Keywords - photosynthesis

Question 1

Chloroplast

Answer 1

Organelle in which photosynthesis reactions occur. Made up of thylakoids suspended in stroma.

Question 2

Thylakoid

Answer 2

Flattened membrane bound sacs found in chloroplasts that contain pigment chlorophyll. Site of light dependent reaction.

Question 3

Photoionization

Answer 3

Process in which light energy is absorbed by chlorophyll -> 2 electrons excited to a higher energy level + leave chlorophyll to be passed along electron transport chain.

Question 4

Photolysis

Answer 4

Process in which water mol. is split by light energy

Question 5

Chemiosmosis

Answer 5

Theory that explains how ATP is produced via ATP synthase during light dep. stage, due to protein gradient being created across thylakoid membrane.

Question 6

ATP synthase

Answer 6

Enzyme (channel protein) which catalyses formation of ATP (ADP + Pi) due to protons moving through it during light dep. stage.

Question 7

Rubisco

Answer 7

Enzyme which catalyses reaction to join one mol. of CO2 to RuBP during Calvin Cycle

Question 8

Triose phosphate (TP)

Answer 8

3-carbon mol. formed in Calvin cycle that can be used in plant cells to create organic mols eg. glucose, starch, cellulose (some used to regenerate RuBP)

Question 9

Glycerate 3-phosphate (GP)

Answer 9

3-carbon mol. formed in Calvin cycle (CO2 + RuBP) that is phosphorylated + reduced to form TP.

Question 10

Ribulose bisphosphate (RuBP)

Answer 10

5-carbon mol. formed in Calvin cycle by regeneration of TP (using ATP)