SEBA Class 7 Science Important Chapter 10 Respiration in Organisms

SEBA Class 7 Science Important Chapter 10 Respiration in Organisms Solutions English Medium As Per New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 7 General Science Additional Solutions and select need one. SCERT Important Solutions For Class 7 General Science Download PDF. Important Notes for Class 7 Science SCERT.

SEBA Class 7 Science Important Chapter 10 Respiration in Organisms

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Assam SEBA Board Class 7 Science Additional Question Answer are part of All Subject Solutions. Here we have given SCERT Class 7 General Science Important Notes for All Chapters, You can practice these here.

Respiration in Organisms

Chapter: 10

IMPORTANT QUESTION ANSWER

A. Very Short Type Questions & Answers:

1. What is respiration?

Ans: Respiration is the process by which organisms break down food (glucose) to release energy for various life activities.

2. What is aerobic respiration?

Ans: Aerobic respiration is the breakdown of food in the presence of oxygen to release energy, carbon dioxide, and water.

3. What is anaerobic respiration?

Ans: Anaerobic respiration is the breakdown of food without oxygen, producing less energy along with alcohol or lactic acid.

4. Name an organism that respires anaerobically.

Ans: Yeast respires anaerobically and produces alcohol and carbon dioxide.

5. What causes muscle cramps after heavy exercise?

Ans: Muscle cramps occur due to the accumulation of lactic acid formed during anaerobic respiration in muscle cells.

6. What is breathing rate?

Ans: Breathing rate is the number of times a person breathes in one minute, normally 15–18 times at rest.

7. What is the role of diaphragm in breathing?

Ans: The diaphragm helps in inhalation and exhalation by moving down and up to expand or contract the chest cavity.

8. Why do we sneeze?

Ans: We sneeze to expel unwanted particles like dust or pollen that irritate the nasal lining.

9. What is the function of spiracles in insects?

Ans: Spiracles are tiny openings in insects that allow air to enter into the tracheal tubes for respiration.

10. How do fish breathe in water?

Ans: Fish breathe through gills which absorb dissolved oxygen from water.

B. Fill in the Blanks:

1. The process of breakdown of food to release energy is called ________.

Ans: Respiration.

2. The organ used for breathing in fish is called ________.

Ans: Gills.

3. Muscle cramps are caused due to the accumulation of ________.

Ans: Lactic acid.

4. Plants take in oxygen through small pores called ________.

Ans: Stomata.

5. In insects, air enters the body through ________.

Ans: Spiracles.

 C. True or False:

1. Yeast performs aerobic respiration.

Ans: False.

2. The breathing rate remains constant all the time.

Ans: False.

3. Lungs are present in earthworms for respiration.

Ans: False.

4. During inhalation, the chest cavity increases in size.

Ans: True.

5. We breathe in oxygen and breathe out carbon dioxide.

Ans: True.