1. The student will:
Learn what photosynthesis is and how it helps plants.
Learn what a plant needs for photosynthesis.
Explain the significance of the processes of photosynthesis, respiration and transpiration to the survival of green plants and other organisms.

2. One of the most general distinctions among organisms is between plants, which use sunlight to make their own food (photosynthesis) and animals, which consume energy-rich foods.
Photosynthesis and cellular respiration are complementary processes.
Plants carry on photosynthesis and cellular respiration where food is broken down into energy. The requirements of one process are the products of the other.

3. What is photosynthesis?
Plants are producers
This means that they have to make their own food.
Plants combine sunlight, carbon dioxide and water to make their own food energy

4. Where does photosynthesis occur?
Photosynthesis uses chlorophyll which is in the chloroplasts which is found in the leaves of a plant.
The chlorophyll traps the suns energy which helps the plant make its own food
can only happen in daylight when there is sunlight

5. Glucose (sugar) created
released

6. Why do plants need glucose?
Glucose is the food for the plant. It gives the plant energy to grow.

7. How much glucose does a plant make?
Plants make enough glucose to be used during the night and on cloudy days when they don’t get sunlight. The extra glucose is stored in the plant’s leaves and other parts.

8. Why is photosynthesis important to us?
We cannot make our own food (glucose, energy) we must get our food from plants.
Plants are the first step in the food chain.
Animals get the energy stored in plants when they eat them.
During the process of photosynthesis, oxygen is produced. We use this oxygen to breathe.

9. http://earthguide. ucsd

11. http://studyjams. scholastic
Photosynthesis Song

12. Cellular Respiration
Plants need to convert the food that they made into energy
Plants use this energy to survive just like we use food energy to do work
Respiration can happen ANY time day or night – it does NOT need sunlight to occur
Occurs in all living things

13. What is the chemical equation for cellular respiration?

15. Observations?
The processes are opposite/complementary

16. Transpiration
During transpiration, there is a loss of water vapor through the stomata of the leaf. The guard cells control the opening and closing of the stomata
A.K.A: plant sweat
Fun Fact: Part of the reason being under a tree makes you feel cooler is because of transpiration

18. Transpiration
Cuticle: protectant film covering the epidermis. Waterproof
Epidermis: outside layer of the leaf
Guard cells: surround and control the opening and closing of the stomata
Stomata: tiny openings in the epidermis where water vapor and oxygen escapes and CO2 enters
Both of these help prevent water loss

19. Moving through the Plant
Xylem: sucks the water up through the stem & to the flower

21. And the cycle continues……………
Transpiration
Transpiration occurs when water is evaporated from the leaves through the stomata.
Xylem draws more water up through the roots to replace the evaporated water
And the cycle continues……………

22. Transpiration
Some leaves have more than a million stomata. In forests, trees need a large amount of water because about 98 percent of the water they take in is lost through the stomata.

23. In the desert, plants can survive with less water because the stomata of the plants do not open as wide and remain closed most of the time.
The leaves of tropical and temperate plants have stomata that are open longer periods of time and have larger openings than those of desert plants.
The time stomata remain open as well as the size of their openings are largely controlled by the availability of water and of sunlight.

24. What do you think would happen if we put a plastic bag over a leaf on a tree and left it over night?

25. https://www. classzone