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Bio 156 exam 1 with correct answers
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Bio 156 exam 1 with correct answers
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Bio 156 exam 1 with correct answersChloroplast of plants - Answer -photosynthesis converts energy from the sun into
glucose and oxygen
Glucose is broken down - Answer -In the mitochondria through a process called cellular
respiration, releasing energy
Glycolysis, the Kreb's cycle , and electron transfer chain - Answer -Process of cellular
respiration is comprise of 3 stages
Glycolysis - Answer -First step of cellular respiration, where one molecule of glucose is
broken into 2 molecules of pyruvic acid
Cytoplasm cells - Answer -Glycolysis occurs
Glycolysis can be found - Answer -In all living organisms
In glycolysis - Answer -Two NADH and four molecules of ATP are produced, 2
molecules of ATP are used in this process leaving a net total of 2 ATP molecules
Glycolysis reaction - Answer -Does not require oxygen, so can occur in both aerobic
and anaerobic situation
The kreb's cycle take place - Answer -Reaction in which pyruvate is broken down by
enzymes to carbon dioxide. Occurs in the mitochondria- the area outside of the cristae.
Pyruvate in kreb's cycle - Answer -Is broken down in to carbon dioxide and ATP
During the break down of electrons in the kreb's clycle - Answer -Electrons are released
and stored by forming compounds of NADH and FADH2
Produced in the kreb's cycle - Answer -6 NADH, 2 FADH, and 2 molecules of ATP
Electron transport chain takes place - Answer -Inner membrane of the mitochondria
, electron tansport chain - Answer -NADH and FADH2 donate electrons to electron
carriers imbedded in the membrane
As the electrons are passed from compound to compound down the electron transport
chain - Answer -Energy is released
In the end of an electron transport chain what's the total of molecules available - Answer
-36 molecules of ATP are available
Plants preform preform photosynthesis and animals preform respiration - Answer -It
implies that cellular respiration does not occur in plants. In fact almost all eukaryotic
cells uses cellular respiration to obtain energy
Photosynthesis and cellular respiration - Answer -provide energy for life
Breathing - Answer -Supplies oxygen to our cells and removes carbon dioxide
How is your breathing related to your cellular respiration? - Answer -In breathing, CO2
and O2 are exchanged between your lungs and the air. In cellular respiration, cells use
the O2 obtained through breathing to break down fuel, releasing CO2 as a waste
Why are sweating and other body-cooling mechanisms necessary during vigorous
exercise? - Answer -The demand for ATP is supported by increased rate of cellular
respiration but about 60 % of energy released from food produces body heated instead
of ATP
Cellular respiration - Answer -Process that releases energy by breaking down glucose
and other food molecules in the presence of oxygen
Cellular respiration banks - Answer -Energy an ATP molecules
redox reaction - Answer -the movement of electrons from one molecule to another
Oxidation - Answer -The loss of electrons from a substance involved in a redox reaction.
reduction - Answer -the addition of electrons to another substance
Dehydrogenase - Answer -An enzyme that catalyzes a chemical reaction during which
one or more hydrogen atoms are removed from a molecule.
electron transport chain - Answer -A sequence of electron carrier molecules (membrane
proteins) that shuttle electrons during the redox reactions that release energy used to
make ATP.
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