a. The figure given below shows the epidermal cells of an onion bulb. This cell was then transferred to a drop of a sugar solution.



i. Draw a well labelled diagram of the epidermal cell as it would appear after immersion in a strong sugar solution.

ii. what is the scientific term is used for the changes as shown in (i) above?

iii. What should be done to restore the cell back to its original condition?

iv. Give the scientific term for the recovery of the cell as a result of the step taken in (iii) above

v. Define the term osmosis.

A candidate in order to study the process of osmosis has taken 3 potato cubes and put them in 3 different beakers containing 3 different solutions. After 24 hours, in the first beaker the potato cube increased in size, in the second beaker the potato cube decresed in size and in the third beaker there was no change in the size of the potato cube. The following diagram shows the result of the same experiment:



i. Give the technical terms of the solution used in beaker 1 2 and 3
ii. In beaker 3 the size of the potato cube remains the same. Explain the reason in brief
iii. Write the specific feature of the cell sap of root hair a which helps in absorption of water. 
iv. What is osmosis?
v. How does a cell wall and a cell membrane differ in their permeability?

a. Differentiate between the following pairs on the basis of what is mentioned within brackets:

Turgor pressure and wall pressure (Explain)

A candidate in order to study the process of osmosis has taken 3 potato cubes and put them in 3 different beakers containing 3 different solutions. After 24 hours, in the first beaker the potato cube increased in size, in the second beaker the potato cube decresed in size and in the third beaker there was no change in the size of the potato cube. The following diagram shows the result of the same experiment:

i. Give the technical terms of the solution used in beaker 1, 2 and 3. 
ii. In beaker 3 the size of the potato cube remains the same. Explain the reason in brief
iii. Write the specific feature of the cell sap of root hair a which helps in absorption of water.
iv. What is osmosis?
v. How does a cell wall and a cell membrane differ in their permeability?

a. The figure given below shows the epidermal cells of an onion bulb. This cell was then transferred to a drop of a sugar solution.



i. Draw a well labelled diagram of the epidermal cell as it would appear after immersion in a strong sugar solution.

ii. what is the scientific term is used for the changes as shown in (i) above?

iii. What should be done to restore the cell back to its original condition?

iv. Give the scientific term for the recovery of the cell as a result of the step taken in (iii) above

v. Define the term osmosis.

Give the biological/technical terms for the following:

 A solution in which the relative concentration of water molecules and the solute on either side of the cell membrane is the same. 

Given below are five groups of terms. In each group, arrange and rewrite the terms in the correct order so as to be in a logical sequence.
For example,
Question: Implantation, Parturition, Ovulation, Gestation, Fertilisation.
Answer: Ovulation, Fertilisation. Implantation. Gestation, Parturition.

Endodermis, Cortex. Soli water, Xylem, Root hair

Briefly explain the following terms:

Guttation 

Give biological reasons for the following:

Wooden frames of doors get jammed during the monsoon season.

Name the following:

i. The process of uptake of mineral ions against the concentration gradient using energy from cell.

Rewrite and complete the following sentences by inserting the correct word
in the space indicated:

The phenomenon of loss of water through a cut stem or injured part of plant is
called __________.