FREE AND STUDY GAMES ABOUT MICROBIOLOGY TEST 3

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FREE AND STUDY GAMES ABOUT MICROBIOLOGY TEST 3

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -75 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: The bridge step in the krebs cycle

Answer:

Decarboxylation of pyruvic acid Question 2: The use of enzymes is necessary to increase the activation energy requirements of a chemical reaction

Answer:

False

Question 3: Prepatory step

Answer:

Pyruvic acid to acetyl-coA, 0 ATP, 2 Enzymes Question 4: What is t he fate of pyruvic acid in organisms that use aerobic respiration?

Answer:

it is converted to Acetyl COA

Question 5: What is the Fate of NAD+ newly regenerated by fermentation?

Answer:

it returns to glycolysis to pick up more electrons

Question 6: Function of an Enzyme

Answer:

proteins that speed up a reaction by decreasing the 'activation' energy required to start a chemical reaction

Question 7: Describe how biofilms form.

Answer:

Biofilms form when microbes adhere to a surface that is moist and contains organic matter

Question 8: Salts and sugars work to preserve foods by creating a

Answer:

Hypertonic environment Question 9: How many different ATPs can be made from one molecule of Glucose in glycolysis?

Answer:

Two

Question 10: Glycolysis is also known as...

Answer:

Embden- Meyerhof pathway Question 11: Glycolysis is utilized by cells in both respiration and fermentation.

Answer:

True

Question 12: ?Most bacteria grow best at what pH?

Answer:

7

Question 13: What is the source of electrons that reduce 1, 3-bisphosphoglyceric acid?

Answer:

NADPH Nicotinamide adenine dinocleotide phosphate Question 14: Which of the following would you predict is and allosteric inhibitor of the Krebs cycle enzyme?

Answer:

NADH Question 15: Both respiration and photosynthesis require the use of an electron transport chain.

Answer:

True

Question 16: Phosphorlaytion

Answer:

Addition of phosphate group

Question 17: Which of the following is the best definition for fermentation?

Answer:

The oxidation of glucose with organic molecules serving as final electron acceptors.

Question 18: what is the function of GTP?

Answer:

energy carrier

Question 19: What drives the production of ATP in cyclic photophosphorlyation?

Answer:

Protein Gradient

Question 20: Krebs Cycle

Answer:

Acetyl-coA to electrons, 2 ATP, 8 Enzymes

Question 21: Catabolic

Answer:

Breakdown macromolecules into simpler component parts, releasing energy in the process.

Question 22: Carbon fixation occurs during light independent phase of...

Answer:

Photosynthesis

Question 23: What is the role of Pyruvic Acid in Fermentation?

Answer:

It takes the electrons from NADH, and oxidizes them back to NAD+

Question 24: Which acid is produced by fermentation?

Answer:

Lactic Acid and Propionic Acid Question 25: What is the net total (gain or loss) of ATP after one calvin cycle?

Answer:

loss of Nine

Question 26: What carbon molecules remain at the end of glycolysis?

Answer:

Pyruvic Acid

Question 27: The term facultative anaerobe refers to an organism that

Answer:

Uses oxygen or grows without oxygen.

Question 28: Summerize the four steps in aerobic respiration

Answer:

Glycolysis Preparatory step Krebs cycle Electron Transport Chain