Chapter 20 - Man and Biology - Test 2

Biology Class 10
1. Large amount of acid rain may cause death of fishes in lakes and rivers.

1) True   2) False
2. The warming of earth surface is called Green House Effect.

1) True   2) False
3. Oxygen is the upper atmosphere forms ozone that forms a layer over the earth.

1) False   2) True
4. Untreated sewage is source of germs causing cholera and typhoid.

1) False   2) True
5. Carbon dioxide combine with haemoglobin to reduce oxygen in blood

1) True   2) False
6. Any organism which acquires a foreign gene is called:

1) Parasite   2) Transgenic organism

3) Antibody   4) Pathogen
Biology Class 10
7. By the half of genetic engineering, most substance produce:

1) Fructose   2) Insulin

3) Glycogen   4) Glucose
Biology Class 10
8. Genetic engineering is of great importance and has application in:

1) All   2) Agriculture

3) Chemical & drug industries   4) Medicine
Biology Class 10
9. The use of biotechnology is production of:

1) Fertilizers   2) Single cell protein

3) All   4) Antibiotics
Biology Class 10
10. In baking industry brewing is carried out by:

1) Bacteria   2) Cyanobacteria
3) Protozoans   4) Yeast
Biology Class 10
11. Nitrogen is an important of:

1) Protein   2) Fats

3) Carbohydrate   4) None of the above
Biology Class 10
12. Nitrogen fixing bacteria live inside the roots of:

1) Flowering plants   2) Non-flowering plants

3) Rhizopus   4) Leguminous plants
Biology Class 10
13. Paper industry is also dependent upon:

1) Wood   2) Glucose

3) Plastics   4) Cellulose
Biology Class 10
14. Sericulture is the production of:

1) Cotton   2) Silk

3) Cellulose   4) Glucose
Biology Class 10
15. Domesticating the honey bee for the honey production is known as:

1) Sericulture   2) Agriculture

3) Aquacultures   4) Apiculture
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