1.  Plants that grow in saline water are called

a

  halophytes

b

 hydrophytes

c

 mesophytes

d

 thallophytes

Answer & Explanation
Answer : Option A

2.  Night blindness is cause by lack of which vitamin?

a

  Vitamin A

b

 Vitamin B

c

 Vitamin C

d

 Vitamin D

Answer & Explanation
Answer : Option A

3.  Cancer cells are damaged by radiations while others are not because cancer cells are

a

  Starved

b

 Different in nature

c

 Undergoing rapid divisions

d

 None of these

Answer & Explanation
Answer : Option C

4.  10 gram of haemoglobin/100 gram of blood

a

  10 gram of haemoglobin/100 gram of blood

b

 14 gram of haemoglobin/100 gram of blood

c

 18 gram of haemoglobin/100 gram of blood

d

 24 gram of haemoglobin/100 gram of blood

Answer & Explanation
Answer : Option B

5.  The deficiency of which of the following leads to dental caries?

a

  Copper

b

 Iron

c

 Zinc

d

 Fluorine

Answer & Explanation
Answer : Option D

6.  Primary phloem develops from

a

  lateral meristem

b

 protoderm

c

 extrastelar cambium

d

 provascular tissue

Answer & Explanation
Answer : Option D

7.  Movement of cell against concentration gradient is called

a

  osmosis

b

 active transport

c

 diffusion

d

 passive transport

Answer & Explanation
Answer : Option B

8.  The genetic material in virus is

a

  DNA or RNA

b

 RNA only

c

 DNA only

d

 None of these

Answer & Explanation
Answer : Option A

9.  Lenticels are involved in

a

  Food transport

b

 Gaseous exchange

c

 Photosynthesis

d

 Transpiration

Answer & Explanation
Answer : Option B

10.  Largest flower found in the world is

a

  Raflesia

b

 Victoria

c

 Drosora

d

 Amerbel

Answer & Explanation
Answer : Option A

11.  Where did Darwin observe closely related species of finches and closely related species of tortorises?

a

  England

b

 Australia

c

 TheGalapagos Islands

d

 The Cape Verde Island

Answer & Explanation
Answer : Option C

12.  Quinine is extracted from the bark of :

a

  Eucalyptus

b

 Cadar

c

 Neem

d

 Cinchona

Answer & Explanation
Answer : Option D

13.  Nuclear membrane is absent in?

a

  Prokaryotes

b

 Eukaryotes

c

 Protozoans

d

 None of these

Answer & Explanation
Answer : Option A

14.  Plant development is influenced by

a

  quality of light only

b

 quality and quantity of light

c

 quality and duration of light

d

 quality, quantity and duration of light

Answer & Explanation
Answer : Option A

15.  Select the wrong statement:

a

  Anisogametes differ either in structure, function or behaviour

b

 In oomycetes female gamete is smaller and motile, while male gamete is larger and nonmotile

c

 Chlamydomonas exhibits both isogamy and anisogamy and fucus shows oogamy

d

 Isogametes are similar in structure, function and behaviour

Answer & Explanation
Answer : Option B

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