Lab Exam 2 Cellular Respiration

Question 1

What is the primary process that allows eukaryotes to break down food macromolecules?

Answer 1

Aerobic cellular respiration

This process involves redox reactions occurring in the cytoplasm and mitochondria.

Question 2

Where does glycolysis occur?

Answer 2

Cytoplasm

Glycolysis is the first stage of cellular respiration.

Question 3

What are the end products of glycolysis?

Answer 3

4 ATP (2 net) and 2 NADH

Glycolysis uses 2 ATP to start and produces a net gain of 2 ATP.

Question 4

What is the role of ATP in cellular respiration?

Answer 4

Source of free energy to drive chemical reactions

ATP is crucial for energy transfer in metabolic processes.

Question 5

What is NADH and its significance in cellular respiration?

Answer 5

A co-enzyme necessary for the electron transport chain

NADH carries electrons to the final stage of cellular respiration.

Question 6

What are the stages of cellular respiration?

Answer 6

1. Glycolysis
2. Acetyl-CoA Formation and Citric Acid Cycle
3. Electron Transport Chain

Each stage takes place in different locations within the cell.

Question 7

Where does the Acetyl-CoA Formation and Citric Acid Cycle take place?

Answer 7

Inside the mitochondrial matrix

This stage follows glycolysis in the cellular respiration process.

Question 8

Where does the Electron Transport Chain occur?

Answer 8

Inner Membrane of mitochondria

This is the last stage of cellular respiration.

Question 9

What metabolic differences are to be reviewed regarding cellular respiration?

Answer 9

Germinating peas vs. adult plants, animals vs. plants vs. yeast, and the effect of heat

Understanding these differences is essential for comprehending cellular respiration.

Question 10

How does glycolysis generate ATP?

Answer 10

Via substrate level phosphorylation

This method uses enzymes to transfer phosphate groups directly from reactants.