Glycolysis

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Glycolysis MCQ & Objective Questions

Glycolysis is a fundamental biochemical pathway that plays a crucial role in cellular respiration and energy production. Understanding glycolysis is essential for students preparing for school exams and competitive exams, as it frequently appears in various formats, including MCQs and objective questions. Practicing these questions not only enhances conceptual clarity but also boosts confidence and improves scores in exams.

What You Will Practise Here

  • Overview of the glycolysis pathway and its significance in metabolism.
  • Step-by-step breakdown of the glycolytic process, including key enzymes involved.
  • Important glycolysis formulas and their applications in calculations.
  • Diagrams illustrating the glycolysis pathway and energy yield.
  • Definitions of key terms related to glycolysis, such as substrate-level phosphorylation.
  • Common regulatory mechanisms and their impact on glycolysis.
  • Comparison of glycolysis with other metabolic pathways like gluconeogenesis.

Exam Relevance

Glycolysis is a significant topic in various educational boards, including CBSE and State Boards, as well as competitive exams like NEET and JEE. Questions related to glycolysis often appear in the form of multiple-choice questions, fill-in-the-blanks, and short answer questions. Students can expect to encounter questions that test their understanding of the glycolytic pathway, the role of enzymes, and the overall energy yield from glucose metabolism.

Common Mistakes Students Make

  • Confusing the steps of glycolysis with those of gluconeogenesis.
  • Overlooking the importance of key enzymes and their regulatory roles.
  • Misunderstanding the energy investment and payoff phases of glycolysis.
  • Failing to recognize the significance of NADH production during glycolysis.
  • Neglecting to memorize the intermediates formed during the glycolytic process.

FAQs

Question: What is glycolysis?
Answer: Glycolysis is the metabolic pathway that converts glucose into pyruvate, producing ATP and NADH in the process.

Question: Why is glycolysis important for exams?
Answer: Glycolysis is a key topic in biology and biochemistry, frequently tested in school and competitive exams, making it essential for students to master.

Start your exam preparation today by solving Glycolysis MCQ questions and objective questions with answers. Test your understanding and solidify your knowledge to excel in your exams!

Q. In anaerobic conditions, pyruvate is converted to which substance?
  • A. Acetyl-CoA
  • B. Ethanol
  • C. Lactate
  • D. Oxaloacetate
Q. What is the function of aldolase in glycolysis?
  • A. Phosphorylation
  • B. Cleavage
  • C. Isomerization
  • D. Dehydrogenation
Q. What is the net ATP yield from one molecule of glucose during glycolysis?
  • A. 2 ATP
  • B. 4 ATP
  • C. 6 ATP
  • D. 0 ATP
Q. What is the primary end product of glycolysis?
  • A. Lactate
  • B. Pyruvate
  • C. Acetyl-CoA
  • D. Glucose
Q. What is the role of phosphofructokinase in glycolysis?
  • A. Regulatory enzyme
  • B. Energy production
  • C. Substrate-level phosphorylation
  • D. Dehydrogenation
Q. Which enzyme catalyzes the conversion of glucose to glucose-6-phosphate in glycolysis?
  • A. Hexokinase
  • B. Phosphofructokinase
  • C. Pyruvate kinase
  • D. Aldolase
Q. Which molecule acts as the electron carrier in glycolysis?
  • A. NAD+
  • B. FAD
  • C. CoA
  • D. ATP
Q. Which of the following is NOT a product of glycolysis?
  • A. NADH
  • B. ATP
  • C. FADH2
  • D. Pyruvate
Q. Which step of glycolysis involves substrate-level phosphorylation?
  • A. Conversion of glucose to glucose-6-phosphate
  • B. Conversion of 1,3-bisphosphoglycerate to 3-phosphoglycerate
  • C. Conversion of phosphoenolpyruvate to pyruvate
  • D. Conversion of fructose-1,6-bisphosphate to glyceraldehyde-3-phosphate
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