The root system which can get water from deep underground sources is:
a
Fibrous roots
b
Tab roots
c
Storage roots
d
Root nodules
2
Which of the following is not an organ of plant?
a
Epidermis
b
Root
c
Stem
d
Leaf
3
Vascular bundles are present in every part of the plant. They are made up of:
a
Xylem only
b
Phloem only
c
Xylem and phloem
d
Xylem, phloem and root hair cells
4
Amna liked to grow plants on her terrace. The plants were getting light and water everyday but the were not growing properly. What suggestion can you give her to improve plant growth?
a
Add sugar to plants pots
b
Give water once a weak
c
Add compost fertilizer to plants pots
d
Shift them indoors
5
If water available to plants become less, then stomata are closed even at daytime. This protects plants form:
a
Photosynthesis
b
Respiration
c
Wilting
d
Transport of water
6
The protective layer around plant parts is:
a
Epidermis
b
Cortex
c
Mesophyll
d
Vascular bundle
7
If the concentration of carbon dioxide increases in the air during daytime the process of:
a
Photosynthesis will decrease
b
Respiration will decrease
c
Photosynthesis will increase
d
Respiration will increase
8
Plants perform respiration all the time. The purpose of respiration in plants is to:
a
Prepare food
b
Release energy
c
Absorb energy
d
Maintain healthy growth
9
If you stay under trees at night, you can feel dizziness due to:
a
High level of oxygen and low level of carbon dioxide
b
Low level of oxygen and high level of carbon dioxide
c
Poisonous gases released by trees
d
Ghosts living in trees
10
Which of the following is the correct word equation for respiration?
a
Carbon Dioxide + Water → Glucose + Oxygen
b
Carbon Dioxide + Water + Sunlight → Glucose + Oxygen
c
Glucose + Oxygen → Carbon Dioxide + Water
d
Glucose + Oxygen → Carbon Dioxide + Water + Energy
11
The first cell formed due to the fusion of reproductive cells in plants is called:
a
Embryo
b
Zygote
c
Root
d
Stem
12
The outermost layer of a root is called ...........
a
Epidermis
b
Endomermis
c
Cortex
d
Xylem
13
The structure in plants used to produce food for plant is:
a
Stem
b
Root
c
Branch
d
Leaf
14
The flat green part of leaf is called:
a
Blade
b
Lamins
c
Both a and b
d
None of these
15
The middle strong vein in leaf is called:
a
Blade
b
Petiole
c
Midrib
d
None of these
16
The tissues used to conduct water in plants are:
a
Zylem tissue
b
Phloem tissue
c
Leaf
d
Stem
17
The main function of ............... tissue is to store food in plants.
a
Xylem
b
Parencyma
c
Phloem
d
Stometa
18
Large number of stomata are found on .............. side of leaf.
a
Lower
b
Upper
c
Middle
d
None of these
19
Blue and .......... light is absorbed by chlorophyll.
