NDA Government Jobs Exams

Consider the following statements in relation to plant tissue 'chlorenchyma' :
1. It is formed by the palisade and spongy mesophyll
2. It is a form of parenchyma which contains chloroplasts.
3. It serves to transport organic solutes made by photosynthesis.
4.It is a thin transparent layer which has chiefly a protective function.
Which of the statements given above is/are correct ?
(a) 1 and 2 only (b) 1, 2 and 3 (c) 2 and 4 (d) 1 only

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NDA Other Question
Consider the following diseases :
1. Cholera
2. Tuberculosis
3. Filaria
4. Typhoid
Which of the above diseases are caused by bacteria ?
(a) 1 and 3 only (b) 2 and 4 only (c) 1, 3 and 4 (d) 1, 2 and 4 Consider the following statements regarding osmosis in animal cells -
1. If the water potential of the solution surrounding the cell is too high, the cell shirnks
2. If the water potential of the solution surrounding the cell is to low, the cell swells and bursts.
3. It is important to maintain a constant water potential inside the animal body
4. In animal cells, water potential far exceeds the solute potential
Which of the statements given above is/are correct ?
(a) 1 and 2 (b) 3 only (c) 4 (d) 2 and 3