37 Which term describes the condition of red blood cells when placed in a hypert

Question

37 Which term describes the condition of red blood cells when placed in a hypertonic solution? A) hemolysis B) plasmolysis C) crenation D) turgor pressure E) osmotic pressure 38 Which of the following conditions does NOT apply to facilitated transport? A) requires specific carrier proteins B) transports molecules down the concentration gradient C) requires the expenditure of energy D) transports molecules from one side of the membrane to the other side E) transports molecules through the membrane much faster than simple diffusion 39 Which process will transport sodium ions to the outside of the cell and potassium ions to the inside of the cell? A) simple diffusion B) facilitated diffusion C) osmosis D) active transport E) pinocytosis 40 The sodium-potassium pump is considered to be alan) A) simple diffusion B) facilitated diffusion C) osmosis D) pinocytotic E) active transport

Explanation / Answer

Answer:

37). C). Crenation

Explanation:

Crenation is the contraction of a cell after exposure to a hypertonic solution, due to the loss of water through osmosis.

38). C). Requires the expenditure of energy

Explanation: Energy is required in active transport only but not in facilitated diffusion.

39). D). Active transport

Explanation:

The process of moving sodiumand potassium ions across the cell membrance is an activetransport process involving the hydrolysis of ATP to provide the necessary energy.

40). E). Active transport

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