Question

Below is an image of molecules moving through a membrane. Which statement below best identifies this form of cellular transport? Responses A Facilitated diffusion, because energy is not being used as a channel protein allows molecules to move with the concentration gradient.Facilitated diffusion, because energy is not being used as a channel protein allows molecules to move with the concentration gradient. B Active transport, because energy is being used to move molecules against the concentration gradient.Active transport, because energy is being used to move molecules against the concentration gradient. C Osmosis, because energy is not being used to move water molecules with the concentration gradient.Osmosis, because energy is not being used to move water molecules with the concentration gradient. D Endocytosis, because a vesicle is being formed to bring molecules from outside the cell into the cell.

Answer 1

Based on your description of molecules moving through a membrane and the hypotheses provided, the best identification of this form of cellular transport depends on the specifics of the scenario.

• A describes Facilitated Diffusion, which is accurate if channel proteins are involved and molecules are moving down their concentration gradient without energy use.
• B refers to Active Transport, which is correct only if energy is used to move molecules against their concentration gradient.
• C describes Osmosis, which specifically pertains to the movement of water molecules across a membrane, again without energy use and along the concentration gradient.
• D references Endocytosis, which involves the formation of vesicles but is different from transport through channels.

If the image shows molecules (not specifically water) moving through a channel protein without energy use, then A (Facilitated Diffusion) would be the best choice. If it's specifically about water and there's no energy use, then C (Osmosis) could be the best choice. If energy is involved, then B (Active Transport) is appropriate.

Please refer to the specific content of the image to make the best determination.