Chemistry of Life Review

Front

What is the reason water molecules stick together?

Back

Water molecules stick together because one side has a positive charge (hydrogen) and the other side has a negative charge (oxygen), leading to hydrogen bonding.

Front

What temperature does the enzyme work best at?

Back

The enzyme works best at 30°C.

Front

What are the products of the chemical reaction involving calcium and oxygen?

Back

The products are 2CaO.

Front

What major class of biomolecule is nucleic acid?

Back

Nucleic acids are one of the four major classes of biomolecules, which include DNA and RNA.

Front

What do green bonds represent in a molecular structure?

Back

Green bonds represent hydrogen bonds.

Front

Define hydrogen bond.

Back

A hydrogen bond is a weak attraction between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is an ionic bond?

Back

An ionic bond is a chemical bond formed through the electrostatic attraction between oppositely charged ions.

Front

What are carbohydrates?

Back

Carbohydrates are organic compounds made of carbon, hydrogen, and oxygen, typically in a ratio of 1:2:1, and are a primary source of energy.

Front

What are lipids?

Back

Lipids are a diverse group of hydrophobic organic molecules, including fats, oils, and steroids, that are important for energy storage and cell membrane structure.