Biology Quiz

Enzymes:

• Are used up in a reaction

• are specific for a specific reaction

• Are not sensitive to temperature

• all of the above

The type of bond formed in the above PROTEIN diagram is a ________ ________.

• Peptide bond

• Ionic bond

• Hydrogen bond

• Covalent bond

A function of carbohydrates is __________:

• store energy

• to carry hereditary information

• insulation

• to catalyze chemical reactions

Unlike carbohydrates and fats, proteins contain _____.

• nitrogen

• hydrogen

• carbon

• oxygen

RNA is an example of a:

• carbohydrate

• nucleic acid

• lipid

• protein

A pH of 1:

• is a strong base

• is neutral

• is a strong acid

• is a weak acid

Most organisms survive best in water with a pH close to _____.

• 10

• 7

• 3

• 14

Tags

NGSS.HS-LS1-3

Water is a good solvent because ________________.

• it is polar

• it is nonpolar

• it has a low specific heat

• it can dissolve lipids

Tags

NGSS.HS-PS1-3

Why is water an excellent temperature buffer?

• high specific heat

• low specific heat

• neutral pH

• is nonpolar

Tags

NGSS.HS-PS3-4

Water is known as the universal solvent, however, not everything can dissolve in water. Which of the following cannot dissolve in water?

• Polar molecules

• polar covalent compounds

• Lipids

• Both a and c