WorksheetsChapter 1: The Leaf
Total questions: 30
Worksheet time: 15mins
A flattened green structure found in plants is called_______.
flower
node
internode
leaf
The point on the stem from where a leaf arises is called _______.
node
internode
petiole
leaf base
The outer edge of lamina is called ___________.
leaf blade
apex
leaf margin
internode
The lamina is attached to the stem by a short stalk called ________.
leaf base
apex
petiole
node
Fine lines forming a network throughout the body of leaf blade is/are called ________.
venation
veins
margin
lamina
Chlorophyll imparts _________ colour to the plant.
green
no colour
red
brown
Raw materials needed for photosynthesis are ____________.
air, water, chlorophyll
water, carbon dioxide, sunlight, chlorophyll
food, oxygen, water, chlorophyll
sunlight, water, air
Loss of water in the form of water vapour from the tiny pores of leaves is called __________.
photosynthesis
stomata
respiration
transpiration
Leaf with a single lamina is called ____________.
leaf
petiole
simple leaf
compound leaf
__________ has no axillary bud.
Simple leaves
Compound leaves
Reticulate leaves
Leaflets
The stalk of a compound leaf is called ___________.
lamina
petiole
pinna
rachis
Parallel venation is the characteristic of ____________.
a) monocot plants
b) dicot plants
c) conifers
d) both a and b
Reticulate venation is present in ____________.
Mango
Rose
Peepal
all of these
The arrangement of leaves on the stem is called _______________.
venation
phyllotaxy
leaflets
modification
Alternate, opposite and whorled are types of ___________.
venation
phyllotaxy
modification
leaflets
Oleander and asparagus have more than two leaves that arises at each node which shows ___________ phyllotaxy.
a) alternate
b) opposite
c) whorled
d) both a and b
Raina saw thin, coil-like structures in a pea plant. What do you think she saw?
spines
pitcher
creeper
tendrils
Two functions of spines in xerophytic plants are:
a) to protect and check loss of water
b) to protect and help in intake of lots of water
c) to protect and help in losing lots of water
d) both a and b
Examples of insectivorous plants are :
Drosera
Bladderwort
Pitcher plant
all of these
Main function of the leaf is to:
prepare food for the plant
protect the plant
anchor the plant
distribute food in the plant body
Which of the following is a modified leaf?
Spines of cactus
Maize
Sugarcane
Banyan
Plants like sweet potato and jasmine are easily grown through ___________.
transpiration in the leaf
spreading of roots
vegetative propagation
seed dispersal
Veins are present in ____________.
stems
roots
leaves
seeds
A leaf typically consists of ___________.
leaf base
stalk
leaf blade
all of these
Some leaves have patches of white or yellow or red colour. Such leaves are called __________.
variegated
non-green
parasitic
d) both a and b
Identify the type of leaves shown in image A and image B.
Both A and B are simple leaves
Both A and B are compound leaves
A has simple leaves and B has compound leaves
A has compound leaves and B has simple leaves
Observe the venation of the leaves and identify the kind of seed the plant will have.
Dicotyledonous
Monocotyledonous
Seedless
Cannot be ascertained
Compare the rate of transpiration in plant A with that of plant B.
Plant A > Plant B
Plant A < Plant B
Plant A = Plant B
Plant B > Plant A
Which part of the onion do we eat?
Root
Stem
Scale leaves
Fruit
Some plants are insectivorous because they ________________.
cannot photosynthesize
do not have leaves
like insects
need more nitrogen
