In a photosynthesis experiment, a plant is left in bright sunlight for several hours. A leaf is then
removed from the plant and tested for starch, using iodine solution.
The diagram shows the leaf from the plant that w
...
In a photosynthesis experiment, a plant is left in bright sunlight for several hours. A leaf is then
removed from the plant and tested for starch, using iodine solution.
The diagram shows the leaf from the plant that was used in the experiment.
white area
green area
Which diagram shows the result of the experiment?
A B C D
iodine solution
turns blue /black
iodine solution
stays brown
key
2 Which substance, needed for protein synthesis, is carried into a leaf from the stem?
A carbon dioxide
B nitrate
C oxygen
D starch
3 Which two substances are the products of photosynthesis?
A carbon dioxide and glucose
B carbon dioxide and water
C oxygen and carbon dioxide
D oxygen and glucose
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/4 Four test-tubes are set up as shown in the diagram and left in full sunlight.
After several hours, which test-tube contains the most dissolved oxygen?
A B C D
water
snail
water
water
pond
pond weed
weed
water
snail
5 Plants manufacture their own supplies of carbohydrate.
What are the raw materials and the waste product of this process?
raw materials waste product
A
B
C
D
carbon dioxide and chlorophyll
carbon dioxide and water
oxygen and chlorophyll
oxygen and water
oxygen
oxygen
carbon dioxide
carbon dioxide
6 A plant with variegated leaves has the starch removed from its leaves by placing it in a dark
cupboard for 48 hours.
Black paper is then fixed on one leaf as shown and the plant is exposed to light.
After 24 hours, which part of the leaf contains starch?
green region white region
black paper on
both sides of leaf
A B
C
D
Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/7 A plant with striped leaves similar to the one below was kept in bright light for six hours.
white stripe
green stripe
A leaf was taken from the plant and the chlorophyll removed. It was then tested for starch using
iodine solution.
Which diagram shows the result of the test?
A
yellow-brown
blue-black
white
blue-black
B
blue-black
green
C D
yellow-brown
green
8 Apparatus was set up as shown.
air
sodium
hydroxide
solution flask X
black
paper
plant
flask Y
to
pump
limewater limewater
Sodium hydroxide removes carbon dioxide from the air. Limewater goes cloudy if carbon dioxide
is bubbled through it.
What happens to the limewater in flasks X and Y when the pump is switched on?
flask X flask Y
A goes cloudy goes cloudy
B goes cloudy stays clear
C stays clear goes cloudy
D stays clear stays cl
[Show More]
.png)
