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NCERT Solutions for Class 11 Biology Chapter 14 Respiration in Plants

NCERT Solutions for Class 11 Biology Chapter 14 Respiration in Plants

Edited By Irshad Anwar | Updated on Sep 07, 2023 07:56 PM IST

Respiration in Plants | Biology Class 11 NCERT Solutions

NCERT Solutions for Class 11 Biology Chapter 14 Respiration in Plants: According to the CBSE Syllabus 2023–24, Respiration in Plants NCERT chapter of Biology Class 11 has been renumbered as Chapter 12. Class 11 Biology NCERT Solutions are now available in PDF format. So students can download Solutions for Respiration in Plants NCERT PDF. You may have wondered, Where does all this energy come from? When you go through the NCERT Solutions for Biology, you will learn that we eat food for energy, but the question is: how is energy taken from food? How is this energy utilized? Do all foods provide the same amount of energy? Do plants ‘eat’?. To know the answer to such questions, you need to go through the NCERT Solutions for Class 11 Biology Chapter 14 Respiration in Plants. Each chapter of the Class 11 NCERT Textbook is thoroughly explained in the NCERT Solutions for Class 11. For all of the solutions, these act as resources including Chapter 14 Bio Class 11 NCERT Solutions. Therefore, there is no need to worry about students missing out on crucial information or asking crucial questions when they consult Respiration in Plants Class 11 NCERT Solutions.

This Story also Contains
  1. Respiration in Plants | Biology Class 11 NCERT Solutions
  2. NCERT Solutions For Class 11 Biology Respiration in Plants
  3. NCERT Solutions For Class 11 Biology Respiration in Plants - PDF Download
  4. NCERT Solutions for Class 11 Biology Chapter 14 Respiration in Plants: Solved Exercise
  5. Important Topics of NCERT Solutions for Class 11 Biology Chapter 14 - Respiration in Plants
  6. NCERT Solutions for Class 11 Biology Chapter 14 – Respiration in Plants
  7. Highlights of NCERT Solutions for Class 11 Biology Chapter 14 – Respiration in Plants
  8. NCERT Solutions for Class 11 Biology: Chapter-wise
  9. NCERT Solutions for Class 11: Subject-wise
  10. Check the NCERT Books and NCERT Syllabus here:

NCERT Solutions For Class 11 Biology Respiration in Plants

Respiration in Plants Class 11 NCERT PDF will tell you that all the energy that is required for ‘life’ processes is obtained by the oxidation of some macromolecules that we call ‘food’. In CBSE NCERT Solutions for Class 11 Biology Chapter 14 Respiration in plants, you will get all the answers to these questions that are mentioned in the Respiration NCERT Chapter. According to the Class 11 Biology Chapter 14 NCERT Solutions, only green plants and cyanobacteria can prepare their own food; through the process of photosynthesis. They trap light energy and convert it into chemical energy that is stored in the bonds of carbohydrates like glucose, sucrose, and starch. If you are looking for an answer from any other chapter, even from any other class then go with Classwise NCERT Solutions, there you will also get Chapter 14 Biology Class 11 NCERT Solutions.

Biology Class 11: Respiration in Plants NCERT PDF will also tell you about the pathway of respiration in plants. The respiratory pathway is an amphibolic pathway as it involves both anabolism and catabolism. The respiratory quotient depends on the type of respiratory substance used during respiration. Ch 14 Bio Class 11 NCERT Solutions contain questions and answers based on the all concept of NCERT Respiration in Plants. Respiration in Plants Class 11 Questions and Answers have detailed explanation for better understanding.

