1Formula for Photosynthesis?
6CO2+6H2O+light energy=C6H12O6+6O2
2How does CO2 enter the leaf?
Through the stomata
3What absorbs light(photons)? Then what happens?
Chloroplast pigments, they become excited and send the electron to the electron acceptor
4Is photosynthesis a redox reaction? Explain...
Redox reaction, reverses direction of electron flow in respiration
5What happens to H2O and CO2 in photosynthesis?
Water is oxidized into O2 and CO2 is reduced to C6H12O6 (glucose).
6What are chloroplast?
Double membrane organelle where photosynthesis occurs and creates glucose/oxygen
7What is the main function of pigments? Where are they located?
Absorb light, chloroplast.
8What part of the chloroplast are chlorophyll located?
Thylakoid membrane
9What form of energy is light classified as?
Electromagnetic energy (electromagnetic radiation)
10Wavelength is the distance between...
Wavelength is the distance between crests of electromagnetic waves
11Define electromagnetic spectrum...
The entire range of wavelengths of electromagnetic radiation
12What wavelengths does visible light consist of?
380nm to 750nm
13What particles make up light? Elaborate...
Photons, Shorter the wavelength of light, the greater the energy per photon.
14Define pigments...
Substances that absorb visible light, different pigments absorb different wavelengths
15What light works best for photosynthesis
Violet blue and Red light
16Name examples of accessory/atenna pigments...
Chlorophyll b and group of pigments called carotenoids
17Where do the electrons that enter photosystem 2 come from?
The oxidation of H2O
18What processes is photosynthesis made of?
Light reactions and The Calvin cycle
19What does light travel as?
A particle, photon
20What does pigment(chlorophyll) do with photons/light?
Molecule absorbs a photon, the molecules electrons are elevated to an orbital with more potential energy. Ground state to excited state.
21What are photosystems?
Structures located in the thylakoid membrane that contain several organized chlorophyll molecules. Helps create ATP and NADPH
22What are antenna pigments?
Pigment molecules that absorb and transfer sun energy to the reaction centers
23What are the 2 types of photosystems?
Photosystem 1, reaction center P700 and Photosystem 2, reaction center P680
24What are the functions of Photosystem 1 and 2?
Work together to use light energy to generate ATP and NADPH
25What are the 2 possible routes for electron flow?
Cyclic and Linear (noncyclic)
26Describe Linear (noncyclic) electron flow
Predominant route, produces both ATP and NADPH, Similar to Oxidative phosphorylation and contains the process of Chemiosmosis.