Chemistry of Life

What are the four main groups of carbon-based molecules?

• starches, cholesterol, fatty acids, and amino acids

• sugars, cellulose, triglycerides, and monosaccharides

• polysaccharides, sugars, oils, and polymers

• carbohydrates, lipids, proteins, and nucleic acids

The following elements are all essential for life except

• carbon

• helium

• oxygen

• nitrogen

Enzymes affect the reactions in living cells by changing the

• products of the reaction

• speed of the reaction

• temperature of the reaction

• pH of the reaction

A substance that accelerates the rate of a chemical reaction is called a(an)

• lipid

• molecule

• element

• catalyst

Tags

NGSS.HS-PS1-5

All of the following are examples of lipids except

• oil

• fats

• candle wax

• starches

Examples of nucleic acids?

• DNA and RNA

• carbohydrates

• potatoes

• meats

The basic unit of any molecule; The six common _________ that are necessary for life are SPONCH.

• Elements

• Monomers

• Polymers

• Compounds

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

Tags

NGSS.MS-PS1-2

What is the building block of a polymer?

• monomer

• polypeptide

• monosaccharide

• glycerol

The smallest basic unit of matter is the

• molecule

• atom

• compound

• cell

Tags

NGSS.HS-PS1-7