Question

Hey! Could someone help me answers these 10 biology questions!

1. Respiration is comprised of a series of redox reactions. The chemical cofactor, NAD+, transitions through two different forms during this process. NAD+ is the _________ form and NADH is the ________ form.

Select one:

a. Reduced, reduced

b. Reduced, oxidized

c. Oxidized, oxidized

d. Oxidized, reduced

2. Reduced molecules in the body that store energy include carbohydrates (sugars) and ________.

Select one:

a. Proteins

b. Lipids

c. None of the above

d. Water

3. For every two (2) pyruvate fed into the Citric Acid Cycle, what are the resulting products?

Select one:

a. 2 FADH2, 6 NADPH, 2 ATP, 2 CO2

b. 1 FADH2, 3 NADH, 1 ATP, 2 CO2

c. 1 FADH2, 1 NADPH, 1 ATP, 2 CO2

4. Which of the following is NOT a true statement regarding cellular respiration?

Select one:

a. Carbon dioxide gas is produced.

b. Enzymes catalyze reactions that transfer electrons.

c. Electrons have a higher potential energy at the end of the process.

d. The process involves multiple redox reactions.

d. 2 FADH2, 6 NADH, 2 ATP, 4 CO2

5. Which of the following is NOT produced from the Citric Acid Cycle?

Select one:

a. CO2

b. NADH

c. FADH2

d. O2

e. ATP

6. Glycolysis is the first step in energy metabolism. Is the presence of oxygen required for this step to occur?

Select one:

a. Yes

b. No

7. What process(es) is (are) required to completely oxidize glucose to carbon dioxide?

Select one:

a. All of the choices listed

b. Oxidation of pyruvate

8. Within a eukaryotic cell, where do glycolysis, the Citric Acid Cycle, and oxidative phosphorylation occur?

Select one:

a. All occur in the cytoplasm

b. All occur in the glycosome

c. None of the choices listed

d. All occur in the mitochondrial matrix

c. Glycolysis

d. Citric Acid Cycle

9. Animals are ___________ because they get energy from organic molecules.

Select one:

a. Chemotrophs

b. Autotrophs

c. Phototrophs

d. Heterotrophs

10. The space inside the mitochondria that is equivalent to the cytoplasm of its bacterial ancestor is called

Select one:

a. Red Pill

b. Blue Pill

c. Neo

d. Matrix

Answer 1

1. Respiration is comprised of a series of redox reactions.The chemical cofactor,NAD+,transitions through two different forms during this process.NAD+ is the oxidized form and NADH is the reduced form.

NAD means nicotinamide adenine dinucleotide.It is synthesized from the vitamin niacin.

NAD+ is the oxidized form of NAD and NADH is the reduced form of NAD.

NAD+ is a electron carrier.Redox reactions are important because they are the major source of energy on this planet.

So option ''D'' is the correct answer.