• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar
  • Skip to footer

CBSE Tuts

CBSE Maths notes, CBSE physics notes, CBSE chemistry notes

  • NCERT Solutions
    • NCERT Solutions for Class 12 English Flamingo and Vistas
    • NCERT Solutions for Class 11 English
    • NCERT Solutions for Class 11 Hindi
    • NCERT Solutions for Class 12 Hindi
    • NCERT Books Free Download
  • TS Grewal
    • TS Grewal Class 12 Accountancy Solutions
    • TS Grewal Class 11 Accountancy Solutions
  • CBSE Sample Papers
  • NCERT Exemplar Problems
  • English Grammar
    • Wordfeud Cheat
  • MCQ Questions

NCERT Solutions for Class 7 Science Chapter 10 Respiration in Organisms

NCERT Solutions for Class 7 Science Chapter 10 Respiration in Organisms are part of NCERT Solutions for Class 7 Science. Here we have given NCERT Solutions for Class 7 Science Chapter 10 Respiration in Organisms.

Board CBSE
Textbook NCERT
Class Class 7
Subject Science
Chapter Chapter 10
Chapter Name Respiration in Organisms
Number of Questions Solved 9
Category NCERT Solutions

NCERT Solutions for Class 7 Science Chapter 10 Respiration in Organisms

Question 1.
Why does an athlete breathe faster and deeper than usual after finishing the race?
Solution:
An athlete requires more energy during and after the race. Since demand for energy is high, so oxidation of food must be speeded up. This requires more oxygen to be supplied. This is why an athlete not only breathes fast but also takes deep breathes and thus inhales more oxygen.

Question 2.
List the similarities and differences between aerobic and anaerobic respiration.
Solution:
Similarities:

  1. Energy is released
  2. Carbon dioxide is produced.

Differences:

  1. Anaerobic respiration does not require oxygen while areobic respiration takes place in the presence of oxygen.
  2. Glucose is completely broken down in aerobic respiration but not in anaerobic respiration.

Question 3.
Why do we often sneeze when we inhale a lot of dust-laden air?
Solution:
When we inhale dust particles, pollens, etc., the particles get trapped in the hair present in our nasal cavity. However, sometimes these particles may pass the hair in the nasal cavity, where they irritate the lining of the cavity, as a result of which we sneeze. Sneezing expels these foreign particles from the inhaled air and dust-free, clean air enters our body.

Question 4.
Take three test-tubes. Fill 1/3 rd of each with water. Label them A, B and C. Keep a snail in the 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?
Solution:
Test-tube A will have the highest concentration of CO2 because a snail will tape in oxygen and gives out CO2. In test-tube B and C, the CO2 will be utilized by the water plant for synthesizing food, and hence there will be less concentration of CO2 in there.

Question 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 accumulation 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

(d) During exhalation, the ribs
(i) move outwards
(ii) move downwards
(iii) move upwards
(iv) do not move at all
Solution:
(a)-(iii)
(b)-(ii)
(c)-(ii)
(d)-(ii).

Question 6.
Match the items in Column I with those in Column II:

Column I 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
(vii) Tracheae

Solution:
(a)-(iii)
(b)-(iv)
(c)-(i)
(d)-(v)
(e)-(ii)
(f)-(vi).

Question 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. (T/F)
  2. Plants carry out photosynthesis only during the day and respiration only at night. (T/F)
  3. Frogs breathe through their skins as well as their lungs. (T/F)
  4. The fishes have lungs for respiration.(T/F)
  5. The size of the chest cavity increases during inhalation. (T/F)

Solution:

  1. F
  2. F
  3. T
  4. F
  5. T.

Question 8.
Given below is a square of letters in which different words related to respiration in organisms are hidden. These words may be present in any direction—upwards, downwards, or along the diagonals. Find the words for your respiratory system. Clues about those words are given below the square.
NCERT Solutions for Class 7 Science Chapter 10 Respiration in Organisms image 1

  1. The air tubes of insects
  2. Skeletal structures surrounding the chest cavity
  3. The muscular floor of the chest cavity
  4. Tiny pores on the surface of the leaf
  5. Small openings on the sides of the body of an insect
  6. The respiratory organs of human beings
  7. The openings through which we inhale
  8. An anaerobic organism
  9. An organism with a tracheal system

Solution:
NCERT Solutions for Class 7 Science Chapter 10 Respiration in Organisms image 2

Question 9.
The mountaineers carry oxygen with them because :
(a) At an altitude of more than 5 km, there is no air.
(b) The amount of air available to a person is less than that available on the ground.
(c) The temperature of the air is higher than that on the ground.
(d) The pressure of air is higher than that on the ground.
Solution:
(b) The amount of air available to a person is less than that available on the ground.

