Chapter 6.1 Flashcards
ADP (adenosine di phosphate)
A substance involved in energy metabolism formed by the breakdown of ATP (adenosine tru phosphate)
ATP synthase
An enzyme that catalyzes the synthesis of ATP from ADP and phosphate
Biochemical pathway
A series of chemical reactions in which the product of one reaction is consumed in the next reaction
Carotenoid
A light-absorbing compound that functions as an accessory pigment in photosynthesis
Chemiosmosis
A process in chloroplasts and mitochondria in which the movement of protons down their concentration gradient across a membrane is coupled to the synthesis of ATP
Chlorophyll
A class of light-absorbing pigment used in photosynthesis
Electron transport chain
Molecules in the thylakoid membrane of inner mitochondrial membrane that uses some of the energy in electrons to pump protons across the membrane
Granum
A stack of thylakoids in a chloroplast
Light reaction
The initial reactions in photosynthesis including absorption of light by photosystems 1 and 2 the passage of electrons along the electron transport chain the production of NADPH and O2 and the synthesis of ATP through chemiosmosis
NADP+
An organic molecule that accepts electrons during redox reactions
Photosynthesis
The conversion of light energy into chemical energy stored on organic compounds
Photosystem
In plants, a unit of several hundred chlorophyll molecules and carotenoid pigment molecules in the thylakoid membrane
Pigment
In plants a compound that absorbs light and impacts color
Primary electron acceptor
A molecule in the thylakoid membrane that accepts the electrons that chlorophyll A loses in the light reactions
Storma
In plants the solution that surrounds the thylakoids in chloroplast
