20 terms

Photosynthesis (2018) Honors

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Photosynthesis
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
Producer
An organism that can make its own food. aka autotroph
Autotroph
An organism that makes its own food. aka producer
ATP
main energy source that cells use for most of their work - for immediate use, not stable enough to be stored
ADP
a lower-energy molecule that can be converted into ATP by the addition of a phosphate group and energy
Phosphate group
the part of an ATP molecule that is removed to release energy
Chemosynthesis
process in which I chemical energy is used to produce carbohydrates
Pigments
Molecules that absorb the suns energy
Chlorophyll
the pigment in the thylakoid membranes that absorbs light energy
Chloroplast
An organelle found in plant and algae cells where photosynthesis occurs
Thylakoid
A flattened membrane sac inside the chloroplast, where light energy is initially converted to chemical energy
Granum
A stack of thylakoids in a chloroplast
Stroma
fluid portion of the chloroplast; outside of the thylakoids where the Calvin cycle occurs
Cellular respiration
Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
Consumer
An organism that obtains energy by feeding on other organisms. aka heterotroph
Heterotroph
An organism that cannot make its own food. aka consumer
Mitochondria
the organelle where cellular respiration occurs
Light dependent reactions
the first of the reactions of photosynthesis - uses energy from light to produce ATP and NADPH
Electron carrier
a general term for a compound that can accept a pair of high-energy electrons and transfer them, along with most of their energy, to another molecule
NADP+/NADPH
in photosynthesis, the major electron carrier involved in electron transport