Lipids and Fatty Acids

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What is the key characteristic of amphipathic molecules?

They are involved in glycosidic bonds

They are always saturated

They are always found in lipids

They have both hydrophobic and hydrophilic regions (correct)

Why are lipids not considered true polymers?

They are always saturated

They do not have a repeating monomer unit (correct)

They do not have a hydrophobic tail

They are always found in membranes

What is the difference between omega-3 and omega-6 fatty acids?

Their function in the body

Their degree of unsaturation

Their chain length

The location of their first double bond (correct)

How does the degree of unsaturation of a fatty acid affect its melting point?

It decreases the melting point Signup and view all the answers

What is the main difference between integral and peripheral membrane proteins?

Their location in the membrane Signup and view all the answers

Why is cholesterol important for membrane fluidity?

It modulates the fluidity of the membrane Signup and view all the answers

What is the significance of the hydrophobic effect in the context of membranes?

It facilitates the asymmetric assembly of membrane lipids. Signup and view all the answers

What is the primary difference between saturated and unsaturated fatty acids?

Presence of double bonds Signup and view all the answers

How do the four classes of lipids differ in terms of their structure?

By the number of fatty acid chains Signup and view all the answers

What is the significance of the number designation (X:X) in fatty acids?

It indicates the number of double bonds in the fatty acid chain Signup and view all the answers

How does fat storage compare to glycogen storage in humans?

Fat storage is more energy-efficient than glycogen storage Signup and view all the answers

What is the characteristic of membranes that allows them to be asymmetric?

They are non-covalent assemblies Signup and view all the answers

Lipids and Fatty Acids

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Questions and Answers

What is the key characteristic of amphipathic molecules?

Why are lipids not considered true polymers?

What is the difference between omega-3 and omega-6 fatty acids?

How does the degree of unsaturation of a fatty acid affect its melting point?

What is the main difference between integral and peripheral membrane proteins?

Why is cholesterol important for membrane fluidity?

What is the significance of the hydrophobic effect in the context of membranes?

What is the primary difference between saturated and unsaturated fatty acids?

How do the four classes of lipids differ in terms of their structure?

What is the significance of the number designation (X:X) in fatty acids?

How does fat storage compare to glycogen storage in humans?

What is the characteristic of membranes that allows them to be asymmetric?

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