Download questions about photosynthesis

Photosynthesis
Name
___________________________
Teacher ___________________________
Type answers to the following questions.
1
If the rate of photosynthesis is increased, what will happen to the
rate of growth and development?
2
Answer the following true/false statements about photosynthesis.
Code each of the statements T if you think they are TRUE and F if
you think they are FALSE.
a
Sunlight is essential for the photosynthesis reaction.
b
Photosynthesis takes place in all parts of the plant.
c
Sugars and starch are carbohydrates.
d
Water is taken into the plant through the leaves.
e
Carbon dioxide is taken into the plant through the
stomata.
f
As the intensity of light increases the rate of
photosynthesis will continue to increase indefinitely.
g
Tropical plants have a greater potential for maximum
growth than temperate plants.
h Water availability has no effect on photosynthetic rate.
3 Rewrite each of the false statements so they are correct.
4
A farmer growing flowers in glasshouses achieves higher
temperatures inside the glasshouse than outside. This is due to the
solar radiation trapped in the glasshouse during the day. Carbon
dioxide is also added to the air during the day to increase the
photosynthetic rate of the crop.
The farmer is aiming to increase the rate of photosynthesis of the flower
crop and hence increase the yield. To ensure that this occurs, the
farmer needs to reduce the effects of other limiting factors.
Identify two factors that could limit the photosynthetic rate of the crop
and describe how each one would have an effect on the final growth of
the crop. (Assume that temperature and carbon dioxide levels would
not be limiting.)
1
2004
5
In some crops, for example tomatoes, pruning is carried out to
reduce the leaf cover and thus the effect of shading. Explain why a
farmer would want to prune back some of the leaf cover. What
effect would pruning have on a crop where the marketable product
is not the leaves?
2
2004