Questions
on nutrition
1. Why is small intestine
in herbivores longer than in carnivores?
2. What will happen if mucus is not secreted by the gastric
glands?
3. What is the
significance of emulsification of fats?
4. What causes
movement of food inside the alimentary canal?
5. Why does absorption
of digested food occur mainly in the small intestine?
5 marks
1. Explain the process of nutrition in Amoeba.
2. Describe the alimentary canal of man.
3 Draw the diagram of alimentary canal of man and label the
following parts. Mouth, Oesophagus,
Stomach, Intestine .
4.How do
carbohydrates, proteins and fats get digested in human beings?
Questions on
respiration
- “All plants give out oxygen during day and carbon dioxide during night”. Do you agree with this statement? Give reason.
- Why do fishes die when taken out of water?
3. How does aerobic respiration differ from anaerobic
respiration?
4.Why is the rate of
breathing in aquatic organisms much faster than in terrestrial organisms?
5. Name the energy currency in the living organisms. When and
where is it produced?
Long answer
1. Explain the
three pathways of breakdown in living organisms.
Questions
on circulatory system
Short answer 2 mark
1. Differentiate between an artery
and a vein.
2. Why is blood circulation in
human heart called double circulation?
3. What is the advantage of having four
chambered heart? Why do veins have thin walls as compared to arteries?
4. What will happen if platelets were absent
in the blood?
Long answer
1. Describe
the flow of blood through the heart of human beings.
Questions
on transportation in plants and excretion
2 marks
1. Why and how does water enter
continuously into the root xylem?
2. Why is transpiration important
for plants?
3. How do leaves of plants help in
excretion?
4. What is translocation? Which
part of plant help in that?
5
marks
1.. Describe the process of urine
formation in kidneys.
