Exam 4: Biomolecules

The nonessential amino acids cannot be produced from the other amino acids or from simple organic molecules.

A sucrose molecule is formed by the synthesis reaction between glucose and fructose.

Explain the different functions performed by RNA in the cell.

Phospholipids have a fat-soluble end and a water-soluble end.

The three most common disaccharides-sucrose, lactose, and maltose-each contain at least one molecule of glucose.

A structural lipid found in the cell membrane is a:

The type of lipoprotein associated with "bad" cholesterol and the production of atherosclerotic changes in blood vessels is:

Sugars and starches are both considered to be carbohydrates.

A triglyceride is composed of a glycerol molecule and three of the same type of fatty acid.

The formation of sucrose involves the removal of a molecule of water. This is called:

The function of transfer RNA is to select and adhere to a specific amino acid and place it in the correct sequence in the primary protein strand.

Fats are composed of three fatty acids joined to a molecule of glycerol.

High-density lipoprotein (HDL) is also called the "bad" cholesterol.

Which lipid acts as a "tissue hormone"?

If one side of a DNA molecule is CCTAGGC, the opposite side of the molecule would be CCTAGGC.

Enzymes are functional proteins that bring molecules together or split them apart in chemical reactions.

Both phospholipids and steroids are found in cell membranes.

Which level of protein structure is one that contains several polypeptide chains?

All of the following substances are organic except:

When two molecules of glucose are joined, they form which disaccharide?