Chapter 6 Nutrition in plants

2. They can make their own food using small
inorganic molecules and light energy.
This process is called photosynthesis.
Word equation:
Carbon dioxide+water glucose+oxygen
6CO2 + 6H2O C6H12O6 + 6O2
Raw materials products
Light
chlorophyll
Light
chlorophyll
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8. How would you test for the
importance of light ?
How would you test for the
importance of CO2?
 how would you test for the
importance of chlorophyll?

9. Hint:
Soda lime
absorbs CO2
in air.

11. Hint:
Variegated
leaves have
yellow areas
with no
chloroplasts.

12. How could you test
the effect of:
Variable light
intensities?
Variable CO2
concentrations?
Variable
temperatures?

13. Nitrates: provide the plant with the
nitrogen needed to make amino acids
and thus proteins.
Magnesium: is needed to make
chlorophyll.
Predict how soil with no nitrates
/magnesium would affect plant
growth.

14. O2 level
falls