Biomolecules/Water Chemistry

Which of the following is an example of COHESION?

• water sticking to water

• water sticking to glass

• oil sticking to plastic

• hydrogen sticking to oxygen

Water sticks well to many materials. What term relates to this property of water?

• cohesion

• adhesion

• density

• surface tension

Tags

NGSS.HS-ESS2-5

Water is a universal solvent because it...

• It can be found anywhere
• It freezes when it gets cold
• floats when frozen
• Dissolves most substances

Tags

NGSS.HS-ESS2-5

The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form

• less polar
• more polar
• less dense
• more dense

In living organism, lipids function mainly as

• sources of stored energy and transmitters of genetic information.

• sources of stored energy and components of cellular membranes.

• transmitters of genetic information and catalysts of chemical reactions.

• all of the above

The body will break down protein for energy, however it will only do this after exhausting all of the reserves of...

• DNA and RNA

• Carbs and Lipids

• Carbon Dioxide and water

• DNA and Carbs

Tags

NGSS.HS-LS1-7

Which macromolecule stores hereditary material and produces RNA?

• Carbohydrates

• Nucleic Acid

• Lipids

• Proteins

Many aquatic birds secrete waxy organic substances that repel water. What macromolecule is this most likely to be?

• Carbohydrates

• Nucleic Acid

• Lipids

• Proteins

The monomer for this macromolecule is called amino acids.

• Carbohydrates

• Nucleic Acid

• Lipids

• Proteins

Tags

NGSS.HS-LS1-6

NGSS.HS-LS1-1

The monomer for this macromolecule is called nucleotides.

• Carbohydrates

• Nucleic Acid

• Lipids

• Proteins