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Bio 2 (Let's go Chagnon) > Lipids > Flashcards

Flashcards in Lipids Deck (14):
1

A group of molecules that are insoluble in water.

Lipids

2

A high proportion of nonpolar C – H bonds causes the molecule to be .......

Hydrophobic

3

What are the 3 main categories of the lipids?

Neutral fats (triglycerides)
Phospholipids
Steroids

4

What composes triglycerides?

1 glycerol + 3 fatty acids

5

Long hydrocarbon chains

Fatty acids

6

Fatty acids may be.. (3)

Saturated
Unsaturated
Polyunsaturated

7

Excellent for energy storage

Triglycerides

8

Animals fats are... fats.

Saturated

9

Plants fats are... fats.

Unsaturated

10

What composes the phospholipids?

1 glycerol
2 fatty acids
phosphate group

11

Phospholipids contain _____ heads and _____ tails. They are amphipathic.

Polar heads
Nonpolar tails

12

They spontaneously form micelles or lipid bilayers due to amphipathic nature. (bases of biological membranes)

Phospholipids

13

4 fused rings

Steroids

14

Functions of steroids (2).

Chemical signalling (hormones).
Offer integrity to plasma membrane structure