MC - Biochemistry Quiz - L8-L11 | Take the Quiz

Create an illustration of a biochemistry lab scene featuring DNA strands, enzymes, and glucose molecules, with a bright and engaging color palette suitable for educational purposes.

MC - Biochemistry Quiz

Test your knowledge of biochemistry with this engaging multiple-choice quiz! Designed for students and enthusiasts alike, this quiz covers various fundamental concepts from cellular metabolism to the structure of carbohydrates.

Key Features:

Multiple choice questions to assess your understanding
Covers a range of topics including enzyme function, digestion, and energy metabolism
Ideal for students preparing for exams or anyone looking to refresh their biochemistry knowledge

10 Questions2 MinutesCreated by AnalyzingAtom347

What is the chemical difference between cellulose and chitin?

Replacement of the hydroxyl group at C3 with an acetylated amino group

Replacement of the hydroxyl group at C2 with an acetylated amino group

Replacement of the hydroxyl group at C4 with an acetylated amino group

Replacement of the hydroxyl group at C5 with an acetylated amino group

How is ATP hydrolysis used to power other cellular reactions?

It is coupled with endergonic reactions

It produces water which is used to fuel other reactions.

It adds a phosphate to ADP

It acts as an enzymatic catalyst.

Opposing degradative and biosynthetic pathways

Use the same enzymes for many steps.

Use different enzymes for steps that require large energy changes.

Are coordinately regulated at the steps that use different enzymes

Are used in both directions in most organisms

All of the above

Compared with the resting state, vigorously contracting skeletal muscle shows:

Decreased AMP/ATP ratio.

Decreased levels of fructose 2,6-bisphosphate

Increased reduction of pyruvate to lactate

Decreased NADH/NAD+ ratio

Increased oxygen availability

About digestion of starch which statement is true 1- It's begins in moth by amylase in saliva 2- Continue to the large intestine by pancreatic amylase become a mixture of a small oligosaccharides

Both are true

The first is true and the second is false

The first is false and the second is true

Both are false

When it functions as a "second messenger", cAMP

Acts outside the cell to influence cellular processes

Acts "second in importance" to AMP

Activates all cytosolic protein kinases.

Activates the cAMP-dependent protein kinase

Binds to calmodulin causing it to bind Ca2+.

Which of the following glucose transporter (GLUT) are important in insulin-dependent glucose uptake?

) GLUT1

) GLUT2

) GLUT3

) GLUT4

The Km (Michaelis constant) of an enzyme-catalyzed rection (select one or more)

Is a measure of the turnover rate of the enzyme

Is a measure of the affinity of the enzyme for its substrate

Has a higher numerical value when the enzyme has high affinity for its substrate.

Has a lower numerical value when the enzyme has high affinity for its substrate

Is the substrate concentration when the reaction rate is half of the maximum rate.

MC - Biochemistry Quiz - L8-L11

MC - Biochemistry Quiz

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