Photosynthesis. Engage: Warm Up Graph the following information to the best of your ability. Remember… where does the dependent variable go? Where does.

Photosynthesis

Engage: Warm Up

Graph the following information to the best of your ability. Remember… where does the dependent variable go? Where does the independent go?

A student is observing how tall a plant will grow in different amounts of light. This is what they found after letting the plants grow for 3 weeks:

Plant in the window: 10 inchesPlant sitting near lamp: 8 inchesPlant sitting inside of a drawer: 3 inches

Photosynthesis

CO2 + H2O + Sun Light Gives you

Carbohydrates + O2

“photo” = light “synthesis” = to put together

Photosynthesis

CO2 + H2O + Sun Light Gives you

Carbohydrates + O2

Carbon dioxide

Water

Sugar (glucose) Oxygen

Photosynthesis

CO2 + H2O + Sun Light Gives you

Carbohydrates + O2

1. REACTANTS (what you start with)

2. PRODUCTS (what you end with)

3. Which cellular process take in energy from the sun to make glucose?

Photosynthesis!

4. What is glucose?

Glucose is sugar! Glucose is food for

the plant.(Remember ose=sugar)

Chloroplastas

Nucleus

Cell WallChloroplasts

Nucleus

Cell Wall

5. Where does it happen in the cell??

6. What does a

chloroplast look like?

Draw in your notes… a circle with

something that looks like stacked on the

inside.

7. What 2 structures are in plant cells only?

Cell wallChloroplast &

8. What gas is TAKEN IN during photosynthesis?

8. What gas is TAKEN IN during photosynthesis?

Carbon Dioxide (CO2)

Carbon Dioxide enters the plant through stomata (tiny holes) in the leaves.

9. What gas is RELEASED during photosynthesis?

9. What gas is RELEASED during photosynthesis?

Oxygen (O2)

Oxygen leaves the plant and humans and animals breathe it in!

10. Draw out what photosynthesis looks like ….What goes in?What comes out?

11. Does photosynthesis release or absorb energy?

Light Energy!

CO2 + H2O +

Carbohydrates(glucose) + O2

11. Does photosynthesis release or absorb energy?

Light Energy!

CO2 + H2O +

Carbohydrates(glucose) + O2

Photosynthesis absorbs energy from the sun.

12. What 3 Factors affect the rate of photosynthesis?

CO2 + H2O + Sun Light Gives you

Carbohydrates + O2

“photo” = light “synthesis” = to put together

CO2 + H2O + Sun Light

13. Where does carbon dioxide (CO 2) come from?

CO2CO

2

CO2

CO2

Humans (and other organisms) breathe in oxygen and release carbon dioxide.

14. What is the difference between a heterotroph and autotroph?

• Heterotrophy are consumers who survive off of plants.

• Autotrophs are plants that make their own energy.

15. What organisms release carbon dioxide?

(Heterotrophs)Humans…Dogs…Cats…Fish…Insects…And the list goes

on…

16. What organisms release oxygen?

“Autotrophs”(Plants!!)Flowers…Grass…Trees…Shrubs…And the list goes on…

Photosynthesis Cheer!

CO2 + H2O + Sun Light Gives you

Carbohydrates + O2

Marine Environment ConnectionSubmerged Aquatic Vegetation

• Do you know what SUBMERGED AQUATIC VEGETATION is?

• Try common sense…• Video on Baltimore Citizens and the Chesapeake

Bay.• http://www.chesapeakebay.net/videos/clip/

chesapeake_unscripted_baltimore_md

NOW YOU KNOW!

Marine Environment ConnectionSubmerged Aquatic Vegetation

• Video on the importance of Bay grasses.• Why are Bay grasses important? • http://www.chesapeakebay.net/videos/clip/

bay_grasses

SAV PLANTS

Marine Environment ConnectionSubmerged Aquatic Vegetation

• Video on secchi disc and water clarity.

• How is the secchi disc used? Why is water clarity important to the process of photosynthesis?

• http://www.chesapeakebay.net/videos/clip/bay_101_water_clarity

SECCHI DISC

Station 1-What is wrong with this picture?

How are the SAV plants an indicator of good health in the Bay?

Station 2-What is GOOD about this picture?

How is the reading on this sacchi disk? Explain how this will affect SAV plants.

Station 3-What is wrong with this picture?

How is the reading on this sacchi disk? Explain how this will affect SAV plants.

• Compare these two pictures. Which reading would be more advantageous for SAV plants? Why?

Station 4-What is happening with this picture?

Exit QuizEXIT SLIPAnswer the 8 questions based on the picture:

BI G QUESTIONS:BI G QUESTIONS:1.What do humans give Plants?1.What do humans give Plants?2. What do plants provide 2. What do plants provide For humans?For humans?3. Where exactly in a leaf3. Where exactly in a leafCell does photosynthesisCell does photosynthesisHappen?Happen?

4. Gas leaving plant 4. Gas leaving plant

5. Other product remains in 5. Other product remains in Plant (itPlant (it’’s an organic molecule)s an organic molecule)

FOOD for plantFOOD for plant

6. Starts the reaction.6. Starts the reaction.

7. Gas entering plant7. Gas entering plant

8. Other reactant8. Other reactantTo the To the

PhotosyntheticPhotosyntheticReaction.Reaction.(LI QUI D)(LI QUI D)

Exit Quiz

• Drill: • 1) Write the formula for photosynthesis. Hint:• ______ + _______ + ______ _______ + _______• 2) In the formula you wrote for #1, CIRCLE the 2

energy sources, UNDERLINE the 2 gases, and put a BOX around the liquid.