Calcium ions may act as second messengers by binding to __________, which then regulates other
proteins.
a. adenylyl cyclase
b. cyclic AMP
c. calmodulin
d. phosphodiesterase
e. protein kinase
C
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Suppose a living plant cell has ? = ?S = ?0.5 MPa. If the plant cell is placed into a beaker filled with a
solution with ? = 0, then the cell should
a. take up water until it bursts. b. lose water until its ? = ? of the solution. c. take up water until within the cell ?P = ??S. d. take up water until its ?S = ?S of the solution. e. lose water until its ?S = its ?P.
Modified leaves that protect meristematic tissue at the tips of woody plants are known as:
a. bulbs. b. bud scales. c. spines. d. tendrils. e. scale scars.
Plants do photosynthesis only and animals do cellular respiration only.
Answer the following statement true (T) or false (F)
Which of the following is considered a cardinal growth temperature?
A. The optimum temperature B. The minimum temperature C. The maximum temperature D. All of these are considered cardinal growth temperatures.