AP Bio 2.10

Question 1

What’s the use of a cells plasma membrane?

Answer 1

It allows for the cell to maintain a different internal environment than its external environment

Question 2

What is compartmentalization?

Answer 2

It’s the division of something into sections or categories (in our case, external and internal environments of cells).

Question 3

What helps compartmentalization in bigger cells?

Answer 3

Additional membranes and membrane bound organelles that help in that regard

Question 4

Membranes minimize…

Answer 4

competing interactions, such as ones that occur as a result of 2 biological processes occuring simulataneously which can result in speeding up, or slowing down a reaction. A lysosomes enzymes require an acidic environment different than the one in the cytoplasm, and a membrane facilitates the existence of the environment requires for the enzyme

Question 5

What does membrane folding do?

Answer 5

It maximizes surface area for metabollic reactions to occur

Mitochondria for instance, mazimizing the effeciency of

ATP produciton as well as in the thylakoids of chloroplasts