Two cells A and B  are contiguous. Cell A has osmotic pressure 10 atm, turgor pressure-7 atm, and diffusion pressure deficit 3 atm. Cell B has an osmotic pressure of 8 atm, turgor pressure of 3 atm, and diffusion pressure deficit of 5 atm. The result will be:

1. Movement of water from cell B to A

2. No movement of water

3. Equilibrium between the two

4. Movement of water from cell A to B

Which one of the following elements is not an essential micronutrient for plant growth?
1. Mn
2. Zn
3. Cu
4. Ca

Male gametes in angiosperms are formed by the division of:

1. microspore

2. generative cell

3. vegetative cell

4. microspore mother cell

Which one of the following is surrounded by a callose wall?

1. Microspore mother cell

2. Male gamete

3. Egg

4. Pollen grain

Which one of the following statements about mycoplasma is wrong?

1. They are also called PPLO

2. They are pleomorphic

3. They are sensitive to penicillin

4. They cause disease in plants

Which one of the following is not a bioindicator of water pollution?

1. Sludge-worms

2. Blood-worms

3. Stone files

4. Sewage fungus

Select the wrong statement from the following:

Which one of the following pairs of organisms are exotic species introduced in India?

1. Ficus religiosa. Lantana camara

2. Lantana camara, Water hyacinth

3. Water hyacinth, Prosopis cineraria

4. Nile perch, Ficus religiosa

Which one of the following statements is correct?

Bowman's glands are located in the:

1. proximal end of uriniferous tubules

2. anterior pituitary

3. female reproductive system of cockroach

4. olfactory epithelium of our nose