The enzyme _____, that is found in tears and saliva, can hydrolyze the bonds in the glycan chains of certain bacterial cell walls.
A. penicillinase
B. lysozyme
C. peptidase
D. All of the choices are correct.
E. None of the choices is correct.
Asnwer: B. lysozyme
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Which stage of photosynthesis, if any, can function in the dark?
A. Stage 2 (the Calvin cycle) B. Stage 1 (the light reactions) C. Both Stage 1 (the light reactions) and Stage 2 (the Calvin cycle) D. Neither Stage 1 (the light reactions) nor Stage 2 (the Calvin cycle)
Villi and microvilli in the small intestine _____
A) neutralize stomach acid B) activate trypsinogen C) increase the surface area to increase the efficiency of nutrient absorption D) emulsify lipid molecules
What are the differences between dysploidy and polyploidy?
What will be an ideal response?
Autotrophs must acquire carbon from organic molecules produced from other organisms.
a. true b. false