Exam 2: Chemical Composition of the Body

Organic acids contain carbonyl groups.

Which of the following subatomic particles have negligible mass?

The atomic nucleus does not contain ____________,which are negatively charged subatomic particles.

Water molecules form _______________ ions when they associate with a hydrogen ion.

Which of the following is NOT a function of a purine-containing nucleotide?

The pH of a solution is directly proportional to the hydrogen ion concentration of the solution.

Which of the following is NOT a component of DNA?

Which of the following is NOT a type of lipid?

_______________ is a structural protein found in tendons and ligaments.

Isotopes have the same ___________ number,but a different __________ number.

Molecules with polar covalent bonds are hydrophobic.

Water makes up _____ of the total body weight of an average adult.

The secondary structure of proteins is/are

The backbone of a DNA molecule is a chain of

Unsaturated fatty acids contain more hydrogen atoms than saturated fatty acids of the same length.

Glucose is stored as a polysaccharide to prevent osmosis of water into the cells.

How many amino acids are present for a polypeptide chain to be called a protein?

The white part of a cooked egg is due to denatured albumin proteins.

An element with 5 protons,5 neutrons,and 5 electrons would have an atomic number of 15.

Carbohydrate molecules have a ratio of twice as many oxygen atoms to carbon atoms.