Which best describes the permeability of a membrane?
O A. The total thickness of the membrane
B. The flexibility of the membrane
C. The number of molecules in the membrane
D. The ability to allow materials to cross a membrane

Answers

Answer 1

Answer:

D

Explanation:

D. is correct because the membrane works like a security guard and only allows certain materails to cross the membrane. The definition of permeability is the state or quality that allows something to pass through.

Answer 2

Permeability is a standard of easy motion of liquid and gases through a membrane or material. They allow the transportation and exchange of gases in a cell.

The statement that best describes the permeability of a membrane is:

Option D. The ability to allow materials to cross a membrane.

This can be explained as:

Permeability is a physical property of membranes and substances that allows the other molecules to move through them.

It acts as a barrier from substances entering and exiting the cell or membrane and maintains the balance in a system.

Therefore, permeability is the allowance of materials across the membrane.

To learn more about permeability follow the link:

https://brainly.com/question/6640170


Related Questions

Help???????????????????????????????
???????

Answers

Answer:

the fish is the PREDATOR

Answer:

Prey

Explanation:

Using information from the diagram, state one reason why the movement in the third image represents active transport

Answers

Answer:

A protein or ion has passed through the "pump" or carrier proteins and move within the cell.

Nvm short and sweet ;)

Further info..

To move substances against a concentration or an electrochemical gradient, the cell must use energy. This energy is harvested from ATP that is generated through cellular metabolism. Active transport mechanisms, collectively called pumps or carrier proteins, work against electrochemical gradients. With the exception of ions, small substances constantly pass through plasma membranes. Active transport maintains concentrations of ions and other substances needed by living cells in the face of these passive changes. Much of a cell’s supply of metabolic energy may be spent maintaining these processes. Because active transport mechanisms depend on cellular metabolism for energy, they are sensitive to many metabolic poisons that interfere with the supply of ATP.

А
gene is a segment of DNA on a chromosome. How are genes related to the proteins made by a cell?

Answers

Answer:

The DNA in genes is transcribed into RNA and translated into proteins

Explanation:

The sequence of DNA in a gene is transcribed into a messenger RNA (mRNA). This sequence of this mRNA is translated into a sequence of amino acids that form a protein.

The sequence of DNA in a gene directly affects the amino acids, and therefore the structure and function of, a protein.

Answer:

The structure of the genes in a cell determines the structure of the proteins made by the cell.

Explanation:

Geese fly in a v-like formation when migrating. Which statement is evidence that supports advantages of this group behavior? (4 points)
A) Birds can work together to find food and shelter.
B) Birds conserve energy and reduce wind resistance.
C) Birds need to move faster to avoid being seen by predators.
D) Birds can compete for mates when they fly together.

Answers

Answer:

B

Have a nice day :D

Birds conserve energy and reduce wind resistance when they fly in V-like formation.

Why Geese fly in a V-like formation?

Flying in a v-like formation allows geese to conserve energy and reduce wind resistance as they migrate. The lead goose breaks the wind for the rest of the group, which allows the other geese to fly more efficiently and use less energy. This group behavior helps the geese to cover long distances during migration, as they are able to fly for longer periods of time without tiring.

The other options do not provide evidence of advantages of this group behavior. Option A) may be true, but it is not specific to flying in a v-like formation. Option C) is not necessarily related to group behavior, as geese may need to move faster for other reasons. Option D) is not relevant to the topic of migration.

Learn more about migration, here:

https://brainly.com/question/28827966

#SPJ2

HEELLPPP QUICKKK PLSSSS
10 points

Answers

Answer:

a

I THINK SORRY IF WRONG NOT 100% SURE

Explanation:

it is a because the other guy said so

what are the 5 units of life
i already have
reproduction,has cells,uses energy, and intreacts with the environment, WHAT IS THE LAST OOOONNNNEEEE

Answers

Evolution, all living things evolve

Relationship between Photosynthesis and Cellular Respiration Video and
POSSIBLE POINTS: 20
What is the relationship between photosynthesis and cellular respiration?
O
The reactants of cellular respiration are the products of photosynthesis and the reactants of photosynthesis are the products of cellular
respiration
The reactants of cellular respiration and photosynthesis are the same but their products are different
O Cellular respiration is one of the steps in the process of photosynthesis
ο ο
O Photosynthesis is one of the steps in the process of cellular respiration.
1 2 3 4 5
Rev

Answers

The reactants of cellular respiration are the products of photosynthesis, while the reactants of photosynthesis are the products of cellular respiration.

