Exam 2: Chemistry Comes to Life

Which of the following monomers is not paired correctly?

Your roommate is experiencing heartburn and asks you to purchase her an antacid.Chemically speaking,you know that the antacid will help eliminate her pain because ________.

________ refers to a structure of a protein in which two or more polypeptide chains bind together to form a functional protein.

Athletes are often told to eat starch before a strenuous athletic event.What monomer can be released from starch after hydrolysis,and what is it used for? Because cellulose (fiber)is made of the same type of monomer as starch,why aren't athletes told to eat fiber before an event?

Which of the following carbohydrates is made by plants and is not digested by humans?

The compound magnesium chloride (MgCl2)turns into Mg++ and Cl- when placed in water.You can guess that the Mg and Cl atoms are held together normally by a(n)________ bond.

A polysaccharide that is made by plants and can be digested by humans is ________.

Match each definition in the first column to the correct term in the second column. -A process that causes a three-dimensional protein to change shape,resulting in the loss of biological function.

Atoms that have the same number of protons but differ in the number of neutrons are called ________.

Match each definition in the first column to the correct term in the second column. -The smallest molecular units of carbohydrates,also known as simple sugars.

Partially hydrogenated fats are also referred to as ________ fats.

Based on your knowledge of the chemical composition of humans,your body would contain the largest amount of ________.

A molecule with hydrophobic properties and polar molecular attributes would be called a(n)________.

Your friend tells you that all dietary fat is bad for your health.Is this correct?

By analyzing the chemical formulas,you can determine that this molecule, CH₃CH(NH₂)COOH,is a(n)________,whereas the molecule C₅H₁₀O₅ is a(n)________.

Lipids that regulate metabolic processes in biological systems are called ________.

Which of the following is not found in ATP?

Regulatory lipids that control metabolic processes or cellular functions are called ________.

Saturated fatty acids are so named because they are saturated with ________.

The Cl ion has a single negative charge and the atomic number of 17.How many electrons are on its innermost shell?