Answer: Membrane proteins act as receptors to molecules like hormones.
Explanation:
Membrane proteins are proteins that are closely associated with a cell membrane. On the cell membrane, they could act as receptors to molecules like hormones that need to be transported across the hydrophobic lipid bilayer.
A good example of membrane proteins is sodium channel, that acts as receptor to neurotransmitters.
Answer: The answer is smaller
Explanation:The illuminated part of the moon is getting bigger. To decrease gradually in size. The illuminated part of the moon is getting smaller.