After going through Respiration NCERT, you must be able to understand all the answers which are mentioned in Respiration in Plants Class 11 NCERT PDF:

NCERT Solutions For Class 11 Biology Respiration in Plants - PDF Download

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NCERT Solutions for Class 11 Biology Chapter 14 Respiration in Plants: Solved Exercise

The complete Class 11 Biology Chapter 14 NCERT Solutions are given below:

Respiration in Plants Class 11 Questions and Answers

Q1. Differentiate between

(a) Respiration and Combustion

Answer:

Respiration
Combustion
It takes place inside the living cells
It is a non-cellular process
It is a biochemical process
It is a physiochemical process
Energy is released in steps as chemical bonds are broken in steps
Energy is released in a single step as all chemical reactions take place simultaneously
Most of the energy is in the form of ATP
ATP formation does not occur
It requires enzymes
It is non-enzymatic process

Q1. Differentiate between

(b) Glycolysis and Krebs’ cycle

Answer:

Glycolysis
Krebs cycle
Glycolysis takes place inside the cytoplasm
It occurs inside mitochondria
It is a straight or linear pathway
It is a cyclic process
This process is common to both aerobic and anaerobic respiration
This process occurs only in aerobic respiration
It breaks down one molecule of glucose into two molecules of pyruvate
It breaks down pyruvate completely into carbon dioxide and water
It consumes two ATP molecules
It does not consume ATP

Q1. Differentiate between (c) Aerobic respiration and Fermentation

Answer:

Aerobic respiration
Fermentation
It is an intracellular process
Fermentation can occur both intracellularly and extracellularly
It is not economically exploited
It is economically exploited in the production of wine, bread etc.
It is a type of respiration that utilises oxygen to breakdown a respiratory substrate.
It is an enzyme controlled breakdown and transformation of organic nutrients

NCERT Solutions for Class 11 Biology Chapter 14 Respiration in Plants

Q2. What are respiratory substrates? Name the most common respiratory substrate.

Answer:

Respiratory substrates are those organic substances which are oxidised during respiration to liberate energy inside the living cells. The common respiratory substrates are carbohydrates, proteins, fats and organic acids.

Q3. Give the schematic representation of glycolysis?

Answer:

Schematic representation of glycolysis is as follows:

1650623382457

Q4. What are the main steps in aerobic respiration? Where does it take place?

Answer:

The main steps of aerobic respiration are as follows:

1. Glycolysis- Cytoplasm

2. Krebs cycle- Matrix of mitochondria

3. Electron transport system- Inner mitochondrial membrane

4. Oxidative phosphorylation- Oxysome in the inner mitochondrial membrane.

Solutions for NCERT Class 11 Biology Chapter 14 Respiration in Plants

Q5. Give the schematic representation of an overall view of Krebs' cycle.

Answer:

Schematic representation of the Krebs cycle

1650623416287

Q7. Distinguish between the following:

(a) Aerobic respiration and Anaerobic respiration

Answer:

Aerobic respiration
Anaerobic respiration
It involves the exchange of gases
Exchange of gases is absent
It uses oxygen for breaking the respiratory material into simple substances
It does not use oxygen for the breakdown of respiratory substrates.
Respiratory material is completely broken
Respiratory material is partially broken
It involves electron transport
Electron transport is absent

Q7. Distinguish between the following:

(b) Glycolysis and Fermentation

Answer:

Glycolysis
Fermentation
It is the first step of respiration which occurs without the requirement of oxygen and is common to both aerobic and anaerobic modes of respiration
It is anaerobic respiration or respiration which does not require oxygen
Glycolysis produces pyruvic acid
Fermentation produces different products such as ethanol and lactic acid.
IT produces two molecules of NADH per glucose molecule
It uses NADH produced during glycolysis.

Q7. Distinguish between the following:

(c) Glycolysis and Citric acid Cycle

Answer:

Glycolysis
Citric acid cycle
It takes place inside the cytoplasm
It takes place in mitochondria
It is the first step of respiration in which glucose is broken down to the level of pyruvate.
It is the second step of respiration wherein an active acetyl group is broken down completely

Q8. What are the assumptions made during the calculation of net gain of ATP?

Answer:

The assumptions made during the calculation of net gain of ATP are as follows:

1. It is assumed that various parts of aerobic respiration such as glycolysis, TCA cycle, and ETS occur in a sequential and orderly pathway.

2. NADH produced during the process of glycolysis enters into mitochondria to undergo oxidative phosphorylation.

3. The glucose molecule is assumed to be the only substrate while it is assumed that no other molecule enters the pathway at intermediate stages.

