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Unformatted text preview: Polysaccharides- Polymers of glucose (only glucose molecules stuck together). Energy storage in starch (only in plants) Glycogen- polymer of glucose in animals Plants use cellulose in their cell walls, it is a polymer of glucose Chitin- molecule of glucose, also used as the exoskeleton cell walls Cellulose is strong structurally, cross linked chains of glucose, using alpha bonds Lipids do not form polymers but can still be very large Lipids are hydrophobic, because they are almost all hydrocarbons 3 types, fats (oils), phospholipids, steroids Lipids can act as hormones that are used as signals to carry information They can also store lots of energy, and be used as insulation, and cushion. Phospholipids? Make up cell walls in most cells...
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- Spring '11