Which of the following statements is TRUE?
A) Oxygen is a product of cellular respiration; carbon dioxide is a product of photosynthesis.
B) Lactic acid is a product of aerobic respiration; ethyl alcohol is a product of fermentation.
C) Oxidation is the loss of electrons; reduction is the gain of electrons.
D) Glucose is a product of aerobic respiration; lactic acid is a product of anaerobic respiration.
C
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Which of the following statements about phloem unloading at sinks is inconsistent with our current understanding?
A) Passive transport plays a role. B) Regardless of the type of sink, the conversion of sucrose to storage compounds such as starch is a major part of the process. C) The mechanisms of sucrose movement and the membrane proteins involved vary among different plant species. D) The mechanisms of sucrose movement and the membrane proteins involved vary among different sinks within a plant. E) Active transport plays a role.
Some alleles in the heterozygous state are beneficial, whereas in the homozygous state they are harmful
A. true B. false
Intermediate filaments assemble and disassemble in a living cell
a. true b. false
Which of the following occurs in the lightindependent
reactions of photosynthesis? a. Water is broken down. b. Glucose is produced. c. Oxygen is released. d. NADP+ is reduced. e. ATP is produced.