Life Process MCQ Questions and Answers for Practice

1. ...............are the vessels which carryblood away from the heart to various organs of the body

1. Veins
2. spines
3. arteries
4. none of the above

2. ............takes in food using temporary finger-like extensions of the cell surface

1. Amoeba
2. green plants
3. tape worms
4. none of the above

3. Alternate contraction and relaxation of the alimentary canal is called

1. Peristalsis
2. Ingestion
3. Deglutition
4. None of these

4. Amphibians or many reptiles have....................chambered hearts

1. One
2. two
3. three
4. four

5. ATP can be used in the cells for the

1. Contraction of muscles
2. protein synthesis
3. conduction of nervous impulses
4. all of the above

6. Blood pressure is measured with an instrument called

1. Manometer
2. sphygmomanometer
3. hydrometer
4. anemometer

7. Breaking down of glucose in the presence of oxygen produces

1. Carbon dioxide
2. water
3. energy
4. all of the above

8. Carbon and energy requirements of the autotrophic organism are fulfilled by

1. enzymes
2. photosynthesis
3. bacteria
4. none of the above

9. Chlorophyll is contained in

1. leaf
2. stem
3. roots
4. both A and B

10. Conversion of large fat droplets into smaller droplets are

1. Anabolism
2. Neutralisation
3. Assimilation
4. Emulsification

11. Digestion is extracellular in

1. Animals
2. Human
3. Amoeba
4. All the above

12. Each kidney has large numbers of filtration units called

1. Nephrons
2. glomerulus
3. renal vein
4. none of the above

13. Example(s) of some organisms which derive nutrition from plants or animals without killing them

1. cuscuta
2. ticks
3. leeches
4. all of the above

14. Examples of some organism(s) break-down the food material outside the body and then absorb it

1. fungi
2. yeast
3. mushrooms
4. all of the above

15. Following are autotrophs

1. Green plants
2. Some bacteria
3. Enzymes
4. Both A and B