Advertisements
Online Mock Tests
Chapters
2: Nutrition in Animals
3: Heat
4: Acids, Bases and Salts
5: Physical and Chemical Changes
▶ 6: Respiration in Organisms
7: Transportation in Animals and Plants
8: Reproduction in Plants
9: Motion and Time
10: Electric Current and Its Effects
11: Light
12: Forests: Our Lifeline
13: Wastewater Story
![NCERT solutions for Science [English] Class 7 chapter 6 - Respiration in Organisms - Shaalaa.com](/images/science-english-class-7_6:325736d0fe154a27901a6745284d30d9.jpg "NCERT solutions for Science [English] Class 7 chapter 6 - Respiration in Organisms")
Advertisements
Solutions for Chapter 6: Respiration in Organisms
Below listed, you can find solutions for Chapter 6 of CBSE NCERT for Science [English] Class 7.
NCERT solutions for Science [English] Class 7 6 Respiration in Organisms Exercises [Pages 67 - 68]
Why does an athlete breathe faster and deeper than usual after finishing the race?
List the similarities between aerobic and anaerobic respiration.
List the differences between aerobic and anaerobic respiration.
Why do we often sneeze when we inhale a lot of dust-laden air?
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?
Choose the correct answer:
In cockroaches, air enters the body through ______.
lungs
gills
spiracles
skin
During heavy exercise, we get cramps in the legs due to the accumulation of ______.
carbon dioxide
lactic acid
alcohol
water
Normal range of breathing rate per minute in an average adult person at rest is ______.
9 – 12
15 – 18
21 – 24
30 – 33
During exhalation, the ribs ______.
move outwards
move downwards
move upwards
do not move at all
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 |
Choose the true and false statement from the following statements:
During heavy exercise, the breathing rate of a person slows down.
True
False
Plants carry out photosynthesis only during the day and respiration only at night.
True
False
Frogs breathe through their skins as well as their lungs.
True
False
The fishes have lungs for respiration.
True
False
The size of the chest cavity increases during inhalation.
True
False
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 those words are given below the square.
- The air tubes of insects
- Skeletal structures surrounding chest cavity
- Muscular floor of chest cavity
- Tiny pores on the surface of leaf
- Small openings on the sides of the body of an insect
- The respiratory organs of human beings
- The openings through which we inhale
- An anaerobic organism
- An organism with tracheal system
The mountaineers carry oxygen with them because ______.
At an altitude of more than 5 km, there is no air.
The amount of air available to a person is less than that available on the ground.
The temperature of air is higher than that on the ground.
The pressure of air is higher than that on the ground.
NCERT solutions for Science [English] Class 7 6 Respiration in Organisms Activities and Projects [Page 69]
Extended Learning — Activities and Projects
Observe fish in an aquarium. You will find flap like structures on both sides of their heads. These are flaps which cover the gills. These flaps open and close alternately. On the basis of these observations, explain the process of respiration in the fish.
Visit a local doctor. Learn about the harmful effects of smoking. You can also collect material on this topic from other sources. You can seek help of your teacher or parents. Find out the percentage of people of your area who smoke. If you have a smoker in your family, confront him with the material that you have collected.
Visit a doctor. Find out about artificial respiration. Ask the doctor:
- When does a person need artificial respiration?
- Does the person need to be kept on artificial respiration temporarily or permanently?
- From where can the person get supply of oxygen for artificial respiration?
Measure the breathing rate of the members of your family and some of your friends. Investigate:
- If the breathing rate of children is different from that of adults.
- If the breathing rate of males is different from that of females If there is a difference in any of these cases, try to find the reason.
Solutions for 6: Respiration in Organisms
NCERT solutions for Science [English] Class 7 chapter 6 - Respiration in Organisms
Shaalaa.com has the CBSE Mathematics Science [English] Class 7 CBSE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics Science [English] Class 7 CBSE 6 (Respiration in Organisms) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Science [English] Class 7 chapter 6 Respiration in Organisms are Respiration, Types of Respiration: Aerobic and Anaerobic Respiration, Mechanism of respiration-Breathing, Human Respiratory System, Breathing in Other Animals, Respiration in Plant, Respiration, Breathing Under Water, Respiration, Types of Respiration: Aerobic and Anaerobic Respiration, Mechanism of respiration-Breathing, Human Respiratory System, Breathing in Other Animals, Respiration in Plant, Respiration, Breathing Under Water.
Using NCERT Science [English] Class 7 solutions Respiration in Organisms exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE Science [English] Class 7 students prefer NCERT Textbook Solutions to score more in exams.
Get the free view of Chapter 6, Respiration in Organisms Science [English] Class 7 additional questions for Mathematics Science [English] Class 7 CBSE, and you can use Shaalaa.com to keep it handy for your exam preparation.
