Biology
The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow:

(i) Which factor is being studied here?
(ii) What is the purpose of keeping KOH in the flask?
(iii) Explain the term Photosynthesis.
(iv) What will you observe when the leaf A is tested for starch?
(v) Write a well balanced chemical equation for the process of photosynthesis.
Related Questions
Match the items given in column A with the most appropriate ones in Column B and REWRITE the correct matching pairs:
Column A Column B (i) Biston betularia Calcium (ii) Testes balance of the body (iii) Clotting of blood Light independent reaction (iv) Stroma diffusion of gases (v) Stomata gonad Peppered moth Light dependent reaction Chlorophyll The diagram given below represents a plant movement. Answer the following questions.

(i) Name the tropic movement shown in the diagram.
(ii) Explain the tropic movement mentioned in (i).
(iii) Label the part marked 'A'.
(iv) What is part A attracted to?
(v) Give an example of plant which shows Thigmotropism.
The diagram given below represents the simplified pathway of the circulation of blood. Answer the questions that follow:

(i) Name the blood vessels labelled 1 to 4.
(ii) Which blood vessel supplies oxygenated blood to the muscles of the heart?
(iii) What is the importance of blood vessel labelled 5?
(iv) What is the type of blood circulation that takes place between the heart and the lungs?
(v) Draw a diagram of the different blood cells as seen in a smear of human blood.
The diagram given below depicts a defect of the human eye which has been corrected by using a suitable lens. Answer the following questions:

(i) Name the defect that has been corrected. Which type of lens has been used for the correction?
(ii) Mention one cause for the above defect.
(iii) Where would the image have formed if the above lens was not used for correction?
(iv) Name the three concentric layers of the eyeball.
(v) Draw a neat, labelled diagram of a neuron.