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Chapter 6
This is the flashcards for chapter 6
33
Biology
11th Grade
10/02/2013

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Term
ATP Synthase
Definition
An enzyme that allows protons to move through the mitochondrial membrane trigger phosphorylation of ADP to ATP
Term
Accessory Pigments
Definition
Plant pigment other than chlorophyll the extends the range of light wavelengths useful in photosynthesis
Term
Antenna Complex
Definition
An interconnected series of membrane proteins in the thylakoid membranes that harvest light energy
Term
Autotrophs
Definition
Also known as producers, organisms that produce their own nutrients
Term
Bundle-Sheath Cells
Definition
Thick-walled plant cell surrounding veins that functions in c4 photosynthesis
Term
C3 Plants
Definition
Plants that use the Calvin cycle only to fix carbon dioxide
Term
C4 photosynthesis
Definition
In plants, a biochemical pathway that prevents photorespiration
Term
CAM photosynthesis
Definition
Reactions that reduce the effect of photorespiration by storing carbon during night time for use during the day in hot, arid climates
Term
Carbon Reactions
Definition
Also known as the Calvin-Benson Cycle, the reactions of photosynthesis that convert carbon dioxide to glucose
Term
Chemiosmotic Phosphorylation
Definition
Also known as oxidative phosphorylation, the reactions that produce ATP using the energy of a proton gradient
Term
Chlorophyll A
Definition
A green pigment plants use to harness the energy in sunlight
Term
Chloroplasts
Definition
A plant cell organell housing the reactions of photosynthesis
Term
Electromagnetic Spectrum
Definition
A spectrum of naturally occuring radiation
Term
Electron Transport Chain
Definition
Membrane-bound molecular complexes that transfer energy from electrons to form gradients and energy-carrying molecules (ETC)
Term
Fluorescence
Definition
Absorbing light energy at one wavelength and emitting it at another wavelength
Term
Grana
Definition
A stack of thylakoids (singular: Granum)
Term
Heterotrophs
Definition
An organism that obtains nourishment from another organism
Term
Light Reactions
Definition
Also known as the Hills reactions, the reactions in photosynthesis that harvest light energy and store that energy in molecules of ATP or NADPH
Term
Mesophyll Cells
Definition
Thin walled plant cells that take part in C4 photosynthesis
Term
Photons
Definition
A packet of light energy
Term
Photorespiration
Definition
A process that counters photosynthesis
Term
Photosynthate
Definition
A product of photosynthesis
Term
Photosynthesis
Definition
The series of biochemical reactions that enable plant to harness sunlight energy to manufacture nutrient molecules
Term
Photosystem
Definition
A cluster of pigment molecules that enable green plants to absorb, transport, and harness solar energy
Term
Plastid
Definition
A plant organelle that encapsulates photosynthetic membranes
Term
Reaction Center
Definition
Clusters of chlorophyll and proteins that receive photo energy in photosynthesis
Term
Ribulose Bisphosphate
Definition
The 5 carbon intermediate of the carbon reactions of photosynthesis
Term
Rubisco
Definition
The enzyme that adds carbon to ribulose bisphosphate
Term
Stoma
Definition
Openings in the leaves that allow gas exchange
Term
Stroma
Definition
The nonmembranous inner region of the chloroplast
Term
Thylakoid Membranes
Definition
The membrane of the thylakoid, the location of the light reactions of photosynthesis
Term
Thylakoid Space
Definition
The inner compartment of the thylakoid
Term
Wavelength
Definition
The distance a photo moves during a complete vibration
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