44 terms

Biology: Chapter 9 Test

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Cellular Respiration
process that releases energy from food in the presence of oxygen
calorie
the amount of energy needed to raise the temperature of one gram of water by one degree Celsius
Aerobic
process that requires oxygen
Anaerobic
process that does not require oxygen
Glycolysis
first set of reactions in cellular respiration during which 1 molecule of glucose, a 6-carbon compound, is transformed into 2 molecules of pyruvic acid, a 3-carbon compound
NAD+
(nicotinamide adenine dinucleotide) electron carrier involved in glycolysis
Krebs cycle
second stage of cellular respiration in which pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions
Matrix
innermost compartment of the mitochondrion
2
How much ATP is released during GLYCOLYSIS?
2
How much ATP is released during KREBS CYCLE?
32
How much ATP is released during ETC?
Krebs Cycle and ETC
Which stage(s) are aerobic?
Glycolysis
Which stage(s) are anaerobic?
Glycolysis
starts with glucose and ends with pyruvic acid
Krebs cycle
starts with pyruvic acid and ends with carbon dioxide & HE e-
ETC
uses high-energy electrons from other cycles to convert ADP into ATP
Photosynthesis
removes carbon dioxide from the air and releases oxygen
cellular respiration
removes oxygen from the air and releases carbon dioxide
cellular respiration
used by plants, animals, fungi, protists, and most bacteria
photosynthesis
used by plants, algae, and some bacteria
FAD (FADH2)
(flavine adenine dinucleotide) similar to NAD+ and NADPH, energy carrier
ATP synthase
turns ADP into ATP by spinning
energy
Why do all organisms need food?
cytoplasm
Where glycolysis happens
matrix
where the Krebs cycle takes place
intermembrane of mitochondria
where the ETC takes place
cellular respiration
break down sugars to extract energy
photosynthesis
store E from the sun in sugars
cellular respiration equation
6 O2 + C6H12O6 --> 6 CO2 + 6 H2O + energy
photosynthesis equation
6 CO2 + 6 H2O --> 6 O2 + C6H12O6
ETC
starts with HE e- from other cycles and ends with energy and H2O
mitochondria
photosynthesis is to chloroplasts as cellular respiration is to ______________
glycolysis, Krebs cycle, ETC
order of cellular respiration
O2
what goes into Krebs cycle
HE e-
what goes into ETC
CO2 and 2 ATP
what is produced from Krebs
2 ATP
what is produced from glycolysis
glucose
what glycolysis begins with
pyruvic acids
what glycolysis ends with
carriers of HE e-
NADPH and FADH2
H2O and 32 ATP
what is produced from ETC
36
amount of ATP released in all steps of cellular respiration combined
all eukaryotic cells
Unlike photosynthesis, cellular respiration occurs in:
sugar breaking
glycolysis literally means ________________