Photosynthesis

Where do the light reactions occur?

• Thylakoid space

• Lumen

• Thylakoid membrane

• Grana

Tags

NGSS.HS-LS1-5

The process of light oxidizing H2O into O2 is called

• Hydrolysis

• Photolysis

• Hydrophilic

• Dehydrogenase

What pigment molecule is NOT utilized in the light reactions of photosynthesis

• Chlorophyll a

• Chlorophyll B

• Carotene B

• Retinol

Tags

NGSS.HS-LS1-5

Light reactions are responsible for which of the following products

• ATP, NADPH, O2

• ATP, NADH. O2

• ATP, FADPH2, CO2

• CO2, ADP, NADPH

True or false: there is a cyclic and linear pathway for electrons to follow in the light reactions

• False

• True

What is the final electron acceptor in the light reactions?

• NADPH

• CO2

• O2

• FADPH2

Photosystem 2 is to P680 as Photosystem 1 is to

• P720

• P690

• P700

• P660

The light reactions of photosynthesis are akin to what process of cellular respiration?

• Glycolysis

• Pyruvate Oxidation

• Citric Acid Cycle

• Electron Transport Chain

Tags

NGSS.HS-LS2-5

What is the correct chemical formula for photosynthesis

• 6 CO2 + 12 H2O + light ——> sucrose + 6 H2O + 6O2

• 6 CO2+ 12 O2 + light ——> sucrose + 6 H2O + 6O2

• 6 CO2 + 12 H2O + light ——> glucose + 6 H2O + 6 O2

• 6 O2 + 12 H2O + light ——> glucose + 6 H2O + 6CO2

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What part of pigment molecules absorbs the photons and excites the electrons?

• Phosphate head

• Fatty acid tail

• Phytol Tail

• Porphyrin ring

Tags

NGSS.HS-LS1-5