How are chloroplasts like mitochondria?
Group of answer choices

They both contain DNA.

They are both found in animal cells.

They look alike.

They can both use energy from sunlight.

Answers

Answer: Chloroplasts, like mitochondria, produce energy for plant cells. Both mitochondria and chloroplasts have their own circular DNA and can function independently of the eukaryotic host cell. Hope this helps! I don't like giving direct answers I feel you should have a chance to learn.

Explanation:

What antibodies are present if a person
has B+ blood?

Answers

Answer:

B antigens with anti-A antibodies

Explanation:

A blood type classifies blood, based on the presence and absence of antibodies and antigens present on the surface of red blood cells.

Group B+ blood has B antigens and anti-A antibodies. Group A+ blood has A antigens and anti-B antibodies.

Which of the following is the best strategy to control wheat rust?
A. Fungicides to treat affected crops and planting rust-resistant varieties
B. Insulation using green roofs to limit rust
C. Invasive insect species to attack rust
D. Citrus greening to prevent the spread of rust

Answers

The answer to the question is A

A mutation is _______. a). a mistake in the production of DNA, b). an error in the genetic code, c) a mistake that may cause a genetic disease, d) all of the above

Answers

Answer:

d)all of the above..........

The answer is D!!!!!!

How do limiting factors determine the carrying capacity of an ecosystem ?

Answers

Answer:

Limiting factors determine carrying capacity. The availability of abiotic factors (such as water, oxygen, and space) and biotic factors (such as food) dictates how many organisms can live in an ecosystem. Carrying capacity is also impacted by the availability of decomposers.

Explanation:

Carrying capacity is determined by limiting variables. Limiting factors can be divided into two categories: those that depend on the density and those that don't.

What are the limiting factors?

Limiting factors can be divided into two categories: those that depend on the density and those that don't. These names are accurate in their meanings.

No matter how big or little, expanding or contracting, the population is affected by density-independent causes. For instance, regardless of the density of any one population, a wildfire that burns through a dense forest in the Everglades has a significant effect on every population in the area.

The majority of density-independent limiting variables fall into the abiotic (nonliving) group, which includes wildfire. Hurricanes, pollution, and seasonal climate extremes are other density-independent variables.

Therefore, Carrying capacity is determined by limiting variables. Limiting factors can be divided into two categories: those that depend on the density and those that don't.

To learn more about carrying capacity, refer to the link:

https://brainly.com/question/6996113

#SPJ5

the five kingdoms of classification of organisms?

Answers

Answer:

Hope it helps...

Explanation:

The five-kingdom system of classification for living organisms, including the prokaryotic Monera and the eukaryotic Protista, Fungi, Plantae and Animalia is complicated by the discovery of archaebacteria.

Answer:

The five-kingdom system of classification for living organisms are prokaryotic Monera and the eukaryotic Protista, Fungi, Plantae, and Animalia is complicated by the discovery of archaebacteria.

what is an example of carbohydrates?

Answers

Answer:

Glucose

Explanation:

Glucose is an important carbohydrate. Other carbohydrates include starch, lactose, cellulose, and fructose.

1. Glucose
2.Galactose
3. Starch

Which example uses collaboration to gain further knowledge?


A) A group of scientists working together to summarize results from prior experiments.

B) A group of scientists meeting and sharing results to determine who gets the credit for discoveries.

C) A group of scientists copyrighting their results to ensure other scientists do not plagiarize their work.

D) A group of scientists getting together to share the results of their experiments with each other and find a solution to a given problem.

Answers

Answer:

i love rodrick heffley

Explanation:

Cytokinesis – division of the cytoplasm resulting in two identical d_______________ cells.

Answers

Answer: daughter

Explanation: Cytokinesis results in the division of cytoplasm in a parental cell, creating 2 identical daughter cells.

Hope this helps!

Cytokinesis, the division of the cytoplasm resulting in two identical daughter cells, is caused by the mitosis process, as here the two daughter cells get an equal amount of the genetic contents.

What is the significance of cytokinesis in mitosis?

It is very important in mitosis because it aids in the division of two cells from one cell during the cell division process and results in the formation of two genetically identical daughter cells; without cytokinesis, the chromosomes would remain in the same cell, resulting in mutation as multinucleated cells are formed in such a process.

Hence, cytokinesis, the division of the cytoplasm resulting in two identical daughter cells, is caused by the mitosis process, as here the two daughter cells get an equal amount of the genetic contents.

