Citric Acid Cycle

Which of the following structure is where cellular respiration (Kreb's Cycle and Electron Transport Chain) occurs in the cell?

• nucleus

• cytoplasm

• mitochondria

• vacuoles

Tags

NGSS.HS-LS1-7

NADH is a ______ form of NAD+.

• Reduced

• Oxidized

• Catabolized

• Hydrolized

What are the stages of cellular respiration in order?

• glycolysis, oxidative phosphorylation, the citric acid cycle

• oxidative phosphorylation, glycolysis, the citric acid cycle

• glycolysis, the citric acid cycle, oxidative phosphorylation

• the citric acid cycle, oxidative phosphorylation, glycolysis

Tags

NGSS.HS-LS1-7

Water is produced as a byproduct during this stage of cellular respiration.

• True

• False

Tags

NGSS.HS-LS1-7

Please identify the proper locations for each step of cellular respiration.

• Glycolysis = Cytoplasm

• Glycolysis = Mitochondria

• Citric Acid Cycle = Cytoplasm

• Citric Acid Cycle = Mitochondria

• Oxidative Phosphorylation = Cytoplasm

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

What does FADH2 and NADH bring to the electron transport chain?

• Oxygen

• Water

• Electron

• ATP

Approximately how many molecules of ATP can be produced from the oxidation of a 20 carbon fatty acid, including those produced in the Krebs cycle?

• 107

• 100

• 129

• 136

Tags

NGSS.HS-PS3-1

Which molecule is the primary carrier of electrons in the citric acid cycle?

• NADH

• FADH2

• ATP

• GTP

What is the main purpose of the citric acid cycle in cellular respiration?

• To produce glucose

• To generate ATP directly

• To oxidize acetyl-CoA to carbon dioxide

• To synthesize fatty acids

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which enzyme catalyzes the first step of the citric acid cycle?

• Citrate synthase

• Aconitase

• Isocitrate dehydrogenase

• Succinate dehydrogenase