Oh...you know what to do
Select your name from the list.
Which of the following is the most reasonable description of what happens in cellular respiration in mitochondria?
Using energy released by breaking high-energy covalent bonds to make ATP
Taking electrons from food molecules and giving them to phosphate to make ATP
Taking electrons from food molecules, transfering them to oxygen and passing them eventually to oxygen to make water, using the energy released to make ATP
Forming ATP from the atoms released when breaking down glucose and other food molecules
During glycolysis, for each mole of glucose converted to pyruvate
6 mol of ATP are produced
4 mol of ATP are used and 2 mol of ATP are produced
4 net mol of ATP are produced
2 mol of ATP are used and 4 mol ATP are produced
To sustain high rates of glycolysis under ANAEROBIC (no oxygen) conditions, cells need to regenerate
All of these
Reduced electron carriers such as NADH are produced in what pathways or steps.
all of these (either above or below)
The citric acid cycle
The purpose of fermentation is
To make organic molecules cells can store until oxygen becomes available
to make additional ATP
To regenerate NAD+ needed for glycolysis
To make alcohol or lactic acid that cells can metabolize for energy
"Petite" mutations in yeast have defective mitochondria and are incapable of oxidative phosphorylation. Which carbon source (food source) could these yeast still use for ATP production?
all of these
The scheme shows
all of these
that glycolysis will be inhibited when oxidative phosphorylation decreases
that Coenzyme A is needed for glycolysis to function
That phosphofructokinase function is reduced when ATP is plentiful
Select all that are true for glycolysis
occurs in cytosol
is inhibited by glucose
requires some input ATP during the investment phase
occurs in mitochondria, because all energy production is in mitochondria
includes electron transport and chemiosmosis
refers primarily to the Citric Acid Cycle
takes place in the mitochondria
occurs both in cytosol and in mitochondria
We breathe out CO2. This is produced PRIMARILY during
the citric acid cycle
Cancer cells often grow anaerobically, even when oxigen is present. Knowing this, which might be a reasonable drug to treat cancer? A drug that:
binds to cytochrome C in the electron transport chain (system) and prevents its function
blocks the function of the ATP synthase.
binds to the allosteric site in Phosphofructokinase
blocks the transport of pyruvate to the mitochondria
We produce water during metabolism. This is produced mainly in
the citric acid cycle
Suppose you supplied a population of human cells with sugar in which the carbon and the oxygen are isotopically labeled (carbon-14 and O-17). Which of the following best describes where the heavy isotopes of these elements would be found following cellular respiration? (note, they could eventually end up almost anywhere. I'm just talking about following typical respiration).
the carbon would be part of newly-made proteins in the ER and the oxygen would be released
the carbon would be found in newly synthesized fat and the oxygen would be found in water
both the carbon and oxygen would be found primarily in CO2
The carbon would be found in CO2 and the oxygen would be found in water
Suppose you provided mice with air contaning O-17 (the heavy isotope of oxygen). Where would the heavy isotope be detected following normal respiration?
In water, primarily breathed out
in the CO2 breathed out
In the phosphates of ATP produced in the mitochondria
in glucose molecules made in the liver