Question

check your understanding
answer the following questions:

1. on page 3, you learned that carbohydrates are made of sugars or saccharides. a single sugar molecule is known as a monosaccharide. a polymer of many sugars create a polysaccharide. what would a polymer of only two sugars be called? three sugars?
2. describe 3 complications that a person might experience if their body does not take in enough protein.
3. how are carbohydrates and lipids similar? how are they different?

Explanation:

Question 13

A polymer of two sugar (monosaccharide) units is called a disaccharide, and a polymer of three sugar units is called a trisaccharide.

If a person's body doesn't take in enough protein, complications include muscle wasting (due to protein being used for energy), weakened immune system (since antibodies are proteins), slow wound healing (collagen is a protein), and stunted growth in children (proteins are needed for tissue growth).

• Similarities: Both carbohydrates and lipids are organic molecules, contain carbon, hydrogen, and oxygen, and are used as energy sources (carbohydrates for quick energy, lipids for long - term energy storage).
• Differences: Carbohydrates have a 1:2:1 ratio of C:H:O (in monosaccharides, like $C_6H_{12}O_6$), while lipids have much less oxygen relative to carbon and hydrogen. Carbohydrates are more easily and quickly metabolized for energy, while lipids are more energy - dense and used for long - term storage. Carbohydrates include sugars, starches, and fibers; lipids include fats, oils, and steroids.

Answer:

A polymer of two sugars: Disaccharide; Three sugars: Trisaccharide

Question 14