1. Which of the following organs has no role in digestion of food?
A. Pancreas
B. Spleen
C. Liver
D. Salivary glands
2. By which one of the following processes do mineral salts pass through the cells of the cortex across the vacuoles?
A. Osmosis
B. Active transport
C. Diffusion
D. Capillarity
3. Which one of the following pairs of organs is important in the digestion of fats?
A. Stomach and liver
B. Pancreas and stomach
C. Liver and pancreas
D. Stomach and mouth
4. Isotonic solutions are the ones whose concentration is
A. Weaker than the cell sap of a cell placed in it
B. The same as that of the cell sap of a cell placed in it
C. Differ slightly
D. Higher than the cells surrounding it
5. The force which holds water molecule together in a continuous column is
A. Diffusion
B. Osmosis
C. Surface tension
D. Cohesion
6. An endosperm is formed in plants when the second male nucleus fuses the
A. Egg nucleus
B. Polar nuclei
C. Antipodal nuclei
D. Embryo sac
7. Which one of the following characteristics may be used to determine whether leaves are compound OR simple?
A. Nature of margin
B. Number of leaflets
C. Type of venation
D. Presence of leaflets
8. The following events occur during germination of a bean seed.
(i) Development of lateral roots.
(ii) Growth of radicle out of the testa.
(iii) Hypocotyl pulls cotyledons out of soil.
(iv) Growth of root hairs. Which one of the following gives the correct sequence of the events?
A. (i), (ii), (iii) and (iv)
B. (ii), (iii), (iv) and (i)
C. (ii), (iv), (i) and (iii)
D. (ii), (i), (iii) and (iv)
9. Which of the following conditions increase the rate of transpiration?
A. High temperatures, windy, and high humidity
B. Low temperatures, windy and high humidity
C. High temperatures, low humidity and windy
D. Low temperatures, low humidity and still air
10. Which one of the following shows the correct order of cell organization?
A. Organism system organ
B. Tissue organ organism
C. Organ tissue system
D. Tissue organ system
11. What are the products of the hydrolysis of lactose?
A. Galactose and fructose
B. Glucose and galactose
C. Glucose
D. Glucose and fructose
12. Which of the following is true about arteries? They—————
A. Carry blood away from the heart
B. Carry deoxygenated blood
C. Carry oxygenated blood
D. Possess valves along their length
13. Which one the following features is typical to class insecta?
A. Jointed legs
B. Three body parts
C. Complete metamorphosis
D. Exoskeleton
14. A flaccid cell
A. Is one that cannot allow in any more water
B. Is one that has lost strength
C. Is one that has lost its vacuole
D. Is one that is filled with water
15. The term destarching refers
A. Removing starch from plant leaves by exposing leaves them to light
B. Removing starch from plant leaves by putting leaves into darkness
C. helping plant leaves to make starch by exposure to light
D. Boling plant leaves in alcohol
16. Translocation means……
A. Absorption of food in plants
B. Transpotation of water in plants
C. Transpotation of food in plants
D. Loss of water in plants
17. The type of erosion which involves loss of little amount of water with small trenches is called
A. Rill erosion
B. Gulley erosion
C. Sheet erosion
D. Splash erosion
18. A plant tissue which is tubular, open-ended, lignified and thickened walls is:
A. Tracheid
B. Xylem vessel
C. Parenchyma
D. Sieve tube
19. Which one of the following parts of the alimentary canal works on fats chemically?
A. Mouth
B. Stomach
C. Duodenum
D. Colon
20. Which one of the following groups contains the largest number of organisms?
A. Order
B. Species
C. Class
D. Phylum
