8. The definition of diffusion is the movement of molecules across a membrane from an area of
high concentration to an area of low concentration. According to this definition, is the cell in
Model 1 undergoing diffusion? Explain.

Answers

Answer 1

Yes, According to this definition, the cell in Model 1 is undergoing diffusion from a higher concentration inside the cell to an area of low concentration outside the cell.

What happens when the cell undergoes diffusion?Water is diffusing through the cell from a greater concentration to a lower concentration. This would keep on until the water concentration on both sides of the membrane was equal (dynamic equilibrium is established).Due to their size, the sugar molecules are not diffusing. Through channel proteins, which run on ATP for energy, sugar molecules can enter cells.A special kind of diffusion takes place here which is known as osmosis.Osmosis is defined as the passage of water molecules through a semipermeable membrane from an area with a greater water concentration to one with a lower concentration of solution (i.e., lower concentration of water).

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Related Questions

The prefix that is added to the word autotroph to denote organisms which can use inorganic compounds in the environment to fix carbon dioxide with hydrogen atoms to make sugar is.

Answers

The prefix that is added to the word autotroph to denote organisms which can use inorganic compounds in the environment to fix carbon dioxide with hydrogen atoms to make sugar is 'litho'.

The term autotrophs refer to organisms that can make their own food. When we add the prefix 'litho' before autotrophs then the term becomes 'lithoautotrophs'.

In the field of science, lithoautotrophs can be described as a type of autotrophic microorganisms that get their required energy from inorganic substrates such as carbon dioxide. In this manner, they also fix carbon dioxide in the environment. The lithoautotrophs carry out such reactions that they take in carbon dioxide and release hydrogen. In this way, they fix carbon dioxide. Sugar, in the form of glucose, is produced also in this reaction which the lithoautotrophs use for carrying out other functions.

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what is a double membrane that surrounds the nucleus in the cell ??

Answers

Nuclear Membrane

The nuclear membrane is a double layer that encloses the cell's nucleus, where the chromosomes reside
It’s a double layer that encloses the cells nucleus where the chromosomes reside. Reside meaning like it’s places like for it to exist

If heavy exercise produces lots of co2 in the body, will the blood become more acid or more basic?.

Answers

If heavy exercise produces lots of co2 in the body, will the blood become more so they breathe faster to prevent the blood from becoming too acidic.

The two main organs that control the pH of the blood are the kidneys and the lungs, frequently both at once. The cells of the body include numerous chemical buffering systems. Through the act of exhaling carbon dioxide, which can occasionally result in changes within seconds, the lungs can quickly help adjust blood pH. For instance, when exercising, a person produces more carbon dioxide and so breathes more quickly to keep the blood from getting excessively acidic.By excreting acids in urine, the kidneys control the blood's pH. Additionally, they generate and control bicarbonate, which raises the pH of the blood. These changes could take hours or days, taking longer than those brought on by breathing.

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Guyss plss I need your help




Creating a planet: Fill up the data needed in your created planet.

My planet is called__________. It is located in the_________. The weather is_________ it would have________ kinds of organisms. The individual who live there are called _________.




The individual look like this (drawing)







The planet looks like this (drawing)

Answers

My planet is earth and it has many characteristics which make it suitable for living.

My planet is called EARTH. It is located in SPACE. The weather is SEASONAL so it would have MULTIPLE kinds of organisms. The individual who lives there is called HUMANS, ANIMALS, and PLANTS.

The earth is the third largest planet in the world occupying the mass land percentage filled with water mostly about 79% and the remaining part is composed of land and plants and animals and humans.

The earth is very suitable for living and having a life because there are many different seasons on the earth which favor a variety of organisms whether in form of plants or animals and also provide a large land area for the survival of the animals and plants and the earth is divided into 3 layers as core which is the innermost layer and mantle which is in between and crust which is the surface layer and its variety of mountains, volcanoes, oceans, canyons, plains, rivers, streams and plateaus and also it provides plenty of oxygen for breathing purposes and earth gravity is uniform and doesn't change very often so this planet also provides stability and there are 7 continents on the earth which are Asia, Austrailia, Europe, Antarctica, Africa, North America, and South America.

