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NCERT Solutions for Class 7 Science Chapter 6 - Respiration in Organisms

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Last updated date: 25th Jul 2024
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Class 7 Science Chapter 6 Respiration in Organisms Questions with Answers FREE PDF Download

Vedantu’s Chapter 6, Respiration In Organisms Class 7 Questions With Answers, offers comprehensive guidance on understanding "Respiration in Organisms." This chapter discusses the processes involved in respiration and its significance in living organisms. By downloading the Respiration In Organisms Class 7 PDF, students can access detailed explanations and solutions to all questions asked in the chapter. NCERT Solutions for Class 7 Science are prepared to improve understanding and encourage deeper comprehension, making them essential resources for students preparing for their exams.

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Table of Content
1. Class 7 Science Chapter 6 Respiration in Organisms Questions with Answers FREE PDF Download
2. Class 7 Science Chapter Respiration In Organisms: Quick Insights
3. Access NCERT Solutions for Class 7 Science Chapter 6 – Respiration in Organisms
4. NCERT Science Chapter 6 Class 7- Quick Overview of Topics Covered
5. Science Class 7 Chapter 6 - Important Points
6. Benefits of Vedantu’s NCERT Class 7th Science Chapter 6 Question and Answer
7. Important Study Materials for Science Chapter 6 Respiration in Organisms Class 7
8. Chapter-wise Link for NCERT Solutions Class 7 Science 
9. Other Related Links for Class 7 Science
FAQs


Download the FREE PDF of NCERT Class 7th Science Chapter 6 Question And Answer. These NCERT Solutions are prepared by Vedantu Experts and are updated according to the Class 7 Science syllabus. Begin your journey toward academic success with Vedantu!


Class 7 Science Chapter Respiration In Organisms: Quick Insights

  • Science Class 7 Chapter 6 Respiration In Organisms discusses the process of respiration in organisms, explaining how living beings acquire energy from food through breathing.

  • Class 7 Science Chapter 6 Question Answer explains the steps involved in respiration, including breathing, exchange of gases, and cellular respiration, highlighting their significance in sustaining life.

  • Class 7 Science Chapter 6 PDF Question Answer provides visual aids such as diagrams and illustrations to understand the respiratory system and its functioning better.

  • Science Chapter 6 Class 7 solutions demonstrate real-life applications of respiration concepts, showing how different organisms respire in various environments.

  • Utilising these Class 7 Science Chapter 6 Question Answers can help students assess their level of preparation and understanding of respiration and breathing.

  • The chapter is aligned with the revised syllabus for the academic year 2024-25 and offers resources such as class notes, important concepts, and exemplar solutions.

Access NCERT Solutions for Class 7 Science Chapter 6 – Respiration in Organisms

1. Why Does an Athlete Breathe Faster and Deeper than Usual After Finishing the Race?

Ans: Running requires a lot of energy, and ATP is produced by the breakdown of glucose, which is a rapid source of energy. As a result, while running, all of the reserve energy is used, and more oxygen is required for the generation of fresh ATP. As a result, following the race, the athlete breathes faster.


2. List the Similarities and Differences Between Aerobic and Anaerobic Respiration.

Ans: Similarities include: 

i. The release of energy.

ii. Carbon dioxide is released into the atmosphere.

Differences: 

i. Anaerobic feeding occurs in the absence of oxygen, whereas aerobic respiration necessitates the presence of oxygen.

ii. In aerobic respiration, glucose is entirely broken down, but in anaerobic respiration, incomplete oxidation occurs.


3. Why Do We Often Sneeze When We Inhale a Lot of Dust-Laden Air?

Ans: When we inhale air, undesired particles such as dust, dirt, pollen, and smoke enter our respiratory system, causing irritation in the nasal cavity. This causes sneeze.


4. Take Three Test Tubes. Fill 3/4th of Each With Water. Label Them A, B, and C. Keep a Snail in Test-Tube A, a Water Plant in Test-Tube B, and in C, Keep Snail and Plant Both. Which Test Tube Would Have the Highest Concentration of CO2?

Ans: Test tube-A. 

The maximum concentration of carbon dioxide will be found in test tube A. The snail's respiration produces carbon dioxide (CO2). Snail is an organism that takes in oxygen and exhales carbon dioxide. As a result, the concentration of CO2 in test tube A rises.


5. Tick the Correct Answer: 

i. In Cockroaches, Air Enters the Body Through

i. Lungs

ii. Gills 

iii. Spiracles

iv. Skin

Ans: Spiracles

ii. During Heavy Exercise, We Get Cramps in the Legs Due to the Accumulation Of

i. Carbon Dioxide 

ii. Lactic Acid

iii. Alcohol

iv. Water

Ans: lactic acid

iii. The Normal Range of Breathing Rate Per Minute in an Average Adult Person at Rest Is:

i. 9-12 

ii. 15-18

iii. 21-24 

iv. 30-33

Ans: 15-18

iv. During Exhalation, the Ribs 

i. Move Outwards 

ii. Move Downwards 

iii. Move Upwards

iv. Do Not Move at All.