NCERT Solutions for Class 7 Science

  • Chapter 1 Nutrition in Plants
  • Chapter 2 Nutrition in Animals
  • Chapter 3 Fibre to Fabric
  • Chapter 4 Heat
  • Chapter 5 Acids, Bases and Salts
  • Chapter 6 Physical and Chemical Changes
  • Chapter 7 Weather, Climate and Adaptations of Animals to Climate
  • Chapter 8 Winds, Storms and Cyclones
  • Chapter 9 Soil
  • Chapter 10 Respiration in Organisms
  • Chapter 11 Transportation in Animals and Plants
  • Chapter 12 Reproduction in Plants
  • Chapter 13 Motion and Time
  • Chapter 14 Electric Current and its Effects
  • Chapter 15 Light
  • Chapter 16 Water A Precious Resource
  • Chapter 17 Forests: Our Lifeline
  • Chapter 18 Wastewater Story

We hope the NCERT Solutions for Class 7 Science Chapter 10 Respiration in Organisms help you. If you have any query regarding NCERT Solutions for Class 7 Science Chapter 10 Respiration in Organisms, drop a comment below and we will get back to you at the earliest.

Primary Sidebar

NCERT Exemplar problems With Solutions CBSE Previous Year Questions with Solutoins CBSE Sample Papers
  • The Summer Of The Beautiful White Horse Answers
  • Job Application Letter class 12 Samples
  • Science Lab Manual Class 9
  • Letter to The Editor Class 12 Samples
  • Unseen Passage For Class 6 Answers
  • NCERT Solutions for Class 12 Hindi Core
  • Invitation and Replies Class 12 Examples
  • Advertisement Writing Class 11 Examples
  • Lab Manual Class 10 Science

Recent Posts

  • Understanding Diversity Question Answer Class 6 Social Science Civics Chapter 1 NCERT Solutions
  • Our Changing Earth Question Answer Class 7 Social Science Geography Chapter 3 NCERT Solutions
  • Inside Our Earth Question Answer Class 7 Social Science Geography Chapter 2 NCERT Solutions
  • Rulers and Buildings Question Answer Class 7 Social Science History Chapter 5 NCERT Solutions
  • On Equality Question Answer Class 7 Social Science Civics Chapter 1 NCERT Solutions
  • Role of the Government in Health Question Answer Class 7 Social Science Civics Chapter 2 NCERT Solutions
  • Vital Villages, Thriving Towns Question Answer Class 6 Social Science History Chapter 9 NCERT Solutions
  • New Empires and Kingdoms Question Answer Class 6 Social Science History Chapter 11 NCERT Solutions
  • The Delhi Sultans Question Answer Class 7 Social Science History Chapter 3 NCERT Solutions
  • The Mughal Empire Question Answer Class 7 Social Science History Chapter 4 NCERT Solutions
  • India: Climate Vegetation and Wildlife Question Answer Class 6 Social Science Geography Chapter 8 NCERT Solutions
  • Traders, Kings and Pilgrims Question Answer Class 6 Social Science History Chapter 10 NCERT Solutions
  • Environment Question Answer Class 7 Social Science Geography Chapter 1 NCERT Solutions
  • Understanding Advertising Question Answer Class 7 Social Science Civics Chapter 7 NCERT Solutions
  • The Making of Regional Cultures Question Answer Class 7 Social Science History Chapter 9 NCERT Solutions

Footer

Maths NCERT Solutions

NCERT Solutions for Class 12 Maths
NCERT Solutions for Class 11 Maths
NCERT Solutions for Class 10 Maths
NCERT Solutions for Class 9 Maths
NCERT Solutions for Class 8 Maths
NCERT Solutions for Class 7 Maths
NCERT Solutions for Class 6 Maths

SCIENCE NCERT SOLUTIONS

NCERT Solutions for Class 12 Physics
NCERT Solutions for Class 12 Chemistry
NCERT Solutions for Class 11 Physics
NCERT Solutions for Class 11 Chemistry
NCERT Solutions for Class 10 Science
NCERT Solutions for Class 9 Science
NCERT Solutions for Class 7 Science
MCQ Questions NCERT Solutions
CBSE Sample Papers
NCERT Exemplar Solutions LCM and GCF Calculator
TS Grewal Accountancy Class 12 Solutions
TS Grewal Accountancy Class 11 Solutions