MCQs on Plasma Membrane

MCQs on Plasma Membrane

9th Grade

10 Qs

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MCQs on Plasma Membrane

MCQs on Plasma Membrane

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9th Grade

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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The plasma membrane is primarily composed of:

Proteins and carbohydrates

Lipids and proteins

DNA and proteins

Nucleotides and carbohydrates

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The lipid bilayer of the plasma membrane is formed by:

Cholesterol molecules

Phospholipids

Glycolipids

Proteins

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which part of a phospholipid is hydrophilic?

Fatty acid tail

Glycerol backbone

Phosphate head

Entire molecule

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the role of cholesterol in the plasma membrane?

Provides energy

Increases fluidity and stability

Forms a channel for ion transport

Produces ATP

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The plasma membrane is selectively permeable, meaning it:

Allows all substances to pass through

Blocks all substances from passing through

Regulates the movement of substances into and out of the cell

Is impermeable to water

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The primary function of membrane proteins is to:

Store genetic material

Transport molecules and act as receptors

Produce energy

Break down waste

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is a function of glycoproteins in the plasma membrane?

Structural support

Cell recognition and signaling

Transport of ions

Lipid synthesis

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