Ans: Move downwards


6. Match the Items in Column I with Those in Column II 

Column I 

Column II 

Yeast 

Diaphragm 

Skin 

Leaves

Fish 

Frog

Earthworm 

Gills 

Alcohol

Chest cavity

Stomata

Tracheae


Ans : 

Column I 

Column II 

Yeast 

Diaphragm 

Skin 

Leaves

Fish 

Frog

Alcohol 

Chest cavity

Earthworm

Stomata

Gills

Tracheae


7. Mark ‘T’ If the Statement is True and ‘F’ If it is False:

  1. During Heavy Exercise, the Breathing Rate of a Person Slows Down.

Ans: False, When we exercise, our bodies move, which necessitates more energy to complete the task and enough oxygen for organs to function properly. Following the exercise, a person requires additional carbon dioxide to expel the carbon dioxide produced during the exercise. 

  1. Plants Carry Out Photosynthesis Only During the Day and Respiration Only at Night. 

Ans: False, Plants only photosynthesize during the day when the sun is shining, yet they respire all day and night.

  1. Frogs breathe through their skins as well as their lungs.

Ans: True.

  1. The Fishes have Lungs for Respiration.

Ans: False, The gills allow the fish to breathe. Fishes are devoid of lungs.

  1. The Size of the Chest Cavity Increases During Inhalation.

Ans: True.


8. Given Below is a Square of Letters in Which Are Hidden Different Words Related to Respiration in Organisms. These Words May be Present in Any Direction-Upwards, Downwards, or Along the Diagonals. Find the Words for Your Respiratory System. Clues About These Words Are Given Below the Square. 

  1. The Air Tubes of Insects. 

  2. The Skeletal Structure Surrounding the Chest Cavity. 

  3. The Muscular Floor of the Chest Cavity. 

  4. Tiny Pores on the Surface of the Leaf. 

  5. Small Opening on the Sides of the Body of an Insect. 

  6. The Respiratory Organ of Human Beings. 

  7. The Opening Through Which We Inhale. 

  8. An Anaerobic Organism.

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Ans : 

S

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S   (iv)

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T   (i)

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A

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9. the Mountaineers Carry Oxygen With Them Because----------------. 

Ans: The amount of air accessible at that altitude is significantly smaller than on land. Therefore, mountaineers carry oxygen with them. 


NCERT Science Chapter 6 Class 7- Quick Overview of Topics Covered

S. No

Topics of Respiration in Organisms Class 7

1.

Why do we Respire?

2.

Breathing

3.

How do we Breathe?

4.

What do we Breathe Out?

5.

Breathing in other Animals

6.

Breathing Under Water

7.

Do Plants also Respire? 


Science Class 7 Chapter 6 - Important Points

  1. Respiration is the process by which organisms take in oxygen and release carbon dioxide to produce energy from food.

  2. It provides the energy required for various physiological activities and the maintenance of life.

  3. The taking in of air rich in oxygen into the body is called inhalation, and giving out of air rich in carbon dioxide is known as exhalation.


Types of Respiration

  • Aerobic Respiration: Occurs in the presence of oxygen, producing more energy along with carbon dioxide and water as by-products.

  • Equation: Glucose + Oxygen → Carbon Dioxide + Water + Energy

  • Anaerobic Respiration: Occurs in the absence of oxygen, producing less energy. Common in certain bacteria, yeast, and muscle cells during intense exercise.

  • Equation: Glucose → Lactic Acid + Energy (in muscles)

  • In yeast: Glucose → Ethanol + Carbon Dioxide + Energy


  1. Respiratory System in Humans

  • Components: Includes the nasal cavity, trachea, bronchi, lungs, and diaphragm.

  • Mechanism: Air is inhaled through the nose, passes down the trachea and bronchi, and reaches the lungs. Oxygen is exchanged for carbon dioxide in the alveoli (tiny air sacs).

  • Breathing Process: Involves inhalation (taking in oxygen) and exhalation (releasing carbon dioxide).


  1. Respiration in Other Organisms

  • Plants: Respire through tiny openings called stomata. During the day, photosynthesis predominates, but respiration occurs all the


Benefits of Vedantu’s NCERT Class 7th Science Chapter 6 Question and Answer

Referring to NCERT solutions for Respiration In Organisms, Class 7 offers several benefits:


  • Respiration In Organisms Class 7 Questions With Answers provides clear and concise explanations of concepts covered in the chapter, helping students understand the topic of respiration in organisms thoroughly.

  • Respiration In Organisms Class 7 PDF Covers critical topics such as the types of respiration (aerobic and anaerobic), the human respiratory system, and respiration in plants and animals.

  • Class 7 Science Chapter 6 PDF Question Answer assists students in completing their last-minute revision efficiently and effectively, ensuring they are well-prepared for their exams.

