CBSE Class 10 Science Chapter 6 Life Processes Multiple Choice Questions with Answers. MCQ Class 10 Science Life Processes with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 10 Science Life Processes MCQs with Answers to know their preparation level.
Multiple Choice Questions - Set - 3
Question 1:
What is the percentage of the oxygen in the expired air when a person is resting:
(a) 12%
(b) 16%
(c) 20%
(d) 24%
Correct Answer – (B)
Question 2 :
Chemicals present in the tobacco smoke lead to the breakdown of the elastic tissue in the alveoli. Name this specific condition.
(a) Heart disease
(b) Emphysema
(c) Bronchitis
(d) Lung cancer
Correct Answer – (B)
Question 3 :
The image shows how Amoeba obtains nutrition.
How is this process advantageous for Amoeba?
(a) capturing of food takes less time
(b) complex food can be digested easily
(c) more amount of food can be consumed
(d) fast distribution of nutrition within the body
Correct Answer – (D)
Question 4 :
The characteristic processes observed in anaerobic respiration are
i) presence of oxygen
ii) release of carbon dioxide
iii) release of energy
iv) release of lactic acid
(a) i), ii) only
(b) i), ii), iii) only
(c) ii), iii), iv) only
(d) iv) only
Correct Answer – (C)
Question 5 :
Which of the following is the important characteristic of Emphysema:
(a) Destruction of the alveolar wall and air sacs in the lungs are damaged.
(b) Increase in the growth of the lung tissue.
(c) Inflammation in the wall of bronchi.
(d) Thickening of the artery walls of the lungs.
Correct Answer – (A)
Question 6 :
Digestion of food starts from which organ of the human digestive system?
(a) mouth due to the presence of saliva
(b) oesophagus that moves the food in gut
(c) that releases juices for fat breakdown
(d) which helps in mixing food with digestive juices
Correct Answer – (B)
Question 7 :
A plant gets rid of excess water through transpiration. Which is a method used by plants to get rid of solid waste products?
(a) shortening of stem
(b) dropping down of fruits
(c) shedding of yellow leaves
(d) expansion of roots into the soil
Correct Answer – (C)
Question 8 :
The opening and closing of the stomatal pore depends upon
(a) Oxygen
(b) temperature
(c) water in the guard cells
(d) concentration of CO2
Correct Answer – (C)
Question 9 :
The image shows the bread moulds on a bread
How do these fungi obtain nutrition?
(a) by eating the bread on which it is growing
(b) by using nutrients from the bread to prepare their own food
(c) by breaking down the nutrients of bread and then absorbing them
(d) by allowing other organisms to grow on the bread and then consuming them
Correct Answer – (C)
Question 10 :
Which of the equations show correct conversion of CO2 and H2O into carbohydrates in plants?
(a) 
(b) 
(c) 
(d) 
Correct Answer – (C)
- NCERT Solutions Class 10 Science Chapter 4 : Carbon And Its Compounds
- NCERT Solutions Class 10 Science Chapter 5 : Periodic Classification of Elements
- NCERT Solutions Class 10 Science Chapter 6 : Life Processes
- NCERT Solutions Class 10 Science Chapter 7 : Control and Coordination
- NCERT Solutions Class 10 Science Chapter 8 : How Do Organisms Reproduce?
- NCERT Solutions Class 10 Science Chapter 9 : Heredity and Evolution
- NCERT Solutions Class 10 Science Chapter 10 : Light Reflection and Refraction
- NCERT Solutions Class 10 Science Textbook Download
