WorksheetsTeam Quiz Grade 8
Total questions: 36
Worksheet time: 21mins
What are the 3 organs of a plant?
veins, root hairs and xylem
stoma, stomata and root hairs
roots, glucose and leaves
roots, stem and leaves
What is the purpose of the XYLEM?
To bring food from the soil to the whole plant.
To carry water and nutrients from the roots to the whole plant.
To carry food from the chloroplasts around to all parts of the plant.
If plants don't store up water, how does water leave the plant?
The roots get rid of excess water.
Most plants DO store water.
It is released from the leaves by TRANSPIRATION.
What is the name of the microscopic holes in leaves that are opened and closed to allow water to TRANSPIRE?
water doors
stomata
leaf eyes
transpiration holes
When water moves through the plant's xylem, what phase is it in?
Solid
Liquid
Gas
When water TRANSPIRES from the stoma into the atmosphere, what phase is it in
Solid
Liquid
Gas
Which is true?
99% of water taken by the plant evaporates through transpiration
9% of water taken by the plant evaporates through transpiration
Evaporation through transpiration accounts only for 1% of all the water the plant takes in
Evaporation through transpiration is minuscule
which one of the following means light intensity
dark
day
brightness
night
which of the following parts of a plant absorbs water?
flower
leaf
stem
root
on which of the days would the rate of transpiration be high?
rainy day
no sun shine, still wind
hot bright day
still wind, rainy day
what are the substances that leaves a plant through the stomata on a bright day?
oxygen and water
carbon dioxide and glucose
water vapour and nector
oxygen and water vapour
which one of the following is the reason why a plant loses much water at the lower surface of the leaf?
effect of gravity
water is heavier than air
there are more stomata at the lower surface
the upper surface blocks the passage of water
which one correctly identifies Q, W, X?
x is transpiration
Q is rain
W is transpiration
X is heat
Two products produced by plants via photosynthesis are _______________ and _______________.
Glucose and water
Carbon dioxide and glucose
Oxygen and glucose
The Sun and water
What do you call the additional layer around the outside of plant cells that is made from cellulose that protect and give shape?
Cell Wall
Chloroplast
Cell Membrane
Golgi Complex
Plants make their own food through a process called what?
photosynthesis
ATP
chlorophyll
structure and support
For example: measuring the amount of mold on bread
If I want to check the importance of soil for plants' growth, what should the variable be?
Temperature
Water
Soil
Light
What is letter "D" pointing to?
upper epidermis
palisade mesophyll
spongy mesophyll
bundle sheath
Recall the main role of the specialised plant cell below.
Root hair cells
Open/close stomata
Photosynthesis
Absorb water/minerals
