Chemistry in Biology

Front

What macromolecule makes up the cell membrane's lining?

Back

Phospholipids are the primary macromolecules that form the cell membrane, consisting of hydrophilic heads and hydrophobic tails.

Front

What is the monomer of carbohydrates called?

Back

The monomer of carbohydrates is called a monosaccharide, which includes simple sugars like glucose and fructose.

Front

Which ion increases in concentration as the pH becomes lower?

Back

Hydrogen ions increase in concentration as the pH decreases, indicating higher acidity.

Front

On the pH scale, which numbers refer to acids?

Back

The pH scale numbers 1-6 refer to acids, with lower numbers indicating stronger acids.

Front

What type of macromolecule are DNA and RNA?

Back

DNA and RNA are examples of nucleic acids, which are essential for genetic information storage and transfer.

Front

What are the building blocks of proteins?

Back

The building blocks of proteins are amino acids, which link together to form polypeptides.

Front

What is the primary function of carbohydrates in living organisms?

Back

The primary function of carbohydrates is to provide energy and serve as structural components in cells.

Front

What is the difference between saturated and unsaturated fats?

Back

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

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts that speed up chemical reactions without being consumed in the process.

Front

What is the significance of the pH scale in biology?

Back

The pH scale measures the acidity or alkalinity of a solution, which is crucial for enzyme activity and cellular functions.