QUIZ 3.1 Structure of Plasma Membrane

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Membrane structure & function quiz

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ROZALINDA ROLAND .

Malaysia

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QUIZ 3.1 Structure of Plasma Membrane


QUIZ 3.1 Structure of Plasma MembraneVersion en ligne Membrane structure & function quiz par ROZALINDA ROLAND . 1 What is the main function of the plasma membrane? a To store genetic material b To make proteins c To produce energy d To control movement of substances in and out of the cell 2 Which model describes the structure of the plasma membrane? a Lock and key model b Fluid mosaic model c Double helix model d Active transport model 3 The plasma membrane is mainly made up of __. a Carbohydrates b Proteins only c Cellulose d Phospholipid bilayer 4 Which part of a phospholipid is hydrophilic? a Protein b Cholesterol c Phosphate head d Fatty acid tail 5 Why do phospholipid tails face inward in the plasma membrane? a They like water b They attract ions c They repel water d They bind to proteins 6 Which protein forms a tunnel to allow substances to pass through the membrane? a Glycoprotein b Enzyme c Channel protein d Carrier protein 7 Which membrane component helps in cell recognition? a Phospholipid b Cholesterol c Fatty acid d Glycoprotein 8 What is the function of cholesterol in the plasma membrane? a Transports glucose b Maintains membrane stability and flexibility c Helps in protein synthesis d Makes the membrane rigid and hard 9 What does “selectively permeable” mean? a Allows all substances to pass b Allows only water to pass c Allows only certain substances to pass d Allows no substances to pass 10 Which substance can pass easily through the phospholipid bilayer? a Protein b Glucose c Sodium ion d Oxygen Feedback 1 The membrane regulates what enters and leaves the cell, essential for homeostasis. 2 The fluid mosaic model portrays a dynamic, mosaic arrangement of lipids and proteins. 3 The phospholipid bilayer forms the basic structure of the membrane. 4 The phosphate head is polar and water-loving, facing the watery environments. 5 Tails are hydrophobic, so they stay inside away from water. 6 Channel proteins create pores for facilitated diffusion or passive transport. 7 Glycoproteins act as ID markers in cell recognition processes. 8 Cholesterol modulates fluidity and stability of the bilayer. 9 The membrane favors some molecules over others based on size and polarity. 10 Small nonpolar molecules like O2 diffuse readily through the bilayer.

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QUIZ 3.1 Structure of Plasma Membrane

Test

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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QUIZ 3.1 Structure of Plasma MembraneVersion en ligne

par ROZALINDA ROLAND .

What is the main function of the plasma membrane?

Which model describes the structure of the plasma membrane?

The plasma membrane is mainly made up of __.

Which part of a phospholipid is hydrophilic?

Why do phospholipid tails face inward in the plasma membrane?

Which protein forms a tunnel to allow substances to pass through the membrane?

Which membrane component helps in cell recognition?

What is the function of cholesterol in the plasma membrane?

What does “selectively permeable” mean?

Which substance can pass easily through the phospholipid bilayer?

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