Glycolysis Practice: Cellular Respiration Quiz

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  • 1/5 Questions

    Acetyl-CoA enters fermentation  

    • True
    • False
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About This Quiz

This Glycolysis Practice quiz assesses understanding of cellular respiration. It tests knowledge on the anaerobic process of glycolysis, the role of Acetyl-CoA, and the conversion of NAD+ to NADPH, crucial for learners in biology and biochemistry.

Glycolysis Practice: Cellular Respiration Quiz - Quiz

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  • 2. 

    Glycolysis is what type of process?

    • Anaerobic

    • Aerobic

    • Water

    • Gas

    Correct Answer
    A. Anaerobic
    Explanation
    Glycolysis is an anaerobic process because it occurs in the absence of oxygen. During glycolysis, glucose is broken down into pyruvate, producing a small amount of ATP and NADH. This process is the first step in both aerobic and anaerobic respiration, but in the absence of oxygen, pyruvate is converted into lactate or ethanol to regenerate NAD+ for the continuation of glycolysis. Therefore, glycolysis is considered an anaerobic process.

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  • 3. 

    NAD+ is turned into NADpH

    • True

    • False

    Correct Answer
    A. True
    Explanation
    NAD+ (nicotinamide adenine dinucleotide) can indeed be converted into NADPH (nicotinamide adenine dinucleotide phosphate) through various enzymatic reactions. This conversion is essential for many cellular processes, including the synthesis of fatty acids and cholesterol, as well as the production of energy in the form of ATP. NADPH also plays a crucial role in antioxidant defense mechanisms and in maintaining the balance of reactive oxygen species within cells. Therefore, the statement "NAD+ is turned into NADPH" is true.

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  • 4. 

    What is resulted from glycolysis?

    • ADP

    • NAD+

    • ATP

    • NADPH

    • Glucose

    • Acetyl-CoA

    Correct Answer(s)
    A. ATP
    A. NADPH
    Explanation
    Glycolysis is the metabolic pathway that converts glucose into energy. During glycolysis, glucose is broken down into two molecules of pyruvate, producing a net gain of two ATP molecules and two molecules of NADPH. Therefore, the correct answer is ATP and NADPH, as these are the products that result from glycolysis.

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  • 5. 

                    breaks down glucose to carbon.

    Correct Answer(s)
    ATP
    NADPH
    Pyruvate
    Acetyl-CoA
    Explanation
    The given answer options ATP, NADPH, Pyruvate, and Acetyl-CoA are all molecules involved in the breakdown of glucose. ATP is a molecule that provides energy for cellular processes, including the breakdown of glucose. NADPH is a molecule that acts as a reducing agent in metabolic reactions, including the breakdown of glucose. Pyruvate is a product of the initial steps of glucose breakdown, and Acetyl-CoA is a molecule that is further produced from pyruvate and enters the citric acid cycle to generate more ATP. Therefore, all of these molecules are involved in the breakdown of glucose to carbon.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 05, 2015
    Quiz Created by
    Ellisisaboss
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