Free Printable PLANT PHYSIOLOGY COMBINED QUIZ

1.

If a cell A with DPD = 5 bars is connected to cells B, C and D, whose OP and TP are respectively 5 and 5, 10 and 4, and 8 and 3, the flow of water will be

a)

C to A, B and D

b)

A and D to B and C

c)

A to B, C and D

d)

B to A, C and D

2.

Read the following statements and select the correct option.

Statement 1: Plasmolysis is bursting of cell membrane when a cell is kept in a hypertonic Solution

Statement 2: hypertonic solution causes endosmosis.

a)

Both statements 1 and 2 are correct.

b)

Statement 1 is correct but statement 2 is incorrect.

c)

Statement 1 is incorrect but statement 2 is correct.

d)

Both statements 1 and 2 are incorrect

3.

Which of the following transport mechanisms shows saturation of transport but does not show uphill transport?

a)

Simple diffusion

b)

Active transport

c)

Facilitated diffusion

d)

Both simple and facilitated diffusion

4.

Depict the flow of water molecules by referring to the image given below.

a)

From A to B

b)

From B to A

c)

No net movement of water

d)

Data inadequate

5.

Which of the following statement is correct regarding root pressure?

a)

Majority of water transport to fulfil needs of a plant is accomplished by root pressure.

b)

Effect of root pressure is observed at night and early morning when evaporation is low.

c)

It maintains the shape and structure of the plants by keeping cells turgid.

d)

It is responsible for cooling of leaf surfaces upto 10 to 15 degrees.

6.

Highest water potential is observed in case of

a)

Solution in a beaker

b)

Cell sap

c)

Pure water solvent

d)

All of the above

7.

During the translocation of food in plants, the sink

a)

Has low osmotic pressure as compared to phloem sap

b)

Has more osmotic pressure as compared to phloem sap

c)

Receives sucrose molecules from phloem sap by facilitated diffusion

d)

Is the part that synthesises the food

8.

The direction of water along with dissolved minerals in xylem is

a)

Bidirectional

b)

Multidirectional

c)

From shoot to roots

d)

From roots to shoot

9.

The loss of water in liquid phase from the plant leaves is known as

a)

Transpiration

b)

Guttation

c)

Evaporation

d)

Diffusion

10.

The Na+/K+ pump of nerve cells

a)

Is an energy-dependent membrane transporter

b)

Is involved in passive transport of ions

c)

Transports ions along their concentration gradient

d)

Never shows saturation of transport

11.

The cell A has an osmotic potential of -20 bars and a pressure potential of +6 bars. What will be its water potential?

a)

-14 bars

b)

+14 bars

c)

-20 bars

d)

-26 bars

12.

Which of the following occupies the space between the cell wall and the shrunken protoplast in a plasmolysed cell?

a)

Isotonic solution

b)

hypotonic solution

c)

Hypertonic solution

d)

Water

13.

Match column I with column II and select the correct option from the given codes.

a)

A-(ii), B-(iii), C-(i)

b)

A-(iii), B-(ii), C-(i)

c)

A-(i), B-(ii), C-(iii)

d)

A-(ii), B-(i), C-(iii)

14.

Assertion : More is the number of solute molecules, the lower (more negative) is Ψw.

Reason : Presence of solute particles reduces the free energy of water and this decreases the water potential.

a)

Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

b)

Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.

c)

Assertion is true but Reason is false.

d)

Both Assertion and Reason are false

15.

Assertion : Osmosis is a special type of diffusion of water through a semi-permeable membrane.

Reason : The net direction and rate of osmosis depends only on the pressure gradient.

a)

Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

b)

Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.

c)

Assertion is true but Reason is false.

d)

Both Assertion and Reason are false

16.

Assertion : The loss of water in its liquid phase from the leaves is called guttation.

Reason :Guttation takes place at night only.

a)

Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

b)

Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.

c)

Assertion is true but Reason is false.

d)

Both Assertion and Reason are false

17.

A plant cell attains turgidity due to

a)

Electrolysis

b)

Exosmosis

c)

Plasmolysis

d)

Endosmosis

18.

If cell A with OP = 5 and TP = 4 is surrounded by cells with OP = 3 and TP = 1, what will be the direction of water?

a)

From cell A to other cells

b)

From other cells to cell A

c)

Water will not move

d)

Water will move up

19.

Girdling experiment proves that

a)

Phloem is the tissue responsible for the translocation of food

b)

Transport via phloem essentially takes place in one direction

c)

The direction of food transport is downwards

d)

All the above

20.

