Question 1
State FOUR environmental problems that can be solved by studying biology
Answer
- Drought;
- Conservation of resources;
- Pollution;
- Food shortage;
- Conservation of resources;
- Pollution;
- Food shortage;
Question 2.
Aerobic break down of glucose yields 2880 kJ of energy whereas anaerobic breakdown yields 150 kJ. Give an explanation to account for this difference
Answer
In aerobic respiration glucose is completely oxidized; releasing large amount of energy; while in anaerobic respiration, glucose is partially oxidized; releasing less energy
Question 3
How many of 20 micrometres animal cells would fit in a 1cm long line
Answer
Question 4
State the function of the following apparatus
(i) Specimen bottle
(ii) Bait trap.
Answer
(i) storage of the collected specimen(s);
(ii) Attract and trap rodents;
(ii) Attract and trap rodents;
Question 5
Name the causative agents of the following diseases:
(a) Cholera
(b) Malaria
Answer
(a) Vibrio chlolerae;
(b) Plasmodium species;
(b) Plasmodium species;