7/31/26, 1:48 PM MCB 450 UIUC Exam 3 (2026) Questions & Answers | 100% Verified solutions UPDATE |2026!! STUDY GUIDE EXAM Flashcards …
MCB 450 UIUC Exam 3 (2026) Questions & Answers
| 100% Verified solutions UPDATE |2026!! STUDY
GUIDE EXAM
Add to calendar
Play your way to mastery with fun games
Match Blocks Charms NEW
Terms in this set (52)
Which of the following properties of a The energy level of the transition state is lowered
chemical reaction are altered when the
reaction is catalyzed by an enzyme?
-The energy level of the initial state
(reactants) is lowered
-The energy level of the final state
(products) is lowered
-The energy level of the transition state
is lowered
-The reaction equilibrium is altered to
favor the products
https://quizlet.com/1197337161/mcb-450-uiuc-exam-3-2026-questions-answers-100-verified-solutions-update-2026-study-guide-exam-flash-cards/?new 1/18
,7/31/26, 1:48 PM MCB 450 UIUC Exam 3 (2026) Questions & Answers | 100% Verified solutions UPDATE |2026!! STUDY GUIDE EXAM Flashcards …
Which of these statements about Km is Km is the substrate concentration that will give half-
correct? maximal reaction velocity
-Km is the substrate concentration that
will give maximal reaction velocity
-Km is the substrate concentration that
will give half-maximal reaction velocity
-Km is the same as Vmax divided by
the total enzyme concentration
-Km is the same as the 'turnover
number' enzyme
How does a ligand-gated channel When a ligand binds to an ion channel, the channel
work? changes conformation and the ion channel opens,
allowing ions to cross the membrane
Hormonal activation of a signaling cAMP dependent protein kinase A
pathway that includes heterotrimeric
GTP-binding proteins would most
likely involve the activation of which of
the following protein kinases?
-Tyrosine kinases
-Ca2+ -calmodulin dependent kinase
and protein kinase C
-AMP dependent protein kinase and
protein kinase B (Akt)
-cAMP dependent protein kinase A
https://quizlet.com/1197337161/mcb-450-uiuc-exam-3-2026-questions-answers-100-verified-solutions-update-2026-study-guide-exam-flash-cards/?new 2/18
, 7/31/26, 1:48 PM MCB 450 UIUC Exam 3 (2026) Questions & Answers | 100% Verified solutions UPDATE |2026!! STUDY GUIDE EXAM Flashcards …
In cells, NADH serves as a carrier of electrons
which of the following?
-electrons
-acetyl groups
-methyl groups
-phosphoryl groups
-hydroxyl groups
In cells, biotin serves as a carrier of carboxyl groups
which of the following?
-carboxyl groups
-phosphoryl groups
-electrons
-methyl groups
-acetyl groups
Which of the following are reasons that It has a stable ring structure and unlikely to
glucose is a common metabolic fuel glycosylate proteins
used in living organisms?
-only sugar used by the brain
-has a stable ring structure and
unlikely to glycosylate proteins
-unlikely to glycosylate proteins
-has a stable ring structure
-has a stable ring structure, it is unlikely
to glycosylate proteins, and it is the
only sugar used by the brain
https://quizlet.com/1197337161/mcb-450-uiuc-exam-3-2026-questions-answers-100-verified-solutions-update-2026-study-guide-exam-flash-cards/?new 3/18
MCB 450 UIUC Exam 3 (2026) Questions & Answers
| 100% Verified solutions UPDATE |2026!! STUDY
GUIDE EXAM
Add to calendar
Play your way to mastery with fun games
Match Blocks Charms NEW
Terms in this set (52)
Which of the following properties of a The energy level of the transition state is lowered
chemical reaction are altered when the
reaction is catalyzed by an enzyme?
-The energy level of the initial state
(reactants) is lowered
-The energy level of the final state
(products) is lowered
-The energy level of the transition state
is lowered
-The reaction equilibrium is altered to
favor the products
https://quizlet.com/1197337161/mcb-450-uiuc-exam-3-2026-questions-answers-100-verified-solutions-update-2026-study-guide-exam-flash-cards/?new 1/18
,7/31/26, 1:48 PM MCB 450 UIUC Exam 3 (2026) Questions & Answers | 100% Verified solutions UPDATE |2026!! STUDY GUIDE EXAM Flashcards …
Which of these statements about Km is Km is the substrate concentration that will give half-
correct? maximal reaction velocity
-Km is the substrate concentration that
will give maximal reaction velocity
-Km is the substrate concentration that
will give half-maximal reaction velocity
-Km is the same as Vmax divided by
the total enzyme concentration
-Km is the same as the 'turnover
number' enzyme
How does a ligand-gated channel When a ligand binds to an ion channel, the channel
work? changes conformation and the ion channel opens,
allowing ions to cross the membrane
Hormonal activation of a signaling cAMP dependent protein kinase A
pathway that includes heterotrimeric
GTP-binding proteins would most
likely involve the activation of which of
the following protein kinases?
-Tyrosine kinases
-Ca2+ -calmodulin dependent kinase
and protein kinase C
-AMP dependent protein kinase and
protein kinase B (Akt)
-cAMP dependent protein kinase A
https://quizlet.com/1197337161/mcb-450-uiuc-exam-3-2026-questions-answers-100-verified-solutions-update-2026-study-guide-exam-flash-cards/?new 2/18
, 7/31/26, 1:48 PM MCB 450 UIUC Exam 3 (2026) Questions & Answers | 100% Verified solutions UPDATE |2026!! STUDY GUIDE EXAM Flashcards …
In cells, NADH serves as a carrier of electrons
which of the following?
-electrons
-acetyl groups
-methyl groups
-phosphoryl groups
-hydroxyl groups
In cells, biotin serves as a carrier of carboxyl groups
which of the following?
-carboxyl groups
-phosphoryl groups
-electrons
-methyl groups
-acetyl groups
Which of the following are reasons that It has a stable ring structure and unlikely to
glucose is a common metabolic fuel glycosylate proteins
used in living organisms?
-only sugar used by the brain
-has a stable ring structure and
unlikely to glycosylate proteins
-unlikely to glycosylate proteins
-has a stable ring structure
-has a stable ring structure, it is unlikely
to glycosylate proteins, and it is the
only sugar used by the brain
https://quizlet.com/1197337161/mcb-450-uiuc-exam-3-2026-questions-answers-100-verified-solutions-update-2026-study-guide-exam-flash-cards/?new 3/18
