Question 1

Diffussion

Accepted Answer

The movement of molecules of a substance from the region of higher concentration to the region of lower concentration

Answer

The movement of molecules of a substance from the region of higher concentration to the region of lower concentration through semi permeable membrane.

Answer

The movement of molecules of a substance from the region of lower concentration to the region of higher concentration

Answer

The movement of molecules of a substance within same concentration

Question 2

Plasmolysis

Accepted Answer

The phenomena of contraction of cytoplasm from the cell wall

Answer

The phenomena of contraction of cytoplasm from cell membrane

Answer

The phenomena of contraction of cytoplasm from the cell organelles

Answer

The phenomena of contraction of cytoplasm from the nuclear membrane

Question 3

Turgidity

Accepted Answer

A condition of being fully distended due to endosmosis

Answer

A condition of being fully distended due to exosmosis

Answer

A condition of being fully distended due to plasmolysis

Answer

A condition of being fully distended due to diffusion

Question 4

Bleeding

Accepted Answer

Exudation of cell sap from any injured or cut part of a plant

Answer

Exudation of cell sap from any aerial part of a plant

Answer

Exudation of cell sap from any injured or cut part of a older tree

Answer

Exudation of cell sap from leaf margin of a plant.

Question 5

Hydathodes

Accepted Answer

Leaf margin and tip

Answer

Flowering bud

Answer

Nodes of stem

Answer

Roop tip

Question 6

Lenticels

Accepted Answer

On the bank of the older woody stem

Answer

On the leaf of the older woody stem

Answer

On the bank of the young stem

Answer

On the nodes of the older woody stem

Question 7

Stomata

Accepted Answer

Surface of leaves

Answer

Flower petals

Answer

Internode of stem

Answer

Root hair

Question 8

Epiblema

Accepted Answer

Root Cells

Answer

Flowers

Answer

Leaf cells

Answer

stem cells

Question 9

State the function of the following

Accepted Answer

Allow some molecules to pass through while blocking the passage of other molecules

Answer

Allow water molecules to pass through while blocking the passage of other molecules.

Answer

Allow some molecules to pass through while blocking the passage of water.

Answer

Allow all molecules to pass through

Question 10

Lenticel

Accepted Answer

They allow diffusion of gases for respiration and photosynthesis

Answer

They allow diffusion of gases for photosynthesis only

Answer

They allow diffusion of water molecules for respiration and photosynthesis

Answer

They allow diffusion of gases for respiration only

Question 11

Hydathodes

Accepted Answer

Helps in guttation

Answer

Helps in respiration

Answer

Helps in photosynthesis

Answer

Helps in transpiration

Question 12

Stomata

Accepted Answer

For gaseous exchange

Answer

For exudation

Answer

For removal of cell sap

Answer

For photosythesis

Question 13

Sea fish when put in the tap water may bursts due to

Accepted Answer

Endosmosis

Answer

Diffusion

Answer

Exosmosis

Answer

Plasmolysis

Question 14

Choose the correct answer from each of the four options given below:

A plant cell can rupture if :

Accepted Answer

Turgor pressure exceed wall pressure

Answer

Wall pressure equalizes turgor pressure

Answer

Wall pressure exceeds osmotic pressure

Answer

Turgor pressure equalizes wall pressure

Question 15

What will be the condition of a plant cell when placed in hypotonicsolution?

Accepted Answer

Endosmosis will takes place

Answer

Deplasmolysis will take place

Answer

Exosmosis will take place

Answer

No change in condition of plant cell

Question 16

Give the biological term of the process of mixing of two different substances/molecules of different concentrations.

Accepted Answer

diffusion

Answer

Deplasmolysis

Answer

Osmosis

Answer

Plasmolysis

Question 17

Name the phenomenon by which living or dead plant cells absorb water by surface attraction.

Accepted Answer

Imbibition

Answer

Plasmolysis

Answer

Diffusion

Answer

Osmosis

Question 18

Which part of the plant transports water from the soil to other parts of the plant

Accepted Answer

Xylem

Answer

Root hair

Answer

Cortex

Answer

Phloem

Question 19

The cells of roots exert pressure due to which ascent of sap occurs is called

Accepted Answer

root pressure

Answer

Osmotic pressure

Answer

Wall pressure

Answer

Turgor pressure

Question 20

A isotonic solution is

Accepted Answer

If the external solution has similar or solvent concentration as the cell

Answer

If the external solution has no solute present in it (pure water)

Answer

If the external solution has a high solute (or low solvent) concentration than the cell.

