WorksheetsEnd of unit quiz for plants MCQ
Total questions: 30
Worksheet time: 50mins
Where does photosynthesis occur in this rose bush?
in part Q only
in part R only
in part R and S only
in all the parts
Aerobic respiration:
only occurs in plant leafcells when it is light
does not occur in plants
occurs in all plant cells all of the time
only occurs in plant cells when it is dark
what does this graph show?
The more light, the faster photosynthesis gets, until a certain level amount of light is reached and it can go no faster.
The more light,the faster photosynthesis gets,but above a certain amount of light photosynthesis slows down.
The faster the photosynthesis gets,the more light is produced
The less light,the faster photosynthesis gets,until it can get no faster
Leaves are often wide so that they can:
provide shelter for animals living under them
float to the ground when they drop in autumn
absorb as much sunlight as possible
catch as much rain as possible
Roots are adapted to their job by:
having many branches and being spread out
having cells that can respire
having cells that can photosynthesise
being a pale colour
If plants do not get enough water they start to
grow towards the light
grow bigger roots
shrink
wilt
This picture shows a cell from a root.What is it called?
xylem cell
root hair cell
root extension cell
root palisade cell
Plants often turn some of the food they make into another substance for storage. The name of this substance is:
glucose
fiber
starch
pasta
Look at the graph. It shows the different amounts of growth of a plant at different greenhouse.The plant grows best at the temperature marked X.
What temperature is X most likely to be?
above 50 °C
between 20 °C and 30 °C
between 10 °C and 20 °C
lower than 5 °C
One important type of minaral salt is:
calcium
sodium chloride
potassium nitrate
nitrate
What would be the effect on this food web if insecticide were sprayed on the area?
The number of wrens would go down
The number of wrens would go up
The number of wrens would stay the same
the rose bush would die
Look at the food web. Which organisms could be used as a biological control agent for aphids?
wrens
aphids
lacewings
rose bushed
Plants are important in keeping the amount of carbon in balance because:
they peoduce carbon,which can be harvested
they use oxygen
they release carbon dioxide
they remove carbon dioxide from the atmosphere
Rita's class was asked to write down the word equation for photosynthesis. Four of different answers produced by the class are listed below. Which one is corret?
oxygen + glucose → carbon dioxide + water
oxygen + water → carbon dioxide + glucose
carbon dioxide + water → glucose + oxygen
oxygen + carbon dioxide → water + glucose
Which do phloem cells transport?
glucose
water
minerals
carbon dioxide
What do you call the process in which water moves from an area of high concentration to an area of low water concentration?
transpiration
evaporation
osmosis
diffusion
Which event will cause the stomata to open?
high concentration of carbon dioxide in the leaf
low concentration of carbon dioxide in the leaf
high concentration of oxygen in the leaf
low concentration of oxygen in the leaf
what are xylem cells made of?
dead cells
living cells
starch
sugar
These are animals that eat and damage crops and so can be a problem for farmers.
insects
weeds
pests
fungi
What do you call the chemical that is used to kill the weeds?
insecticide
pesticide
herbicide
weedicide
Name the 3 minerals that the plants need. These minerals form the building blocks of vital cell component.
(a)
What is the name of the process by which a plant produces biomass?
(a)
State the source of the energy for the process of photosynthesis.
(a)
Describe how you would test a sample of biomass to show the presence of starch?
(a)
Explain what effect do you think an increase in the level of atmospheric carbon dioxide would have on the rate at which photosynthesis takes place:
(a)
Explain what effect do you think decrease in the amount of chlorophyll in the leaf cells would have on the rate at which photosynthesis takes place:
(a)
Fill in the blank: Organisms that share a habitat have to (a) with each other for limited living resources.
What do you call the farming technique in which a farmer uses another living organism to control the problm with pests?
(a)
The toxins from the pesticide can be passed on in a food chain and gets more concentrated at each step. What do you call this phenomenon?
(a)
It is the process in which the plants lose water by evaporation.
(a)
