Microbial Nutrients and Energy
Unit 2B Study Guide
Microbial Growth and Metabolism Key
100

What does life depend on?


a. Energy

100

What happens when an enzyme completely denatures?

Loses its active site

100

What molecule is known as the cell’s immediate energy shuttle and contains three phosphate groups.

ATP

200

 What dictates the flow of matter entering and leaving?

a. Fluid Mosaic Gateway


200

 During cellular respiration, a molecule donates electrons to NAD⁺. What happens to the electron donor

It is oxidized because it loses electrons.

200

What is the name of the 10-step pathway taht breaks one glucose molecule into two pyruvate molecules and produces a net gain of 2 ATP.

Glycolysis

300

Which of the following is included in the Blueprint of microbial nutrition?


c. Bioelement

300

 Which statement describes the Second Law of Thermodynamics

Energy can be created but not destroyed

300

What type of reaction releases free energy and has a negative change in free energy?

Exergonic

400

What are the three parts of the atmospheric cycle in order?


b. Fixation, nitrification, denitrification

400

What is the primary role of ATP in a cell?

To act as an energy shuttle that powers cellular work

400

A anaerobic process, pyruvate is reduced directly by NADH to form lactate without releasing carbon dioxide

Fermentation

500

How many systems are in the immortal flow?

6

500

What is metabolism?

All chemical reactions in an organism

500

What uses the energy stored in a hydrogen ion gradient across a membrane to drive cellular work, such as ATP production.

Chemiosmosis