. can store long-term (____); provides waxy coatings (plant leaves/ear wax), makeup hormones, and steroids.
3. proteins. essential structural component of body tissues; (____) help catalyze (speed up) chemical reactions.
(number four doesn't matter)
Mention the role of Ca 2+ ions during muscle contraction.
Answer:
ticfhxhfcjgcgjcgjgjgjcgjc
Which option identifies what the florist should save, rather than prune away in the following scenario?
A florist is trying to reduce the flowers that will grow on a rose bush, so that the remaining flowers will
be larger and will grow on long central stems suited to cutting.
O terminal bud <
O spur
O lateral bud
O Crown <
Note: it’s either A or D
A florist is trying to reduce the flowers that will grow on a rose bush , so that the remaining flowers will be larger and will grow on long central stems suited to cutting therefore the florist will save the terminal bud and is denoted as option A.
What is Terminal bud?This is the type of bud which is located as the ape-x of the stem and is responsible for all of its new growth. This is therefore the reason why it is known as the main bud of the plant.
In a situation whereby the florist wants to reduce the flowers that will grow on a rose bush, so that the remaining flowers will be larger, the florist will save the terminal bud which is therefore the reason why option C was chosen as the most appropriate choice.
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Coloca las partes correspondientes a cada número.1._____________________________________________________2._____________________________________________________3._____________________________________________________4._____________________________________________________5._____________________________________________________6._____________________________________________________123456
The following graph shows the leading causes of death among Americans in 2007.
Image courtesy of the National Institutes of Health (2007)
CLRD = Chronic Lower Respiratory Disease
Which of the following conclusions can be drawn from the graph?
A.
More Americans died from either heart disease or cancer in 2007 than all other causes combined.
B.
More people in America died from Alzheimer's disease in 2007 than in any other country.
C.
More Americans died from cancer in 2007 than strokes, injuries, and CLRD combined.
D.
Fewer people in America die from unintentional injuries today than they did in 2007.
Can someone please Help me out I really need the answers
1. List four structures in a eukaryotic animal cell that aren’t found in prokaryotic cells
2. Name two structures found in both prokaryotic and eukaryotic cells.
Answer:
Answer to question 1.
mitochondrialysosomesgolgi apparatusperoxisomesAnswer to question 2.
cell membranecytoplasmExplanation:
Macronutrient recommendations for athletes, such as carbohydrates, are best expressed in what way due to the high amount of calories athletes need to consume?.
Macronutrient recommendations for athletes, such as carbohydrates, are best expressed in grams/kilogram of body weight due to the high amount of calories athletes need to consume.
Athletes require more macronutrients than average people as they indulge in a lot of muscle activity. As they have more muscle activity, their macronutrient requirements, such as carbohydrates, are more than an average person. Hence, their calorie intake is more.
To measure how much macronutrients an athlete should use grams/kilogram of body weight are used. The grams/kilograms are bigger units for weighing so that intake of macronutrients for athletes can be done properly. The diet of an athlete shall be properly knowledge as his diet heavily influences his performance and his muscle ability.
Although a part of your question is missing, you might be referring to this question:
Macronutrient recommendations for athletes, such as carbohydrates, are best expressed in what way due to the high amount of calories athletes need to consume?
a. calories of body weight
b. percentage of body weight
c. milligrams/kilograms of body weight
d. grams/l#kilograms of body weight
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The thick band of fibers that connects the two hemispheres of the brain is called the __________. corpus callosum cerebral cortex thalamic extension basal ganglia
The thick band of fibers that connects the two hemispheres of the brain is called the corpus callosum.
What is the function of the corpus callosum?The greatest connective network in the brain is the corpus callosum, which is Latin for "tough body."The corpus callosum is a significant mass of more than 200 million myelinated nerve fibers that connects the two hemispheres of the brain and enables the communication between the right and left sides of the brain.This cerebral highway serves as a conduit for the continual exchange of sensory, motor, and cognitive information.What is the structure of the corpus callosum?The roof of the lateral ventricles is made up of part of the corpus callosum.Four distinct neural pathways that connect various regions of the hemispheres make up the corpus callosum. The rostrum, genu, trunk or body, and splenium are the neural pathways.The isthmus is a thin area that lies between the trunk and the spleen. The tapetum, a group of fibers from the trunk and spleen, forms the roof of each lateral ventricle.To learn more about corpus callosum visit:
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what is a cell and why is it important
Answer:
The smallest unit that can live on its own and that makes up all living organisms and the tissues of the body
Answer:
Everything living in existence needs cells in order to operate on a daily basis. Cells have many parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell. Here are some of the major parts of the cell you may recognize from your high school textbook:
You may have heard the phrase “cells are the basic building blocks of life,” numerous times in school when growing up. This is because the human body is made up of trillions - yes, TRILLIONS - of cells. These cells carry out specialized functions such as providing structure for the body, taking in nutrients from food, and converting nutrients into energy.
