Water, mineral salts, some organic nitrogen and hormones

Water, mineral salts and some organic nitrogen only

Match List - I with List - II. List-I List-II (a) Cohesion (i) More attraction in liquid phase (b) Adhesion (ii) Mutual attraction among water molecules (c) Surface tension (iii) Water loss in liquid phase (d) Guttation (iv) Attraction towards polar surfaces

( a ) - ( ii ) ; ( b ) - ( iv ) ; ( c ) - ( i ) ; ( d ) - ( iii )

( a ) - ( iii ) ; ( b ) - ( iv ) ; ( c ) - ( ii ) ; ( d ) - ( i )

( a ) - ( iii ) ; ( b ) - ( i ) ; ( c ) - ( iv ) ; ( d ) - ( ii )

( a ) - ( ii ) ; ( b ) - ( i ) ; ( c ) - ( iv ) ; ( d ) - ( iii )

MEDIUM

Earn 100

What is guttation? Explain with help of example.

Important Questions on Transport in Plants

HARD

Biology>Plant Physiology>Transport in Plants>Transpiration

"Transpiration is a necessary evil". Discuss.

EASY

Biology>Plant Physiology>Transport in Plants>Transpiration

Draw a diagram of stomata of Rheo leaf and write any two functions of stomata.

MEDIUM

Biology>Plant Physiology>Transport in Plants>Transpiration

Explain Transpiration pull theory.

MEDIUM

Biology>Plant Physiology>Transport in Plants>Transpiration

Xylem translocate

MEDIUM

Biology>Plant Physiology>Transport in Plants>Transpiration

Three uniformly watered plants i, ii and iii were kept in 45% relative humidity, 45% relative humidity with blowing wind and 95% relative humidity, respectively. Arrange these plants in the order (faster to slowest) in which they will dry up.

EASY

Biology>Plant Physiology>Transport in Plants>Transpiration

A column of water within xylem vessels of tall trees does not break under its weight because of:

HARD

Biology>Plant Physiology>Transport in Plants>Transpiration

"Transpiration is a necessary evil". Explain.

MEDIUM

Biology>Plant Physiology>Transport in Plants>Transpiration

Which of the following facilitates opening of stomatal aperture?

MEDIUM

Biology>Plant Physiology>Transport in Plants>Transpiration

Study the diagram and the list given below.

Question Image

i) Chloroplast

ii) Epidermal cell

iii) Guard cell

iv) Subsidiary cell

v) Stomatal pore

The correct match is

EASY

Biology>Plant Physiology>Transport in Plants>Transpiration

Given below is a diagram of the stomatal apparatus. Match the labels with the corresponding names of the compounds.

Question Image

Choose the correct combination.

EASY

Biology>Plant Physiology>Transport in Plants>Transpiration

Which one of the following anatomical structures is involved in guttation?

HARD

Biology>Plant Physiology>Transport in Plants>Transpiration

Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening, carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of the following options:

HARD

Biology>Plant Physiology>Transport in Plants>Transpiration

A submarine has a window of area

30 \times 30 {cm}^{2}

on its ceiling and is at a depth of

100 m

below sea level in a sea. If the pressure inside the submarine is maintained at the sea-level atmosphere pressure, then the force acting on the window is (consider density of sea water

= 1.03 \times 10^{3} kg m^{- 3}

acceleration due to gravity

= 10 m s^{- 2}

MEDIUM

Biology>Plant Physiology>Transport in Plants>Transpiration

Given below are two statements:

Statement I: The forces generated by transpiration can create pressures sufficient to lift a xylem sized column of water over 130 metres high.
Statement II: Transpiration cools leaf surfaces, sometimes 10 to 15 degrees, by evaporative cooling.

In the light of the above statements, choose the most appropriate answer from the options given below:

MEDIUM

Biology>Plant Physiology>Transport in Plants>Transpiration

Match List - I with List - II.

List-I		List-II
(a)	Cohesion	(i)	More attraction in liquid phase
(b)	Adhesion	(ii)	Mutual attraction among water molecules
(c)	Surface tension	(iii)	Water loss in liquid phase
(d)	Guttation	(iv)	Attraction towards polar surfaces