Date: 19/4/21
1. Fill in the blanks.
a) Pitcher
plant is an insectivorous plant with leaves in the form of a container.
b)
Fixed aquatic plants
breathe through pores on the upper surface
of leaves.
c) The large leaves of plants in plains allow
water to evaporate during the process
of
Transpiration .
2. Give one example
for each of the following:
a)
Desert plants
Cactus/date
palm
b) Floating plants
Duckweed/water
lettuce
3. State whether the following statements are true or false.
a) The kind of plants that grow in a particular region depend only on the climatic conditions. False
b)
Deserts are hot and dry regions that receive very little rainfall. True
c)
Oak trees lose their leaves
during spring. False
4. Explain the following
terms:
a)
Aquatic plants
Plants
that grow in water are called aquatic plants.
b) Habitat
The
place where a plant or an animal lives is called it’s habbitat.
5. Answer the following in 2 to 3 sentences.
a)
How do plants in coastal areas
survive the excess
salt and windy
weather?
Plants found in costal area have thick and shinning leaves
to reduce water loss.
The
roots of these plants and trees grows near the surface of the soil and spread out
over a wide area.
b)
How do the following adaptations help in the survival of plants growing in hilly regions?
i) The plants
are tall and straight.
It
enables them to receive sunlight and bear leaves throughout the year.
ii) The branches
slant downwards.
It
allows snow to slide down easily.
iii) The seeds are enclosed
in cones.
The
seeds of these plants are enclosed in cones which protect them against the cold
weather.
6. Give reasons.
a)
Coral root is a non-green plant.
Because
it doesn’t have chlorophyll.
b)
Leaves of
fixed aquatic plants have a waxy coating.
Leaves
of fixed aquatic plants have a waxy coating to ensure that water does not stick
to the leaves and it also prevents leaves from rotting.
7.
Radhika went for a trip to a desert area where she saw some cacti. Write any two adaptations that she may observe in the plant?
1-Cacti have thorns or spines
instead of leaves .
2-They have green fleshy stems.
 |
8.
 |
The given picture shows an underwater aquatic plant.
a)
Identify the plant.
Vallisneria
b) From where do these plants get carbon dioxide
for photosynthesis?
They
use carbon dioxide dissolved in water to perform photosynthesis.
c) Which gas is released
by the plant after the process of photosynthesis?
Oxygen
9. Fill in the missing letters
to obtain the words related
to type of plants.
a) TERRESTRIAL
b) I N SEC TIV OR OU S
c) S AP RO PHY T
IC
10.
Higher Order Thinking Skills
(HOTS)
What will happen if we
cut all the breathing roots of a mangrove
plant?
Mangroves
will not be able to survive as breathing roots help them to get air.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Teacher’s Signature: Date:
No comments:
Post a Comment
Note: only a member of this blog may post a comment.