Proteins, Carbohydrates, Lipids

This molecule is a ____________.

• carbohydrate

• nucleic acid

• protein

• lipid

Saturated fats are __________ at room temperature.

• liquid
• gases
• plasma
• solid

Which of the following elements is NOT found in carbohydrates?

• Carbon
• Hydrogen
• Nitrogen
• Oxygen

The characteristic that all lipids have in common is ______.

• made of lots of double bonds

• acidic when mixed with water

• no high energy content

• do not dissolve in water

Unsaturated fats are __________ at room temperature.

• liquids
• solids
• toxic
• saturated

_________ is a carbohydrate polymer that humans cannot digest and that make up cell walls of plants.

• Starch
• Cellulose
• Glucose
• Lactose

Which of the following about UNSATURATED fats is true?

• They are more common in animals than in plants.
• They have double bonds in their fatty acid chains.
• They generally solidify at room temperature.
• They contain more hydrogen than saturated fats having the same number of carbon atoms.

A fatty acid chain with only C-C bonds (single bonds) is ________________ and makes the molecule a solid at room temperature, like butter or lard.

• saturated
• unsaturated

These are examples of

• carbohydrates

• lipids

• proteins

• nucleic acids

What is the storage(s) form of carbohydrate found in mammals?

• Glucose and glycogen

• Glycogen

• starch

• Fiber and glycogen