Time Allowed: Three Hours Maximum Marks: 100
Note: Attempt any ten questions. All questions carry equalmarks.

1. Write short notes on any two of the following :
a). Microwave oven
b). Optic
c). Biotechnology:
2. Give names of the members of the solar system. Briefly write down main characteristics of : a). Mars b). venus

3. Name :

a). The instrument used for the measurement of blood pressure
b). A mammal, which can fly
c). A disease which is more common in men than in women and is hereditary in character
d). One endangered animal species of Pakistan
e). An ore of mercury
f). A cyanobacterium
g). A hormone secreted by pancreas
h). The nuclear reaction taking place on the surface of sun
i). The scientist who discovered sulfuric acid
j). The constituent elements of brass

4). What do the following scientific abbreviations stand for :

b). SARS
c). NTP
d). RQ
e). PVC
f). NPN
g). WAN
h). ECG
i). CPU
j). BCG

Q 5 : what are pesticides ? discuss their classification commonly in use with agronomists.

Q 6 : Define any five of the following :


c)Cross Pollination
e)Optical Illusion

g)Aqua Regia

Q. 7 : Which physical quantities are measured by the following units :

a) Pascal
b) Torr
c) Curie
d) Angstrom
e) Light year
f) Dioptre Lens
g) Horse power
h) Radian
i) Candela
j) Mole

Q. 8: Explain the structure of Earth and its Atmosphere

Q. 9 : Fill in the blanks :

a)The conversion of non-diffuisalbe substances into diffusible ones by the action of enzymes in called………..
b)Diamond is the purest naturally occurring crystalline form of…………
c)Caustic soda is extensively used for making ………….
d)When a person can see nearer objects but not the distant ones he is said to be suffering from …………..
e)Marble is --- rock
Curie is a unit of…………..
The brown colour of rust is because of…………….
The movement of food through esophagus is by the muscular action known as …………..
Granite is a form of ……………
…..………… is the main chemical substance in the plant cell wall :
………….... was first discovered by Robert Brown :

Q 10. What are Endocrine Glands ? Name any two . From which of the body are the following secreted :


Q. 11 Chose the best choice in the following statements :

1. Enzymes are organic catalysts made up of :
a. Carbohydrate b. Proteins c. Fats d. Nucleic Acid

2. A nanometer is:
a. 10 -3 meters b. 10-6 meters c. 10-9 meters d. 10-12 meters

3. The minimum speed of a Pentium II computer is :
a. 133 Mhz b. 233 Mhz c. 333 Mhz d. 433 Mhz

4. According to recent classifications the living organisms are divided into number of kingdoms :
a. 2 b. 3 c. 4 d. 5

5. Glycolysis is a process of:
a. Photosynthesis b. Reproduction c. Transpiration d. Respiration

6. The Unit that coordinates different devices of Computer system is :
a. ALU b. Register c. Control Unit d. Logical Instruction

7. Seed is technically:
a. Ripened Ovule b. Carpel c. Ripened Ovary d. Fully mature pollen grain

8. ADH is a harmone secreted by :
a. Anterior pituitary b. posterior pituitary c. Adrenal Cortex
d. Adrenal Medulla

9. The number of natural satellites orbiting around the Mars is:
a. 1 b. 2 c. 5 d. 14

10. Permian Period belongs to:
a. Palaeozoic era b. Mesozoic era c. Coenozoic era d. Precambrian era

Q . 12 Differentiate between the following pairs :
a). Lava and Magma

b). Ultraviolet and infrared

c). Fault and Fold

d). Caustic Soda and Caustic Potash

e). S.E.M. and T.E.M.

Q.13 which of the following statements are true and which are false

a) Right kidney in man is slightly lower in position than the left kidney
b) Light is not visible
c) Steel is more elastic than rubber
d) Pitch of man’s voice is greater than that of woman
e) Diastolic blood pressure is greater than systolic blood pressure
f) Base metal can be converted into gold by heating
g) Guava contains more vitamin C than orange
h) A light year is a unit of time
i) Mercury is heavier than lead
j) Movement of tectonic plates may cause eruption of a volcano

Q.14 Give scientific reason of the following :

a)Colour blindness is more common in men than in women
b)Light coloured clothes are generally worn in summer
c)A person is hurt