10th CBSE Life processes important questions
Important MCQs on Nutrition In Plants & Animals (Life Processes)
Prepare for your Class 10 CBSE Science Board Exams with a well-structured set of Life Processes – Nutrition questions based on the NCERT Exemplar pattern. This blog is designed to help you revise important concepts, improve accuracy, and build confidence before your exams.
Why this is important for Class 10 students
The topic of Nutrition is a key part of the Life Processes chapter in the Class 10 Science syllabus. Mastering it not only helps you score better in board exams but also builds a strong foundation for competitive exams like NTSE and Olympiads.
Highlights of this blog:
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Covers important Nutrition concepts from Class 10 Life Processes
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Based on NCERT Exemplar question style
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Useful for CBSE, ICSE, and State Board students
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Helps in last-minute revision for board exams
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Boosts conceptual clarity and answer accuracy
Who can use this resource?
These questions are perfect for:
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Class 10 CBSE students preparing for the 2025 board exams
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Students of ICSE and State Boards with a similar syllabus
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Competitive exam aspirants looking for topic-wise practice
How to use this for preparation
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Go through the uploaded questions carefully.
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Attempt them without looking at the answers.
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Check your responses and review concepts you missed.
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Repeat the practice until you can answer confidently
Final Tip:
Consistent practice is the key to scoring well in Science. Use this blog to test your knowledge and identify areas that need improvement. For complete preparation, explore our other Class 10 Science
MCQs and Important Questions.
1. Which of the following has the longest small intestine?
(a) carnivore (b) omnivore (c) herbivore (d) autotroph
2. The process of obtaining food by Amoeba is known as:
(a) dialysis (b) cytokinesis (c) phagocytosis (d) amoebiasis
3. The organism having parasitic mode of nutrition is:
(a) Penicillium (b) Plasmodium (c) Paramecium (d) Parrot
4. One of the following organisms has a saprophytic mode of nutrition. This organism is:
(a) mushroom (b) malarial parasite (c) leech (d) lice
5. The length of small intestine in a human adult is about:
(a) 4.5 m (b) 1.5 m (c) 3.5 m (d) 6.5 m
6. The process of digestion of food in humans begins in:
(a) stomach (b) food pipe (c) mouth (d) small intestine
7. The process of digestion in humans is completed in:
(a) oesophagus (b) small intestine (c) stomach (d) large intestine
8. In human digestive system, bile is secreted by:
(a) kidneys (b) stomach (c) pancreas (d) liver
9. Two of the following organisms have a holozoic mode of nutrition. These are:
(a) Paramecium and Plasmodium (b) Paramecium and Parasite
(c) Parakeet and Paramecium (d) Plasmodium and Parakeet
10. The autotrophic mode of nutrition requires:
(a) carbon dioxide and water (b) chlorophyll (c) sunlight (d) all of the above
11. The correct order of steps occurring in nutrition in animals is:
(a) Ingestion → Absorption → Digestion → Assimilation → Egestion
(b) Ingestion → Digestion → Assimilation → Absorption → Egestion
(c) Ingestion → Digestion → Absorption → Assimilation → Egestion
(d) Ingestion → Assimilation → Digestion → Absorption → Egestion
12. In human digestive system, the enzymes pepsin and trypsin are secreted respectively by:
(a) pancreas and liver (b) stomach and salivary glands
(c) pancreas and gall bladder (d) stomach and pancreas
13. When carrying out the starch test on a leaf, why is it important to boil the leaf in alcohol?
(a) to dissolve the waxy cuticle (b) to make the cells more permeable to iodine solution
(c) to remove the chlorophyll (d) to stop chemical reactions in the cells
14. Pancreatic juice contains enzymes which digest:
(a) proteins and carbohydrates only (b) proteins and fats only
(c) fats and carbohydrates only (d) proteins, fats and carbohydrates
15. Which of the following is the correct statement regarding bile?
(a) secreted by bile duct and stored in liver
(b) secreted by gall bladder and stored in liver
(c) secreted by liver and stored in bile duct
(d) secreted by liver and stored in gall bladder
16. Where are proteins first digested in the alimentary canal?
(a) small intestine (b) oesophagus (c) mouth (d) stomach
17. The inner lining of stomach is protected by one of the following from the harmful effect of hydrochloric acid. This is:
(a) pepsin (b) mucus (c) bile (d) salivary amylase
18. Which part of alimentary canal receives bile from the liver?
(a) oesophagus (b) small intestine (c) stomach (d) large intestine
19. Which of the following component of our food is digested by an enzyme which is present in saliva as well as in pancreatic juice?
(a) proteins (b) fat (c) minerals (d) carbohydrate
20. Where does photosynthesis take place in a plant cell?
A. Mitochondria
B. Chloroplast
C. Cytoplasm
D. Protoplasm
1.In addition to carbon dioxide and water, state two other conditions necessary for the process of photosynthesis to take place.
2.Apart from sunlight and chlorophyll, what other things are required to make food by photosynthesis?
(a) Name a gas used in photosynthesis.
(b) Name a gas produced in photosynthesis.
3.The leaves of a plant first prepare food A by photosynthesis. Food A then gets converted into food B. What are A and B?
4.Which substance is used to remove chlorophyll from a green leaf during photosynthesis experiments?
5.Why do we boil the leaf in alcohol when we are testing it for starch?
(a) Name the pigment in leaves which absorbs sunlight energy.
(b) What is the colour of this pigment?
6.Name the pigment which can absorb solar energy.
7. Name the organelle of plant cells in which photosynthesis occurs.
8.Apart from carbon dioxide and water, name four other raw materials which are needed by the plants.
9. Where is chlorophyll mainly present in a plant?
10.What is the name of those cells in the leaf of a plant which control the opening and closing of stomata?
11. Name an animal whose process of obtaining food is called phagocytosis.
12.All the animals can be divided into three groups on the basis of their eating habits. Name the three groups.
13. What is the scientific name of the animals which are:
(i) Only meat eaters?
(ii) Only plant eaters?
(iii) Both plant and meat eaters?
14.Name the green pigment present in the leaves of a plant.
15.Arrange the following processes involved in the nutrition in animals in the correct order (in which they take place):
Assimilation, Egestion, Ingestion, Absorption, Digestion
16.How does Amoeba engulf the food particle?
17. What substances enter into the food vacuole in Amoeba to break down the food?
18.From which part of the body, undigested food is egested in Amoeba?
19.Name a unicellular animal which uses cilia to move food particles into its mouth.
20.Name the enzyme present in human saliva. What type of food material is digested by this enzyme?
Which of the organs perform the following functions in humans?
(i) Absorption of food
(ii) Absorption of water
21.What moves the food in the digestive organs?
22.What is the other name for food pipe?
23.What substance is mixed with food in the mouth during chewing by the teeth?
24.What is the name of tiny projections on the inner surface of small intestine which help in absorbing the digested food?
25.In which part of the digestive system is water absorbed?
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