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22. Which of the following answer choices is CORRECT about ATP synthase?

ATP synthase is a transport protein.

23. The conversion of isocitrate to a-ketoglutarate in the citric acid cycle (Krebs cycle) can be described as ______ because a molecule of COz is produced as a by-product.

Decarboxylation

24. When NH, is added to oxaloacetic acid to form aspartic acid (an amino acid), the process is termed

Amination

25. An organism that produces the enzyme catalase is produced from the harmful effects of

peroxide anion (O2^2)

26. A microbe that grows evenly throughout a tube of thioglycollate medium (shown in the figure the right) is probably a(n) _________

aerotolerant anaerobe.

27. Arabinose is a five-carbon sugar that is found widely in nature and can serve as a sole carbon source in many bacteria.The protein products from three genes (araB, ara/1, and araD) are needed for arabinose degradation in members of the Enterobacteriacee family. The enzyme encoded by araA converts the aldopentose l-arabinose (CsH,O,) to a ketopentose I-ribulose (CsH,Os). This enzyme is an example of a(n) ________

Isomerase

Acetyl-CoA synthetase combines acetate and coenzyme A to form acetyl-CoA for the Krebs cycle. This enzyme would be classified as a(n)

Ligase

29. The use of salt and sugar in preserving various types of foods is an application of which of the following concepts?

osiotic pressure

30. In which growth phase would bacteria produce defensive compounds like antibiotics and bacteriocins?

B