All categories

3 years ago

What do you think selectively permeable means?

Biology

2 answers:

emmainna [20.7K]3 years ago

5 0

B. The membrane lets certain substances move across it freely, while others must move through a “gate”.

enot [183]3 years ago

3 0

Answer:

B. The membrane lets certain substances move across it freely, while others must move through a “gate”.

Explanation:

Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell. This is important for the cell to maintain its internal order irrespective of the changes to the environment. For example, water, ions, glucose and carbon dioxide may need to be imported or exported from the cell depending on its metabolic activity. Similarly, signaling molecules may need to enter the cell and proteins may need to be released into the extracellular matrix. The presence of a selectively permeable membrane allows the cell to exercise control over the quantum, timing and rate of movement of these molecules.

You might be interested in

Is there any type of ecological relationship between wolf and moose populations on Isle Royale? If not, explain why not. If so,

Cerrena [4.2K]

The Prey-Predator relationship is the type of ecological relationship between wolf and moose populations on Isle Royale.

<h3>What do you mean by Ecological relationship?</h3>

The Ecological relationship may be defined as the interaction between the members of one species with respect to the members of the other in response to food, shelter, and space.

Moose are herbivores and the prey of wolfs. It is clearly seen in the graph that when the population of wolves increases, the number of moose decreases. It states that wolfs feed on moose.

Therefore, the Prey-Predator relationship is the type of ecological relationship between wolf and moose populations on Isle Royale.

To learn more about Ecological relationships, refer to the link:

brainly.com/question/2240608

#SPJ2

4 0

2 years ago

Read 2 more answers

Which of these is not one of rusbult and colleagues' (1986, 1987, 1998) three ways of coping with a failing relationship?

Sindrei [870]

Pragma is not one of rusbult and colleagues' (1986, 1987, 1998) three ways of coping with a failing relationship.
Pragma is a pragmatic, practical, mutually beneficial relationship. The EVLN framework was developed by rustbult and her colleagues for personal love and marriage relationships.

8 0

3 years ago

If a fishy has 2 babies then the fishy dies how much babies are there?

Fed [463]

Answer:

Explanation:

itseeieieiejeieiejris

7 0

3 years ago

Read 2 more answers

All of the following statements are true about heritability EXCEPT: Group of answer choices it is the genetic variance for a tra

Lerok [7]

Answer:

I am a in

Explanation:

I apologize I don't know the answer

3 0

2 years ago

The nucleus has a system of _____ embedded within its outer membrane which allows communication between the nucleus interior and

Bumek [7]

Answer:

pores

Explanation:

The nucleus consists of "nuclear pores" on its outer membrane. Each of these are surrounded by nuclear pore complex. It allows the pore to regulate the movement of molecules between the nucleus and the cytoplasm. It allows small particles to pass through such as ribosomal proteins. It prevents most large particles (except for histone) from passing through; thus, it is selective in nature. This function of the pores clearly shows that it allows communication to occur between the nucleus interior and the cytoplasm.

5 0

3 years ago