Biology & Microbiology - Molecular And Microbiology ,Quiz Grade 5

1

Free

Supercoiling is important for DNA structure, because

2

Free

Which of the following statements is TRUE concerning mRNA?

3

Free

AT-rich DNA will denature/melt

4

Free

DNA-binding proteins interact predominantly within which portion of a double-stranded DNA helix?

5

Free

The functional unit of genetic information is the

6

Consider a pizza dough made by vigorously mixing to form gluten and evenly disperse the ingredients such as baker's yeast (Saccharomyces cerevisiae)

7

Explain why the amount of energy released in a redox reaction depends on the nature of both the electron donor and the electron acceptor

8

A beer-making microbiologist noticed that no matter how long the brewing process went, 3% alcohol was the maximum produced

9

Differentiate between exergonic and endergonic in terms of free-energy calculations

10

Explain what an enzyme must accomplish to catalyze a specific reaction

11

In an aquatic microbial community where a photoautotroph, chemoorganoheterotroph, and nitrogen fixing bacterium are present, predict an environmental perturbation that would cause only one to be outcompeted by the other two groups and explain how each group would respond

12

Discuss why energy yield in an organism undergoing anaerobic respiration is less than that of an organism undergoing aerobic respiration

13

Explain the biosynthetic and bioenergetic roles of the citric acid cycle

14

Summarize the roles the proton motive force has in microbial metabolism

15

Categorize the circumstances under which the same substance (molecule) can be either an electron donor or an electron acceptor

16

Contrast fermentation and respiration in terms of electron donor, electron acceptor, type of ATP production, and relative number of ATP produced

17

Compare and contrast defined media and complex media. Use specific examples in your

18

The net result of electron transport is the generation of a pH gradient and an electrochemical potential across the membrane

19

A bacterium that lacks an arginine biosynthetic pathway would still be able to make proteins with arginine and grow only if arginine is supplemented into the growth medium

20

During the electron transport process, protons and electrons become physically separated in the cell membrane

21

Many defined growth media that support microbial growth lack malonate, which is an important precursor for biosynthesis of lipid membranes. Based on this, we can infer cells also must have a metabolic pathway to generate malonate from other compounds

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Biology & Microbiology - Molecular And Microbiology ,Quiz Grade 5

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