C1.3 - Photosynthesis

Question 1

what is photosynthesis

Answer 1

process of converting light energy to chemical energy done by producers

Question 2

photosynthesis equation

Answer 2

H2O + CO2 -> light -> C6H12O6 + 6O2

Question 3

photosynthesis word equation

Answer 3

water + carbon dioxide -> light -> glucose + oxygen

Question 4

what does photosynthesis release

Answer 4

oxygen

Question 5

photolysis

Answer 5

using light energy to split water

Question 6

chromatography

Answer 6

separation of pigments

Question 7

process of chromatography

Answer 7

1. transfer plant pigments to chromatography paper
2. allow chromatography solvent to be absorbed upward
3. separate pigments
4. calculate Rf value

Question 8

Rf equation

Answer 8

distance pigment travelled/distance solvent travelled

Question 9

colors vs pigments

Answer 9

colors: different wavelengths of light
pigments: absorb certain wavelengths of light

Question 10

pigments in plants

Answer 10

chloraphyll a
chloraphyll b
carotene
xanthophyll

Question 11

absorption spectrum

Answer 11

shows the wavelengths of light a pigment absorbs

Question 12

action spectrum

Answer 12

photosynthesis rates at different wavelengths (% max)

Question 13

excitation of electrons

Answer 13

energy used to raise electrons in pigments to a higher level

Question 14

limiting factors of photosynthesis

Answer 14

light intensity
temperature intensity
CO2 concentration