12 Questions
Passive transport is the movement of substances:
Down a concentration gradient
Osmosis is a type of:
Diffusion
Which of the following factors does NOT influence the rate of diffusion?
Surface area of the membrane
In the context of diffusion, what happens when the temperature increases?
The kinetic energy of molecules increases, enabling faster movement
Which of the following statements about diffusion is correct?
Diffusion is important for cellular respiration
What is the primary driving force for passive transport?
Concentration gradient
What happens when a plant cell is surrounded by a hypotonic solution?
Water will move into the vacuole, causing the cell to swell and become turgid.
Which statement about microvilli in cells is true?
Microvilli increase the surface area for absorption by forming tiny projections.
What is the primary function of turgor pressure in plant cells?
To help the plant cell retain its upright posture and extend its leaves.
What happens when a plant cell is surrounded by a hypertonic solution?
The cell will lose water, causing the plasma membrane to shrink and the cell to become plasmolyzed.
How do animal cells regulate their water balance?
By adjusting the concentration of water in the blood through the brain and kidneys.
Which factor affects the rate of diffusion in cells?
Both the distance and the surface area.
Test your knowledge on passive transport, a process where substances move down a concentration gradient without requiring energy input. This quiz covers the concepts of diffusion and osmosis, including the movement of water molecules through cell membranes.
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