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WINSTONCH [101]
4 years ago
7

What facilitates a cells ability to exchange materials between the cell and its environment?

Biology
1 answer:
aalyn [17]4 years ago
8 0

Answer:

Differentially permeable membrane.

Explanation:

Differentially permeable membrane is defined as the membrane that allows the passages of materials between the cell, and it's environment. It's allow the movement of some particles such as small molecules not large molecules like solutes.

It is also known as semipermeable membrane. It is also important for maintaining turgidity, and help to retain the ability to absorb solutes.

You might be interested in
How is gene theory related to the theory of evolution?
pashok25 [27]
Heredity is the process of passing of traits from one generation to the next generation. Now, this process would not lead to any interesting results (and in turn, the astonishing variety of life on earth), if this process was 100% accurate or faithful. So, even though traits are transferred from parents to their off-springs, the traits are usually marginally altered.
This gives rise to off-springs who are like their parents but with very minor changes. These changes could either be a) beneficial b) harmful (deleterious) or c) neutral.
Harmful changes cause the organism to perish before it can pass on these changes to the next generation. Sometimes a trait that existed in the earlier might become deleterious due to a change in the environment and thus, undergo the process of elimination from the population.
Beneficial changes help the organism to adapt better to its surroundings and live longer and have more off-springs such that these changes are spread to more and more organisms in the population and are eventually get fixed.

A series of such changes in a subsection of a population eventually lead to a new species which is nothing like the older generation. This process of “fixing” or beneficial changes and removal of deleterious traits from a population is called evolution.

Interestingly, the changes that seem the most inconsequential, the neutral changes, are responsible for the bulk of evolution. Neutral changes along with geographical isolation lead to a process called genetic drift, which is considered by many to be the strongest driving force of evolution.
1.8K viewsView upvotes

7




Related Questions (More Answers Below)
3 0
3 years ago
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What is a species of bacteria that causes disease?
coldgirl [10]
Cancer cells and Corona virus
6 0
3 years ago
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The abundance of birds and other predators of borer beetles depends on how much natural forest is left within and around the cof
NeX [460]
The graph below presents the number of borer beetles per hectare in relation to the size of the forest cover.
As we can see, the number of borer beetles increases with the percentage of forest cover. At 15% of the forest cover the number of beetles is around 4 per hectare and at 30% it would be around 11, showing a 275% increase in number.

4 0
3 years ago
A gene has 2 alleles, R & B, List the possible genotypes? I also need help with questions 5, 6, 7 and 8 please help! Pls loo
irakobra [83]

Answer:

5.) The possible genotypes should be: RR RB BB ( if the could for the same proteins)

6.) Frequency of R: 0.5

7.)Frequency of R: 0.5

8.)Frequency of R: 0.375

Explanation:

5.) If R and B code for the different forms of the same protein then they are only a few possible out comes

6.) First calculate the total alleles in population

allele R= 40

Allele B=40

total allele = R+B= 40+40

=80

Now to find allele R frequency is:

(Total R alleles) / (Total allele in pop)

40/80=

0.5

7.)Calculate the total alleles

Alleles from for R

RR= 10

R=10x 2= 20

Multiply the value by 2 because there are 2 R alleles present in

RB=20

R=20

Number doesn't change there is only 1 R allele

Total R=20+20

=40

Alleles For B

BB=10

B=10×2

=20

Same thing here, two B alleles together so multiple by 2

RB=20

B=20

Total B= 20+20

=40

Total alleles in pop add

40+40

=80

Frequency of R

Total of R/Total Alleles

=40/80

=0.5

8.)Repeat the same thing in 7 but use different numbers

RR=10

R=10x2

=20

RB=10

R=10

Total R= 20+10

=30

5 0
3 years ago
What did the different colored bands signify in each solvent for part 1 of the paper chromatography experiment? what pigments ca
djyliett [7]
Different colored bands in each solvent signify the different materials that are found in the substance that is been analysed.
The green band in the solvent represent the green chlorophyll which are found in leaves. Chlorophyll is the substance which gives the plants the capacity to trap energy from the sun for production of food.
4 0
4 years ago
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