Learn more about the cytokinesis of mitosis here.

https://brainly.com/question/18477575

#SPJ2

SOMEONE SMART HELP MEP PLS!!!!!! Write a word equation - The reactants are sodium bicarbonate and calcium chloride. The products are sodium chloride, calcium carbonate, carbon dioxide, and water.

Answers

Answer:

answer below

Explanation:

sodium bicarbonate and calcium chloride react to form sodium chloride, calcium carbonate, carbon dioxide, and water.

What describes G and why they face the watery inside and outside of the cell

Answers

Answer:

Because they are hydrophilic

Explanation:

The cell membrane is made up of a phospholipid bilayer. The phospholipid bilayer is made up of an arrangement of phosphate heads, which are (attracted to water) hydrophilic, and fatty acid tails, which are hydrophobic. (repelled by water).

Because they are attracted to water, the phosphate heads face the outside of the cell, where the water is

The release of which substance is represented by the arrows?
1. Glucose
3. Carbon dioxide
2. Oxygen
4. DN

Answers

Answer:

Can you add a picture?

Explanation:

We don't know where the arrows are coming from.

We need a photo we don’t know where the arrows are

What is the density of an object that has a mass of 84g and a volume of 15 cm?

Answers

Answer:

5.6g/cm^3

Explanation:

density= mass÷volume

the answer is 5.6 g/cm

explanation: the formula for finding density using volume and mass is m/v (mass divided by volume)

a great way to remember this is to draw it out like a fraction and it looks like a heart broken horizontally. i hope this helps!

A golfer collected data on the distance a gold cart traveled in a straight line and plotted it on a graph

Answers

Answer:

linear graph

Explanation:

Do you know what an orgasim is?

Answers

Answer:

It is a living plant or animal, or a single celled orgasim...OOP organism. Just playing lol

Explanation:

What are the similarities between food webs and food chains?
Explain.thanks

Answers

Explanation:

food webs are what the animals eat in order while food chain is what animal eats what animal

what makes angiosperm more advance than gymnosperm​

Answers

Answer& Explanation:

Angiosperm is more advanced due to the mechanism of protection it has since developed as opposed to its predecessor, gymnosperm. Angiosperms could be deemed the inventors of animal-mediated pollination or dispersal, whereas gymnosperms mostly depend on wind-mediated pollination (which is far more of a gamble than animal mediated).

1) Angiosperms seeds are enclosed in fruits, which increases the chances of dispersal by either wind, water, or animals. Animals can eat the fruit and disperse the seeds via feces or by brushing the fruit off of their fur coats new areas of the terrain.

2)The development of flowers. Flowers are especially important because depending on the flower it can attract a set species of animals in order for pollination to occur. That species of animal could only focus on those few flowers and would allow the female part of the flower to receive pollen (produced by the male part of the flower) from all over the place. This theory is also applicable to animal mediated fruit dispersal.

Flowering plants mature more quickly than gymnosperms, and produce greater numbers of seeds. The woody tissues of angiosperms are also more complex and specialized. Their seeds are enclosed in a fruit for easy dispersal by wind, water, or animals.

I really need these answers

Answers

Answer:

Down There

Explanation:

1) The Bushmaster has the highest mortality rate.

2) The Southern United States Copperhead has the least mortality rate.

3) I can determine that the Bushmaster's venom works the fastest due to it being the one with most deaths produced. While the U.S. Copperhead's venom might work the least since most people survived its venom.

4) The Black-necked Cobra and the Puff Adder

5) 10 types of snakes.

Hope it helps!! :D

2. The Southern US Copperhead has the lowest mortality rate

In an example food chain, mice only eat plants, and then snakes eat the mice. These snakes are examples of consumers.​

Answers

Answer:

yes beacuse it cant produce food themselves they depend upon other for food

A doctor is examining a gland under a microscope. It has a duct. What type of gland is it?
endocrine

exocrine

membranous

Answers

The answer is exocrine

Answer:

exocrine

Explanation:

i got it right


describe the food chain plant& grasshopper snake _______

Answers

Answer:

plant-grasshopper-snake-Eagle

A professor researching sea stars off the coast of France has been offered a position a a Mexican university. Should the researcher assume that his pas!
experiments would produce the same results in the coastal regions of Mexico?
No because the experiments are no longer valid if they are disassembled
Yes because performing experiments under different conditions further validates the results
Yes because the same experiment should yield the same results everywhere in the world
No because the environmental conditions in Mexico will be different producing uncontrol anables

Answers

Answer:

It is the Last one

Explanation:

No because the environmental conditions in Mexico will be different producing uncontrol anables

Answer:

The Answer is D. No, because the environmental conditions in Mexico will be different, producing uncontrolled variables

Explanation:

he is traveling to another part of the earth on a different coast with different conditions. It would be much more different. Perhaps there are other species and everything. Some results could be similar but most of them wont.

