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The Lipid Bilayer Quiz

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Questions and Answers

Which part of the phospholipid is attracted to water?

Both the head and the tail
The head (correct)
The tail
Neither the head nor the tail

Which region of the phospholipid is hydrophobic?

The head
The tail (correct)
Both the head and the tail
Neither the head nor the tail

How are phospholipids arranged in the plasma membrane?

Randomly
With the hydrophilic heads facing inwards and outwards
In a linear pattern
With the hydrophobic tails facing inwards and outwards (correct)

What makes phospholipids amphipathic molecules?

Both their hydrophilic heads and hydrophobic tails (A) Signup and view all the answers

Why do phospholipids form a stable structure in water?

Because the polar heads are hydrophilic (C) Signup and view all the answers

Which type of molecule is the lipid bilayer primarily composed of?

Phospholipid molecules (A) Signup and view all the answers

What is the hydrophilic region of a phospholipid attracted to?

Water (A) Signup and view all the answers

Why are phospholipids considered amphipathic molecules?

Because they have both a hydrophilic and hydrophobic region (B) Signup and view all the answers

How are the polar heads of phospholipid molecules arranged in the plasma membrane?

They face the internal and external fluid environment of the cell (B) Signup and view all the answers

What is the orientation of the hydrophobic fatty acid tails in the lipid bilayer?

They face each other (B) Signup and view all the answers