MC - Biochemistry Quiz - L8-L11
MC - Biochemistry Quiz
Test your knowledge in biochemistry with this engaging multiple-choice quiz that covers key concepts from Michaelis-Menten kinetics to glycolysis. Designed for students and enthusiasts alike, this quiz aims to deepen your understanding of enzyme behavior, metabolic pathways, and cellular signaling.
Take on various topics including:
- Enzyme kinetics
- Carbohydrate metabolism
- Cell signaling
A higher numerical value of the Michaelis constant (Km) indicates a higher enzyme/transporter affinity for its substrate
True
False
A competitive inhibitor has the following effect on a Limeweaver-Burke (double reciprocal) Plot.
It moves the entire curve to the right
It moves the entire curve to the left
It changes the y-intercept.
It changes the x-intercept
It has no effect on the slope
Which of the following is a keto tetrose?
Erythrulose
Xylulose
Sorbose
Psicose
What do second messengers do?
Transport a signal through the lipid bilayer
Relay a signal from the outside to the inside of the cell
Relay message from the inside of the mebrane throughout the cytoplasm
Dampen the message
Dihydroxyacetone phosphate is rapidly and reversibly converted to
Glyceraldehyde 3-phosphate
1, 3-bis-phosphoglycerate
Fructose 1, 6-bisphosphate
Fructose 6-phosphate
What are the effects of increased concentration of citrate?
Decreases the inhibitory effect of ATP
Increases the inhibitory effect of ATP
Increases the activity of ATP
Increases the activity of AMP
The enzymes of glycolysis in a eukaryotic cell are located in the
Intermembrane space
Plasma membrane
Cytosol
Mitochondrial matrix
The substrate used in the last step of glycolysis is
Glyceraldehyde 3-phosphate
Pyruvate
1, 3-bisphosphoglycerate
Phosphoenolpyruvate
The product formed in the first substrate level phosphorylation in glycolysis is
Pyruvate
3-phosphoglycerate
1, 3-bisphosphoglycerate
2-phosphoglycerate
Protein kinase A is
Allosterically activated by cyclic AMP
Completely inhibited by cyclic AMP
Affected by cyclic AMP only under unusual circumstances
Activated by covalent binding of cyclic AMP
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