Molecules A and B come in contact with the cell membrane of the same cell. Molecule A passes through the membrane readily, but m

Question

jolli1 [7]

2 years ago

7

Molecules A and B come in contact with the cell membrane of the same cell. Molecule A passes through the membrane readily, but m

olecule B does not. Which statement could describe molecules A and B?

Biology

1 answer:

aivan3 [116] · Answer 1 · 2022-06-14T00:59:47+03:00

Answer:

Molecule A is a simple sugar or amino acid, while molecule B is a starch or protein.

Explanation:

Molecule A, as a simple sugar or amino acid, consists of small molecules which can readily pass through the cell membrane, while Molecule B, as a starch or protein, consists of large molecules, thus, can't pass across the cell membrane.

This is the reason why the cell membrane is considered to be selectively permeable.