Photosynthesis

Question 1

What is the purpose of photosynthesis and what type of cells carry it out?

Answer 1

• sunlight energy is converted to energy of glucose
• carried out by plants and other autotrophs

Question 2

Where does photosynthesis occur and when?

Answer 2

• occurs in the CHLOROPLAST
• only occurs during the day

Question 3

What is the worded and a balanced chemical equation for photosynthesis?

Answer 3

Worded:
carbon dioxide + water → glucose + oxygen

Balanced:
6CO2 + 6H2O → C6H12O6 + 6O2

Question 4

Know the structure of a chloroplast.

Answer 4

STROMA - liquid filling inside
GRANA - stacks containing thylakoid in the inner membrane where light reactions occur
THYLAKOID - contains all chlorophyll in the organelle
CHLOROPHYLL - green light absorbing pigment
INNER/OUTER MEMBRANE

Question 5

Name the TWO stages of photosynthesis and where they occur in a chloroplast:

Answer 5

1) Light Dependent Reaction -
what: H20 is split by light energy to produce energy carriers(ATP and NADPH)
location: thylakoid membrane

2) Calvin Cycle -
what: energy transferred form ATP and NADPH to carbon dioxide to form glucose
location: stroma(cytoplasm of chloroplast)

Question 6

What goes into and what is made in each of these two stages.

Answer 6

1) LD -
input: H2O, light energy
output: oxygen, energy carriers(ATP and NADPH)

2) CC -
input: carbon dioxide, energy carriers
output: glucose