Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
INSTANT PDF DOWNLOAD – CHEM 210 Biochemistry Module 8 Exam & Study Guide for Portage Learning (Geneva College) 2026/2027. Exam-focused compilation with module-aligned review content, high-yield biochemistry concepts, and clearly organized study material to strengthen understanding and boost exam performance. CHEM 210 Module 8 Exam, CHEM 210 Biochemistry, CHEM 210 Portage Learning, CHEM 210 Geneva College, CHEM 210 Module 8 PDF, CHEM 210 study guide, CHEM 210 practice test, CHEM 210 test bank, CHEM 210 exam questions, CHEM 210 answers 2026, Portage CHEM 210 exam, Geneva CHEM 210 Biochemistry, Biochemistry Module 8 test, CHEM 210 online exam, CHEM 210 exam prep notes, CHEM 210 module 8 review
Typology: Exams
1 / 25
This page cannot be seen from the preview
Don't miss anything!
3 / 3 pts
3 / 3 pts
3 / 3 pts
3 / 3 pts
3 / 3 pts
3 / 3 pts
True or False: The majority of reactions of the urea cycle occur in the cytosol.
TRUE
True or False: NADH yields 1.5 ATP molecules after donating electrons and hydrogenatoms to the electron transfer chain (ETC).
FALSE
True or False: GTP is invested in the urea cycle.
FALSE
True or False: There are six complexes associated with the ETC.
FALSE
True or False: In the production of ATP via ATP synthase, the H+ ions move from the mitochondrial matrix to the intermembrane space.
FALSE
The urea cycle involves reactions (only those in the cyclic portion of the process).
Chem 210 - Module 8 exam
Question 10
3 / 3 pts
E. Both B and C
B. HIGH DENSITY OF NITROGEN ATOMS
is both a component of the urea cycle and the citric acid cycle.
Malate
Acetyl-CoA
Citrate
Fumarate
None of the above
FUMARATE
Deamination of an amino acid results in a carbon skeleton and in the production of .
3 / 3 pts
3 / 3 pts
The following chemical species is.
Ammonium Fumarate Arginine Argininosuccinate Urea
UREA
FADH 2 donates electrons and H+ to complex.
3 / 3 pts
3 / 3 pts
Inner membrane Outer membrane Both B and C
MATRIX
At which complex does the following reaction take place?
O 2 + 4e- + 4H+
→
Complex I Complex II Complex III Complex IV Both A and B
COMPLEX IV
During the electron transport chain, protons are pumped from in the mitochondria.
From the intermembrane space to the cytosol From the intermembrane space to the matrix From the matrix to the intermembrane space From outside of the cell to the cytosol From outside of the cell to the matrix
3 / 3 pts
3 / 3 pts
3 / 3 pts
FROM THE MATRIX TO THE INTERMEMBRANE SPACE
Energy released is utilized for the synthesis of ATP.
As protons flow through ATP synthase and back into the mitochondrial matrixIn the digestion of proteins In the degradation of carbohydratesIn the formation of ATP None of the above
AS PROTONS FLOW THROUGH ATP SYNTHASE AND BACK INTO THE MITOCHONDRIALMATRIX
The H+ ions flow through what part of the ATP synthase?
D. Stator
E. Both A and C
An individual with the MERRF disease, tend to have symptoms of.
4 / 5 pts
Which of the following is not a part of ATP synthase?
E. Both A and
(Fill in the blanks) Use the word bank to fill in the following blanks. In the word bank, each word or words is separated by semicolons. Words can be used more than once,and not all words will be used.
Word bank: ADP and Pi; ATP; GTP; oxidative; reductive; citric acid cycle; electrontransport chain; three; eight; ten
The (A) produces NADH and FADH 2 which can then be used to produce (B).
Oxidative phosphorylation is the synthesis of (C) from (D) , using energy generated by the oxidative reactions during the (E).
3 / 3 pts
7 / 10 pts
10 / 10 pts
A) citric acid cycle
B) ATP
C) ATP
D) ADP and Pi
E) electron transport chain
According to the chemiosmotic theory, how is the ETC connected to ATP production?Explain in at
least four complete sentences.
The chemical reactions of the ETC provide energy to pump H+ ions from the mitochondrial matrix into the intermembrane space. The reactions also provide electrons and H+ to convert oxygen into water. The net resultis that the H+ gradients permit a flow H+ to rotation ATP synthase, producing ATP.
nt is formed more clearly (be specific that the ETC transport creates a gradient).
Consider the importance of the mitochondria in energy production.
