Biology J

         1. Which one of the following disease is caused by bacteria?

(a)    Hepatitis- B

(b)   Poliomyelitis

(c)    Scabies

(d)   Tuberculosis

         2.  The complete digestion of carbohydrates, proteins and fats occurs in

(a)    Stomach

(b)   Liver

(c)    Small intestine

(d)   Large intestine

          3.  Night blindness can be corrected by the intake of  

(a)    Vitamin –A

(b)   Vitamin- B complex

(c)    Vitamin –C

(d)   Vitamin –D

                       4.  Which one of the following elements is essential for the transmission of nerve impulses in nerve fibres of human body?

(a)    Calcium

(b)   Iron

(c)    Sodium

(d)   Zinc

                       5. Use of tamarind juice as a part f our Neal helps

(a)    To prevent tooth decay

(b)   To take care of excess fluoride in drinking water

(c)    For easy digestion of food

(d)   To increase the strength of bones

                      6.  Which anemone the following produces seeds but not flower?

(a)    Cashew nut

(b)   Coffee

(c)    Grape

(d)   Pine

7. In humans, which one among the following with reference to breathing is correct?

(a)    During inhalation diaphragm relaxes

(b)   During exhalation, thorax cavity expands

(c)    During inhalation, intra-pleural  pressure becomes more negative

(d)   Unlike inhalation, normal exhalation is an active process

                   8.  Which among the following areas in conducive for well irrigation?

(a)    Rocky and uneven surface of peninsular India

(b)   Dry tracts of Rajasthan and Gujarat

(c)    Brackish groundwater region of Uttar Pradesh

(d)   Deltaic region of Mahanadi, Godavari and Krishna

9.  Match the following:

List I Cell organelles	List II Physiological phenomenon
A.      Mitochondria        B.      Chloroplast        C.      Stomata        D.      Cell wall	1.       Photosynthesis          2.       Transpiration          3 .       Respiration         4.       Osmosis

Codes

      A  B   C   D

(a)    1  3    4    2

(b)   3  1    2    4

(c)    1  3    2    4

(d)   3  1    4    2

10. What are the reasons for the people’s resistance to the introduction of Bt brinjal in India?

1.       Bt brinjal has been created by inserting a gene from a soil fungus its genome.

2.       The seeds of Bt brinjal are terminator seeds and therefore the farmers have to buy the seeds before every season from the seed companies.

3.       There is an apprehension that the consumption of Bt brinjal may have adverse impact on health.

4.       There is some concern that the introduction of Bt brinjal may have adverse effect on the biodiversity.

Select the correct answer using the does given below

(a)    1,  2  and 3

(b)   2  and 3

(c)    3  and 4

(d)   All of these

Answer:

1.       D

2.       B

3.       A

4.       A

5.       B

6.       D

7.       A

8.       B

9.       B

10.   C