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Which are unicellular fungi?
question 17 options:

lichens

mold

puffballs

yeast

Answers

Answer:

Unicellular fungi are generally referred to as yeasts

Two pure-breeding mutant plants produce white flowers. When they are crossed, all of the progeny have wild-type purple flowers. What does this genetic complementation tell you?.

Answers

We can infer from the genetic complementarity that more than one gene is involved in phenotypic determination.

Offspring of two different organisms with homozygous recessive mutations exhibit wild-type traits due to genetic complementation. The interaction of two different strains of an organism with homozygous recessive mutations that produce the same trait but do not occur on the same (homologous) gene is referred to as complementation. The progeny display the wild-type phenotype when two organisms with different homozygous recessive mutations that result in the same mutant phenotype mate or cross.

Two pure-breeding mutant plants producing white flowers gave birth to progeny that were wild-type purple blossoms, proving that more than only the white genes are involved in the production of color phenotypes. That is, phenotypic variation is regulated by a recessive gene despite the fact that neither parent expresses this gene.

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Scientific Method Mini Project

Use steps 1,2 and 3 of the scientific method to work towards finding a solution for the observation below.

You observed the following event:

While sitting in the park on a quiet summer day, you noticed large flocks of birds flying away from the city.

Write your answers at the bottom of this page. Number each step and give it the appropriate title. Save it on your device, then upload it into TEAMS Assignment.

***Be sure that step 3, your possible solution, is only based on the information that was collected in step 2.

Answers

Answer:

The scientific method is something you probably use in your life more often than you realize, often without even thinking of it.

What is role of science in daily life?

Science has day to day contribution in our life. It is involved in breathing, exhaling, brushing of teeth, cooking, bathing etc. It developed the standard of livings.

Fasting is the very beneficial health practice followed from ancient times. In  India, it is also consider as religious practice from ancient times and they scientifically proved good for health.

I will choose fasting as it improve overall fitness, blood sugar management, improve immunity and detoxify the body. By doing so, my health get improved and my body get detoxify naturally.

Explanation:

Select the chemical in an energy blend that has a strong influence on the processing of energy nutrients

Answers

Carbohydrates are a chemical in an energy mix that has a strong influence on energy nutrient processing

What are Energy Nutrients?

Its main function is to provide energy to cells. The food groups with this type of nutrients are: carbohydrates and lipids. Carbohydrates: responsible for providing at least 50% of energy for our body. That's why it's so dangerous to practice a protein-based diet.

What are energy carbohydrates?

Carbohydrates are called carbohydrates or sugars. Carbohydrates have an energetic and structural function and are part of the formation of nucleic acids.Carbohydrates have energy function, structural function and participate in the formation of nucleic acids. Carbohydrates can be classified as monosaccharides, disaccharides or polysaccharides, with monosaccharides being the simplest carbohydrates. Glucose is the best-known monosaccharide.

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The cell structure immediately external to the cytoplasm of a cell is:_____.
a. the cell wall.
b. the cell membrane.
c. the outer membrane.
d. the periplasm.

Answers

Answer:

b. the cell membrane

Explanation:

i think it help u

Which statements did both Aristotle and Ptolemy assume? Select two options.

Answers

Aristotle and Ptolemy had both assumed each planet is attached to a single sphere, but geometers and astronomers could employ a number of such spheres to generate the observed motions of the planets

A thin glass bottle holds 25 ml of liquid and has a mass of 19 grams. Calculate the density.

Answers

Answer:

0.76 grams

Explanation:

Density = M/V

Density = 19/25

Density = 0.76 grams

0.76 grams is the answer so good luck

The cell membrane of an animal cell was damaged, preventing the cell from performing one of its functions. Which cell function would be lost, and how would this loss affect the cell?.

