Question

1. what enzyme is used within the electron transport chain to create atp?

a. citric acid b. pyruvate c. atp synthase

1. where does glycolysis occur?

a. cytoplasm b. mitochondria c. chloroplast

1. which process produces the largest amount of atp?

a. fermentation b. krebs cycle c. etc

1. the oxygen required by cellular respiration is reduced and becomes part of which molecule?

a. atp b. co₂ c. h₂o

Explanation:

Question 7

In the electron transport chain, ATP Synthase uses the proton gradient to synthesize ATP. Citric acid is part of the Krebs cycle, and pyruvate is from glycolysis.

Glycolysis is the first step of cellular respiration and occurs in the cytoplasm. Mitochondria are for later stages (Krebs, ETC), and chloroplasts are for photosynthesis.

The Electron Transport Chain (ETC) produces the most ATP (30 - 32 per glucose). Fermentation makes 2, and Krebs makes 2 per glucose.

Answer:

c. ATP Synthase

Question 8