Lipids - AQA A Level

Which specific lipid has the following characteristics:
1. Makes up the cell membrane
2. Has a polar, hydrophilic head
3. Has 2 non-polar, hydrophobic tails

• waxes
• phospholipids
• steroids
• triglycerides

This picture shows what type of lipid?

• unsaturated fat
• wax
• saturated fat
• steroid

A "kinky structure" due to the double bonds between carbon atoms creates a lipid known as what?

• saturated fat
• wax
• steroid
• unsaturated fat

The following are characteristics and functions of waxes EXCEPT:

• solid at room temperature
• water proof
• low melting point
• forms a protective covering to prevent water loss

Saturated fats are _____ at room temperature.

• solids
• gases
• liquids
• non of the above

What type of lipid is this?

• steroid
• cholesterol
• phospholipid
• triglyceride

In the phospholipid, the polar head is considered what type of structure?

• hydrophobic
• insoluble
• hydrophilic

Which of the following molecules is not a lipid? 

• testosterone
• triglycerides
• cellulose
• phospholipids

An example of an unsaturated fat would be ________

• butter
• bacon fat
• vegetable oil
• scrapple

Lipids are composed of which atoms?

• Hydrogen, Oxygen, Nitrogen

• Hydrogen, Oxygen, Carbon

• Oxygen, Nitrogen, Carbon

• Oxygen, Nitrogen, Hydrogen