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Energy in the Cell
photosynthesis & cellular respiration
22
Biology
10th Grade
01/08/2010

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Term
alcoholic fermentation
Definition
the breakdown of glucose without oxygen; used in making bread; products of this fermentation are alcohol and carbon dioxide
Term
lactic acid fermentation
Definition
breakdown of glucose without oxygen present; occurs in animal muscle cells; causes a sore feeling in the muscles
Term
pyruvic acid
Definition
3 carbon substance that is the end product of cellular respiration
Term
photosynthesis
Definition
Process used by autotrophs to change light energy into chemical energy
Term
cellular respiration
Definition
process where glucose is broken down to form ATP
Term
Calvin Cycle
Definition
a.k.a. dark cycle, light-independent cycle; phase of photosynthesis that occurs during night to produce glucose
Term
glycolysis
Definition
process where glucose is broken down; occurs in the cytoplasm
Term
autotroph
Definition
organisms that can capture sunlight and change the light energy into chemical energy
Term
thylackoid
Definition
structure in the chloroplast that contains chlorophyll; light energy is changed into chemical energy in this structure
Term
aerobic respiration
Definition
a.k.a. aerobic process; occurs after glycolysis if oxygen is present, in the mitochondria
Term
fermentation
Definition
occurs after glycolysis if oxygen is not present
Term
heterotroph
Definition
organisms that obtain their energy by eating other organisms; cannot make their own food from trapped sunlight
Term
chlorophyll
Definition
green pigment in plants that trap most colors of sunlight
Term
electron transport chain
Definition
A group of compounds that pass excited electrons from one to another across a membrane to create 34 ATP
Term
Kreb's cycle
Definition
a.k.a. citric acid cycle; occurs in the mitochondria; produces 2 ATP
Term
ATP
Definition
Molecule consisting of adenine, ribose, and 3 phosphate groups, responsible for storing energy; energy is stored in the bonds between phosphate groups
Term
ADP
Definition
molecule consisting of adenine, ribose, and 2 phosphate groups; result of a phosphate being broken from ATP and energy being released; can be use to make ATP by bonding with a free phosphate group
Term
light reactions
Definition
phase of photosynthesis that occurs during daylight hours; uses water to change light energy into chemical energy
Term
photolysis
Definition
the splitting of water using light energy
Term
chemosynthesis
Definition
process where energy is used to produce carbohydrates (sugars)
Term
anaerobic respiration
Definition
the breakdown of glucose without oxygen present; 2 types: alcoholic fermentation and lactic acid fermentation
Term
citric acid cycle
Definition
a.k.a. Kreb's cycle; the change of pyruvic acid into ATP and acetic acid; occurs in mitochondria
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