Cellular Respiration Videos TV OntarioName_________________________

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Cellular Respiration Videos TV
Ontario Name_________________________ Period
_________Date __________ Program 1 Cellular
Respiration (an overview) 1) What is the name of
the process in which chemical bonds of glucose
are broken and energy is released? 2) What are
cristae? 3) Why are cristae so numerous? 4)
What are the reactants of cellular
respiration? 5) What are the products of
cellular respiration? 6) What are the three
parts of an ATP molecule? 7) What is the energy
content of ATP relative to that of glucose? 8)
What produces the high energy nature of
ATP? 9) What happens when a molecule becomes
phosphorylated? 10) What are the three stages of
cellular respiration? Program 2 Glycolysis
1 1) How many ATP molecules are produced in
glycolysis? 2) Where and in what form is
glucose stored in the body? 3) Where in a cell
does glycolysis take place? 4) Reaction 1
One molecule of glucose is phosphorylated,
producing . 5) Reaction 2 Glucose
phosphate is converted into . 6) Reaction 3
Fructose phosphate and 1 ATP produce . 7)
Reaction 4 Fructose diphosphate is cleaved
(broken) into . 8) Reaction 5 DHAP is
converted into . So far 2 ATP have been
invested in the conversion of 1 glucose into 2
PGAL molecules.
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Program 3 Glycolysis 2 1) What is the purpose
of NAD? 2) The energized form of NAD is 3)
Reaction 6 Each PGAL reacts with a molecule of
NAD, forming . 4) When PGAL loses
electrons, we say that it is . When NAD
gains electrons, we say that it is . 5)
Reaction 7 Each molecule of DPGA gives up
phosphate to ADP, forming Check NOW, the
investment of 2 ATP from part 1 is paid
back. 6) Reaction 8 PGA is rearranged. 7)
Reaction 9 A molecule of water is lost from
each rearranged PGA, producing . 8) Reaction
10 ADP takes on a phosphate group from each
PEP, forming This produces a NET of 2 ATP
for GLYCOLYSIS! 9) The 2 ATP produced in
glycolysis account for only 2.2 of the energy in
1 glucose. Where is the rest of the
energy? Program 4 The Krebs Cycle 1)
Lets review In glycolysis, 1 glucose reacts to
produce pyruvates. 2) In oxidative
decarboxylation (a precursor step to the Krebs
cycle), pyruvate and coenzyme A react, producing
3) Reaction 1 Acetyl CoA reacts with
oxaloacetate, producing . 4) Reaction 2
Citric acid loses water to form aconitate. 5)
Reaction 3 Aconitate picks up water and is
twisted to form isocitrate. 6) Reaction 4
Isocitrate and NAD react to form the energy
carrier and oxalosuccinate. 7) Reaction 5
Oxalosuccinate loses a molecule of CO2, forming
ketoglutarate. 8) Reaction 6 Ketoglutarate
hooks up with Coenzyme A to form succinyl CoA.
This process releases 2 electrons and H to form
NADH. 9) In Reaction 7, succinyl CoA reacts with
ADP and Pi to form ATP and succinate. 10) In
Reaction 8, succinate encounters FAD and these
react to form another energy carrier, , and
fumarate. 11) Reaction 9 Fumarate encounters
water, forming malate. 12) Reaction 10 Malate
encounters NAD and forms another NADH. This
process also reforms oxaloacetate. 13) Summary
One turn of the Krebs cycle produces ___ of
NADH ___ of FADH2 ___ of ATP ___ of CO2
(waste product) 14) Summary GLYCOLYSIS Krebs
Cycle produces ___ of NADH ___ of FADH2 ___
of ATP ___ of CO2 (waste product)
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Program 5 Oxidative Phosphorylation 1) Where
does oxidative phosphorylation take place? 2) An
electron transport chain consists of
adjacent complexes embedded closely together in
the inner membrane. 3) Each NADH from the Krebs
cycle releases electrons to the electron
transport chain and pumps H from the matrix into
the intermembrane space. 4) What happens to O at
the end of the e.t.c.? 5) Electrons from FADH2
enter the e.t.c. later in the chain (at coenzyme
Q), resulting in the pumping of H from
the matrix into the intermembrane space. 6) The
pumping of H produces what 2 gradients?
7) As the H ions diffuse back across the
membrane through special protein channels,
is produced! 8) Additionally, NADH from
glycolysis is used to produce ATP molecules in
the e.t.c. 9) SUMMARY GLYCOLYSIS
ATP NADH (which produce ATP) Krebs
cycle ATP Oxid. phos. ATP TOTAL ATP P
rogram 6 Metabolism and Nutrition 1) Review
What is the role of oxygen in the e.t.c.? 2) In
the absence of oxygen, what happens to the
e.t.c.? 3) In the absence of oxygen, what is
produced in glycolysis? 4) The build up of
lactic acid produces what sensation in the muscle
cells? 5) What is the result of too much glucose
in our liver? 6) In extreme cases, in the
absence of carbohydrates and fats, what will the
body do?