Hope This Helps!

2. The overall average motion of particles based on temperature is the
(10 Points)
A.)Maxwell Boltzman
B.)Absolute zero
C.)caloric intake

Answers

Answer:

B.)Absolute zero

Explanation:

Your answer should be C.
Other Questions
The R.D. Wilson Company makes a soft drink dispensing machine that allows customers to get soft drinks from the machine in a cup with ice. When the machine is running properly, the average number of fluid ounces in the cup should be 14. Periodically the machines need to be tested to make sure that they have not gone out of adjustment. To do this, six cups are filled by the machine and a technician carefully measures the volume in each cup. In one such test, the following data were observed:_______.14.25 13.7 14.0214.13 13.99 14.0Based on these sample data,which of the following is true if the significance level is .05? A) No conclusion can be reached about the status of the machine based on a sample size of only six cups. B) The null hypothesis cannot be rejected since the test statistic is approximately t = .29,which is not in the rejection region. C) The null hypothesis can be rejected since the sample mean is greater than 14. D) The null can be rejected because the majority of the sample values exceed 14. On a certain Friday night, the local baseball stadium earned $867.50 in revenue from ticket sales on 310 tickets. Ticket prices are $3.00 for adults and $2.50 for children. How many adults attended the game on Friday? sally picked 6 and 2-thirds pounds of apples. She used 1-half of the apples she picked to make pies. Question How many pounds of apples did Sally use to make pies? Move numbers to the boxes to show the answer. On October 1, 2018 stokes company paid Eastport Reynolds $4800 for a 12 month lease, deferal why does the universe hate me? e-2=13 pls someone help me Anyone I Can Help With please help !!! the question is in the picture Yo can someone please help me. Graph the line y=3x+b if it is known that the graph goes through point:A(2, 4) Making Podcasts and Wikis Work for BusinessPodcasts and wikis are part of Web 2.0, which allows users of the web to create content. Prudent business use of Web 2.0 applications can help businesses build and maintain their reputations online. Understanding how to use Web 2.0 communication tools will be important when you are on the job.Businesses have embraced podcasting to broadcast (confidential/ legal/ repetitive?) information that doesnt require interaction. For example, some companies use podcasts to broadcast HR policies that can be accessed on demand. What function can companies improve by using wikis for collaboration?A. Communication with investors.B. Project management.C. Customer interaction.Consider the scenario:You work on the marketing team for a software development company. You have sales representatives in different locations around the globe. When a product update is released, your team holds teleconferences to demo new features. Due to time differences, these demos are difficult to schedule and usually require multiple demo sessions to accommodate different geographic regions. You want to streamline the new product demos and decide to recommend an electronic communication tool to help facilitate this. Which electronic communication tool would you recommend?A. A podcast.B. A wiki.C. An e-mail. what does paine think about the monarchy in england What is the density of a liquid with the same mass as in problem d, if it has a volume of 43.2 mL?(part d: A liquid has a volume of 62.7 mL and a density of 2.59 g/mL. What is its mass?) La muchacha se lava ____. a. el pelo c. las manos b. los dientes d. all of the above How does the structure of the mitochondria enable such an increase of energy to be produced? There are 8 dinner rolls in a package.How many packages will be needed to feed 100 people if each person has 2 dinner rolls? Enter the correct answer to complete the statement.They will need packages. A tennis ball with a speed of 11.5 m/s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 5.842 m/s. If the ball is in contact with the wall for 0.0129 s, what is the average acceleration of the ball while it is in contact with the wall? Take "toward the wall" to be the positive direction. Answer in units of m/s 2 A rectangular table measures 3 feet by 4 feet. Andres rotates the the table a quarter-turn clockwise. What is the length in feet of the shorter side of the table after the rotation? What happens to trees from one life zone to the next?a.All varieties of trees will increase as the altitude gets higher.b.A variety of trees will disappear as the altitude gets higher.c.Trees get larger as altitude increases.d.There is no difference in trees from one zone to another. Marcus believes that individual rights and property are the most important things the government must protect. Which party would he most likely join and why? - civics