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Biology Chapter 7
Outline of lecture and chapter for chapter 7.
54
Biology
Undergraduate 2
10/11/2014

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Term
the last stage of cellular respiration, in which the most ATP is produced, is:
Definition
ETC
Term
What are some outputs of glycosis?
Definition
ATP, Pyruvate, NADPH
Term
match the typical ATP production of the different steps of cellular respiration:

Glycolysis
Citric Acid
ETC

2 ATP
34 ATP
4 ATP (2 as a net gain)
Definition
Glycolysis – 4 ATP (2 as a net gain)
Citric Acid – 2 ATP
ETC – 34 ATP
Term
the prepatory steps, the citric acid cycle, and the elctron transport chain occur inside the _____
Definition
Mitochondrion
Term
What is produced during cellular respiration?
Definition
Carbon Dioxide
Term
What are inputs of cellular respiration AND outputs of photosynthesis?
Definition
Oxygen; glucose
Term
the phase of ceullular respiration that takes place outside of the mitochondrion, does not require the presence of oxygen, and produces two ATP molecules is called _____________
Definition
Glycolysis
Term
list the steps of lactic acid fermentation in order from when glujcose enters the process:
Definition
2 ATP are invested
NADP is produced
4 ATP are produced for a net gain of 2 ATP
Pyruvate is produced
NADP gives up electrons and hydrogens to another molecule
Lactic acid is produced
Term
if 1 molecule of glucose produces 1- molecules of NADP and 2 molecules of FADH2, how much ATP is produced in the ETC?
Definition
34
Term
fermentation is used by cells when _____ is not present
Definition
Oxygen
Term
What are the reactants for cellular respiration?
Definition
Oxygen and Glucose
Term
cellular respiration is essentially the reverse of photosynthesis.
Definition
True.
Term
What carriers are produced during the citric acid cycle?
Definition
NADH and FADH2
Term
list the steps of glycosis from the point at which glucose enters until the point
Definition
2 ATP transfer phosphate groups to substrates.
G3P is produced
NADH is produced
4 ATP
Term
where, specifically, does the citric acid cycle (Krebs cycle) occur?
Definition
Matrix of the mitochondria
Term
glycolysis and the citric acid cycle each have a net ATP production of:
Definition
2
Term
the amount of oxygen needed to metabolize lactate is referred to as the oxygen ____
Definition
Deficit
Term
in the electron transport chain of cellular respiration, electrons are passed from one molecule to the next. As the lectrons move down the chain their energy levels change from a _______ energy level to a ______ energy level.
Definition
3; 2
Term
the two steps of glycolysis:
Definition
The energy-investment step and the energy-harvesting step
Term
the enzyme ATP synthase is located on the mitochondrion’s ______ _______
Definition
inner membrane
Term
What is the chemical equation for cellular respiration.
Definition
Glucose + Oxygen yields carbon dioxide and water + energy
Term
before being used for energy during cellular respiration, into what two parts are an amino acid broken?
Definition
Ammonia and hydrocarbon backbone
Term
the inputs into the citric acid cycle are ____
Definition
FAD
NAD+
ADP
C2 Acetyl group
Term
explain how the movement of electrons down the etc produces ATP?
Definition
As the electrons move down the ETC their energy causes H+ to be pumped across the inner membrane and the concentration gradient stores energy.
Term
in the electron transport chain of cellular respiration, electrons are passed from one molecule to the next. As the electrons move down the chain their energy levels change from a ____ energy level to a ____ energy level.
Definition
Higher; Lower
Term
the intermembrane space is found ___
Definition
Between the outer and inner membranes of the mitochondrion
Term
in cellular respiration, which molecule is oxidized?
Definition
Glucose
Term
fats and oils are processed before they enter cellular respiration and are broken down into ____
Definition
Glycerol and fatty acids
Term
ATP is produced as _____ ions move through ATP synthase
Definition
H+
Term
once they give up electrons, NADH and FADH2 become ___
Definition
NAD+ and FAD
Term
during the preparatory reactions, how many molecules of CO2 are produced per glucose molecule?
Definition
2
Term
what is the end product of fermentation in yeasts?
Definition
alcohol
Term
1. During cellular respiration, the breakdown of ____ releases a great deal of ____ that is then used by the cell.
Definition
Glucose; Energy
Term
2. During the four stages of cellular respiration, energy is released when the _____ of glucose are broken down and then used to make the energy molecule ____
Definition
Bonds; ATP
Term
3. Cellular respiration is a(n) ______ in which glucose is _____ to form carbon dioxide and oxygen is _____ to form water
Definition
Redox reaction; oxidized; reduced
Term
The chemical equation for cellular respiration is essentially the reverse equation of ______
Definition
Photsynthesis
Term
Cells obtain energy by ______ food molecules such as glucose.
Definition
Oxidizing
Term
Which of the following best describes the reduction of the coenzyme NAD+?
Definition
NAD+ + H -> NADPH
Term
A hydrogen atom consists of _____
Definition
1 proton and 1 electron
Term
NADH serves as an electron carrier that can donate its hydrogen to other molecules.
Definition
true
Term
In glycolysis, glucose is converted to ____
Definition
Pyruvate
Term
The NET result of a single glycolysis run is the formation of ___
Definition
2 NADH and 2 ATP
Term
Under anaerobic conditions, the end-product of glycolysis is converted to:
Definition
lactic acid
Term
The process of _____ breaks down glucose under anaerobic conditions.
Definition
Fermentation
Term
13. Bacteria uses fermentation and can produce an organic acid, like ____, or an ______ and CO2, depending on the type of bacterium.
Definition
Lactate; alcohol
Term
In athletes, _____ is reduced to lactate during fermentation, which can lead to muscle “burn.”
Definition
pyruvate
Term
Another byproduct of fermentation in some yeasts is _____, which makes bread rise.
Definition
Co2
Term
Instead of lactate, ______ _____ is a byproduct of fermentation in some yeasts and is used to make beverages such as beer and wine,
Definition
Ethyl Alcohol
Term
Before entering the citric acid cycle, pyruvate is converted to ____
Definition
Acetyl-CoA
Term
A single ‘turn’ of the citric acid cycle will yield:
Definition
1 ATP, 3 NADH, and 1 FADH2
Term
The Krebs cycle occurs in the mitochondria.
Definition
True
Term
What is the enzyme used to synthesize ATP?
Definition
ATP synthase
Term
The electrons that are transferred through the electron transport system initially belonged to _____
Definition
NADH and FADH2
Term
When oxygen accepts electrons, water is produced as a byproduct.
Definition
True.
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