MC - Biochemistry Quiz - L8-L11
Biochemistry Mastery Quiz
Test your knowledge with our engaging Biochemistry Quiz! Covering key concepts from aldotrioses to enzyme kinetics, this quiz is designed for students and enthusiasts alike.
Challenge yourself with questions such as:
- What defines an aldotriose?
- Which pathways rely on ATP and NADPH?
- How does cell communication occur directly?
Which of the following is an aldotriose?
Dihydroxyacetone
Glyceraldehyde
Ribulose
Erythrose
The major free energy sources for anabolic pathways are
ATP and NADPH
ADP and NADPH.
ATP and NADP+.
ADP and NADP+
AMP or NADPH.
An example of DIRECT cell communication is:
Neurons communicating across a synapse
Hormones traveling through the blood stream to target tissues
White blood cells bumping into each other sharing antigen info
Whenever the cell’s ATP supply is depleted, which of the following enzyme’s activity is increased?
Hexokinase
Phosphofructokinase-1
Glucokinase
Pyruvate kinase
Which of the following is a sugar alcohol?
Arabitol
Manitol
Sorbitol
All of these
The __________ law of thermodynamics states that entropy is always increasing
First
Third
Second
Zeroth
An allosteric inhibitor of an enzyme usually
Binds to the active site.
Participates in feedback regulation.
Denatures the enzyme.
Causes the enzyme to work faster.
Which enzyme are used in liver function test (LFT)
AST
GGT
ALT
Assume that the reaction catalyzed by an enzyme follows Michaelis-Menten kinetics. The substrate concentration (Km, Michaelis constant) needed to reach 50% of the maximum reaction velocity (Vmax) is 25 μM. What substrate concentration is required to obtain at least 95% of the maximum reaction velocity?
25 μM
50 μM
475 μM
250 μM
Which of the following is an epimeric pair?
D-glucose and D-mannose
D-glucose and D-galactose
D-glucose and L-glucose
Both A and B
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