NEET Biology — Respiration in Plants

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Which enzyme catalyzes the first irreversible step in glycolysis?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Biology preparation, focusing specifically on the chapter Respiration in Plants. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Catalyzes, Irreversible, Glycolysis, Molecules, Released, and Molecule.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Which enzyme catalyzes the first irreversible step in glycolysis?

A. Hexokinase
B. Aldolase
C. Enolase
D. Pyruvate kinase

Q2. Which pathway is also known as the EMP pathway?

A. Krebs cycle
B. Electron Transport Chain
C. Glycolysis
D. Oxidative Phosphorylation

Q3. How many molecules of carbon dioxide are released from one molecule of glucose during aerobic respiration?

A. 2
B. 4
C. 6
D. 8

Q4. Which of the following molecules is the first stable compound formed in the Krebs cycle?

A. Succinic acid
B. Fumaric acid
C. Citric acid
D. Malic acid

Q5. Which of the following is INCORRECT about the Krebs cycle?

A. It takes place in the mitochondrial matrix.
B. It produces NADH and FADH₂.
C. Glucose enters the Krebs cycle directly.
D. CO₂ is released during the cycle.

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