Lipids

Which of these is a lipid?

• triglycerides
• steroids
• fatty acids
• all of the above

Lipids are found in every cell on Earth. Which part of the cell do lipids make up?

• cell nucleus
• cell vacuole
• cell membrane
• cell golgi body

What creates a steroid?

• 4-fused carbon rings
• 3-fused hydrogen chains
• 2-fused oxygen molecules
• 1 carboxyl group

Which of the following is a characteristic of lipids?

• They are polar molecules.
• They are nonpolar molecules.
• They dissolve in water.
• They are hydrophilic.

These are the monomers (building blocks) of lipids?

• nucleotides
• amino acids
• disaccharides
• fatty acids

Which of the following is NOT a function of lipids?

• long term energy
• provides flavor in food
• used to make hormones
• building of muscles

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

What does hydrophobic mean?

• the fear of water
• the fear of hydrogen
• the love of water
• the love of hydrogen

Tags

NGSS.HS-PS1-2

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