Specific heat of vaporization of water is_____.

1. 1. 674 Kcal/kg
   2. 574 Kcal/kg
   3. 774 Kcal/kg
   4. 874 Kcal/kg

Panting is a representative of which mechanism?

1. 1. Pigmentation
   2. Evaporative cooling
   3. Respiration
   4. Excretion

Which of the following produces harmful gases_____.

1. 1. Plants
   2. Bacteria
   3. Motor Vehicles
   4. None of these

Which of the light is mainly absorbed by the plants?

1. 1. Orange
   2. Red
   3. Both a and b
   4. Green

Parkinson is a disease of_____.

1. 1. Lungs
   2. Eyes
   3. Bones
   4. Brain

In osmosis water molecules move from area of_____through semipermeable memberane?

1. 1. Lower solute concentration to higher solute concentration
   2. Higher solute concentration to lower solute concentration
   3. Lower solvent concentration to higher solvent concentration
   4. All of these

Cellulose is the major component of_____.

1. 1. Secondary wall
   2. Primary wall
   3. Middle lamella
   4. all of the above

Which of the following cytoskeletal fiber contain tubulin protein?

1. 1. One involved in internal cell motion
   2. One which help in assembly of spindles during mitosis
   3. One involved in maintenance of cell shape
   4. Both b & c

Sperms are _____in origin.

1. 1. Ectodermal
   2. Endodermal
   3. Mesodermal
   4. None of these

Which of the following component of chloroplast chlorophyll is arranged?

1. 1. Thylakoids
   2. Cell membrane
   3. Matrix
   4. Stroma