23 Semester Exam Review Anatomy

1. which of the following is not a subatomic particle associated with an atom?

• neutron
• electron
• proton
• ion

2. The most common element in the human body is ________.

• carbon
• oxygen
• hydrogen
• nitrogen

3. The atomic number of an atom is equal to the number of ________ an atom contains.

• protons
• neutrons
• protons and electrons
• neutrons and electrons

4. Polar molecules, like water, result when electrons are shared ___________.

• unequally between atoms
• between ions
• equally between atoms
• or transferred between atoms

8.) A nucleotide of DNA contain three components: ________, ________, and ________.

• deoxyribose; phosphate group, nitrogen-containing base
• ribose; three phosphate groups; nitrogen-containing base
• ribose; two phosphate groups; acid group
• ribose ; a phosphate group; nitrogen-containing base

9.) The atomic number of sodium is 11 while the atomic mass number is 23. Which of the following is NOT true of an atom of sodium?

• 11 protons
• 8 electrons in the valence shell of a neutral sodium atom
• 11 Neutrons
• 11 Electrons
• 1 Electron in the valence shell of a neutral sodium atom

What is the atomic number of the atom below?

• 2
• 3
• 4
• 6
• 12

14) Which of the following solutions is the weakest acid?

• a solution with pH of 2.4
• a solution with pH of 5.2
• a solution with pH of 6.4
• a solution with pH of 8.6
• a solution with pH of 10.1

16.) Which carbohydrate is also known as blood sugar?

• surcorse
• glucose
• ribose
• deoxyribose
• cellulose

18.) The building blocks of a triglyceride are ________.

• three fatty acid chains and one glycerol molecule
• one fatty acid chain and one glycerol molecule
• amino acids
• nucleotides