객관식
Select the correct statement about osmosis.
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6. The Membrane
Osmosis
객관식
The movement of molecules across the capillary wall due to differences in hydrostatic pressure is called:
A
Filtration
B
Active transport
C
Diffusion
D
Osmosis
검증된 단계별 안내1
Step 1: Begin by understanding the concept of hydrostatic pressure. Hydrostatic pressure is the force exerted by a fluid due to its weight, and it plays a key role in the movement of molecules across capillary walls.
Step 2: Review the definition of filtration. Filtration is the process by which molecules move across a membrane or barrier due to pressure differences, specifically hydrostatic pressure. This is commonly observed in capillaries where blood pressure forces water and solutes out of the blood.
Step 3: Compare filtration with other processes listed in the options: Active transport involves the movement of molecules against their concentration gradient using energy (ATP); Diffusion is the passive movement of molecules from an area of high concentration to low concentration; Osmosis is the diffusion of water across a semipermeable membrane.
Step 4: Identify the key characteristic of the process described in the problem: the movement of molecules due to hydrostatic pressure. This matches the definition of filtration, as it is driven by pressure differences rather than concentration gradients or energy input.
Step 5: Conclude that the correct answer is 'Filtration' based on the alignment of the process described with the definition of filtration, distinguishing it from active transport, diffusion, and osmosis.
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