Each and every cell is made up of many different parts, each with its own unique function to help the body get through the day. Some of the major parts of human cells include the cytoplasm, cytoskeleton, endoplasmic reticulum, the Golgi apparatus, lysosomes and peroxisomes, the nucleus, and mitochondria. You can help take better care of your cells so they can carry out their job easier largely through your diet and the nutrients you consume.
Suppose you were preparing to visit a space station that uses photosynthesis to provide you with oxygen. What color lightbulbs should you take with you?.
Suppose you were preparing to visit a space station that uses photosynthesis to provide you with oxygen. So red and blue color lightbulbs you should take with you.
The largest modular space station in low Earth orbit at the moment is the International Space Station. Five space agencies are involved in this international collaboration project: NASA, Roscosmos, JAXA, ESA, and CSA.
A sizable spacecraft in orbit orbiting the Earth is called the International Space Station. Crews of astronauts and cosmonauts reside there as a home. The space station serves as an exceptional science lab.
Without protection, people would not be able to exist in space because it is so deadly. Since there is no air in space, breathing is impossible. Because it's chilly, you'd freeze. Additionally, you would get a really, extremely horrible sunburn because there is a lot of harmful radiation (from the Sun and the rest of the Universe).
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Hemoglobin is a protein that is destined to be exported from the cell in which it was created. what is the path of hemoglobin from creation to export?
The path of hemoglobin from creation to export are:
Hemoglobin transports O2 from lungs to repairing tissues, used for aerobic metabolism in mitochondriaO2 diffuses freely or binds to myoglobin aiding transport to mitochondria.CO2 is produced, carried back to lungs by hemoglobin or in the plasma as HCO3-What is haemoglobin?Haemoglobin is an iron-containing substance in red blood cells that transports oxygen from the lungs to the rest of the body. it consists of a
protein (globulin),haem (a porphyrin ring with an atom of iron at its centre).It can also be defined as an oxygen carrying compound found in human blood. It is found to contain 0.3335% iron by mass. It is already known that one molecule of hemoglobin contains four atoms of iron.
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A student claims that glucose acts as a raw material for the production of cellulose, which is an important component of the plant cell wall. The chart lists the student's statements about the claim.
1. Cellulose is indigestible in most animals.
2. Both cellulose and glucose are carbohydrates.
3. Cellulose is made up of repeating glucose units.
4. Cellulose is found in large amounts in most plants.
The student's claim is supported by
statement 1
statement 2
statement 3
statement 4
cellulose is the important component of cell wall. Cellulose is indigestible in most animals. thus the statement 1 is correct.
what is the function of cellulose ?Cellulose is a tough, water insoluble and fibrous polysaccharide made up of thousands of glucose molecules attached together to form a chain.
The cellulose is useful organic molecule found in all plants and plant products, every parts of the plant such as stem, leaf, root, flower, and fruit contains cellulose.
Cellulose is a structural polysaccharide connecting cells to form tissues, signaling cells to grow and divide, controlling the shape of plant cells allowing cells to withstand the turgor pressure of the fluids inside them
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A substance that accelerates any chemical reaction but is not consumed in the reaction is a
Answer:
Catalyst
Explanation:
A catalyst is a substance that increases the rate of a chemical reaction.
Answer:
catalyst
Explanation:
Analyze the data table at the top of the page. What is the dependent variable?
Question: Where is the data table?
Answer:data table?
Explanation:
which protein drink should athletes with diabetes drink
Answer: sugar free
Explanation: they should not have sugar
Answer:
A whey protein drink is a good one.
Explanation:
This is because according to a study "whey powder stimulated insulin secretion in people with normal body weight and triglyceride levels."
As rna is synthesized in transcription, it can curl into a three-dimensional shape that is dictated by ______ within the molecule.
As RNA is synthesized in transcription, it can curl into a three-dimensional shape that is dictated by complementary base pairing within the molecule.
