Name the four macromolecules (organic molecules), draw their structure and describe the main functions of each. Explain the term polarity, and how it relates to water and its properties

Sure! Let’s break down your question into two parts for clarity.

### Four Macromolecules

1. Carbohydrates:

– Structure: Composed of carbon, hydrogen, and oxygen (often in a 1:2:1 ratio). The simplest form is monosaccharides like glucose.

– Function: Primary energy source for the body and important for storage (e.g., glycogen in animals, starch in plants).

2. Proteins:

– Structure: Made of amino acids linked by peptide bonds, and they have complex structures (primary, secondary, tertiary, and quaternary).

– Function: Serve as enzymes, structural components, hormones, and assist in cell signaling and immune responses.

3. Lipids:

– Structure: Composed of glycerol and fatty acids. Examples include triglycerides and phospholipids.

– Function: Serve as long-term energy storage, form cell membranes, and act as signaling molecules (e.g., hormones).

4. Nucleic Acids:

– Structure: Composed of nucleotides, which include a sugar, phosphate group, and nitrogenous base (DNA and RNA).

– Function: Store and transmit genetic information; RNA is involved in protein synthesis.

### Polarity and Water

Polarity refers to the distribution of electrical charge over the atoms