Assertion : Osmotic pressure is numerically equivalent to the osmotic potential.

Reason :Osmotic pressure is the negative pressure applied, while osmotic potential is positive.

a)

Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

b)

Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.

c)

Assertion is true but Reason is false.

d)

Both Assertion and Reason are false

21.

Vascular tissue that transports water and minerals UPWARDS from a plant's roots is know as ______.

a)

Cambium

b)

Stomata

c)

Phloem

d)

Xylem

22.

Plant absorbs water through the _________.

a)

leaves

b)

stem

c)

roots

d)

all of the above

23.

The plant transport system are made up of ____ types of tubes.

a)

1

b)

2

c)

3

d)

many

24.

What is the name of the part of the root that allows water and minerals enter?

a)

root hairs

b)

epidermis

c)

phloem

d)

xylem

25.

what is/are adaptation (s) of the root hair for its function ?

a)

it has large surface area to absorb more water

b)

large vacuole to store a lot of water

c)

has many mitochondria for active transport of minerals

d)

it is a place to store the food

26.

How do water enter the roots from the soil?

a)

diffusion

b)

osmosis

c)

transpiration

d)

active transport

27.

Transpiration is

a)

the movement of water through a plant from the roots up the stem

b)

the loss of water from the leaves of a plant by the process of evaporation

c)

the flow of water into plant roots by osmosis from the soil

d)

the process of minerals and sugars moving through plant veins

28.

This is the definition for which word: The movement of particles down a concentration gradient (from a high concentration to a low concentration)

a)

Osmosis

b)

Diffusion

c)

Active transport

d)

Transpiration

29.

This is the definition for which word: The movement of water molecules from a high concentration of water to a low concentration of water across a partially permeable membrane.

a)

Osmosis

b)

Active transport

c)

Diffusion

d)

Transpiration

30.

Why is the evaporation of water from leaves important?

a)

It cools leaves and helps move water up the plant.

b)

It helps the plant to respire

c)

It makes the plant wilt

31.

Which of these is/ are true?

a)

Xylem vessels carry water and dissolved minerals up the plant

b)

Xylem vessels carry dissolved sucrose up and down the plant

c)

Phloem tissue carry water and dissolved minerals up the plant

d)

Phloem tissue carry dissolved sucrose up and down the plant

32.

What happens to the transpiration rate as light intensity increases?

a)

It increases

b)

It decreases

c)

It stays the same

33.

Water and minerals move in which direction within the plant

a)

upward

b)

down

c)

both up and down

34.

Plant transports food made in the leaves to __________.

a)

roots

b)

flowers

c)

stem

d)

all of the above

35.

diagram show the cross section of

a)

stem

b)

root

c)

leaf

36.

what is A

a)

xylem

b)

cambium

c)

phloem

d)

cortex

37.

what is B

a)

phloem

b)

cambium

c)

xylem

d)

cortex

38.

diagram shows cross section of a

a)

leaf

b)

root

c)

stem

39.

why can vascular plant grow much taller than non-vascular plants?

a)

they can transfer nutrients higher

b)

they have a strong root system

c)

they need much sunlight

d)

they need little water

40.

Which of the following drive the transportation of water from stem to leaf?

i) Root Pressure

ii) Capillary action

iii) Concentration of soil solution

iv) Transpirational pull

a)

i and ii

b)

i and iii

c)

ii and iv

d)

iii and iv

41.

The only living cells in xylem tissue are

a)

Xylem sclerenchyma

b)

Xylem tracheids

c)

Xylem vessels

d)

Xylem parenchyma

42.

Raisins swell when put in

a)

Saline water

b)

Saturated sugar solution

c)

Rain water

d)

Coconut oil

43.

The movement of molecules from their lower concentration to a higher concentration with the help of energy

a)

Diffusion

b)

Active transport

c)

Osmosis

d)

Brownian movement

44.

The rate of transpiration decreases with an increase in

a)

Sunlight

b)

Temperature

c)

Humidity

d)

Wind

45.

The inorganic nutrient that is involved in the opening and closing of stomata

a)

Iron

b)

Phosphorus

c)

Potassium

d)

Nitrogen

46.

The food synthesised in the plants is transported through phloem in the form of

a)

Sucrose

b)

Starch

c)

Glucose

d)

Fats

47.

Conducting cells in phloem are

a)

Phloem parenchyma

b)

Sieve tubes

c)

Companion cells

d)

Phloem fibres

48.

