Gibberellins affect many processes in plants. In seeds embryos, gibberellins are believed to signal hydrolysis of the stored food reserves through inducing the synthesis of the enzyme ?-amylase. Which food source are gibberellins targeting with the release of ?-amylase?
A. fructose
B. protein
C. glycogen
D. starch
E. omega-3 fatty acids
Answer: D
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Research by Christopher Cullis has shown that ____
a. the genome size of plants varies little between species b. the genome size of individual plants of the same species is constant c. a plant’s environment can act as a selective agent to establish advantageous variants, but these variants cannot be transmitted to the next generation d. a plant’s environment can act as a selective agent to establish advantageous variants, and these variants can be transmitted to the next generation e. the genome size of plants is related to plant size
ATP
a. easily gives up phosphate groups. b. forms when ADP covalently bonds to phosphate. c. is the energy currency in the cell’s economy. d. is made by all cells. e. is/does all of these.
__________ are cells that synthesize bone, whereas
__________ break bone down. Fill in the blank(s) with the appropriate word(s).
Which of the following statements regarding the urinary system is true?
A) Bowman's capsule envelops the glomerulus. B) Most glomeruli are located in the renal medulla. C) The urinary bladder receives ammonia for excretion. D) The urethra is responsible for transporting urea from the kidney to the urinary bladder.