General Science and Ability CSS-2003

EVERYDAY SCIENCE

• Choose the best option/answer

1. Enzymes are organic catalysts made up of:

(a) Carbohydrate              (b) Proteins                        (c) Fats                               (d) Nucleic Acid

2. A nanometre is:

(a) 10^-3 meters                   (b) 10^-6 meters                   (c) 10^-9 meters                  (d) 10-12 meter

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) Mature pollen grain

8. ADH is a hormone 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) I                                      (b) 2                                      (c) 5                                     (d) 14

10. Permian Period belongs to:

(a) Palaeozoic era           (b) Mesozoic era               (c) Cainozoic era               (d) Precambrian era

• Name the following:
• The instrument used for the measurement of blood pressure. (Sphygmomanometer)
• A mammal which can fly. (Bat)
• A disease which is more common in men than in women and is hereditary in character. (Colour Blindness)
• One endangered animal species of Pakistan. (Snow leopard/ Blind Dolphin)
• An ore of mercury. (Cinnabar)
• A Cyanobacterium. (Blue green algae)
• A hormone secreted by pancreas. (Insulin)
• The nuclear reaction taking place on the surface of sun (Fusion reaction)
• The scientist who discovered Sulfuric Acid. (Jabir bin Hayan)
• The constituent elements of brass. (Copper and Zinc)
• Fill in the blanks.
• The conversion of non-diffusible substances into diffusible ones by the action of enzymes is called
  ______ . (Digestion)
• Diamond is the purest naturally occurring crystalline form of___ . (Carbon)
• Caustic soda is extensively used for making_____ . (Soap)
• When a person can see nearer objects but not the distant ones he is said to be suffering from . (Nearsightedness)
• Marble is___ (Metamorphic)
• Curie is a unit of . (Radioactivity)
• The brown colour of rust is because of____ . (Oxidation)
• The movement of food through esophagus is by the muscular action known as. (Peristalsis)
• Granite is a form of (Igneous rock)
• is the main chemical substance in the plant cell wall. (Cellulose)
• ___ was first discovered by Robert Brown. (Cell Nucleus)
• Which of the following statements are true and which are false:
• Right kidney in man is slightly lower in position than the left kidney. (True)
• Light is not visible. (False)
• Steel is more elastic than rubber (True)
• Pitch of man’s voice is greater than that of woman. (False)
• Diastolic blood pressure is greater than systolic blood pressure. (False)
• Base metal can be converted into gold by heating. (False)
• Guava contains more vitamins C than orange. (True)
• A light year is a unit of time. (False)
• Mercury is heavier than lead. (True)
• Movement of tectonic plates may cause eruption of a volcano. (True)