Unit 3 Biology Review

Which biological molecule has no true monomers, and is not large enough to be a macromolecule?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

Why is water considered polar?

• Nonpolar covalent bonds in structure

• Ionic bonds in structure

• Polar covalent bonds in structure

• Hydrophobic interaction in structure

Tags

NGSS.HS-PS1-2

Which of the following is LEAST likely to dissolve in water?

• nonpolar fats and oils

• polar sugar molecules

• salt made of a positive sodium ion and a negative chloride ion

• all of the substances will dissolve easily in water

Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?

• Water is an acid.

• Water is a versatile solvent.

• Water has a high heat capacity.

•  Water acts as a buffer.

Tags

NGSS.HS-ESS2-5

NGSS.HS-PS3-4

DNA and RNA differ on many qualities, which of the following is NOT a difference?

• Sugar

• Nitrogenous Base

• Phosphate Group

• Strandedness

What element is the basis for all organic molecules?

• nitrogen

• hydrogen

• oxygen

• carbon

Tags

NGSS.HS-LS1-6

The chemical process that is happening from left to right is called:

• dehydration synthesis

• hydrolysis

• capillary action

• nitrogen cycle

What process is happening that splits the sucrose molecule into one glucose and one fructose molecule?

• dehydration synthesis

• hydrolysis

• capillary action

• carbon cycle

What sets different amino acids apart from each other?

• amine group

• carboxyl group

• central carbon atom

• R group

Tags

NGSS.HS-LS1-6

A growing strand of DNA bonds with new nucleotides at what end?

• 3' end

• 5' end