Answers

Answer: The cell would no longer be able to provide the first barrier around the cell wall, causing the cell wall to expand

Explanation:

People do not use water to adulterate oil, while water is commonly used to adulterate milk why​

Answers

Oil is hydrophobic by nature, but milk is an emulsion of water and minute fractions of many other substances, including lactose, micro lipids, and fats.

Any liquid that wants to combine with another one needs to have roughly equal amounts of attractive forces acting on its molecules. The attractive forces in water molecules are extremely strong due to the existence of polarity in the molecules.When oil and water are combined, the layers separate because of the long, neutral aliphatic chains in the structure of oils. As a result, there will be less attraction between the molecules of oil and water.Water-in-Oil vs. Oil-in-WaterEmulsions can be either water-in-oil or oil-in-water. Technically, to create water-in-oil emulsions as opposed to oil-in-water emulsions, one phase (referred to as the dispersed phase) is blended with the other (the continuous phase). To put it another way, one liquid acts as a kind of base into which another liquid is added. Oil is the dispersed phase that is spread into the continuous phase, water, when an emulsion is "oil-in-water." Milk is an illustration of an oil-in-water emulsion.A water-in-oil emulsion reverses the roles. E.g. butter. The type of emulsifiers used in milk retain all fats and lipids dispersed as nanoparticles in the aqueous medium, making milk easily miscible with water.

Hence, water can be used to adulterate milk but not oil.

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Proteins are synthesized at the ribosome and are often modified en route to their destination. How are these modified proteins most likely transported within a compartmentalized eukaryotic cell?.

Answers

Answer: rough-endoplasmic reticulum.

Explanation: rough endoplasmic reticulum are long thread like networks or channels transport protein within eukaryotic cell.

The body performs many processes that depend upon energy and could not occur without a supply of atp. How does the energy from atp power the cellular reactions?.

Answers

The body performs many processes that depend upon energy and could not occur without a supply of ATP. ATP powers cellular reactions by y transferring a phosphate group to another molecule in a process known as phosphorylation.

ATP also known as adenosine triphosphate is a molecule that is found in the cells of living organisms. ATP releases energy to start the different cellular processes. It itself stores energy from the breakdown of food.

It does not exactly store the energy but acts as a source of transport to deliver energy where it is required within the cell. It also provides energy energy releasing reactions but need a little energy to initiate.

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how is the energy stored in polysaccharides mobilised?

Answers

Plants store carbohydrates in long polysaccharides chains called starch, while animals store carbohydrates as the molecule glycogen. These large polysaccharides contain many chemical bonds and therefore store a lot of chemical energy.

Since these large polysaccharides have many chemical bonds, they can store a lot of chemical energy. Whenever these compounds are decomposed all through metabolic activities, the energy in the chemical bonds is released and can be used by cells.

What is a polysaccharide?

Polysaccharides are important types of biomolecules. They are long chains of carbohydrate molecules made up of many smaller monosaccharides.

Many polysaccharides are used by organisms to store energy. While energy-producing enzymes only work on monosaccharides stored in polysaccharides, polysaccharides generally fold together and they may contain many monosaccharides in a dense area.

The high energy carbon-hydrogen covalent bonds between the monomers in a polysaccharide store the energy.

The breaking of these bonds is what causes the energy used to generate ATP to be released. The higher the energy content of the polysaccharide, the more of these bonds there are.

Thus, this way, the energy stored in polysaccharides is mobilized.

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Based on your understanding of endosymbiosis and evolution of eukaryotes, would you expect any photosynthesis bacteria to share the same pigments as charophytes and plants?

Answers

Based on endosymbiosis and evolution of eukaryotes, it is possible for any photosynthesis bacteria to share the same pigments as charophytes and plants.

What is Photosynthesis?

This is defined as the process in which green plants manufacture their food in the presence of sunlight. This is performed by plants through their pigments which help to trap solar energy which is needed for the reactions.

