Biochemistry

This is a substance that changes the rate of a chemical reaction.

• catalyst

• solute

• solvent

For enzymes to work, it has a spot where molecules dock in. What do we call this spot?

• active site

• substrate

• inhibitor

Water is a _________ molecule.

• nonpolar

• polar

What makes water important to life?

Check all that apply.

• The polarity of water makes it good at dissolving things.

• Water can move nutrients around.

• Water dehydrates our body.

This is the attraction of water molecules for each other.

• cohesion

• adhesion

• hydrogen bonding

Of all the elements, ________ is the most significant to life.

• carbon

• hydrogen

• nitrogen

These are molecules that contain carbon covalently bonded to other elements.

• inorganic compounds

• organic compounds

Below are the organic compounds.

Check all that apply.

• carbohydrates

• lipids

• protein

• water

• nucleotides

Rice, potatoes, bread and legumes are good sources of _________.

• carbohydrates

• lipids

• proteins

• nucleotides

This is the intermolecular connection between hydrogen atoms of water molecules with other molecules.