1. All microorganisms use oxygen as the final electron acceptor in their ETC. A.

Question

1. All microorganisms use oxygen as the final electron acceptor in their ETC.
         A. True
         B. False

2. An ATPase, in an aerobic ETC, can yield about 34 ATP molecules from a glucose molecule.
        A. True
        B. False

3. Fermentation depends exclusively on glycolysis and the TCA cycle for their ATP synthesis
   A. True
   B. False

4. Lactic acid fermentation yields ------------- as the end product (waste), while maintaining glycolysis.
A. lactic acid
        B. pyruvate
        C. glucose
        D. ATP

5. Put the following metabolic pathways in order from most efficient to least efficient:
         1. aerobic respiration    2. fermentation    3. anaerobic respiration
        A. 2, 3, 1
        B. 1,3,2
        C. 3,2,1
        D. 1, 2, 3

Explanation / Answer

Answer:

1). B. False

Explanation: Microorganisms uses an inorganic molecule as the electron acceptor at the end of the electron transport chain.

2). B. False

Explanation:

Glycolysis NADH yields 2*2=4 ATP

Pyruvate oxidation, 2 NADH yeilds 2*3=6ATP.

Kreb's cycle:

6NADH yields 6*3=18 ATP

2 FADH2 yields 2*2= 4 ATP

Total 32 ATP

3). B. False

Explanation: Fermentation exclusively depends on glycolysis for ATP but not Kreb's cycle as it doesn't occur in fermentation.

4). A. Lactic acid

5). B. 1,3,2

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.