Which of the following is true of protein-based plant chemical defenses?
A. Plants and animals use the same 20
amino acids to construct proteins, but some
plants have additional amino acids.
B. Plants use the additional amino acids in
their proteins, but animals that ingest them
cannot.
C. Insect herbivores that consume nonprotein
amino acids grow more quickly and live
longer.
D. Plants can produce protease inhibitors,
which bind to the active site of enzymes that
break down proteins and enhance their
activity.
E. Insects that feed on plants with protease
inhibitors have increased growth rates.
A
You might also like to view...
The Ti plasmid is best suited for genetically manipulating
A) Agrobacterium spp. B) fish. C) plants. D) viruses.
Provide a brief argument for the following statement: “single-celled protists are complex”
What will be an ideal response?
Jim is suffering from congestive heart failure, in which blood flow is backed up in his lungs and excess fluid is escaping the blood and accumulating in his lung tissue. If untreated, increasing pulmonary edema will lead to death by suffocation. What is the most-likely cause of Jim’s congestive heart failure?
A. Contraction of his right atrium is not keeping up with contraction of his left atrium. B. Contraction of his left ventricle is not keeping up with contraction of his right ventricle. C. Jim’s pulmonary semilunar valve is not opening properly. D. Jim’s SA node is malfunctioning. E. Jim’s right atrioventricular valve (tricuspid valve) is not closing properly. Gather Content What do you already know about the path of blood between the heart and the lungs? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The urinary system helps to maintain the
extracellular fluid pH by a. synthesizing buffers. b. retaining carbon dioxide in the filtrate. c. excreting excess hydrogen ions. d. combining hydrogen ions with urea. e. signaling the respiratory system to adjust breathing rate.