Question

Explain how the cell membrane is adapted to allow glucose molecules (shown in blue) to move into the cell.

Answer 1

Answer:

Since glucose is a large molecule, its diffusion across a membrane is difficultt. Hence, it diffuses across membranes through facilitated diffusion, down the concentration gradient. The carrier protein at the membrane binds to the glucose and alters its shape such that it can easily to be transported.

Answer 2

Answer:

Cell membrane are semi-permeable which means that some molecules can move through but the other molecules cannot. The cell requires glucose to form ATP, so it allows it to move through the cell membrane