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40 terms

Cellular Respiration

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glycolysis ->Krebs cycle -> electron transport
What is the correct sequence of events in cellular respiration?
energy
what is released during cellular respiration?
6O2 + C6H12O6 --> 6CO2 + 6H2O + 36 ATP
what is the correct equation for cellular respiration?
water
which of these is a product of cellular respiration: oxygen, water, glucose, or all of the above?
glycolysis
what process takes place in the cytoplasm of a cell?
2
glycolysis provides a cell with a net gain of how many ATP molecules?
glucose
the starting molecule for glycolysis is..
glucose
which of the following is NOT a product of glycolysis: NADH, pyruvic acid, ATP, glucose
NAD+
what acts as an electron carrier in cellular respiration?
muscle cells
lactic acid fermentation occurs in .....
alcoholic and lactic acid
the two main types of fermentation are called...
lactic acid fermentation
milk is converted to yogurt under certain conditions when the microorganisms in the milk produce acid. What process would you expect to be key in the production of yogurt?
the Krebs cycle
in the presence of oxygen, glycolysis is followed by...
anaerobic bacterium
which organism is NOT likely to carry out cellular respiration: tree, mushroom, anaerobic bacterium, or tiger?
pyruvic acid
the starting molecule for the intermediate stage in the Krebs cycle is...
glycolysis
the Krebs cycle does not occur if what doesn't occur?
electron carriers
the Krebs cycle produces...
pyruvic acid and yields carbon dioxide
the Krebs cycle starts with...
cell membrane
in eukaryotes, electron transport occurs in the...
NADH and FADH2
what passes high-energy electrons into the ETC?
ATP
the energy of the electrons passing along the ETC is used to make what?
photosynthesis
which process does NOT release energy from glucose: glycolysis, photosynthesis, fermentation, or cellular respiration?
photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back
how are cellular respiration and photosynthesis almost opposite processes?
mitochondria
photosynthesis is to chloroplast as aerobic cellular respiration is to: chloroplast, cytoplasm, mitochondria, or nuclei
reactants of cellular respiration
the products of photosynthesis are the....
oxygen
cellular respiration releases energy breaking down glucose in the presence of.....
glycolysis
the products of ......... are 2 ATP, 2 NADH, 2 water molecules and 2 pyruvic acid molecules
carbohydrates or glucose
either cellular respiration or fermentation can be used to release energy, depending on the presence of ........
ETC
without the Krebs cycle, the ....... would produce very few ATPs
NADH and FADH2
..... and ...... carry electrons from the Krebs cycle to the ETC
carbs
during photosynthesis, energy is stored in the form of....
glycolysis, Krebs cycle, ETC
the three main stages of cellular respiration are ........, the ........, and ..........
2
without oxygen, a cell can extract a net gain of only .... molecules of ATP from each glucose molecule
pyruvic acid
gycolysis converts glucose into two molecules of ....
2
two turns of the Krebs cycle will result in .... ATP molecules
fermentation
a high level of lactic acid fermentation in the blood is a sign that ........ has occurred
eukaryotic cells
cellular respiration only occurs in....
citric acid, a six carbon chain, is made during the Krebs cycle
why is the Krebs cycle also known as the citric acid cycle?
to produce 32 ATPs
what is the main function of the ETC?
it takes away four electrons and 4 hydrogens creating 2 water molecules
What role does oxygen play in the ETC?