Photosynthesis L1-L2

Question 1

Name the 2 photo systems?

Answer 1

Photo system 1 and 2

Question 2

What is the term photolysis?

Answer 2

The splitting of water using light energy

Question 3

What is the formula for photosynthesis?

Answer 3

6CO2 + 6H2O + light energy = 6O2 + C6H12O6

Question 4

What is ATP and what is it used for?

Answer 4

Adenosine triphosphate, the source of energy for use and storage in a cell. Light energy must be stored in ATP molecules before glucose is made.

Question 5

The function of the antenna chlorophyll and carotenoid molecules?

Answer 5

Capture protons (light particles) and transfer energy to electrons

Question 6

What is the Thylakoid membrane?

Answer 6

Found inside the chloroplast, they are the site of light dependant reactions. Found in stacks.

Question 7

What is a stack of thylakoid membranes called

Answer 7

Granum or grana

Question 8

What is the Phloem

Answer 8

Living tissue that transports sugars

Question 9

What is the stomata

Answer 9

Pores that allow for gas exchange

Question 10

What is the xylem

Answer 10

Dead cells that transport water

Question 11

Why do leaves change colour in the fall?

Answer 11

Chlorophyll breaks down allowing to see accessory pigments

Question 12

When an atom is oxidized it produces?

Answer 12

NADP+ (loses electrons)

Question 13

When an atom is reduced it produces?

Answer 13

NADPH (gains electrons)

Question 14

What is a photo system?

Answer 14

Clusters of chlorophyll embedded in the thylakoid membrane

Question 15

What happens in photo system 2?

Answer 15

Light strikes chloroplast, protons exite chlorophyll molecules

Question 16

What does the ATP synthase do?

Answer 16

Provides the only pathway for the H+ molecules to move out

Question 17

What is CHEMIOSMOSIS?

Answer 17

The ATP synthase enzyme

Question 18

What happens in photosystem 1?

Answer 18

Exited electrons used to produce NADP+ to NADPH