8.3

Question 1

photosystems

Answer 1

there are clusters of chlorophyl and proteins. (in the thylakoid)

Question 2

calvin cycle

Answer 2

1. carbon dioxide from the environment enters the cycle.
2. this carbon dioxide is mixed with six . 5-carbon . molecules that were inside the chlorolast. THIS PRODUCES 12 3-carbon molecules.
3. atp and nadph are used to convert the 3-carbon molecules to higher energy forms. ATP and the NADPH convert to ADP and NADP+.
4. 2 of the 3-carbon molecules are released from the . cycle to produce sugars lipids and amino acids.
5. the remainig 3-carbon molecules are converted to 5-carbon molecules to begin the cycle all over again.
   It produce 6-carbon sugar, ADP and NADP+

Question 3

What factors affect photosynthesis?

Answer 3

Among the . most important factors that . affect photosynthesis are temperature, light intensity, and the availability of water.

Question 4

What does plants do to survive hot temperatures?

Answer 4

1. Have waxy coating on their leafs to reduce water loss.

2. To conserve water, plants close the small openings on their leaves that normally admit carbon dioxide.

Question 5

C4 plants

Answer 5

The calvin cycle is with 4 carbons
need extra energy from the ATP.
Examples: corn, sugar cane, and sorghum

Question 6

CAM plants

Answer 6

They open their openings on the night, carbon dioxide is combined with existing molecules to produce organic acids which trap the carbon between the leaves.
Examples: pineapple trees, cacti and ice plants.

Question 7

electron transport chain

Answer 7

electron carrier proteins that shuttle high-energy electrons during ATP-generating reactions.