1. How do the processes of photosynthesis and respiration work together to support life on earth?

3. photosynthesis
the process where plants use light energy from the Sun to make food

4. cellular respiration
the process where glucose is broken down to release energy

6. chloroplasts
organelles which use the energy from the sun to make food for plants

7. Chloroplasts
Within the cells of the leaves the chlorophyll-containing organelles called chloroplasts carry out photosynthesis.
Life on Earth depends on photosynthesis. Without it there would be no green plants, and without green plants there would be no animal life.

8. Chlorophyll
Chlorophyll is a green photosynthetic pigment found in plants, algae, and cyanobacteria.
Chlorophyll is an essential component of photosynthesis, which helps plants get energy from light.

9. Chloroplasts
A single square inch (6.5 square centimeters) of an elm leaf may have 250 million chloroplasts, and a mature elm tree may have 100,000 leaves.

10. Glucose
The sugar molecule formed in this process is glucose, a simple sugar.
Enormous numbers of such molecules are produced in every chloroplast during each second of sunlight.
Some of the glucose produced during photosynthesis is used by the plant in the process of respiration to generate other forms of energy.

11. The tiny openings called stomata usually occur on the lower surface of the leaf.
Stomata permit gases to enter the leaf and permit gases and water vapor to leave the leaf. If the stomata were on the side of the leaf exposed to sunlight, the leaf would lose too much water.

13. mitochondria
the powerhouse of the cell which releases energy from food

14. photosynthesis
Photosynthesis and cellular respiration are opposite processes.
Photosynthesis is the making of glucose using energy from the Sun.

15. cellular respiration
Cellular respiration is the process of burning glucose/sugar for energy.
Almost all living things use cellular respiration.
Plants also have mitochondria. They also convert sugar into energy.
Plants also go through cellular respiration.

16. Photosynthesis What is it? What is the purpose?
the process where plants make food
Where does it take place?
only in the chloroplasts of plant cells (or in plant-like organisms)

17. Photosynthesis What is needed or required? energy from the Sun
water from rain or some other source
carbon dioxide from the air

18. Photosynthesis What is produced?
glucose (sugar) which is the plant’s food
oxygen that is released into the air
animation

19. Photosynthesis
Purpose
the process where plants make food
Takes place in
takes place only in the chloroplasts of plant cells
Requires
energy from the Sun
water from rain or some other source
carbon dioxide from the air
Produces
Glucose (sugar) which is the plant’s food
Oxygen that is released into the air

21. Cellular Respiration What is it? What is the purpose?
the process where energy is taken out of food
Where does it take place?
takes place only in the mitochondria of all cells

22. Cellular Respiration What is needed? glucose (sugar) from food
oxygen from the air

23. Cellular Respiration What is produced? energy for the cell
water (vapor) and other substances
carbon dioxide which is released into the air
animation

24. Photosynthesis
Respiration
Purpose
the process where plants make food
the process where energy is taken out of food
Takes place in
takes place only in the chloroplasts of plant cells
takes place only in the mitochondria of all cells
Requires
energy from the Sun (sunlight)
water
carbon dioxide
glucose /sugar (from food
oxygen (from the air)
Produces
glucose /sugar
oxygen (that is released into the air)
energy for the cell
carbon dioxide (which is released into the air)

25. How are the two
processes connected?

27. The oxygen that animals use for respiration was put into the air by plants from the process of photosynthesis.

28. The carbon dioxide that plants use for photosynthesis was put into the air by animals from the process of respiration.

29. It is a mutually beneficial relationship. (They help each other.)
The waste products of plants/ photosynthesis are needed by animals; the waste products of respiration are needed by plants.