Q1. Select ALL that apply to the functional characteristics of the electron tran

Question

Q1.

Select ALL that apply to the functional characteristics of the electron transport chain (ETC):

A. The ETC transfers electrons from NADH and FADH2 to oxygen.

B. The ETC pumps protons into the matrix from the intermembrane space.

C. The ETC oxidizes pyruvate into acetyl-CoA.

D. The ETC pumps protons across the inner mitochondrial membrane.

Q2.

Select ALL that apply to the physical components of the electron transport chain:

A. The proteins that make up the ETC contain iron sulfur clusters and heme groups that act as electron carriers.

B. The proteins that make up the ETC are primarily free floating in the mitochondrial matrix.

C. The proteins that make up the ETC are transmembrane proteins.

D. Some of the proteins that make up the ETC are responsible for pumping protons from the intermembrane space into the mitochondrial matrix.

Q3.

Which of the following is/are true of glycolysis?

(Select ALL that apply.)

A. It does not produce ATP or NADH.

B. It converts glucose to pyruvate.

C. It produces CO2.

D. It requires oxygen.

E. It occurs inside the mitochondria.

Q4.

Which of the following is/are true of the citric acid cycle?

(Select ALL that apply.)

A. It occurs in mitochondrial matrix.

B. Pyruvate directly feeds into the citric acid cycle.

C. It occurs in the cytoplasm.

D. It transfers electrons from acetyl-CoA to the universal electron acceptors NAD+ and FAD.

E. It sequentially oxidizes acetyl-CoA into CO2.

F. It requires oxygen.

Q5.

Select the molecules below that are the reactants or products for glycolysis or the citric acid cycle.

Select ALL that apply for each question.

Part 1. Glycolysis

Select the reactant or reactants for glycolysis:

A. Acetyl-CoA

B. Carbon Dioxide

C. FADH2

D. Glucose

E. NADH

F. Pyruvate

Select the product or products of glycolysis:

A. Acetyl-CoA

B. ATP

C. Carbon Dioxide

D. FADH2

E. Glucose

F. NADH

G. Pyruvate

Part 2. Citric Acid Cycle

Select the reactant or reactants for the citric acid cycle:

A. Acetyl-CoA

B. ATP

C. Carbon Dioxide

D. FADH2

E. Glucose

F. NADH

G. Pyruvate

Select the product or products of the citric acid cycle:

A. Acetyl-CoA

B. Carbon Dioxide

C. FADH2

D. Glucose

E. NADH

F. Pyruvate

Q6.

Select ALL that apply for EACH question.

Part 1. Where does glycolysis occur? Select ALL that apply:

A. Cytosol

B. Golgi

C. Mitochondria

D. Lysosome

Part 2. Where does ATP synthesis occur?Select ALL that apply:

A. Cytosol

B. Golgi

C. Mitochondria

D. Lysosome

Part 3. Where does the most ATP synthesis occur?Select ALL that apply:

A. Cytosol

B. Golgi

C. Mitochondria

D. Lysosome

Part 4. Where does oxidative phosphorylation occur?Select ALL that apply:

A. Cytosol

B. Golgi

C. Mitochondria

D. Lysosome

Part 5. Where does the citric acid cycle occur?Select ALL that apply:

A. Cytosol

B. Golgi

C. Mitochondria

D. Lysosome

Q7.

Which of the following is required for facilitated diffusion across a membrane?

(Select ALL that apply.)

A. A protein channel

B. Concentration gradient of the cargo across the membrane

C. ATP

Q8.

Recall that the inside of a phospholipid bilayer is hydrophobic, such that hydrophilic molecules cannot readily diffuse through a cell membrane. Which of the following would require a protein channel to cross a cell membrane?

(Select ALL that apply.)

A. chloride ions (Cl-1)

B. sugar molecules

C. Oxygen(O2)

D. amino acids

Q9.

Which of the following determines whether or not a substance will diffuse across a cell membrane?Select ONE option:

A. Whether the substance is polar or nonpolar

B. Whether the substance is large or small

C. Whether there is a concentration difference on either side of the membrane

D. All of the above

Q10.

A single ATP synthase is capable of generating about 30 ATP molecules for every 100 protons that flow through its F0 complex. If we isolated a mutant ATP synthase in which one of its three beta-subunits could not bind ADP, how many ATP molecules would this mutant be expected to generate for every 100 protons that flow through it?Select ONE option:

A. 30 ATP molecules

B. 20 ATP molecules

C. 10 ATP molecules

D. 0 ATP molecules

Explanation / Answer

1. A and D are true

In etc electrons are transferred from NADH AND FADH2 to O2

In etc protons are pumped across inner mitochondrial membrane.

2. A ,C and D are true.

Protein contains iron sulfur and haeme containg groups

Proteins are transmembrane

They help in pumping of protons

3 . B and C are true

Glycolysis produces glucose to pyruvate

It produces carbon dioxide.

4. A is true .it takes place in mitochondrial matrix.

B is true it feeds on pyruvate directly

D is true that is it transfer electrons from acetyl coa to NAD+

E is true acetyl coA is converted into CO2.

5. Part 1

Reactants of glycolysis is glucose and products of glycolysis are pyruvate atp and nadh

Part 2

Reactants of citric acid cycle is pyruvate and products are NADH FADH2 ATP AND CO2.

6. part 1.

Glycolysis occurs first step in cytoplasm and remaining in mitochondria

Part2. Atp synthesis occurs in mitochondria

Part3. Most atp synthesis occurs in mitocho dira

Part4 oxidative phosphorhylation occurs in mitochondira

Part5. Citric acid cylce occurs in mitochondrial matrix

7. A and B

A protein channel

Concentration gradient

8. A and D

Chloride ions and amino acids

9. D

All of the above

Polarity of substance

Size of substance

Concentration gradient

10. Sorry i dont know about this.

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