BIOD 171 MODULE 2 PORTAGE LEARNING MICROBIO EXAM QUESTION AND ANSWER LATEST UPDATE 2025

BIOD 171 MODULE 2 PORTAGE LEARNING MICROBIO EXAM
QUESTION AND ANSWER LATEST UPDATE 2025


Question 1

True or false: metabolism is a controlled set of biochemical reactions that occur in living organisms in
order to maintain life.

True



Question 2

True or false: enzymes slow down chemical reactions to conserve energy

false, they speed up (catalyze) chemical reactions



Question 3

The term for metal ions that assist enzymes during the catalysis reaction

cofactors



Question 4

What is catabolism?

The process of breaking down larger molecules into useful energy sources



Question 5

Upon cellular injury, which metabolic process is involved during the growth and repair phases of the cell.

anabolism

, Question 6

An organism that obtains its energy (derives ATP) from photons of light is called a __________________

phototrophic microorganism



Question 7

An organism that derives its energy by removing electrons from elemental sulfur would be classified as a
____________

Lithotroph



Question 8

Describe the energy transfer process relative to both ADP and ATP

ATP has the energy (phosphate group) to donate, and ADP can accept energy in the form of a
phosphate group. Thus, ATP can be dephosphorylated (ATP-----> ADP + Pi), while ADP can be
dephosphorylated into ATP (ADP + Pi -----> ATP)



Question 9

This phosphorylation process occurs in the mitochondria of chemotropic eukaryotes

oxidative phosphorylation



Question 10

The catabolism of a single molecule of glucose goes through what three transitions

The breakdown of glucose goes through 1. glycolysis 2. fermentation or respiration and then 3.
electron transport chain ETC



Question 11

True or false: in the absence of absence of oxygen fermentation produces 2 ATP

false



Question 12

what is the primary byproduct of the TCA cycle select