Cellular Respiration and Photosynthesis Quiz

Which of the following is the correct equation for aerobic cellular respiration?

• glucose + 6 CO2 -> 6 O2 + 6 H2O + energy intermediates + heat

• glucose + 6 O2 -> 6 CO2 + 6 H2O + energy intermediates + heat

In cellular respiration, carbon dioxide is formed from the oxidation of the following:

• water

• oxygen

• cytochrome oxidase

• NADH

• glucose

Which of the following is a product of glycolysis?

• ethanol

• pyruvate

• carbon dioxide

• NAD+

The electron transport chain:

• NADH and FADH2 are oxidized to power ATP production

• Located in the inner membrane of the mitochondrion

• Final electron acceptor is oxygen

• Electrons are donated at different points

• Hydrogen ions gradient powers ATP synthase

Why does oxidation of NADH result in more ATP than FADH2?

Fatty acids and some amino acids are converted directly into (a)   for ATP production:

Why is pyruvate converted to lactate in anaerobic conditions?

Aerobic vs. Anaerobic metabolism:

• Anaerobic: no oxygen

• Aerobic: oxygen as final acceptor

• Fermentation: breakdown without oxygen

• Yeast fermentation: pyruvate -> CO2 and acetaldehyde

• ATP: aerobic = 34-38, anaerobic = 2

Before entering the citric acid cycle, pyruvate is converted to:

(a)  

A single turn of the citric acid cycle yields: