9.1 Cellular Respiration

d. All of the above are correct.

ATP synthetase Select one: a. is located in the mitochondrion. b. is activated by the flow of hydrogen ions from the intermembrane space to the matrix. c. converts ADP + Pi to ATP. d. All of the above are correct. e. None of the above are correct.

e. All of the above are correct.

During oxidative phosphorylation Select one: a. the electron transport chain pumps H+ into the intermembrane space of the mitochondrion. b. the electron transport chain receives high energy electrons from NADH. c. ATP synthase uses the energy of the H+ gradient to synthesize ATP. d. Both A and B are correct. e. All of the above are correct.

c. glycogen

Glucose that enters cells can be stored as a long polymer of glucose called Select one: a. protein b. polypeptide c. glycogen d. fat e. triglyceride

a. yields two molecules of ATP for each molecule of glucose processed.

Glycolysis Select one: a. yields two molecules of ATP for each molecule of glucose processed. b. requires oxygen. c. takes place in the mitochondrial matrix. d. requires the Kreb's cycle. e. All of the above are correct.

a. true

Glycolysis does not require oxygen. Select one: a. true b. false

b. false

Glycolysis takes place inside the mitochondrion. Select one: a. true b. false

d. pyruvate

Glycolysis yields 2 molecules of ______________, which are converted to lactic acid under anaerobic conditions. Select one: a. carbon dioxide b. ATP c. Oxygen d. pyruvate e. acetyl CoA

a. true

In absence of oxygen, pyruvate is converted to lactic acid Select one: a. true b. false

c. anabolism...catabolism

Metabolism is subdivided into ____________ (the synthesis of large molecules from small molecules) and ____________ (the breakdown of large molecules into small molecules) Select one: a. destabilization...homeostasis b. catabolism...anabolism c. anabolism...catabolism d. homeostasis...destabilization

a. true

NADH delivers high-energy electrons to the electron transport chain. Select one: a. true b. false

c. is a carrier of high energy electrons.

Nicotimamide adenine dinucleotide (NAD) Select one: a. converts ATP to ADP + Pi. b. is a sodium pump. c. is a carrier of high energy electrons. d. Both B and C above are correct. e. All of the above are correct.

e. acetyl CoA.

Select the molecule that directly enters the Kreb's cycle. Select one: a. lactic acid. b. ATP. c. glucose. d. pantothenic acid. e. acetyl CoA.

a. mitochondrion

The Krebs cycle takes place in a cellular organelle called the ____________________________. Select one: a. mitochondrion b. nucleus c. peroxisome d. endoplasmic reticulum e. lysosome

a. true

The electron transport chain is located in the inner membrane of the mitochondrion. Select one: a. true b. false

e. ATP.

The final product of oxidative phosphorylation is an energy molecule called Select one: a. glycogen. b. glucose. c. insulin. d. myosin. e. ATP.

b. anabolism

The synthesis of proteins from amino acids would be considered Select one: a. catabolism b. anabolism

a. with oxygen.

The term aerobic means Select one: a. with oxygen. b. without carbon dioxide. c. without oxygen. d. with carbon dioxide. e. in the blood.

c. it regenerates NAD+.

Under anaerobic conditions pyruvate is converted to lactic acid. This reaction is necessary because Select one: a. it regenerates ADP. b. lactic acid is fed into the Krebs cycle. c. it regenerates NAD+. d. it generates ATP. e. lactic acid is essential to chemiosmosis.

d. Both A and B above are correct.

Under anaerobic conditions, Select one: a. oxygen is not present. b. the degradation of glucose cannot proceed beyond glycolysis. c. pyruvate enters the Kreb's cycle. d. Both A and B above are correct. e. Both A and C above are correct.

d. All of the above are correct

What energy products does the Kreb's cycle yield? Select one: a. ATP b. NADH c. FADH2 d. All of the above are correct e. none of the above are correct

b. Oxygen accepts the electrons that leave the electron transport chain.

What is the role of oxygen in the process of chemiosmosis? Select one: a. Oxygen flows through the ATP synthase. b. Oxygen accepts the electrons that leave the electron transport chain. c. Oxygen is created as a by-product when water is split. d. Oxygen combines with NADH to form the electron transport chain.

a. molecular oxygen (O2)

What molecule is the final electron acceptor for electrons that travel down the electron transport chain? Select one: a. molecular oxygen (O2) b. NAD+ c. carbon dioxide d. Acetyl CoA e. glucose

a. it will inhibit glycolysis.

Cyanide inhibits the function of the electron transport chain. Cyanide is predicted to have all of the following effects except Select one: a. it will inhibit glycolysis. b. it will inhibit oxidative phosphorylation. c. it will diminish the H+ gradient between the intermembrane space and the matrix of the mitochondrion. d. it will significantly decrease ATP production.

a. Glucose.

Which of the following molecules can be can be metabolized to yield ATP under anaerobic conditions? Select one: a. Glucose. b. All of the above. c. Protein. d. Fat.

c. all of the above are correct

Which of the following molecules can be utilized in cellular respiration to yield ATP? Select one: a. glucose b. none of the above are correct c. all of the above are correct d. amino acids e. fats