AP Biology Unit 1 Review Quiz

What determines the properties of a biological molecule?

• The temperature at which it melts

• Its state of matter at room temperature

• The sequence and type of its subcomponents

• Its color and size

Tags

NGSS.HS-LS1-6

Why is water considered polar?

• Because of the unequal sharing of electrons between hydrogen and oxygen

• Because it freezes at 0°C

• Due to its ability to dissolve many substances

• It is not polar; it is a nonpolar molecule

Tags

NGSS.HS-PS1-2

What is the significance of hydrogen bonds in water?

• They cause water to freeze

• They result in water's unique properties like cohesion and adhesion

• They have no significant role

• They make water nonpolar

Tags

NGSS.HS-ESS2-5

What is adhesion?

• Attraction between molecules of the same substance

• Repulsion between molecules of different substances

• Attraction between molecules of different substances

• Repulsion between molecules of the same substance

Which cycle is not mentioned as part of the essential cycles for life on Earth?

• Nitrogen cycle

• Sulfur cycle

• Carbon cycle

• Water cycle

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Which element is found in proteins but not in carbohydrates?

• Carbon

• Hydrogen

• Oxygen

• Nitrogen

Tags

NGSS.HS-LS1-6

What is hydrolysis?

• The process of converting water into hydrogen and oxygen

• The process of heating water to its boiling point

• The process of removing water to form a bond

• The process of adding water to break a bond

What is the monomer of proteins?

• Monosaccharides

• Amino acids

• Nucleotides

• Fatty acids

Tags

NGSS.HS-LS1-6

What type of bond is formed between amino acids in a protein?

• Covalent bond

• Peptide bond

• Ionic bond

• Hydrogen bond

What is the primary structure of a protein determined by?

• The folding into alpha helices and beta sheets

• The overall 3D shape of the protein

• The sequence of amino acids

• The number of polypeptide chains