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Biology Ch. 8 Photosynthesis
Photosynthesis vocab.
22
Biology
Not Applicable
10/14/2007

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Term
Heterotroph
Definition
Organism that obtains energy from the food it consumes, also called a consumer
Term
Autotroph
Definition
Organism that can capture energy from sunlight or chemicals and use it to produce it's own food from inorganic compunds, also called a producer
Term
Adenosine Triphosphate (ATP)
Definition
One of the principal chemical compound that living things use to store and release energy
Term
Photosynthesis
Definition
Process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high energy carbohydrates such as sugars and starches
Term
Pigment
Definition
light absorbing molecule
Term
Chlorophyll
Definition
principal pigment of plants and other photosynthetic organisms, captures light energy
Term
thylakoid
Definition
sac-like phjotosynthetic membrane found in chloroplasts
Term
Photosystem
Definition
light collecting units of chloroplast
Term
Stroma
Definition
region outside of the tylakoid membranes in chloroplast
Term
NADP+ (Nirotinamide adenine dinucleotide phosphate)
Definition
one of the carrier molecules that transfers high energy electrons from chlorophyll to other molecules
Term

Light dependant reactions

Definition
Reactions of photosynthesi that use energy from light to produce ATP and NADPH
Term
ATP Synthase
Definition
large protein that uses energy from H+ ions to bind ADP and a phosphate group together to produce ATP
Term
Calvin Cycle
Definition
Reactions in photosynthesis in which energy from ATP and NADPH is used to build high energy compunds such as sugars
Term
Jan Van Helmont
Definition
A physician who concluded that the gain in the mass in a plant was mostly from water
Term
Joseph Priestly
Definition
A minister who concluded that plants give off oxygen
Term
Jan Ingenhousz
Definition

A scientist who concluded that light is necessary for plants to produce oxygen

Term
Melvin Calvin
Definition
Scientist who worked out the details of the Calvin Cycle
Term
Julius Robert Mayer
Definition
Proposed that plants convert light energy into chemical energy
Term
Samuel Ruben
Definition

Pictured that oxygen liberated in photosynthesis comes from water

Term
Martin Kamen
Definition
used isotopes to determine that the oxygen liberated in photosynthesis comes from water
Term
Rudolph Marcus
Definition
described the process by which electrons are transferred from one molecule to another in the electron transform chain
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