RNA- All living cells contain ribonucleic acid (RNA), a nucleic acid that resembles DNA in structure. However, RNA is often single-stranded, unlike DNA. Instead of the deoxyribose present in DNA, the backbone of an RNA molecule is made up of consecutive phosphate groups as well as the sugar ribose.
Transcription- The method through which a cell copies a DNA fragment into RNA. The messenger RNA (mRNA) copy of this RNA contains the genetic material required for protein synthesis in a cell.
Complementary base pairing- One of the two nitrogen-containing pieces of a nucleotide that form a covalent connection to join DNA or RNA strands is referred to as a complimentary base.
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When yeast takes in glucose (sugar) it converts the sugar into which molecule?
A. Oxygen
B. ATP
C. Mitochondria
D. Sucrose
Answer:
ATP
Explanation:
The correct answer is ATP
Which of the following would contain membrane-bound organelles? (select all that apply)
Prokaryotic Cells
Bacteria Cells
Eukaryotic Cells
Plant Cell
Virus
Animal Cell
Answer: Eukaryotic cells
Explanation: Eukaryotic cells contain all membrane bounded organelles.
golgi bodies, mitochondria, nucleus, vacuoles etc
Nad is a coenzyme for many enzymes involved in redox reactions. this means that __________.
This implies that if NAD+ is not present, enzymes that need on it as a co-enzyme will not work properly.
Describe a coenzyme:Many enzymes need coenzymes, which are organic substances, for catalytic activity. They frequently contain vitamins or vitamin compounds. They can occasionally serve as catalysts in the absence of enzymes, however not as efficiently as when an enzyme is present.
How can coenzymes support enzymes?Coenzymes support the actions of enzymes in turn. To assist enzymes in carrying out their tasks, they bind to them in a loose manner. Coenzymes are organic, non-protein molecules that help an enzyme's catalysis, or reaction.
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Which of the following characterizes best describe the chapparral?
Explanation: i hope this helps :)
4. Which has a higher concentration, 100 mL of water with 1 gram of sugar dissolved, or 100 mL of water with 10 grams of sugar dissolved?
5. Recall from Unit 1 that a solution is made up of a solute and a solvent.
What are the definitions of these two terms?
Solution:
Solvent:
6. When substances diffuse, they move from an area of ___________ concentration to an area of _________________ concentration.
7. True / False: In diffusion, no additional energy is required by the cell.
8. What is dynamic equilibrium?
9. What are two types of materials that move across a membrane by facilitated diffusion?
10. What general type of cell transport does not require any energy from the cell?
4. 100 mL of water with 10 grams of sugar dissolved has a higher concentration.
5. Solution is a solvent with dissolved solute. A solvent is a substance capable of dissolving a solute to form a solution.
6. Diffused substances move from areas of higher concentrations to areas of lower concentrations.
7. No energy is needed in simple diffusion.
8. Dynamic equilibrium is also known as moving equilibrium.
9. ions and amino acids
10. Passive transports
Cellular transportationA 100 mL of water with 1 gram of sugar dissolved has a lower concentration than 100 ml of water with 10 grams of sugar dissolved. The latter contains more dissolved solute.
A solution is formed when a solvent dissolves a solute. A solvent is just a substance capable of dissolving solutes to form solutions.
When a substance diffuses spontaneously, it moves from areas of higher to areas of lower concentration. If it happens otherwise, such a diffusion has become facilitated.
Simple diffusions do not require energy. However, facilitated diffusion may require energy in the form of ATP.
Dynamic equilibrium occurs when substances keep moving to and from one region to another without any net movement.
Materials that are capable of moving across a membrane by facilitated diffusion include ions, carbohydrates, amino acids, nucleosides, etc.
Cell transports that do not require energy are said to be passive. Alternatively, they are active when they require energy.
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Suggest reasons why the information represented in the pyramid of numbers of
animals of one of the ecosystems you studied may not truly represent that ecosystem.
One of the examined ecosystems' information depicted in the pyramid of animal counts may not accurately reflect that ecosystem because it is changing everyday.
Every form of plant and animal, as well as bacteria, viruses, and planktonic, aquatic, and marine creatures, as well as the ground and atmosphere, are considered to be a part of an ecosystem.
Because it only provides information on the amount of organic matter present at a given moment, not on productivity and turnover time, the information reflected in the pyramid of animal populations of one ecosystem may not accurately represent that ecosystem.
In one of the ecosystems researched, the information depicted in the pyramid of animal numbers may not accurately reflect that ecosystem since, as the ecology changes daily, the numbers would likewise be changing. Additionally, the figures would represent estimates rather than accurate counts of the organisms in the ecosystem.