There is the endosymbiotic origin of plastids which was from cyanobacteria therefore meaning that they have the same ancestors and was pivotal in the evolution of eukaryotes. This therefore denotes that they share similar features.

This is therefore the reason why it is possible for photosynthesis bacteria to share the same pigments as charophytes and plants.

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A 22-year-old presents with chronic bronchitis. tests reveal closure of the airway during expiration. this condition is most likely caused by _________.

Answers

A 22-year-old female presents with chronic bronchitis. Tests reveal closure of the airway during expiration. While planning care, a nurse recalls this condition is most likely caused by thick mucus produced by hypertrophied glands.

Chronic Bronchitis- Inflammatory response (swelling) as well as irritation of the bronchial passages characterize chronic bronchitis. These tubes serve as the airways that transport air from and into the lungs' air sacs. Mucus accumulates as a result of the tubes being irritated.

3.6% of persons aged 18 and over, or 9.0 million adults, had chronic bronchitis in 2018.

An inflammatory mononuclear cell infiltration inside the airway wall as well as a neutrophil influx into the airway lumen are two features of chronic bronchitis' pathogenesis.

The given question is incomplete, find below the complete question,

Q. A 22-year-old female presents with chronic bronchitis. Tests reveal closure of the airway during expiration. While planning care, a nurse recalls this condition is most likely caused by:

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Which taxonomic domain includes multicellular photosynthetic organisms? see concept 1.2 (page)

Answers

Eukarya taxonomic domain includes multicellular photosynthetic organisms.

Multicellular organisms classified as Eukarya include the kingdom Plantae and several types of algae, which can manufacture their own sustenance when exposed to light. Eukarya include protists, which are single-celled organisms like microalgae, as well as well-known plants, animals, and fungi. Their cells have a membrane-based internal structure, and the DNA is maintained in a nucleus.

All living things fall within the domain super kingdom category in the current classification system. Three major categories make up the domain. These are:

1. Archaea

Prokaryotes are classified as archaea, although they differ from bacteria in that their plasma membranes contain several types of lipids. The cell wall of archaea contains many forms of RNA but lacks peptidoglycan.

2. Microbes

It also includes single-cell prokaryotes, however, they differ from archaea in that they have different cell walls, RNA, and plasma membrane lipids.

3. Eukarya

It includes all monocellular and multicellular eukaryotes.

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how can cells benefit from diffusion

Answers

Answer: Cells depend on diffusion to get the nutrients they need to develop and obtain energy as well as to rid themselves of waste materials.

Hope this helped! :)

When using dialysis bags to study osmosis in this lab whether or osmosis occurred is determined by measuring the.

Answers

Osmosis can be measured by osmotic strength, concentration or pressure.

What element impacts osmosis within aWhat cell?

Concentration gradient: The concentration gradient affects the rate of osmosis. The faster osmosis takes place in a solvent, the lower the solute concentration in that solvent must be. Darkness and light are other osmosis-related elements; the more light there is, the more quickly osmosis occurs.

Osmosisisis  is determined by concentration of the solute . Water diffuses into the area of higher concentrations from the area of lower concentrations.

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What period and group is water located in?

Answers

Since water does not contain a single element, it is not listed on the periodic table.

A kind of substance known as an element is one that cannot be reduced chemically into smaller particles. Hydrogen and oxygen make up water. Because it is composed of molecules, water is a compound. Water atoms don't actually exist. The ratio of two hydrogen atoms to one oxygen atom determines the composition of water molecules. The chemical elements are arranged in the periodic chart according to their atomic numbers, starting with hydrogen and moving up to oganesson, which has the highest atomic number.

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The area of the brain that processes visual, auditory, and touch stimuli and keeps us in a state of mental alertness is the?

Answers

The authority cortex is what I think it’s called is the main area for all visual and touch stimuli

A biologist discovers a new signal transduction pathway in fruit flies that involves a protein kinase cascade. As part of a grant proposal he writes to obtain funding for further work on this pathway, the biologist proposes research to look for phosphatase enzymes. Why?.

