All alcoholic beverages are produced as the result of:
a) cellular respiration by yeast occurring in the absence of oxygen.
b) cellular respiration by bacteria occurring in the absence of oxygen.
c) cellular respiration occurring in the absence of sugar.
d) cellular respiration by bacteria occurring in the absence of free hydrogens.
e) cellular respiration by yeast occurring in the absence of free electrons.
Ans: b) cellular respiration by bacteria occurring in the absence of oxygen.
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What is the purpose of an enzyme? Select all the correct choices
A. to increase the rate of a specific reaction B. to decrease the transition state C. to alter the equilibrium of a specific reaction D. to both increase the rate of a specific reaction and decrease the transition state
Bicoid protein is a transcription factor that promotes transcription of the hunchback gene. This is an example of:
A. translational control of gene expression during development. B. translational control of development. C. hierarchical control of gene regulation during development. D. maternal developmental effect. E. oocyte polarization.
What would be the consequence if an individual was homozygous for an IBP that could not bind iron but could bind to the IRE?
A. Unregulated transferrin receptor levels B. Increased degradation of ferritin C. Possible iron toxicity to the cells at levels of iron that would not normally be toxic to a cell D. There would be no predicted consequence to iron metabolism in the cell
A house plant that has been placed in the window will grow toward the source of light because auxin ____
a. becomes more concentrated on the illuminated side of the plant b. becomes less concentrated on the illuminated side of the plant c. becomes more concentrated in the roots of the plant d. inhibits the growth of cells on the shady side, so the cells on the sunny side grow faster e. is produced only when the sun shines