- Which of the following structures will NOT be found in the nucleus of a cell?
- A. DNA
- B. Nucleolus
- C. Lysosome
- D. Centriole
2. An example of organ level of organization is _______
- A. bird
- B. kidney
- C. spermatozoon
- D. xylem
3. A structural similarity between Paramecium and Amoeba is the presence of______
- A. one food vacuole
- B. two contractile vacuoles
- C. two nuclei
- D. one gullet
4. 
The classes of plants the root systems in diagrams I and II above represent respectively are______________
- A. Dicotyledoneae and Monocotyledoneae
- B. Monocotyledoneae and Dicotyledoneae
- C. Dicotyledoneae and Dicotyledoncae
- D. Monocotyledoneae and Monocotyledoneae
5. The diagram above is an illustration of a stage in a biological process. Study it and answer this question
What stage of cell division is illustrated in the diagram?
- A. Prophase
- B. Metaphase
- C. Anaphase
- D. Telophase
6. The part labelled I is the________
- A. centromere
- B. spindle fibre
- C. centriole
- D. chiasmata
7. The rate of diffusion of molecules between two media will be higher if_________
- A. the difference in concentration of the two media is low
- B. the difference in concentration of the two media is negligible
- C. the difference in concentration of the two media is high
- D. there is no difference in the concentration of the two media
8. Anaerobic respiration in the organism illustrated in the diagram above produces carbon dioxide and________
- A. ethanol
- B. water
- C. oxygen
- D. glucose
9. Underground storage stems which grow horizontally in the soil are_______
- A. bulbs
- B. runners
- C. rhizomes
- D. corms
10. Muscle fatigue in the body of an athlete is due to__________
- A. low pH
- B. high oxygen content
- C. accumulation of lactic acid
- D. accumulation of carbonic acid
11. The heart can beat continuously without being fatigued because it is composed of________
- A. skeletal muscles
- B. smooth muscles
- C. cardiac muscles
- D. renal muscles
12. The products of tissue respiration are_________
- A. glucose, oxygen, and water
- B. oxygen, water, and energy
- C. glucose, carbon dioxide, and energy
- D. water, carbon dioxide, and energy
13. Excretory products in plants responsible for the discoloration of flowers are called__________
- A. alkaloids
- B. tannins
- C. anthocyanins
- D. resins
14. The process of maintaining a steady internal environment is known as__________
- A. osmoregulation
- B. equilibration
- C. homeostasis
- D. plasmolysis
15. Which of the following statements is not true about hormones?
- A. Their responses are voluntary
- B. They may affect more than one target organ
- C. They are chemical messengers in animals
- D. They are transported by the blood to the target organs