4. The intermediates produced during respiration are not utilized in any other process.

Class 11 Ch 14 Bio NCERT Solutions

Q9. Discuss "The respiratory pathway is an amphibolic pathway."

Answer:

The respiratory pathway is an amphibolic pathway

An amphibolic pathway refers to a pathway in which both catabolic and anabolic reactions take place. The products of some reactions are used to synthesise other products. Carbohydrates are broken down to glucose before entering respiratory pathways. Fats get converted into fatty acids and glycerol whereas fatty acids get converted into acetyl CoA before entering the respiration. In a similar manner, proteins are converted into amino acids, which enter respiration after deamination. During the synthesis of fatty acids, acetyl CoA is withdrawn from the respiratory pathway. Also, in the synthesis of proteins, respiratory substrates get withdrawn. Thus, respiration involves both anabolism and catabolism in anabolism. Therefore, respiration can be termed as an amphibolic pathway as it involves both anabolism and catabolism.

Q10. Define RQ. What is its value for fats?

Answer:

The respiratory quotient is defined as the ratio of the volume of CO_{2} evolved to the volume of O_{2} consumed during respiration. The value of respiratory quotient depends on the type of respiratory substrate. The value of RQ for various respiratory substrates is as follows:

Carbohydrates- 1

Fat - 0.7

Organic acids- more than 1

Proteins - less than 1

NCERT Solutions for Class 11 Biology Chapter 14 Respiration in Plants

Q11. What is oxidative phosphorylation?

Answer:

Oxidative phosphorylation

Oxidative phosphorylation is the synthesis of energy-rich ATP molecules with the help of energy liberated during oxidation of reduced coenzymes ( NADH and FADH2 ) produced in respiration. TH enzyme required for the synthesis is called ATP synthase. It is the fifth complex of ETS. During this process, a number of oxidation-reduction reactions occur and lead to the generation of a proton gradient. The enzyme ATP synthase (complex V) consists of F_{0} and F_{1} components. The Fl headpiece is a peripheral membrane protein complex and contains the site for ATP synthesis from ADP and inorganic phosphate whereas F_{0} component is a part of the membrane protein complex, which acts as a channel for the crossing of the protons from the inner mitochondrial membrane to the mitochondrial matrix. For every two protons passing through F_{0}-F_{1} complex, synthesis of one ATP molecule takes place.

Q12. What is the significance of step-wise release of energy in respiration?

Answer:

The process of respiration takes place in a stepwise manner including steps like glycolysis, TCA cycle, ETS, and oxidative phosphorylation. During respiration, the production of ATP also in each phase takes place in a stepwise manner. The products formed in one step of respiration become the substrate of the other pathway. Various molecules produced during respiration are involved in other biochemical processes also. Different respiratory substrates enter and withdraw from the pathway on necessity. The ATP also gets utilized wherever required and the rate of reactions of enzymes is also controlled. Therefore, the stepwise release of energy makes the system more efficient in extracting as well as storing energy.

Important Topics of NCERT Solutions for Class 11 Biology Chapter 14 - Respiration in Plants

The important topics and subtopics of Respiration in Plants Class 11 PDF are given below:

14.1 Do Plants Breathe?

14.2 Glycolysis

14.3 Fermentation

14.4 Aerobic Respiration

14.4.1 Tricarboxylic Acid Cycle

14.4.2 Electron Transport System (ETS) and Oxidative Phosphorylation

14.5 The Respiratory Balance Sheet

14.6 Amphibolic Pathway

14.7 Respiratory Quotient

NCERT Solutions for Class 11 Biology Chapter 14 – Respiration in Plants

The latest CBSE syllabus classifies the NCERT Solutions for Class 11 Biology Chapter 14 – Respiration in Plants, under Unit 4 – Plant Physiology. It is an important part of the unit. Nearly 25% of the total marks, or roughly 18 marks, come from this unit. This information is compiled from historical trends to provide a sense of the topic's importance. If you have any queries in understanding Respiration in Plants Class 11 Questions and Answers which are mentioned in the Respiration in Plants Class 11 NCERT PDF, then again go through the Respiration in Plants NCERT. And try to solve questions of Respiration Class 11 NCERT by yourself and compare them with Respiration in Plants Class 11 NCERT Solutions. As this will help you not only for your school exam as it will also help you in the preparation of other competitive exams like NEET as you may encounter several concept from Class 11 Bio Ch 14 NCERT Solutions.

