Plant Water Relation (Biology) Mocktest MHT-CET 2023

Plant Water Relation is an important chapter as its weightage for MHT-CET 2023 is about 3% from 12th biology syllabus

Plant Water Relation includes the following sub-topics:

Properties of water
Water absorbing organ
Water available to roots for absorption
Absorption of water by roots from soil
Water Potential
Plasmolysis
Path of water across the root (i.e. from epiblema upto xylem in the stelar region)
Mechanism of absorption of water
Translocation of water
Transport of mineral ions
Transport of food
Structure of stomatal apparatus

Before starting the test make sure to prepare all the above topics of plant water relation.

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Created on December 25, 2022 By

admin

Plant Water Relation Mocktest MHT-CET

Best of Luck!

1 / 40

Which of the following is not a property of water?

It is best solvent for most of the solutes

It provides energy necessary for most of the chemical reactions

It is a best aqueous medium for all biochemical reactions occurring in the cells

It is a best transporting medium for dissolved minerals and food molecules

2 / 40

Water has high

specific heat

heat of vaporization

heat of fusion

all of these

3 / 40

Epiphytic plants like orchids absorb water vapours from air with the help of epiphytic roots having special tissue called

hydathodes

velamen

phloem

lenticels

4 / 40

How many regions are there in a typical root?

Four

Three

Five

Six

5 / 40

Root hair occurs in the zone of

cell division

cell elongation

cell maturation

absorption

6 / 40

Cell wall of root hair is formed by which components?

Proteins

Pectic compounds and cellulose

Acidic compounds

Starch

7 / 40

Which type of water is available to the plants?

Hygroscopic water

Gravitational water

Combined water

Capillary water

8 / 40

Various physical processes involved in absorption of water are

imbibition

diffusion

osmosis

all of these

9 / 40

Substance that adsorbs water/liquid, is called as

absorbent

imbibate

imbibant

Both (B) and (C)

10 / 40

Dry seeds when placed in water swell due to

imbibition

absorption

diffusion

adsorption

11 / 40

The chemical potential of water is known as

solute potential

water potential

diffusion pressure

DPD

12 / 40

In symplast pathway, water travels through

intercellular space

intracellular space

cytoplasmic bridges

nucleus

13 / 40

The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as

osmosis

active absorption

passive absorption

imbibition

14 / 40

Water in plants is transported by

cambium

phloem

xylem or xylem vessel elements

epidermis

15 / 40

Select the INCORRECT statement from the following

Minerals are absorbed by plants in the ionic form

Minerals like P, N, S are required in small quantity, hence called as microelement

Absorption of minerals is independent of that of water

Analysis of ascending sap shows presence of mineral ions

16 / 40

In plants, food migrates from _____ to _____

sink end to supply end

upper end to lower end

supply end to sink end

underground part to aerial part

17 / 40

Translocation of food takes place through

meristem

xylem

phloem

all cells

18 / 40

The ultimate cause of the movement of water against gravity in a tree is

photosynthesis

osmosis

transpiration

imbibition

19 / 40

Stomatal apparatus consists of

guard cells

stoma

accessory cells

all of these

20 / 40

_____ plant shows both kidney and dumbbell shaped guard cells.

Nerium

Lotus

Maize

Cyperus

21 / 40

"Transpiration is a necessary evil", this sentence was given by

Steward

Darwin

Levitt

Curtis

22 / 40

Evaporation of water from leaves creates a ____ that pulls water upward through the xylem

negative water potential

positive water potential

negative solute potential

negative root pressure

23 / 40

Root cap has no function in water absorption because

its vascular system Is not directly connected

its cells are loosely placed

it has cells without chloroplast

it has no root hair

24 / 40

Wilting appears due to excessive

respiration

photosynthesis

absorption

transpiration

25 / 40

Dumb-bell shaped guard cells are found in

Wheat

Bean

Groundnut

Sunflower

26 / 40

Which property of cellulose and pectic compounds help root hairs to absorb water?

