General Competition Exam - Biology Quiz

1. Chemically, vitamin C is —

(A) Tartaric acid

(B) Citric acid

(C) Ascorbic acid

(D) Acetic acid

2. Proteins give a yellow colouration with-

(A) Phosphoric acid

(B) Oxalic acid

(C) Hydrochloric acid

(D) Nitric acid

3. Which of the following can be used as an anaesthetic ?

(A) Chlorine

(B) Nitrous oxide

(C) Helium

(D) Carbon dioxide

4. The most abundant source of iron is-

(A) Beans

(B) Eggs

(C) Green vegetables

(D) Milk

5. Root nodules are formed by the symbiotic relationship between a leguminous plant and 

(A) Green alga

(B) Rhizobium bacterium

(C) Retrovirus

(D) Fungus

6.The bacterium Escherichia coli is chiefly found in-

(A) Root modules of leguminous plant

(B) Human intestine

(C) Higher plants

(D) All of the above

7. If excess fertilizer is applied to a plant without water, the plant — 

(A) Will die due to plasmolysis

(B) Will show stunted growth

(C) Will remain unaffected

(D) Will develop modifications

8. Energy crops are source of¬

(A) Alcohol fuels

(B) Coal energy 

(C) Bio-fuels

(D) None of the above

9. Commercial acetic acid is used in the preparation of —

(A) Alcohol

(B) Wine

(C) Vinegar 

(D) Mead

10. Which one of the following pairs is correctly matched?
(A) Tetanus-BCG                    
(B) tuberculosis-ATS          
(C) Malaria-Chloroquin       

(D) Scurvy-Thiamin

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