Chapter 2 Study Guide - The chemistry of life

Front

What is a hydrogen bond?

Back

A hydrogen bond is an attraction between a hydrogen atom with a partial positive charge and another atom with a partial negative charge.

Front

What are lipids made of?

Back

Lipids are made up of glycerol and fatty acids.

Front

What is an acid?

Back

An acid is a compound that produces hydrogen ions in solution.

Front

What is the pH range of a base?

Back

A base has a pH greater than 7, typically between 11 and 14.

Front

Which of the following is NOT a macromolecule found in living organisms?

Back

Sodium chloride is not a macromolecule; it is a salt.

Front

What is the role of proteins in living organisms?

Back

Proteins serve as building blocks for tissues, enzymes, and play a role in biochemical reactions.

Front

What are carbohydrates?

Back

Carbohydrates are organic compounds made of carbon, hydrogen, and oxygen, primarily serving as energy sources.

Front

What is the function of nucleic acids?

Back

Nucleic acids, such as DNA and RNA, store and transmit genetic information.

Front

What is a base?

Back

A base is a substance that can accept hydrogen ions or donate electron pairs in reactions.

Front

What is the difference between saturated and unsaturated fats?

Back

Saturated fats have no double bonds between carbon atoms, while unsaturated fats have one or more double bonds.