A. What structural features of mitochondria support ATP formation?
And
https://www.coursehero.com/file/246860207/Module-8docx/
Module 8:
8.1: -protein catabolism also leads to acetyl-CoA which also enters the CAC -first broken into their constituent amino acids to form acetyl-CoA -nitrogen metabolism is conserved process where the nitrogen is split apart from the carbon structure -to process nitrogen, cells use the urea cycle to excrete the element, preventing its toxic build up -energy production is not direct, result of electron flowing through the ETC consuming O2 and producing H2O which permits ATP formation -energy flow of macromolecules -carbon skeleton -common pathway -efficient processing & regulation -molecules involved in energy production -NADH -FADH -ATP -protein catabolism -carbon skeleton yields energy -nitrogen processing -urea cycle disorders -citrullineamia -arininosuccinic aciduria -arginaemia -carbon skeleton: carbon portion of amino acids (structural framework) -deamination: degradation of amino acids; removal of the amine functional group, resulting in ammonium -urea cycle: four-step cyclic process that converts NH4+ to urea which is excreted from the body -after NH4+ is removed, it is acted upon in the mitochondria by an enzyme, carbamoyl phosphate synthetase 1, that synthesizes carbamoyl phosphate -AMP will be regenerated into ATP by other cellular processes -urea has high water solubility due to its hydrogen bonding and high density of nitrogen atoms
This study source was downloaded by 100000902171055 from CourseHero.com on 01-23-2026 16:40:11 GMT -06:
https://www.coursehero.com/file/246860207/Module-8docx/
This study source was downloaded by 100000902171055 from CourseHero.com on 01-23-2026 16:40:11 GMT -06:
Define nitrogen metabolism
conserved process whereby the nitrogen is split apart from the carbon structure
Why do cells use the urea cycle?
To process and excrete nitrogen, preventing its toxic build up
Define chemiosmotic theory
the theory that most of the ATP synthesised during respiration is during oxidative
phosphorylation
Define carbon skeleton
Carbon portion of amino acids, structural framework
What do the carbon, hydrogen and oxygen atoms yield?
Acetyl-CoA
How are other atoms, nitrogen and sulfur, handled? In
catabolic process by specific processes and enzymes What
is NH 4 + produced by?
Oxidative deamination
Define deamination and what it results in
Removal of amine functional group in the degradation of amino acids, results
in ammonium NH4+, then the NH4+ and carbon atoms undergoing different
catabolic pathways
What happens to the carbon skeleton of amino acid after is it separated from
NH4+?
Carbon skeleton becomes Acetyl-CoA then ATP
What happens to the arginine in step 4?
The arginine, with two nitrogen atoms on its side chain and one on its backbone
structure, is then cleaved to form urea and ornithine
What makes Urea an excellent molecule to export nitrogen from the cell?
Urea has high water solubility due to its hydrogen bonding ability, and it has a
high density of nitrogen atoms in a small molecule
What happens after step 4 of the urea cycle?
ornithine produced in the cytosol re-enters the mitochondrion to begin the cycle
again
In overall processing of NH4+ in urea cycle, how many molecules of ATP are
invested?
3 (2 from reaction A and 1 from reaction 2)
What molecule from urea cycle can enter CAC?
Fumarate
Which two amino acids from urea cycle were studied in module 3?
Aspartate and arginine
Name the 3 disorders of urea cycle Citrullineamia,
Argininosuccinic aciduria, arginaeuria Describe
Citrullineamia
Disorder that occurs at step 2 of urea cycle, mutation in enzyme, citrulline can't
form argininosuccinate
Describe argininosuccinic aciduria
Disorder from mutation in enzyme, causes buildup of ammonia, not efficiently
excreted
Describe arginaeuria
Disorder from mutation at step 4 in enzyme
Name the 5 mitochondrial locations we learned and their locations
Christae, outer membrane, inter membrane space, inner membrane,
mitochondrial matrix
Function of oxidative phosphorylation
make ATP
Summarize the 3 phases of oxidative phosphorylation
First, the energy production starts with the flow of electrons and protons from
NADH and FADH2 through the electron transfer chain (ETC).
Next, this electron flow powers the flow of hydrogen ions (H+) from the
mitochondrial matrix to the intermembrane space.
Lastly, the flow of hydrogen ions (H+) back into the matrix through a membrane
protein for ATP synthase.
Define the outer membrane of the mitochondria
bilayer that has porin proteins that permit ions and molecules to cross into the
intermembrane space
Define Inter-membrane Space of Mitochondria
solution between the outer and inner membranes
Define the inner membrane of the mitochondria
highly selective bilayer permitting only select ions and molecules to cross
Why is the selectivity of inner membrane important?
