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Plant Physiology - Respiration in Plants

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Q. In which part of the plant does most of the respiration occur? (2020)
  • A. Roots
  • B. Leaves
  • C. Stems
  • D. Flowers
Q. In which part of the plant does most respiration occur? (2020)
  • A. Roots
  • B. Leaves
  • C. Stems
  • D. Flowers
Q. In which part of the plant does respiration primarily occur? (2020)
  • A. Roots
  • B. Leaves
  • C. Stems
  • D. All parts
Q. What is the main purpose of respiration in plants? (2023)
  • A. To produce glucose
  • B. To release energy
  • C. To absorb water
  • D. To synthesize proteins
Q. What is the main substrate for respiration in plants? (2023)
  • A. Starch
  • B. Glucose
  • C. Cellulose
  • D. Sucrose
Q. What is the net gain of ATP from one molecule of glucose during aerobic respiration? (2023)
  • A. 2 ATP
  • B. 30-32 ATP
  • C. 36 ATP
  • D. 38 ATP
Q. What is the net gain of ATP molecules from one molecule of glucose during aerobic respiration? (2023)
  • A. 2
  • B. 18
  • C. 30-32
  • D. 36
Q. What is the primary site of respiration in plant cells? (2021)
  • A. Chloroplast
  • B. Mitochondria
  • C. Cytoplasm
  • D. Nucleus
Q. What is the role of oxygen in aerobic respiration? (2019)
  • A. To produce glucose
  • B. To act as an electron acceptor
  • C. To release energy
  • D. To absorb carbon dioxide
Q. What is the significance of the electron transport chain in respiration? (2023)
  • A. To produce glucose
  • B. To generate ATP
  • C. To release carbon dioxide
  • D. To absorb oxygen
Q. Which enzyme is involved in the Krebs cycle during respiration? (2022)
  • A. ATP synthase
  • B. Hexokinase
  • C. Citrate synthase
  • D. Pyruvate kinase
Q. Which gas is released during the process of respiration in plants? (2022)
  • A. Oxygen
  • B. Carbon dioxide
  • C. Nitrogen
  • D. Hydrogen
Q. Which of the following is NOT a product of cellular respiration? (2021)
  • A. ATP
  • B. Water
  • C. Glucose
  • D. Carbon dioxide
Q. Which of the following is NOT a product of respiration? (2021)
  • A. ATP
  • B. Water
  • C. Glucose
  • D. Carbon dioxide
Q. Which of the following is NOT a stage of cellular respiration? (2021)
  • A. Glycolysis
  • B. Krebs cycle
  • C. Electron transport chain
  • D. Calvin cycle
Q. Which of the following processes occurs during aerobic respiration in plants? (2020)
  • A. Fermentation
  • B. Glycolysis
  • C. Anaerobic respiration
  • D. Photosynthesis
Q. Which of the following statements about respiration in plants is true? (2022)
  • A. It occurs only at night
  • B. It is independent of photosynthesis
  • C. It produces more energy than fermentation
  • D. It only occurs in leaves
Showing 1 to 17 of 17 (1 Pages)

Plant Physiology - Respiration in Plants MCQ & Objective Questions

Understanding "Plant Physiology - Respiration in Plants" is crucial for students preparing for school and competitive exams. This topic not only forms a significant part of the syllabus but also helps in grasping essential biological processes. Practicing MCQs and objective questions enhances your exam preparation and boosts your confidence, enabling you to tackle important questions effectively.

What You Will Practise Here

  • Key concepts of respiration in plants, including aerobic and anaerobic respiration.
  • Detailed study of the process of glycolysis and the Krebs cycle.
  • Understanding the role of mitochondria in energy production.
  • Diagrams illustrating the respiration process in plants.
  • Definitions of important terms such as ATP, NADH, and FADH2.
  • Factors affecting the rate of respiration in plants.
  • Comparison between respiration and photosynthesis.

Exam Relevance

This topic is frequently featured in CBSE, State Boards, NEET, and JEE exams. Students can expect questions that test their understanding of the respiration process, its significance, and its comparison with other physiological processes. Common question patterns include multiple-choice questions that require students to identify processes, define terms, or interpret diagrams related to respiration in plants.

Common Mistakes Students Make

  • Confusing the processes of respiration and photosynthesis.
  • Overlooking the importance of anaerobic respiration in plants.
  • Misunderstanding the role of different cellular organelles in respiration.
  • Failing to relate the factors affecting respiration to real-life examples.

FAQs

Question: What is the primary function of respiration in plants?
Answer: The primary function of respiration in plants is to convert glucose into usable energy (ATP) for cellular activities.

Question: How does anaerobic respiration differ from aerobic respiration in plants?
Answer: Anaerobic respiration occurs without oxygen and produces less energy, often resulting in by-products like alcohol or lactic acid, while aerobic respiration requires oxygen and yields more energy.

Now is the time to enhance your understanding of "Plant Physiology - Respiration in Plants." Dive into our practice MCQs and test your knowledge to excel in your exams!

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