Most of the water gets evaporated from the plants from its

a)

Flowers

b)

Stem

c)

Roots

d)

Leaves

49.

If pure water is separated from a strong sugar solution by a semi permeable membrane, then the net movement of molecules is

a)

From pure water to the sugar solution

b)

From sugar solution to pure water

c)

No net movement

d)

Equal movement of molecules In both directions

50.

Ascent of sap takes place through

a)

Phloem

b)

Epidermis

c)

Cortex

d)

Xylem

51.

a)

A

b)

B

c)

C

d)

D

52.

a)

A

b)

B

c)

C

d)

D

53.

a)

A

b)

B

c)

C

d)

D

54.

a)

A

b)

B

c)

C

d)

D

55.

a)

A-1

B-4

C-2

D-3

b)

A-4

B-3

C-2

D-1

c)

A-1

B-4

C-3

D-2

d)

A-2

B-3

C-1

D-4

56.

a)

A

b)

B

c)

C

d)

D

57.

a)

A

b)

B

c)

C

d)

D

58.

a)

A

b)

B

c)

C

d)

D

59.

a)

A

b)

B

c)

C

d)

D

60.

a)

A

b)

B

c)

C

d)

D

61.

a)

A

b)

B

c)

C

d)

D

62.

a)

A

b)

B

c)

C

d)

D

63.

a)

A

b)

B

c)

C

d)

D

64.

a)

A

b)

B

c)

C

d)

D

65.

a)

A

b)

B

c)

C

d)

D

66.

a)

A

b)

B

c)

C

d)

D

67.

a)

A

b)

B

c)

C

d)

D

68.

a)

A

b)

B

c)

C

d)

D

69.

Given diagram illustrates technique of growing

plants in a nutrient solution. Find out incorrect w.r.t the given diagram

a)

This technique is successfully employed for the commercial production of vegetables such as tomato, seedless cucumber and lettuce

b)

this technique is called Hydroponics

c)

this technique was illustrated by Julius von Sachs in year 1860 for the first time.

d)

There is no need of aeration in this technique.

70.

Find incorrect statement w.r.t given diagram.

a)

'B' represents tube required to add mineral nutrients

b)

'B' represents aerating tube, used to aerate the roots in order to obtain the optimum growth.

c)

'A' represents funnel required for adding mineral nutrients.

d)

cotton plug is applied to keep the plant in its place.

71.

a)

A

b)

B

c)

C

d)

D

72.

a)

A

b)

B

c)

C

d)

D

73.

a)

A

b)

B

c)

C

d)

D

74.

a)

A

b)

B

c)

C

d)

D

75.

a)

A

b)

B

c)

C

d)

D

76.

a)

A

b)

B

c)

C

d)

D

77.

a)

A

b)

B

c)

C

d)

D

78.

a)

A

b)

B

c)

C

d)

D

79.

a)

A

b)

B

c)

C

d)

D

80.

a)

A

b)

B

c)

C

d)

D

81.

a)

A

b)

B

c)

C

d)

D

82.

a)

A

b)

B

c)

C

d)

D

83.

a)

A

b)

B

c)

C

d)

D

84.

a)

A

b)

B

c)

C

d)

D

85.

a)

A

b)

B

c)

C

d)

D

86.

a)

A

b)

B

c)

C

d)

D

87.

a)

A

b)

B

c)

C

d)

D

88.

a)

A

b)

B

c)

C

d)

D

89.

a)

A

b)

B

c)

C

d)

D

90.

a)

A

b)

B

c)

C

d)

D

91.

a)

A

b)

B

c)

C

d)

D

92.

a)

A

b)

B

c)

C

d)

D

93.

a)

A

b)

B

c)

C

d)

D

94.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

95.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

96.

The given figure shows growth of two leaves over the period of one day. If, AG = absolute growth and RGR = relative growth rate, then select the correct option.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

97.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

98.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

99.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

100.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

101.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

102.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

103.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

104.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

105.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

106.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

107.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

108.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

109.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

110.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

111.

a)

A-(iii), B-(v), C-(ii), (iv), D-(i)

b)

A-(ii), B-(v), C-(iii), (iv), D-(i)

c)

A-(v), B-(ii), C-(iii), (iv), D-(i)

d)

A-(ii), B-(v), C-(iii) D-(i),(iv)

112.

a)

(a)

b)

(b)

c)

(c)

d)

(d)

113.

In order to increase the yield of sugarcane crop, which of the following should be sprayed?

a)

cytokinin

b)

ethylene

c)

auxin

d)

gibberellin

114.

