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HB 3.1b
glossary flashcards
18
Biology
Not Applicable
09/09/2026

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Term
3-phosphoglycerate (3PG)
Definition
produced when CO2 is fixed to RuBP by RuBisCo
Term
Absorption spectrum
Definition
graph showing wavelengths of light absorbed by a pigment
Term
Action spectrum
Definition
graph showing the wavelengths of light involved in photosynthesis
Term
ATP synthase
Definition
membrane-bound enzyme that synthesises ATP
Term
Calvin cycle
Definition
carbon fixation stage of photosynthesis
Term
Carotenoids
Definition
extend the range of wavelengths absorbed and pass the energy to chlorophyll for photosynthesis.
Term
Cellulose
Definition
structural carbohydrate in cell walls derived from photosynthesis
Term
Chlorophyll
Definition
green pigment molecule in plants that absorbs red and blue light for photosynthesis
Term
NADP
Definition
Coenzyme, hydrogen carrier in photosynthesis
Term
Glyceraldehyde-3-phosphate (G3P)
Definition
compound in the Calvin cycle that can be converted to glucose or used to regenerate RuBP
Term
Light energy
Definition
energy used in photosynthesis
Term
Photolysis
Definition
breakdown of water molecules using energy from light
Term
Pigment
Definition
coloured substance that absorbs light for photosynthesis
Term
Reflection
Definition
light that strikes a leaf passes away from its surface back to the atmosphere
Term
Ribulose bisphosphate (RuBP)
Definition
acceptor of carbon dioxide in the Calvin cycle
Term
RuBisCo
Definition
ribulose bisphosphate carboxylase; fixes carbon dioxide in the Calvin cycle
Term
Starch
Definition
storage carbohydrate in plants
Term
Transmission
Definition
physical process of passing light energy through a surface
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