Which term best describes the typical movement of xylem sap from roots to shoot parts?
a. facilitated diffusion
b. symport
c. osmosis
d. bulk flow
Ans: d. bulk flow
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If both parents are affected, due to the presence of one copy of the dominant allele responsible for the trait being studied, what are the odds that they would have a normal child?
a. 0 b. 25% c. 50% d. 75% e. 100%
How many ATP are spent before a glucose molecule can be broken down to release energy?
A. One B. Two C. Three D. Four E. Six
A cell is placed in a solution that is hypotonic to the cell. Which of the following best describes movement of water in this situation?
a. Water will only flow into the cell. b. Water will only flow out of the cell. c. Water will flow into and out of the cell, but the overall net movement will be out of the cell. d. Water will flow into and out of the cell, but the overall net movement will be into the cell.
What diffuses across the narrow synaptic cleft between the presynaptic axon and the postsynaptic cell to transmit a nerve impulse?
A. Electrical impulse B. Neurotransmitter C. Na+ ion D. Action potential E. Vesicle