Question

nfhs 25-26 biology cr sem a
cell homeostasis
which movement of particles would be most affected by a disorder that causes damage to carrier proteins?
active transport
passive transport
diffusion
osmosis

Explanation:

To determine the answer, we analyze each option:

• Active transport: Requires carrier proteins (e.g., pumps) to move substances against the concentration gradient. Damage to carrier proteins would directly disrupt this process.
• Passive transport: Includes diffusion (simple or facilitated) and osmosis. Simple diffusion and osmosis do not require carrier proteins; facilitated diffusion does, but active transport relies more heavily on functional carrier proteins for energy - dependent movement.
• Diffusion: Simple diffusion is the movement of particles from high to low concentration without a carrier. Facilitated diffusion uses carriers, but active transport is more reliant on carrier proteins for its energy - consuming, against - gradient movement.
• Osmosis: Is the diffusion of water, and simple osmosis (through aquaporins or the lipid bilayer) does not depend on the same carrier proteins as active transport.

Since active transport is highly dependent on carrier proteins for moving substances against the concentration gradient, a disorder damaging carrier proteins would most affect active transport.

Answer:

active transport