Life Processes Objective Questions Class 10

Life Processes Objective Questions Class 10

1. An organism performs various processes for the living; we call these processes as:

Answer
Life processes.

2. Examples of life processes are:

Answer
Digestion, locomotion, reproduction, respiration.

3. Reproduction is not necessary for an organism for living then how is it a life process?

Answer
Reproduction maintains the continuity of life so it is also a life process.

4. How the exchange of gases occurs in unicellular organisms?

Answer
Unicellular organisms like an amoeba, paramecium exchanges gases through simple diffusion.

5. Organism who make food using the energy of sunlight is:

Answer
Green plants, cyanobacteria, and algae.

6. Organisms that prepare food by own are called:

Answer
Autotrophs

7. Process of conversion of carbon dioxide and water using the energy of sunlight by a plant is:

Answer
Photosynthesis

8. The pigment that traps the energy of sunlight is…

Answer
Chlorophyll.

9. Which color does the chlorophyll does not absorb…

Answer
Green

10. Which part of the plant contains chlorophyll?

Answer
Green parts of leaves

11. The plant stores the formed glucose in the form of…

Answer
Starch

12. Starch turns the iodine solution into…

Answer
Blue

13. A chlorophyll storing organelle is called

Answer
Chloroplast

14. Chemically, photosynthesis is a…

Answer
Redox reaction

15. Which part gets oxidised and which part is reduced during the photosynthesis?

Answer
Water transfers its electron to carbon dioxide, so water is oxidised while carbon dioxide is reduced.

16. Energy currency of a cell is…

Answer
ATP

17. Breakdown of glucose into carbon dioxide and water is

Answer
Cellular respiration

18. Cellular respiration occurs in..

Answer
Mitochondria of every cell.

18. Mitochondria are also called as…

Answer
The powerhouse of the cell

Fill in the Blanks

1. ………. muscles control the egestion of food from the stomach.
2. ………. is the longest tubular part of the digestive system.
3. Aerobic respiration takes place in the ………..
4. ………. is the site of the complete digestion of carbohydrates, proteins & fats.
5. Pyruvate breakdown in plants using oxygen takes place in the ………..
6. Rings of cartilage are present in the windpipe to ensure that the ………..
7. The blood has ………. cells _ _ _ _ _  plug the leakage in the vessels by helping to clot the blood at the point of injury.
8. ………. transports food produced during photosynthesis from the leaves to other parts of the plant.

Answer
Answers

1. sphincter
2. Small intestine
3. cytoplasm
4. Small intestine
5. mitochondria
6. air passage does not collapse
7. platelet
8. phloem

True  or false

Glomerulus acts as a sieve between waste and blood cells.[T/F]

Answer
Ans: T

Bowman’s capsule is a part of heart.[T/F]

Answer
Ans: F

The peristaltic movement of the esophagus pushes food into the alimentary canal. [T/F]

Answer
Ans: T

The aerobic process produces lesser energy than the anaerobic process produces. [T/F]

Answer
Ans: F

Before testing for starch in a leaf, chlorophyll should be removed as it interferes in the test due to its green color. [T/F]

Answer
Ans: T

The process in which the food is taken inside the body cells & used for energy, growth & repair is called egestion. [T/F]

Answer
Ans: F

The small intestine in a human adult is about 7 m. [T/F]

Answer
Ans: T

saliva as well as pancreatic juice both digests carbohydrate. [T/F]

Answer
Ans: T

Aerobic respiration in the mitochondria of cells. [T/F]

Answer
Ans: T

The respiration in plants happens at a fast rate whereas in animals it occurs at a much slower rate. [T/F] Ans: F

See Also:

MCQ Class 10

Life Processes Objective Questions Class 10

ref: Ncert.

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