Class 10 Biology Chapter 6 Nutrition Life Processes
Class 10 Biology Chapter 6 Nutrition Life Processes
Question 1 Which movements are not visible to the eye?
Answer: Motions on a very fine scale are not visible to the eye.
Question 2 Is there actually molecular motion inside the virus?
Answer No, there is actually no molecular motion inside the virus.
Question 3 For how long does molecular motion take place inside the virus?
Answer: Molecular movement inside the virus does not occur until it infects a cell.
Question 4 What are tissues?
A group of cells specialized for a particular function is called a tissue.
Question 5 What should be the maintenance work of living beings?
The maintenance work of the living beings should be continuous.
Question 6 What is a biological process?
Answer: All those episodes which together do the work of maintenance are called biological processes.
Question 7 Which process is required to prevent damage and breakage in organisms?
Maintenance procedures are required to prevent damage and wear and tear in living organisms.
Question 8 What is required for the maintenance process?
Energy is required for the maintenance process.
Question 9 What do we call the source of energy required by the body?
Answer: The source of energy required by the body is called food.
Question 10 What is the process of taking food inside the body called?
Answer: The process of taking food inside the body is called nutrition.
Question 11 On what does life on earth depend?
Answer: Life on earth is dependent on carbon based molecules.
Question 12 Why do different organisms use different types of nutritional processes?
Answer: According to the complexity of the carbon sources, different organisms use different types of nutritional process.
Question 13 What are oxidation-reduction reactions?
Ans Oxidation – Reduction reactions are some of the common chemical methods for the dissolution of molecules.
Question 14 What is respiration?
Answer: The taking of oxygen from outside the body and its use in the breakdown of food sources according to the cellular requirement is called respiration.
Question 15 The entire surface of which type of organism is in contact with the environment?
Answer The entire surface of a unicellular organism is in contact with the environment.
Question 16 Why does a unicellular organism not require any special organ for the exchange of gases and for the removal of waste materials?
Answer: Because the entire surface of a unicellular organism is in contact with the environment.
Question 17 Why cannot all cells in multicellular organisms be in direct contact with their surrounding environment?
Answer: In multicellular organisms, the body size is large and the physical design becomes more complex.
Question 18 Can simple diffusion satisfy the needs of all cells?
Answer: No, simple diffusion can satisfy the needs of all cells.
Question 19 Whose function is the intake of food and oxygen?
Answer: Intake of food and oxygen is the function of specialized tissues.
Question 20 What is needed to carry food and oxygen from one place to another?
A transport system is needed to carry food and oxygen from one place to another.
Question 21 What is a waste product?
The substances formed as a result of the reactions taking place in the cells of the body which are not only unusable but can also be harmful are called waste products.
Question 22 Why is it necessary to remove waste products from the body?
Answer Because waste products are not only unusable for the body but can also be harmful.
Question 23 What is the removal of waste products from the body called?
The removal of waste products from the body is called excretion.
Nutrition
Question 24 How do autotrophs obtain substances for energy?
Question 25 From which type of substances do animals get food (energy)?
Question 26 Why is it necessary to break down complex substances into simpler substances?
Question 27 What is used to break down complex substances into simpler substances?
Question 28 What are enzymes called?
Question 29 On what do heterotrophs depend for survival?
Question 30 How is the carbon and energy requirement of an autotrophic organism met?
Question 31 What is the process of photosynthesis?
Question 32 Which substances are used in photosynthesis?
Question 33 Carbohydrates are used in what?