Glycolysis is a catabolic pathway, in which glucose is broken
down to generate ATP. Would this...
Glycolysis is a catabolic pathway, in which glucose is broken
down to generate ATP. Would this pathway occur when there is high
energy charge in the cell? Why/why not?
Why does the mitochondria produce more ATP than glycolysis for
each molecule of glucose broken down?
What charges the electrons in the photosystems (the source and
the conduit that moves it into the electrons)
Carbohydrates are the main sources of fuel for the
body. They’re broken down into glucose, which
is “burned” as fuel for the body.
i. What is expected to occur when the body’s supply of glucose runs
out?
ii. Would insulin or glucagon be of any importance in this regard?
Explain your answer.
iii. As a nurse on duty, a patient is brought to the emergency ward
with symptoms of weakness,
dizziness, headache and slight disorientation. The patient has a
history...
The net gain of ATP molecules per molecule of glucose in the
reactions of glycolysis is 2. What is the net gain of ATP molecules
per monosaccharide consumed in glycolysis for the following
sugars?
Fructose:
Mannose:
Galactose:
1.) In the first step of glycolysis, the cell SPENDS an ATP and
phosphorylates glucose as soon as it enters the cell. Why does the
cell do this? Give two reasons!
2.) Speculate on why glycolysis, which is the beginning point of
many catabolic pathways does not require oxygen.
Compare the ATP yield of three glucose molecules that enter
glycolysis and are converted to pyruvate with that of three glucose
molecules that proceed through the pentose phosphate pathway such
that their carbon skeletons (as two F6P and one GAP) reenter
glycolysis and are metabolized to pyruvate. Indicate the steps
where ATP was used or produced and the overall ATP totals.
Compare the ATP yield of three glucose molecules that enter
glycolysis and are converted to pyruvate with that of three glucose
molecules that proceed through the pentose phosphate pathway such
that their carbon skeletons (as two F6P and one GAP) reenter
glycolysis and are metabolized to pyruvate. Indicate the steps
where ATP was used or produced and the overall ATP totals.
In the muscles, glycogen is broken down via the following
reaction:
(Glucose)n + Pi → Glucose-1-phosphate + (Glucose)n-1
What is the net production of ATP molecules per glucose
molecule in the muscles if glycogen is the source of the
glucose?