a) When the water content of the soil is low, the rate of Transpiration.....(increases/decreases)
b) The lower atmospheric pressure...... the rate of Transpiration.
c) The greater the leaf area the.... will be the rate of Transpiration.
d) The greater the stomatal aperture, ..... is the rate of Transpiration.
e) The greater is the humidity of air, the.......is the rate of Transpiration.
f) The higher is the temperature of air, the....is the rate of Transpiration.
g) The chemical used to reduce rate of Transpiration are called.....
h) The process in plants which is considered as ' price paid ' for photosynthesis is......
i) ...... has cooling effect on the leaves.
j) In Nerium, the stomata are present in.....
k) Loss of water through hydathodes is called....
l) Transpiration takes place through..... and.....
m) The presence of water can be detected by anhydrous.....
n) A ....... has two guard cells containing chloroplast.
o) Exchange of gases take through......
p) In submerged aquatic plants, stomata are....
q) The leaves of the..... plants have cuticular wax.
r) Potometer is an instrument which is used for measuring the rate of.......
s) .......is the process by which water is lost generally from leaves in the form of vapours.
t) The three types of Transpiration are.... , .... and.. Transpiration.
u) With an increase in the surface area of the leaves, the rate of Transpiration.......
v) Root pressure can be measured with a......
B) COMPLETE THE STATEMENT:::
a) Thick cuticle : .......
b) Stomata : Transpiration : : Hydathodes : ........
C) NAME THE FOLLOWING :::::
a) The structures which Transpiration takes place.
b) An experiment to demonstrate Transpiration.
c) Tiny epidermal pores through which guttation takes place.
d) The plants in which stomata are absent.
e) The plants having sunken stomata.
f) Time when stomata are open.
g) Time when stomata are generally closed.
h) A plant in which stomata are sunken.
i) Bean-shaped nucleated cell with chloroplast found around the stomatal opening in the leaves. Or
The cells which control the opening and closing of stomata.
j) The loss of water vapour from the aerial parts of a plant
OR
The process by which the aerial parts of a green plant give out water as water vapour.
k) The apparatus to measure the rate of Transpiration.
OR
An instrument used to measure the absorption of water due to Transpiration.
l) The paper which is used to show loss of water through stomata of a leaf.
m) Permanently open pores on the stem of a plant. OR
Aerating pores formed in the bark. OR
Opening on the stem through which Transpiration occurs
OR. Respiratory opening found on the stem of Woody plants.
n) The process in which a plant loses its water in the form of liquid through hydathodes. OR
Loss of water as droplets from the margins of certain leaves. OR
The process by which plants lose water in the form of droplets.
o) Minute opening formed in the epidermal layer of green leaves. OR
Structure through which most of the Transpiration takes place. OR
Opening found on the under surface of dorsiventral leaves.
OR.
Microscopic pores which are surrounded by two kidney-shaped guard cells and concerned with gaseous exchange.
p) An apparatus to compare the rate of Transpiration in cut shoot.
q) Exudation of sap from injured parts of a plant.
r) List three anatomical adaptations of the leaf that check excessive Transpiration. OR
What adaptations do plants have to minimize water loss. OR
List three devices by which the plants tend to reduce Transpiration.
s) Mention one condition in which stomatal opening gets closed.
t) List three conditions that favor (accelerate) Transpiration
u) List the factors affecting the rate of Transpiration.
v) Name three different kinds of structures of a plant from where Transpiration occurs.
w) List three ways a plant Transpires OR
Name three types of Transpiration.
x) What is wilting ? What are the causes of this conditions
y) What is the relationship between the rate of water absorption and the rate of Transpiration ?
z) Are Xylem vessels living or dead ?
a) What is Ganong's Potometer used for? Write any two limitations of this apparatus.
b) Give the exact location and one function of epidermis of plants.
c) Give the exact location and one function of Stomata.
D) MATCH THE FOLLOWING ::::
COLUMN.1. COLUMN.2
a) Transpiration. i) Cacti plants
b) Movement of water. ii) Stomata
c) Guttation. iii) Maize plant
d) Low rate of Transpiration. v) Xylem
e) High rate of Transpiration. vi) Hydathodes
E) REASON BEHIND::::
a) Why does Transpiration generally occur during day time?
b) Why do plants absorb more water than what is required by them.
c) Why do young plants wilt on a hot windy day ?
d) Why , during the day, Transpiration and photosynthesis are interlinked
e) Why , it is advisable not to sleep under a tree at night.
g) Why is Transpiration considered as a necessary evil ?
F) DEFINITION :::
a) Guttation
b) Stomatal Transpiration
c) Stomata
d) Ant-transpirants
e) Lenticular Transpiration.
f) Wilting
G) FUNCTION ::::
a) Stomata
b) Guard cells
c) Sunken stomata
d) Hydathodes
e) Lenticels
H) DIFFERENCE BETWEEN::::
a) Transpiration/Evaporation
b) Transpiration/ Guttation
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