Given below is the diagram of a plasmolysed cortical cell of a root. Copy the diagram and label the following parts: (a) Cytoplasm (b) Hypertonic solution (c) Plasma membrane

Where are Hydathodes located?

Which of the following helps in the opening of stomata? (a) Cobalt ions (b) Potassium ions (c) Magnesium ions (d) Aluminium ions

What is a semi permeable membrane? Name the semi permeable membrane present in a plant cell.

What is Active transport?

The process by which water is lost from the margins of the leaves of a strawberry plant is: (a) Osmosis (b) Imbibition (c) Diffusion (d) Guttation

Name the following: (i) The organelle that forms the aster during cell division. (ii) A genetic disorder in which the blood does not clot. (iii) The permanent stoppage of menstruation in human females around the age of 45 years. (iv) The openings on the barks of trees through which transpiration occurs. (v) A gaseous plant hormone which promotes ripening of fruits.

Define the term Transpiration.

The paper used to demonstrate unequal transpiration in a dicot leaf is: (a) Filter paper (b) Litmus paper (c) Starch paper (d) Cobalt chloride paper

Mention two adaptations in roots for absorption of water from the soil.

Arrange and rewrite the terms in each group in correct order to be in a logical sequence beginning with the term that is underlined: (a) Snake, Rabbit, Cabbage, Hawk. (b) Xylem, Soil water, Cortical cells, Root hair. (c) Receptor, Response, Effector, Spinal Cord. (d) Fovea, Lens, Cornea, Conjunctiva. (e) Testis, Urethra, Sperm duct, Epididymis.

Deplasmolysis occurs when a plasmolysed cell is placed in: (a) Concentrated salt solution (b) Tap water (c) Concentrated sugar solution (d) Hypertonic salt solution