Lipid Section Flashcards by Daniel Iwamizu

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Q

Are they polymers?

A

No unlike the other three groups of biomolecules

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Q

What’s a common feature about Lipids?

A

They do not easily dissolve in water, so they are mainly hydrophobic
Nonpolar covalent bonds

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Q

What are examples of lipids?

A

Steroids (cortisol, testosterone and estrogen)
Fats (triglycerides)
Phospholipids

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Q

How are lipids used?

A

Communication (hormones)
Energy storage
Insulation (thermal or electrical)
Cellular structure

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Q

What is the difference between saturated and unsaturated fats?

A

Saturated fats - Solid don’t spoil easily
Unsaturated fats - Liquid at room temp and spoil quickly

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Q

How are phospholipids similar to triglycerides?

A

Both consist of glycerol molecule bonded to fatty acids molecules

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Q

How are phospholipids different to triglycerides?

A

Triglycerides have three fatty acids, while phospholipids have two fatty acids and a phosphate group

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