Which of the following statements about phloem unloading at sinks is inconsistent with our current understanding?
A) Passive transport plays a role.
B) Regardless of the type of sink, the conversion of sucrose to storage compounds such as starch is a major part of the process.
C) The mechanisms of sucrose movement and the membrane proteins involved vary among different plant species.
D) The mechanisms of sucrose movement and the membrane proteins involved vary among different sinks within a plant.
E) Active transport plays a role.
Answer: B
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What is one advantage of using transgenic plant cells to produce human proteins for hormone replacement therapy?
a. Transgenic plants produce lower protein yields than transgenic animals. b. Transgenic plants produce higher protein yields than transgenic animals. c. Plant cells are less expensive to grow than other cell types d. Transgenic animals cannot produce human proteins. e. HIV is spread through proteins harvested from transgenic animals.
The G1, S, and G2 phases of the cell cycle are collectively known as
A. meiosis. B. metaphase. C. prophase. D. interphase. E. mitosis.
The high degree of molecular organization in living cells is:
a) greater in animals than it is in plants. b) attained and maintained as a consequence of the violation of the laws of physics. c) attained and maintained only as long as energy fuels the organization. d) stored as heat energy. e) achieved by the synthesis of carbon dioxide in green plants.
Discuss the concept of herd immunity and its importance in creating and maintaining a healthy population
What will be an ideal response?