Which of the following features is characteristic of all
life?
a. organization of molecules into cells
b. metabolic control using enzymes
c. a continuous flow of sustaining energy
d. DNA with its hereditary code
e. all of these
Answer: e
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Bioremediation is:
A. the use of microorganisms to treat open wounds B. the use of microorganisms to break down harmful substances such as sewage, pesticides, petrochemicals, and explosives C. the use of bacteria to attack cancer cells D. the use of microorganisms to attack pathogenic bacteria E. none of the other options presented
Which of the following is NOT a
monosaccharide?
a. glucose b. fructose c. deoxyribose d. starch e. ribose
IP3 binds to ________ receptors.
A. sensor kinase B. phospholipase type-I C. ligand-gated Ca2+ channel D. enzyme-linked E. G-protein coupled
Four of the five choices listed below can help a plant
wall off threats. Select the exception. a. centralized mechanisms b. phenols c. resins d. compartmentalization e. defensive compounds