Statement I- Dormancy is controlled by some factors which are under endogenous control or conditions within the seed itself.

Statement II- Impermeable and hard seed coat; presence of chemical inhibitors such as abscissic acids, phenolic acids, para-ascorbic acid; and immature embryos are some of the reasons which causes seed dormancy.

Statement III- The seed coat barrier in some seeds can be broken by mechanical abrasions using knives, sandpaper, etc. or vigorous shaking.

Statement IV- Effect of inhibitory substances can be removed by subjecting the seeds to high temperature conditions or by application of certain chemicals like cytokinin and nitrates.

a)

only statement I is correct

b)

statement II and III are incorrect

c)

only statement IV is incorrect

d)

all are correct

115.

What is incorrect w.r.t given diagram?

a)

Given figure illustrates some Plants that follow different pathways in response to environment or phases

of life to form different kinds of structures

b)

Ability of certain plants to follow different pathways of development is called plasticity.

c)

cotton, coriander and larkspur shows environmental heterophylly

d)

Buttercup shows environmental heterophylly.

116.

a)

A

b)

B

c)

C

d)

D

117.

a)

A

b)

B

c)

C

d)

D

118.

a)

A

b)

B

c)

C

d)

D

119.

a)

A

b)

B

c)

C

d)

D

120.

a)

A

b)

B

c)

C

d)

D

121.

a)

A

b)

B

c)

C

d)

D

122.

a)

A

b)

B

c)

C

d)

D

123.

a)

A

b)

B

c)

C

d)

D

124.

a)

A

b)

B

c)

C

d)

D

125.

a)

A

b)

B

c)

C

d)

D

126.

a)

A

b)

B

c)

C

d)

D

127.

a)

A

b)

B

c)

C

d)

D

128.

a)

A

b)

B

c)

C

d)

D

129.

a)

A

b)

B

c)

C

d)

D

130.

a)

A and B

b)

B and C

c)

C and D

d)

A and D

131.

a)

A

b)

B

c)

C

d)

D

132.

a)

A

b)

B

c)

C

d)

D

133.

a)

A

b)

B

c)

C

d)

D

134.

a)

A

b)

B

c)

C

d)

D

135.

a)

A

b)

B

c)

C

d)

D

136.

a)

A

b)

B

c)

C

d)

D

137.

a)

A

b)

B

c)

C

d)

D

138.

a)

A

b)

B

c)

C

d)

D

139.

a)

A

b)

B

c)

C

d)

D

140.

a)

A

b)

B

c)

C

d)

D

141.

A bottle filled with previously moistened Mustard seeds and water was screw capped tightly and kept in a corner. It blew up suddenly after about half an hour. The phenomenon involved is

a)

diffusion

b)

imbibition

c)

osmosis

d)

D.P.D

142.

When a cell is fully turgid, which of the following is likely to be zero?

a)

osmotic pressure

b)

turgor pressure

c)

water potential

d)

wall pressure

143.

which of the following options denote correct flow of water?

a)

b)

c)

d)

144.

a)

A

b)

B

c)

C

d)

D

145.

a)

A

b)

B

c)

C

d)

D

146.

a)

A

b)

B

c)

C

d)

D

147.

a)

A

b)

B

c)

C

d)

D

148.

a)

A

b)

B

c)

C

d)

D

149.

a)

A

b)

B

c)

C

d)

D

150.

a)

A

b)

B

c)

C

d)

D

151.

a)

A

b)

B

c)

C

d)

D

152.

a)

A

b)

B

c)

C

d)

D

153.

a)

A

b)

B

c)

C

d)

D

154.

a)

A

b)

B

c)

C

d)

D

155.

a)

A

b)

B

c)

C

d)

D

156.

a)

A

b)

B

c)

C

d)

D

157.

a)

A

b)

B

c)

C

d)

D

158.

a)

A

b)

B

c)

C

d)

D

159.

a)

A

b)

B

c)

C

d)

D

160.

Given figure represents states of three cells placed in solutions A, B and C respectively. Select the incorrect statement.

a)

solution B is isotonic, so equal amount of water moves in and out of the cell.

b)

solution C is hypertonic , as a result water inflows into cell.

c)

contents of Cell in solution A shrinks away from cell wall due to continuous outflow of water.

d)

hypertonic solution occupies the space between the cell wall and shrunken protoplast in cell placed in solution A.

PLANT PHYSIOLOGY COMBINED QUIZ

Total questions: 160

Worksheet time: 1hrs 20mins

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