AP BIOLOGY

Detailed explanation-1: -So, the correct answer is ‘PSII, plastoquinone, cytochromes, PSI, ferredoxin’.

Detailed explanation-2: -1) Splitting of water molecules into hydrogen and oxygen by sunlight. 2) Absorption of light energy by chlorophyll. 3) Reduction of carbon dioxide to carbohydrates.

Detailed explanation-3: -Photosystem I vs. There are two types of photosystems in the light-dependent reactions, photosystem II (PSII) and photosystem I (PSI). PSII comes first in the path of electron flow, but it is named as second because it was discovered after PSI.

Detailed explanation-4: -Light dependent reaction involves four important stages – absorption of light energy, splitting of water molecules, release of oxygen, formation of energy carrying molecules – ATP and NADPH.