Answer

If the external solution has low solute (or high solvent) concentration than the cell

Question 21

Diffusion in plants takes place through

Accepted Answer

Both of the above

Answer

Stomata

Answer

None of the these

Answer

Lenticels

Question 22

Plasma membrane of plant cell is

Accepted Answer

Selective permeable

Answer

Semi permeable

Answer

Non permeable

Answer

Permeable

Question 23

Which of the following part of the plant does not involve in pathway of water absorption ?

Accepted Answer

Phloem

Answer

Cortex

Answer

Epidermis

Answer

Xylem

Question 24

What is the name of the process given to the uptake of minerals ions against the concentration gradient ?

Accepted Answer

Active transport

Answer

Diffusion

Answer

Osmosis

Answer

Passive transport

Question 25

Which of the following has correct logical sequence for transportation of water in plants

Accepted Answer

Root hair, epidermis, cortex, endodermis, xylem.

Answer

Endodermis, cortex, soil water, xylem root hair.

Answer

Root hair, Endodermis, Epidermis, Xylem, Cortex.

Answer

Soil water, root hair, cells of cortex, endodermis, xylem.

Question 26

Healthy plant cells are

Accepted Answer

Turgid

Answer

flaccid

Answer

Swollen

Answer

Dry

Question 27

State the main function of the lenticels.

Accepted Answer

They allow diffusion of gases for respiration and photosynthesis

Answer

They help in water transport

Answer

They provide nutrition to be plant

Answer

They are supportive structure of root

Question 28

Identify the odd one from the following terms

Accepted Answer

Phagocytosis

Answer

Transpiration

Answer

Guttation

Answer

Photosynthesis

Question 29

Which of the following is the exact location of the hydathodes

Accepted Answer

Tip and margins of leaf

Answer

Node of stem

Answer

All aerial part of plant

Answer

Stem and branches

Question 30

Which of the following structure in plants remains open always

Accepted Answer

Lenticels

Answer

Both

Answer

Stomata

Answer

None of these

Question 31

The biological term for the exudation of sap from injured parts of plant is

Accepted Answer

Bleeding

Answer

Guttation

Answer

Transpiration

Answer

Exudation

Question 32

the loss of water in the form of water vapours from the aerial (living) parts of the plant is called

Accepted Answer

Transpiration

Answer

Ascent of sap

Answer

Evaporation

Answer

Respiration

Question 33

In transpiration, water leaves plants in form of

Accepted Answer

Vapours

Answer

Mist

Answer

Dew

Answer

Sap

Question 34

Which of the following process occurring in leaves lowers the temperature of plant

Accepted Answer

Transpiration

Answer

Respiration

Answer

Guttation

Answer

Photosythesis

Question 35

Old woody plants transpire through

Accepted Answer

Lenticels

Answer

Stomata

Answer

Bark

Answer

Root

Question 36

Location of stomata in plant

Accepted Answer

Surface of leaves

Answer

Flower petals

Answer

Root hair

Answer

Internode of stem

Question 37

Assertion (A): Root hairs become flaccid and droop when excess fertilizers are added to the moist soil around them

Reason (R): formation of hypertonic solution which results in plasmolysis/exosmosis.

Accepted Answer

Both(A) and (R) are true, and (R) is the correct explanation of (A)

Answer

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

Answer

(A) is false, but (R) is true

Answer

(A) is true, but (R) is false

Question 38

Assertion (A): Potato cubes when placed in water become firm and increase in size.

Reason(R): Potato tuber cells have very high absorbing capacity.

Accepted Answer

(A) is true, but (R) is false

Answer

(A) is false, but (R) is true.

Answer

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Question 39

Assertion (A): High concentration of salt is added to pickles.

Reason (R): It allows pickle to be preserved for long duration.

Accepted Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Answer

(A) is true, but (R) is false

Answer

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

Answer

(A) is false, but (R) is true

Question 40

Assertion (A): Sugar solution is hypertonic in nature

Reason(R): it is less concentrated than water.

Accepted Answer

(A) is true, but (R) is false

Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Answer

(A)is false, but (R) is true.

Answer

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

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