Chemistry of Life

A molecule made up of more than one element.

• Compound

• Monomer

• Isotope

• Element

Answer explanation

A COMPOUND is a molecule made up of more than one element.

Water is a common example of a COMPOUND because it is made up of Oxygen and Hydrogen.

Tags

NGSS.MS-PS1-1

Atoms of a certain element, but with different numbers of neutrons.

• Compound

• Isotope

• Monomer

• Water

Answer explanation

ISOTOPE is when you have the same element, but with different numbers of neutrons.

This is an example of three ISOTOPES. The neutrons are blue.

Bond formed when atoms share a pair of electrons.

• Ionic Bond

• Hydrogen Bond

• Oxygen Bond

• Covalent Bond

Answer explanation

COVALENT bonds are when the atoms share a pair of electrons.

Think "co-" and "sharing".

Bond formed when atoms transfer one electron to another atom.

• Ionic Bond

• Covalent Bond

• Hydrogen Bond

• Water Bond

Answer explanation

IONIC BOND is formed when one atom transfers a single electron to another atom.

Between negative (-) and positive (+) atoms typically.

Macromolecule that provides the body with short-term energy. Example: Bread

• Protein

• Carbohydrate

• Nucleic Acid

• Lipid

Answer explanation

CARBOHYDRATES provide the body with short-term energy storage.

Bread, pasta, fruits, wheat, etc...

Tags

NGSS.MS-LS1-7

Macromolecule that helps to build muscle in the body. Example: meat, beans.

• Carbohydrates

• Nucleic Acid

• Protein

• Lipid

Answer explanation

Meat and beans are our main sources of PROTEIN in our diet.

PROTEIN helps to build muscle.

Tags

NGSS.MS-LS3-1

Macromolecule that provides the body with long-term storage of energy. Example: butter, oil.

• Carbohydrates

• Protein

• Nucleic Acid

• Lipids

Answer explanation

LIPIDS is another word for fats. Butter, olive oil, etc... are common examples of fats.

LIPIDS provide long-term storage of energy for the body.

Macromolecule that contains genetic material.

• Nucleic Acid

• Carbohydrate

• Lipid

• Protein

Answer explanation

Genetic material is stored in NUCLEIC ACIDS such as DNA and RNA.

Tags

NGSS.MS-LS3-1

NGSS.MS-LS3-2

The nucleus of an atom is made up of...

• Protons and electrons

• Water and oxygen

• Protons and neutrons

• Electrons and Bonds

Answer explanation

The nucleus is made up of PROTONS and NEUTRONS.

(electrons are on the outside, not in the nucleus)

Which elements is water made up of?

• Carbon and Hydrogen

• Hydrogen and Oxygen

• Hydrogen only

• Oxygen only

Answer explanation

Water is made up of two HYDROGEN molecules and one OXYGEN molecule.

H2O

Tags

NGSS.MS-PS1-1