AP Biology Cellular Respiration

The function of fermentation is to regenerate ______ so that glycolysis can continue to produce ATP.

• NAD+

• glucose

• lactic acid

• ethanol

Tags

NGSS.HS-LS2-3

The electrons that transfer energy to pump protons across the inner mitochondrial membrane were supplied by

• ATP and NADPH

• NADH and FADH2

• water and oxygen

Tags

NGSS.HS-LS1-7

Which reaction moves the cellular respiration process from the cytoplasm to the mitochondria?

• glycolysis ---> pyruvate

• pyruvate ---> acetyl CoA

• acetyl CoA ---> PGA

• PGA ---> PGAL

Aerobic cellular respiration also occurs in some aerobic bacteria (prokaryotes). Since these organisms do not have mitochondria, what is the likely location of the electron transport chain (ETC)?

• the nuclear membrane

• the endoplasmic reticulum

• the cell membrane

• the chloroplast

At the end of the Kreb's cycle, where is most of the energy from the original glucose stored?

• in CO₂

• in ATP

• in NADH

• in pyruvate

Tags

NGSS.HS-LS1-7

Which process is the largest contributor to the release of CO₂ 

• Citric Acid Cycle or Krebs Cycle

• Pyruvate Oxidation

• Glycolysis

• Oxidative Phosphorylation 

Tags

NGSS.HS-LS2-5

Which of the following processes creates the most ATP during aerobic cellular respiration?

• glycolysis

• fermentation

• electron transport chain

• Citric acid cycle

The number of ATP molecules produced by the Krebs Cycle per glucose molecule is _______. (Reminder it takes two turns of the cycle to use 1 molecule of glucose)

• 2

• 3

• 4

• 0

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

How many CO₂ molecules are produced by the Krebs Cycle for a molecule of glucose? (Reminder it takes two turns of the cycle to use 1 molecule of glucose)

• 2

• 4

• 6

• 3

Tags

NGSS.HS-LS1-7

Which of the following gets pumped into the intermembrane space?

• FADH₂

• O₂

• H⁺

• NAD⁺