Chapter 2 Review - Biology I

Enzymes are an example of which macromolecule

• Lipids

• Carbohydrates

• Proteins

• Nucleic Acids

Tags

NGSS.HS-LS1-1

Macromolecules are organic compounds. All organic compounds contain this element:

• Oxygen

• Carbon

• Nitrogen

• Hydrogen

What is the monomer of proteins?

• amino acids

• nucleic acids

• lipids

• fatty acids

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Substance formed by chemically joining 2 or more atoms

• enzyme

• electron

• compound

• protein

Tags

NGSS.MS-PS1-1

In a covalent bond, which of the following is happening?

• Atoms are sharing protons

• Atoms are transferring their electrons

• Atoms are sharing electrons

• Atoms are transferring their protons

Tags

NGSS.HS-PS1-1

What type of electron is available to form bonds

• valence

• ionic

• covalent

• negative

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In a water molecule, shared electrons spend more time around the oxygen than the hydrogen, making the hydrogen atoms

• slightly positive

• very positive

• slightly negative

• very negative

Carbon has ____ valence electrons making it easy to form strong covalent bonds.

• 2

• 3

• 4

• 6

Tags

NGSS.HS-PS1-1

Molecule with an uneven charge

• ion

• isotope

• cohesion

• polar

It takes a lot of energy to raise the temperature of water; therefore, water has

• high pH

• adhesion

• high heat capacity

• polarity