Explain the following terms:
Turgor pressure
Turgor pressure is the pressure applied by cell content over cell wall when the cell is in turgid condition.
A. An apparatus as shown below was set-up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follows:
i. Name the process being studied.
ii. Explain the process named above in Q 3 a i.
iii. Why was the pot covered with a plastic sheet?
iv. Suggest a suitable control for this experiment.
v. Mention two ways in which this process is beneficial to plant.
vi . List three adaptations in plants to reduce the above mentioned process.
The diagram given below shows the male urogenital system of a human being. Study the diagram and answer the questions that follow.
(i) Label the parts numbers 1 to 8
(ii) Name the corresponding structure of part (4) in female reproductive system.
(iii) What is the role of part 7 ?
The diagrams given below are cross sections of blood vessels:
i. Identify the blood vessel A B and C
ii. Name the parts labelled 1 to 3
iii. Name the type of blood that flows through A
iv. Mention one structural difference A and B
v. In which of the above vessels does exchange of gases actually take place?
The diagram given below a certain stage of mitosis:
i. Identify the stage of cell division.
ii.. Name the parts labelled A and B
iii. What is the unique feature observed in this stage?
Iv How many daughter cells are formed from this type of cell division?
The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-Tube B contains both a green water plant and a snail. Both test-tubes are kept in sunlight. Answer the questions that follow:
i. Name the physiological process that releases the bubbles of oxygen.
ii. Explain the physiological process as mentioned above in 36.
iii. What is the purpose of keeping a snail in test-tube ‘B’?
iv. Why does test-tube ‘B’ have more bubbles of oxygen?
v. Given an example of a water plant that can be used in the above process.
vi Write the overall chemical equation for the above process.