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10. Respiration in Organisms Class 7 Science Solutions English Medium-NCERT Exercise
10. Respiration in Organisms Class 7 Science Solutions English Medium-NCERT Exercise Get chapter-wise detailed explanations, step-by-step answers, important questions and exam-ready study material in Hindi and English medium.
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10. Respiration in Organisms Class 7 Science Solutions English Medium-NCERT Exercise
NCERT Solutions for Class 7 are specially prepared according to the latest CBSE syllabus (2026-27) to help students understand every concept clearly. These solutions provide step-by-step explanations, accurate answers, and exam-oriented guidance for all chapters. Class 7 students can improve their problem-solving skills, strengthen conceptual understanding, and prepare confidently for school as well as board examinations. All questions are solved in a simple and easy-to-understand language for both Hindi and English medium learners.
10. Respiration in Organisms Class 7 Science Solutions English Medium-NCERT Exercise
NCERT Solutions Class 7 Science English Medium
10. Respiration in Organisms
Topic: NCERT Exercise
Exercise
Q1. Why does an athlete breathe faster and deeper than usual after finishing the race?
Answer:
During running, the athlete uses up lot of energy. So, he/she needs more energy and so breathes faster breakdown of food to release energy.
Q2. List the similarities and differences between aerobic and anaerobic respiration.
Answer:
Similarity: (i) Energy is released.
(ii)Carbon dioxide is produced.
Differences: (i) Anaerbic respiration does not reqire oxygen while aerobic respiration take place in the presence of oxygen.
(ii) Glucose is completly broken down into carbon dioxide and water in aerobic respiration but not in anaerobic respiraton.
3. Why do we often sneeze when we inhale a lot of dust-laden air?
Answer:
When we inhale a lot of dust laden air often these particles get trapped in the hair present in the nasal cavity. then they irritate the lining of the cavity,as a result of which we sneeze. Sneezing expels these foregion particles from the inhaled air and a dust free, clean air enters our body.
4. Take three test-tubes.Fill th 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?
Answer:
Test - Tube - C.
5. Tick the correct answer:
(a) In cockroaches, air enters the body through
(i) lungs (ii) gills (iii) spiracles (iv) skin
(b) During heavy exercise, we get cramps in the legs due to the accu mulation of
(i) carbon dioxide (ii) lactic acid (iii) alcohol (iv) water
(c) 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
Answer:
(a) - (iii)
(b) - (ii)
(c) -(ii)
(d) - (ii)
Column I Column II6. Match the items in Column I with those in Column II:
(a) Yeast (i) Earthworm
(b) Diaphragm (ii) Gills
(c) Skin (iii) Alcohol
(d) Leaves (iv) Chest cavity
(e) Fish (v) Stomata
(f) Frog (vi) Lungs and skin
Answer:
| Column I | Column II |
| (a) Yeast | (iii) Alcohol |
| (b) Diaphagram | (iv)Chest cavity |
| (c) Skin | (i) earthworm |
| (d) Leaves | (v) Stomata |
| (e) Fish | (ii) Gills |
| (f) Frog | (vi) Lungs and skin |
Q7. Mark ‘T’ if the statement is true and ‘F’ if it is false:
(i) During heavy exercise the breathing rate of a person slows down. (T/F)
(ii) Plants carry out photosynthesis only during the day and respiration only at night. (T/F)
(iii) Frogs breathe through their skins as well as their lungs. (T/F)
(iv) The fishes have lungs for respiration. (T/F)
(v) The size of the chest cavity increases during inhalation. (T/F)
air is higher than that on the ground. (T/F)
Answer:
(i) false
(ii) false
(iii) true
(iv) false
(v) true
All Topics From 10. Respiration in Organisms
See other sub-topics of this chapter:
1. topic -1 2. NCERT Exercise 3. Additional Questions With Solutions 4. topic -4NCERT Solutions Class 7 Hindi and English Medium – Complete Study Material
NCERT Solutions Class 7 students ke liye specially CBSE latest syllabus (2026-27) ke according prepare kiye gaye hain. Yeh solutions Hindi aur English medium dono ke liye available hain, jisse har student apni language preference ke hisaab se padh sakta hai. Har chapter ke sabhi prashnon ke step-by-step answers diye gaye hain jo concept clarity aur exam preparation me madad karte hain.
Chapter-Wise Detailed Explanations
Class 7 ke liye diye gaye Chapter Wise NCERT Solutions me har question ka detailed aur easy explanation diya gaya hai. Chahe aap CBSE Board Exam Preparation kar rahe ho ya school test ke liye revise kar rahe ho, yeh solutions aapko complete understanding denge. Har answer simple language me likha gaya hai jisse students concepts ko easily grasp kar saken.
Hindi and English Medium Support
Students Hindi aur English medium dono me NCERT Book Solutions Class 7 access kar sakte hain. Yeh dual language support un students ke liye helpful hai jo apni regional language me better samajhna chahte hain. Sabhi answers CBSE Latest Syllabus 2026-27 ke anusaar update kiye gaye hain.
Important Features of NCERT Solutions
- Class 7 NCERT Solutions PDF
- CBSE Class 7 Study Material
- NCERT Book Questions and Answers
- Exam Oriented Important Questions
- Step-by-Step Detailed Solutions
- Concept Clarity and Revision Notes
Why Students Should Use NCERT Solutions?
Aaj ke competitive environment me sirf textbook padhna kaafi nahi hota. NCERT Solutions for Class 7 students ko practice aur conceptual understanding dono provide karte hain. Yeh solutions unhe exam pattern samajhne, frequently asked questions practice karne aur high score achieve karne me madad karte hain. Regular practice se students apne weak topics ko improve kar sakte hain.
Best Resource for Exam Preparation
Agar aap Class 7 CBSE Preparation ke liye ek trusted aur reliable source dhundh rahe hain, to yeh NCERT Solutions perfect choice hain. Yeh study material school exams, unit tests, half-yearly aur annual exams ke liye equally useful hai. Har chapter ke answers accurate, verified aur student-friendly format me diye gaye hain.
Isliye agar aap NCERT Solutions Class 7 Hindi and English Medium search kar rahe hain, to yahan aapko complete chapter-wise solutions milenge jo aapki academic journey ko strong aur confident banayenge.