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The hormone that is primarily involved in the control of bone remodeling is calcitonin.
a. false
b. true
The given statement "The hormone that is primarily involved in the control of bone remodeling is calcitonin" is False. Other hormones such as the parathyroid hormone, glucocorticoids, thyroid hormones etc. are all included in the control of bone remodeling and not calcitonin.
Is calcitonin a factor in the remodeling of bone?By preventing osteoclast activity, calcitonin hormone promotes osteoblast proliferation and prevents bone resorption.
Which hormones are involved in the remodeling of bones?PTH, or parathyroid hormone, plays a very significant role in bone remodeling. PTH levels that are too high can activate osteoclasts and lead to severe bone loss. Your blood’s calcium content causes the release of PTH.
Along with PTH, other hormones such as glucocorticoids, calcitriol, sex hormones and thyroid hormones are also included in this process of bone remodeling to some extent.
What is the function of calcitonin?The thyroid is a tiny, butterfly-shaped gland that is found close to the throat that produces the hormone calcitonin. Calcitonin on the other hand also aids in regulating the body’s usage of calcium.
One form of tumor marker is calcitonin. In reaction to the presence of cancer in the body, normal or cancerous cells produce some chemicals known as tumor markers.
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complete the statements about the nature of scientific knowledge. among the different types of scientific knowledge, are likely to be modified or discarded most frequently. long ago, in the 1600s, scientists discarded the phlogiston theory because .
Among the different types of scientific knowledge, are likely to be modified or discarded most frequently. In the 1600s, scientists discarded the phlogiston theory because new evidence didn’t support it.
Phlogiston Theory
The phlogiston theory is a defunct scientific idea that proposed the existence of phlogiston, a fire-like element stored within combustible bodies and released after combustion. The name is derived from Ancient Greek. Johann Joachim Becher first introduced the notion in 1667, and Georg Ernst Stahl later formalised it. Phlogiston theory sought to explain chemical processes like combustion and rusting, which are now referred to as oxidation. It was challenged by the resulting weight gain, and it was abandoned before the end of the 18th century as a result of experiments by Antoine Lavoisier and others. Phlogiston theory led to tests, which resulted in the discovery of oxygen.
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during exercise, sensory receptors detect changes in oxygen and carbon dioxide levels in the blood. this information is then sent to the brain's medul
Exercise is important for the body to function properly.
What is Exercise ?Exercise is a bodily activity that improves or maintains physical fitness as well as general health and wellness.
It is done for a variety of objectives, such to support growth and enhance strength, build muscles and the cardiovascular system, refine athletic abilities, lose or maintain weight, improve health, or just for fun. Many people like to work out outside where they may interact, gather in groups, and enhance their physical and mental health.
The amount of recommended exercise for health benefits depends on the objective, the type of activity, and the person's age. Exercise is healthy, no matter how little you do.
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Following is a cost benefit analysis regarding the removal of arsenic (a poison) in water. Consider the costs and benefits , choose a side , and explain why you chose the side that you did . Costs: this requires a vast array treatment technology with detailed specifications it will cost companies $60-700 million dollars to implement the changes. The companies will raise the price of their product drastically to counteract their expenses , making everyday items more expensive for you. Benefits : millions of dollars will be saved on potential health problems. Associated bladder and lung cancer instances will drop. This will lower the environmental impact of arsenic on the ecosystem .
The biggest harm to human health from arsenic comes from contaminated water used for drinking, food preparation, and irrigation of food crops.
It cause cancer and skin sores when consumed over an extended period of time. Diabetes and cardiovascular disease have also been linked to it. Exposure during pregnancy and in the early years of life has been associated to impaired cognitive development and an increase in the mortality of young adults.The most crucial measure in the affected communities is to provide a safe water supply in order to stop future arsenic exposure.Replace supplies with high levels of arsenic, such as groundwater, with sources with low levels that are also safe for microorganisms, like rainwater and treated surface water.Install centralized or household methods for removing arsenic, and make sure the extracted arsenic is disposed of properly. Technologies for removing arsenic include membrane processes, oxidation, coagulation-precipitation, absorption, and ion exchange. The key to successful interventions is community involvement and education. Avoiding drinking arsenic-contaminated water is the greatest strategy to prevent arsenic poisoning. Instead of attempting to remove arsenic from water for community water supplies, it would be feasible and more cost-effective to transfer to a source of water that is lower in arsenic.Learn more about Arsenic here:
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