CH 7 – Plants
Draw, label and color the picture of Photosynthesis on p. 217
Energy Processing in Plants
Put a check mark in the appropriate space to show which process is being
explained.
Process
Photosynthesis
Cellular
Respiration
1.
2.
3.
4.
5.
6.
7.
8.
Carbon dioxide is one of the reactants
Energy in the form of ATP is released
Glucose is a product
This occurs within chloroplasts
This process requires light energy
One of the products is water
Sunlight is needed for this process
This process takes place in
mitochondria
9. The result is a usable form of energy
called ATP
10. Oxygen must be present as a reactant
11. Life depends on this process
12. This occurs in plants
13. Oxygen is released from the plant
14. These processes are interrelated
15. Water molecules are split apart
16. Atoms combine to form sugar
17. This is required for growth and tissue
repair
18. It produces 90 percent of oxygen in
the atmosphere
19. How are photosynthesis and cellular respiration interrelated?
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LESSON 2 – PLANT RESPONSES - Highlight the best choice.
1. Light, touch, or gravity that causes plant growth toward or away from a
stimulus is a (chemical hormone, tropism).
2. A plant’s tropism to light is called (phototropism, gravitropism).
3. Bending toward the light is a (positive, negative) tropism.
4. If a planter is turned so the plant bends away from the light, the plant
will gradually (bend lower, straighten).
5. The plant’s stems (will, will not) continue to grow upward if the plant is
placed in the dark.
6. Roots that grow (toward, away from) the Sun help anchor the plant in
the soil.
7. Some plants respond to touch. This is called (thigmotropism,
photoperiodism).
8. A higher level of a plant hormone called (gibberellins, auxin) on the dark
side of the plant causes plant cells found there to grow longer.
9. When plant cells on the dark side of a plant grow longer, the plant
(bends, dies).