Answers

Phosphatases are regulators of signal transduction pathways.

The biologist must find the enzymes that control the signaling cascade by removing phosphate groups from molecules. Protein phosphatases can act as both immediate and delayed signal transduction regulators, attenuating or boosting signaling.

Protein kinases and phosphatases are enzymes that catalyze the transfer of phosphate from one substrate to another. A protein kinase catalyzes the -phosphate transfer from ATP (or GTP) to its protein substrates, whereas a protein phosphatase catalyzes the phosphate transfer from a phosphoprotein to a water molecule. Despite the fact that both families of enzymes are phosphotransferases, they catalyze opposite processes to modify the structures and activities of numerous prokaryotic cellular proteins and eukaryotic cells.

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Please help!
How could patenting a gene affect the progress of science?
How could patenting a gene affect society?
What is gene ownership? When is gene ownership ethical?

Answers

Patenting a gene may affect scientific progress by hampering research investigations and they also affect society, while the expression of gene ownership makes reference to this patent process, which has been considered unethical in many different countries.

What does DNA ownership mean?

The term 'DNA ownership ' can be defined as the process of patenting a gene for commercial and/or research purposes, which is considered unethical because it hampers the investigations of such nucleotide sequences.

In conclusion, patenting a gene may affect scientific progress by hampering research investigations and they also affect society, while the expression of gene ownership makes reference to this patent process, which has been considered unethical in many different countries.

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in one paragraph, how would you summarize the major causes, risk, and effects of the zika virus to someone who has never heard about the condition?

Answers

The mosquito that transmits the Zika virus is common all throughout the world.

Mosquito bites generally spread the Zika virus to people in tropical and subtropical areas of the world. Most Zika virus sufferers show no symptoms at all. Some patients frequently have a mild temperature, rash, and painful muscles. The Zika virus may, in extremely rare instances, cause problems with the brain or neurological system, such as Guillain-Barre syndrome, even in people who never show any symptoms of infection. Other names for the Zika virus infection include Zika, Zika fever, and Zika virus illness.

Symptoms Up to 4 out of 5 people who have the Zika virus exhibit no symptoms at all. When symptoms do materialize, they usually begin two to fourteen days after a person.

Zika virus symptoms most frequently manifest as:

Rash of a mild feverEspecially in the hands or feet, joint discomfortRed eye color (conjunctivitis)

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Describe the change in the intensity of insolation in the Northern Hemisphere as the earth moves in its orbit from position D to position B.

Answers

As the earth moves in its orbit from position D to position B, here we see that the Southern Hemisphere receive much more light than the Northern Hemisphere which in effect means that the Southern Hemisphere has more hours of sunlight per day.

What is the Insolation?

Insolation is the amount of solar radiation that is received by a planet.

From the diagram we have, it show the earth and sun in different positions during the different times of the day and the position of the earth each year.

The diagram has each position representing one season. The northern hemisphere will receive the most sunlight when the earth is tiled more towards the north such as the diagram on the left-hand side will get maximum insolation due it the vertical rays of the sun.

Because of the fact that we have 12 hours of the day and 12 hours of night time. Hence the earth rotating on it axis will have sunlight for most hours per day.

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a humming bird may need to consume up to 50%of its body its weight in sugar each day

Answers

Answer:

Energy conversions are common in nature. Much of the energy from the breakdown of the hummingbird body weight is released as heat energy back into the hummingbird's environment.

According to the laws of thermodynamics, energy is neither created nor destroyed but is converted from one form to another. Living things take in food to release energy to carry out their daily activities.

Sometimes, energy is obtained from the breakdown of body fat. In either case, much of this energy is released back into the environment as heat energy.

Explanation:

Answer:

Energy conversions are common in nature. Much of the energy from the breakdown of the hummingbird body weight is released as heat energy back into the hummingbird's environment.

According to the laws of thermodynamics, energy is neither created nor destroyed but is converted from one form to another. Living things take in food to release energy to carry out their daily activities.