  • Detailed methodologies for understanding the mechanisms of respiration, including the breathing process and gas exchange in different organisms.

  • Respiration in Organisms Class 7 solutions include practice questions and exercises that allow students to test their understanding of the concepts discussed in the chapter, reinforcing their learning.

  • By referring to Class 7 Science Chapter Respiration In Organisms Solutions, students can prepare effectively for exams as the solutions cover all the topics and questions likely to be asked in the assessments.

  • Students can use Science Class 7 Chapter 6 PDF solutions to assess their understanding and identify areas where they may need further practice or clarification, enabling them to improve their performance.


Important Study Materials for Science Chapter 6 Respiration in Organisms Class 7

For more insights, students can also download additional study materials provided by Vedantu for Science Class 7 Chapter 6 –



Conclusion

Vedantu’s NCERT Solutions for Class 7 Science Chapter 6: Respiration in Organisms is an excellent resource for understanding this vital biological process. It provides clear and simple explanations, making it easier for students to grasp concepts like the respiratory system, aerobic and anaerobic respiration, and the importance of breathing. Students should focus on understanding the function of different organs involved in respiration and the differences between various types of respiration. Previous year question papers often include 5-7 questions from this chapter, emphasising key concepts and processes. Using Vedantu’s solutions, students can effectively prepare and excel in their exams.


Chapter-wise Link for NCERT Solutions Class 7 Science 


Other Related Links for Class 7 Science

Along with this, students can also download additional study materials provided by Vedantu, for CBSE Class 7 Science-


FAQs on NCERT Solutions for Class 7 Science Chapter 6 - Respiration in Organisms

1. How many topics are there in Chapter 6 of Class 7 Science?

The topics that are included in Chapter 6 of Class 7 Science are:

  • Why Do We Respire?

  • Breathing

  • How Do We Breathe?

  • What Do We Breathe Out?

  • Breathing in Other Animals

  1.  Cockroach

  2. Earthworms

  • Breathing Underwater

  • Do Plants also Respire

The chapter consists of 13 questions which are distributed into two i.e. four long questions and nine short questions.

2.  What procedure should I follow to download the NCERT Solutions of Chapter 6 of Class 7 Science?

Follow the given protocols to download NCERT Solutions of Chapter 6 of Class 7 Science:

  • Click on the link provided.

  • The link will redirect you to the website of Vedantu.

  • After opening the link, you will discover that there is the option of "Download PDF".

  • After tapping that option, the PDF file will immediately get downloaded.

  • You can now study offline.

  • Take the printout of the PDF file for your convenience.

3. Write the differences and similarities between anaerobic and aerobic respiration according to Chapter 6 of Class 7 Science?

Similarities:

  • In both respiration, energy is discharged.

  • Production of carbon dioxide takes place in both respiration.

Differences:

  • Aerobic respiration takes place in the existence of oxygen whereas in the absence of oxygen anaerobic respiration takes place.

  • In aerobic respiration, glucose is broken down entirely whereas, in anaerobic respiration, glucose is broken down incompletely.

Both the respirations are well explained in Chapter 6 of Class 7 Science Solutions by Vedantu. The solutions are free of cost. They are available on the Vedantu website as well as the Vedantu mobile app.

4. Why do human beings often sneeze when they inhale a lot of dust-laden air according to Chapter 6 of Class 7 Science?

The air around us is very polluted. It contains various particles like pollen, dust, smoke, dirt, etc. While breathing, these particles move through the nasal cavity. Our nasal cavity has many small hairs. When we inhale this polluted air, the particles present in the air get trapped by the hairs of the nasal cavity. This trapping of the dirt particles causes unnecessary irritation in the nose. This is the reason why human beings sneeze when they inhale dust-laden air.

5. How do plants respire?

Plants respire through tiny openings called stomata, primarily found on the leaves. They take in oxygen and release carbon dioxide throughout the day and night. However, during the day, photosynthesis predominates, but respiration continues to occur simultaneously.

6. What are the main components of the human respiratory system?

The main components of the human respiratory system include the nasal cavity, trachea, bronchi, lungs, and diaphragm. These structures work together to facilitate the inhalation of oxygen and the exhalation of carbon dioxide.

7. How do NCERT Solutions for Class 7 Science Chapter 6 help in exam preparation?

Vedantu’s NCERT Solutions for Class 7 Science Chapter 6 provides clear and concise explanations of concepts related to respiration and breathing, follows a structured format, and includes practice questions and exercises. They cover all topics and questions likely to be asked in exams, ensuring thorough preparation and helping students identify areas needing further clarification.

8. Why is it important to study Chapter 6, Respiration in organisms?

Understanding respiration is crucial because it is a vital biological process that provides energy for various physiological activities. Students should focus on understanding the function of different organs involved in respiration and the differences between various types of respiration. Previous year question papers often include 5-7 questions from this chapter, emphasising key concepts and processes. Using Vedantu’s solutions, students can effectively prepare and excel in their exams.