If the mitochondrion is the result of endosymbiosis, what membrane of the mitochondrion represents the engulfing vesicle?
A. matrix
B. cristae
C. the outer mitochondrial membrane
D. grana
E. vacuole
Answer: C
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In the TCA cycle, two carbons are removed from citric acid in the form of ________, thereby regenerating oxaloacetate to complete the cycle.
A. acetyl-CoA B. methanol C. carbon dioxide D. ethanol
________ techniques are based on recreating a microenvironment in the laboratory to promote the growth of a microorganism formerly restricted to a small ecological niche.
A. PCR B. Fastidious growth C. Community growth D. Enrichment culture
The haploid phase of the plant life cycle begins in the sporangia
Indicate whether the statement is true or false.
Two amino acids of the standard 20 contain sulfur atoms. They are:
A) cysteine and serine. B) cysteine and threonine. C) methionine and cysteine D) methionine and serine E) threonine and serine.