Sometimes, energy is obtained from the breakdown of body fat. In either case, much of this energy is released back into the environment as heat energy.

Explanation:

What special structures did early cells develop to transfer energy and matter with their environment?​

Answers

Mitochondria and chloroplasts

A good research or experiment in science must be reproducible, otherwise, the outcome of such an experiment might become inadmissible within the scientific community. It is a core principle of the scientific method that similar results should be obtained when an experiment or observational study conducted in one place is repeated in another place with the same procedure. Hence, an experiment must be reproducible in science in order for the outcome of such an experiment to be part of the general scientific knowledge. tant to our society? Explain your answer.

Answers

Answer: Reproducibility is essential to science because it allows for more thorough research while replicability confirms our results. Many studies and experiments exist, leading to many different variables, unknowns, and things out of your control or that you cannot guarantee.

Explanation:

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Henry is up for retirement after 35 long years at his pharmacy. before retiring, he would like to know how much he would receive each month from social security if he were to retire. during his 35 years, henry averaged an annual salary of $45,620. assuming he would recieve 42% of his annual average each year, how much can henry expect to receive from social security on a monthly basis? a. $1,596.70 b. $1,916.04 c. $15,967.00 d. $19,160.40 I NEED HELP MY DUDESWhich factor did NOT contribute to the decline of the Byzantine Empire?1. the plague2. poor finances3. new weapon technology4. Greek fire5. invasion by Muslim forces what particular phenomenon is described in the filipino folktale FInd the equation of the line that passes through (1,3) and is perpendicular to y=1-2x. Leave your answer in the form ax+by=c Where a,b and c are integers. in biology lab, you are tasked with measuring the temperature of a small lizard, as it is moved from containers with different temperatures, light, and humidity. these elements require monitoring since lizards cannot self-generate heat. therefore, lizards are an example of a(n) assume that kubin company produced 17,000 units and expects to sell 16,740 of them. if a new customer unexpectedly emerges and expresses interest in buying the 260 extra units that have been produced by the company and that would otherwise remain unsold, what incremental selling and administrative cost per unit is incurred to sell these units to the customer? S = 5r^2t (solve for the formula of t)please i need answers asap! 1. Which stem-and-leaf plot matches this data?44, 68, 57, 52, 48, 48, 68, 58, 46, 78, 65, 57, 46, 59, 53, 76, 79, 74, 55, 66A4567C45671113568905668025591257789334915678922468OA plot AOB plot BO c. plot COD plot DB4 2379955667D4567623733450012233746688235778956884689 these questions are based on the book "Night" please help! giving the most points i can plus brainliest evaluate each expression for d=3 Find the two solutions to the equation below.(3x 4) (x + 5) = 0 Aneesha travels at a rate of 50 miles per hour. Morris is traveling 3 feet per second less than Aneesha. Which is the most accurate rate of speed Morris is traveling? What is the name of a substance that contains a useful element which can be extracted from it? How does the caption develop the central idea?It shows that most women choose not to protest wearing veils.It demonstrates the differing opinions among women in Iranian society.It illustrates that there is strong anti-religious sentiment in Iran.It explains why the narrators mother is opposed to wearing a veil. Answer letter B please 6(6 2) 9 in order of operation Complete the following word equations and indicate the state of matter for each reactant and product.copper sulfate + ammonium hydroxide zinc + copper sulfate magnesium + sulfuric acid hydrogen +copper oxide + sulfuric acid water + When a coin is tossed in the air, it travels upward, gradually slows down, momentarily reaches zero speed, then moves backdownward with increasing speed. Which statement best explains this change in the coin's motion?a.The force of gravity causes the coin to change its velocity.b.The coin's inertia decreases on the way up and increases on the way down.c.The action-reaction force pair of gravity and the applied force cancel each other.d.The coin remains in its state of upward motion until the force. please read and help me I WILL GIVE BRAINLIEST the three angle bisectors of a triangle meet a point called the _____