answers
Which of the following is true of energy?✔✔It can be converted from one form to
another
Over time, without any additional input of energy what happens to
molecules?✔✔They become more disordered
Which of the following is the term that describes the accumulation of electrons (e-
)?✔✔Reduction
Which of the following is a source of potential energy in a molecule of
ATP?✔✔Covalent Bonds
Which of the following will cause a release of free energy (-delta G)?✔✔Protein
digestion
Which of the following will cause an increase in total energy (+ delta
H)?✔✔Glycogen production
Which of the following will cause a decrease in entropy (- delta S)?✔✔Glycogen
production
True or False: The amount of energy available to do work is termed total energy
(H).✔✔False
What are the 3 major sources of energy that you consume in food?✔✔Proteins,
Lipids, Carbohydrates
When oxidized completely, which of the following 3 milk products will release the
greatest amount of potential energy (G)? Casein, Lactose, or Palmitic
Acid?✔✔Casein
During lipid metabolism by beta oxidation, which of the following serves as an
electron acceptor (i.e. is reduced)?✔✔NAD+
If you have a buildup of Coenzyme A (CoA) in the cytoplasm, what effect on lipid
beta oxidation would you expect?✔✔An increase in lipid beta oxidation
Which of the following happens to proteins from the food you eat?✔✔They can be
broken into component amino acids and reused to make new proteins and They can
be broken into component amino acids and metabolized to produce energy
Which of the following will inhibit protein metabolism via a negative feedback
loop?✔✔GTP and ATP
, What person would you expect to have the lowest levels of lactase in their
intestines?✔✔An adult who is lactose intolerant
If a glucose molecule enters glycolysis and finishes at pyruvate, which of the
following will also be produced?✔✔ATP
Which of the following will increase the rate of glycolysis?✔✔Increased AMP levels
Hydrolysis or breakdown of which molecule will lead to the greatest release of
potential energy (i.e. largest - Δ G)?✔✔Glucose
What change in entropy (S) occurs following glycolysis?✔✔Entropy increases
Where is the potential energy stored so far?✔✔NADH & FADH2
What is GTP used for?✔✔translation
What is produced as waste in the citric acid cycle?✔✔CO2
Where is the potential energy stored from the citric acid cycle?✔✔NADH, FADH2,
and GTP,
Where Is Citric Acid Cycle?✔✔mitochondria
What effect on the citric acid cycle do you expect a buildup of ATP to
have?✔✔Inhibit the citric acid cycle
Does the citric acid cycle require oxygen?✔✔No
NADHis.......to NAD+:✔✔Oxidized & - DG
How does the pH in the mitochondrial matrix compare to the cytoplasmic
pH?✔✔Matrix has a higher pH (more basic)
Which way does the H+ flow?✔✔into the matrix
Where do you get the oxygen you need for cellular respiration?✔✔Air you breath
Where do you expect the concentration (partial pressure) of carbon dioxide to be the
highest?✔✔Blood arriving to the lungs in the pulmonary artery
Where does the excess carbon dioxide in the pulmonary artery come
from?✔✔Byproduct of cellular respiration
What are two ways you can increase the amount of oxygen you inhale?✔✔larger
breaths and breath faster