They are hydrophilic

They are hydrophobic

They are hygroscopic

They are porous

27 / 40

Dry wooden pieces, if driven into a small crack in a rock and then soaked, can develop enough pressure to split the rock. Such pressure is developed due to

osmosis

imbibition

turgor pressure

plasmolysis

28 / 40

Uniformly sweet taste of a cup of tea is due to

sublimation

osmosis

permeability

diffusion

29 / 40

Plant cells kept in saline drop will

remain unchanged

decrease in size

increase in size

burst out

30 / 40

In a fully turgid cell, the values of DPD. OP and TP will show the tendency

DPD = 10 atm, OP = 15 atm, TP = 5 atm

DPD =5 atm, OP =12 atm, TP =7 atm

DPD =2 atm, OP =7 atm, TP =5 atm

DPD =0 atm, OP =15 atm, TP =15 atm

31 / 40

Water potential of an actively absorbing cell is

always +ve

always -ve

always 0

always>1

32 / 40

Addition of a solute to pure water causes

negative water potential

water potential to remain constant

positive water potential

more positive water potential

33 / 40

Path of water movement from soil to xylem is

metaxylem→ protoxylem→ cortex→ soil→ root hair

soil→ cortex→ root hair→ endodermis→ pericycle→ protoxylem→ metaxylem

soil→ root hair→ cortex→ endodermis→ pericycle→ protoxylem→ metaxylem

pericycle→ soil→ root hair→ cortex→ endodermis→ protoxylem→ metaxylem

34 / 40

What happens when secondary roots develop from pericycle which is just inside the endodermis ?

It causes reverse flow of water to primary root causing death of secondary roots

Water moves through apoplastic pathway directly to xylem and phloem that bypasses the casparian strip

Water moves through symplastic pathway

Water starts moving through living tissue

35 / 40

Read the given statements and select the correct option.

i) Passive absorption occurs during day time when transpiration is in progress

ii) Active absorption occurs both during day time and night time when rate of transpiration is high

The correct statemen/'s is/are

only i

only ii

both i and ii

neither i nor ii

36 / 40

Rupture and fractionation of water column present in tracheary elements does not occur during ascent of sap due to

transpiration pull

weak gravitational pull

cohesion and adhesion

lignified thick walls

37 / 40

The flow of organic solutes in plants is

in upward direction

in downward direction

lateral

all the above

38 / 40

All the given below are examples of upward transport of food, except

transport of food from leaves to growing of stem

transport of food from leaves to fruit situated near the ends of the branches of stem

transport of food from seed to growing seedling

transport of food from leaves to root

39 / 40

Stomata opens due to

influx of calcium ions

influx of potassium ions

efflux of potassium ions

influx of hydrogen ions

40 / 40

Of the processes which occur in leaves, the one which may lower their temperature (cooling effect) is

respiration

photosynthesis

transpiration

hydrolysis

Your score is

The average score is 53%

Mocktest of Plant Water Relation is live!

Name of test : Plant Water Relation
Subject : Biology(12th)
Marks per question : 2 marks
No. of questions : 40 questions
Total marks of test : 80 marks

Domocktest Digital platform created a Online test Series for MHT-CET examination. This is state level exam conducted by Maharashtra Test cell for Students to take admission in different college’s all over Maharashtra for qualifying degrees like engineering and B pharmacy.

In this test we have included some important questions of “Plant Water Relation” for MHT-CET 2023 . This questions are really helpful to you to score good marks in examination.

In the above test we have almost covered all the frequently asked questions in MHT-CET examination related to “Plant Water Relation ”. If you are scoring best in the tests provided by us we assure you that you will definitely score good in your entrance examination. We have tried our best and make this difficult test for you.

If you don’t have resources for preparation of NEET/MHT-CET. You can download the 12th textbooks and previous years exam papers from our another website: Maharashtra syllabus

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Plant Water Relation (Biology) Mocktest MHT-CET 2023

Plant Water Relation includes the following sub-topics:

Best of Luck!

Mocktest of Plant Water Relation is live!

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