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WorksheetsPlant nutrition
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
The type of energy required for photosynthesis is
a)
heat
b)
light
c)
sound
d)
kinetic
2.
Which one of the following is NOT a chemical required for photosynthesis?
a)
water
b)
carbon dioxide
c)
chlorophyll
d)
light
3.
Which gas is produced by photosynthesis?
a)
oxygen
b)
carbon dioxide
c)
nitrogen
d)
methane
4.
The chemical formula for glucose is
a)
CO2
b)
C6H12O6
c)
C6H6O6
d)
C6H6O12
5.
A plant is destarched by
a)
adding iodine to it
b)
boiling it in ethanol
c)
keeping it in the dark for 48 hours
d)
using Benedict's reagent
6.
Testing this type of leaf can show that
a)
carbon dioxide is needed for photosynthesis
b)
light is needed for photosynthesis
c)
chlorophyll is needed for photosynthesis
d)
water is needed for photosynthesis
7.
a. add iodine to the leaf
b. boil leaf in water
c. boil leaf in alcohol
d. rinse leaf in water
The correct sequence used to test a leaf for starch from the steps above is:
b. boil leaf in water
c. boil leaf in alcohol
d. rinse leaf in water
The correct sequence used to test a leaf for starch from the steps above is:
a)
a b c d
b)
b c d a
c)
c d a b
d)
d c a b
8.
In this experiment what factor in photosynthesis is being investigated?
a)
need for water
b)
need for light
c)
need for carbon dioxide
d)
need for chlorophyll
9.
Which is the balanced symbol equation for photosynthesis?
a)
CO2 + H2O =
C6H12O6 + O2
C6H12O6 + O2
b)
6CO2 + 6H2O =
6C6H12O6 +6O2
6C6H12O6 +6O2
c)
6CO2 +6H2O =
C6H12O6 + O2
C6H12O6 + O2
d)
6CO2 + 6H2O =
C6H12O6 + 6O2
C6H12O6 + 6O2
10.
A plant photosynthesises but never respires
a)
True
b)
False
11.
A plant does not respire when there are light conditions around it
a)
True
b)
False
12.
The best conditions for photosynthesis are
a)
cold, dull, dry
b)
warm, bright,
high carbon dioxide
high carbon dioxide
c)
very hot, bright, dry
d)
cold, bright, low oxygen
13.
The central test tube contains pond weed and bicarbonate indicator. The purple colour suggests that
a)
this tube has been in the dark
b)
the pondweed has only been respiring
c)
the pondweed has been respiring more than photosynthesising
d)
the pondweed has been photosynthesising more than respiring
14.
At compensation point a plant is
a)
only photosynthesising
b)
respiring more than photosynthesising
c)
respiring at the same rate as photosynthesising
d)
respiring less than photosynthesising
15.
The rate of gas bubble formation could be increased by
a)
moving the lamp back a bit
b)
adding carbon dioxide to the water
c)
removing some leaves from the pondweed
d)
adding oxygen to the water
16.
The gas in the bubbles is
a)
oxygen
b)
air
c)
carbon dioxide
d)
hydrogen
17.
In the the graph, what factor is limiting the rate of photosynthesis at point X?
a)
light intensity
b)
water availability
c)
carbon dioxide concentration
d)
temperature
18.
In the the graph, what factor is limiting the rate of photosynthesis at point Y ?
a)
light intensity
b)
water availability
c)
carbon dioxide concentration
d)
temperature
19.
In a leaf what is the tissue which in which most gas exchange occurs?
a)
upper epidermis
b)
spongy mesophyll
c)
palisade mesophyll
d)
No options are correct
20.
Select ALL TRUE statements from this list
a)
The products of photosynthesis are used in respiration
b)
The products of respiration are used in photosynthesis
c)
Photosynthesis is an endothermic process
d)
Respiration is an exothermic process
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