Photosynthesis

Question 1

Photosynthesis Equation

Answer 1

6CO2 + 6H2O —-> C6H12O6 +6O2

Question 2

Photosynthesis

Answer 2

Uses solar energy to convert water and carbon dioxide into the chemical energy of glucose and oxygen.

Question 3

Grana

Answer 3

Site of the light dependent reactions of photosynthesis. Each granum is made up of individual thylakoid discs. These discs are packed with the light absorbing pigment chlorophyll.

Question 4

Stroma

Answer 4

Site of light independent reactions of photosynthesis

Question 5

Light Dependent Reactions

Answer 5

1. Light and Water and required for this process
2. Photolysis occurs. This is the splitting water molecules
3. Oxygen gas is made as a byproduct
4. Energy molecules are formed (ATP and NADPH) There molecules power the light independent reactions.

Question 6

Light Independent Reactions

Answer 6

1. Dark reactions (light independent) occur in the stroma
2. ATP and NADPH molecules created during the light reactions power the production of glucose
3. The carbon in CO2 is transferred into the carbon in glucose

Question 7

How does CO2 get into the plant and O2 out?

Answer 7

• Guard cells are found within the underside of the leaf
  -They are two kidney bean shaped cells that touch at their ends
  -When they open, they let CO2 in and O2 and water vapor out
  -They can close in times of drought to conserve water

Question 8

Cuticle

Answer 8

Waxy layer, to prevent water loss

Question 9

Upper Epidermis

Answer 9

Protection

Question 10

Palisade Mesophyll

Answer 10

Less Chloroplast contains air space and veins

Question 11

Spongy Mesophyll

Answer 11

Less Chloroplast contains air space and veins

Question 12

Vein

Answer 12

Contain xylum (transports water) and Phloem (transports sugar)

Question 13

Lower Epidermis

Answer 13

Protection

Question 14

Stoma(ta)

Answer 14

Openings in the lower epidermis which are controlled by guard cells

Question 15

Absorption by the Roots

Answer 15

Water moves from high concentration in the soil to lower concentration in the roots (osmosis) water will then enter the xylem of the roots

Question 16

Capillary Action

Answer 16

As water pressure builds up in the roots xylem it will give the water a push into the xylem of the stem. Due to cohesion and adhesion water sticks together as a continues column

Question 17

Transpiration

Answer 17

Water evaporates out of the stomata. This acts like a straw pulling water molecules continuously upward