Highlights of NCERT Solutions for Class 11 Biology Chapter 14 – Respiration in Plants

  • Class 11 Bio Ch 14 NCERT Solutions are framed in accordance with the textbook data.
  • Chapter 14 Bio Class 11 NCERT Solutions provide answers to all the questions of NCERT Respiration in Plants appearing in the same order as provided in the textbook.
  • Chapter 14 Biology Class 11 NCERT solutions are the ultimate resources for all the academic requirements of students in the CBSE session.
  • Class 11 Ch 14 Bio NCERT Solutions are provided in the most efficient and effective pattern.
  • The conceptual knowledge of students can be assessed while referring to Ch 14 Bio Class 11 NCERT Solutions.
  • Respiration in Plants NCERT Solutions are easily available in a ready-to-download format.
  • Respiration in Plants Question and Answers are according to the latest CBSE NCERT syllabus.

NCERT Solutions for Class 11 Biology: Chapter-wise

Chapter 1
The Living World
Chapter 2
Biological Classification
Chapter 3
Plant Kingdom
Chapter 4
Animal Kingdom
Chapter 5
Morphology of Flowering Plants
Chapter 6
Anatomy of Flowering Plants
Chapter 7
Structural Organisation in Animals
Chapter 8
Cell: The Unit of Life
Chapter 9
Biomolecules
Chapter 10
Cell Cycle and Cell Division
Chapter 11
Transport in Plants
Chapter 12
Mineral Nutrition
Chapter 13
Photosynthesis in Higher Plants
Chapter 14
Respiration in Plants
Chapter 15
Plant Growth and Development
Chapter 16
Digestion and Absorption
Chapter 17
Breathing and Exchange of Gases
Chapter 18
Body Fluids and Circulation
Chapter 19
Excretory Products and their Elimination
Chapter 20
Locomotion and Movement
Chapter 21
Neural Control and Coordination
Chapter 22
Chemical Coordination and Integration

NCERT Solutions for Class 11: Subject-wise

Check the NCERT Books and NCERT Syllabus here:

Frequently Asked Question (FAQs)

1. Present the schematic representation of the Citric acid cycle given in respiration in plants class 11 pdf.
Given below is the figure of the Citric acid cycle:  

  

2. What are the benefits of respiration in plants ncert pdf?
  • NCERT is the base of your learning.  
  • You will get all the answers to respiration ncert and respiration in plants class 11 ncert pdf will help you to score good marks in the exam.  
  • Respiration in plants class 11 ncert solutions will also help you with competitive exams like NEET.  
  • Respiration in plants class 11 pdf will also help you in your 12th board exam.  
  • class 11 biology chapter 14 ncert solutions will also boost your knowledge.
  • To score well in the examination, follow the NCERT syllabus and solve the exercise given in the NCERT Book. To practice more problems, students must refer to NCERT Exemplar.
3. What are the important topics of respiration in plants ncert?

These are the important topics of ncert respiration in plants:

  • Glycolysis  
  • Fermentation  
  • Aerobic Respiration  
  • Tricarboxylic Acid Cycle  
  • Electron Transport System (ETS) and Oxidative Phosphorylation  
  • The Respiratory Balance Sheet  
  • Amphibolic Pathway  
  • Respiratory Quotient 
4. What is oxidative phosphorylation given in chapter 14 biology class 11 ncert solutions?

Oxidative phosphorylation is the synthesis of energy-rich ATP  molecules with the help of energy liberated during oxidation of reduced coenzymes ( NADH and FADH2 ) produced in respiration. TH enzyme required for the synthesis is called ATP synthase. It is the fifth complex of ETS. During this process, a number of oxidation-reduction reactions occur and lead to the generation of a proton gradient. 

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