Biochemistry Unit Test Study Game

The atomic number is defined by the number of _______.

• protons
• neutrons
• electrons
• atoms

The positively charged particle in an atom is the ______.

• proton
• neutron
• electron

The negatively charged particle in an atom is the _______.

• neutron
• electron
• proton
• boson

The neutrally charged particle in an atom is the _______.

• proton
• neutron
• electron
• boson

Water sticking to other water molecules is called _____.

• adhesion
• cohesion
• surface tension
• universal solvent

Water sticking to other substances is called ______.

• adhesion
• cohesion
• surface tension
• universal solvent

Water is a polar covalent molecule.  This means that it has a slightly positive end and a slightly negative end.  Which of the following will it NOT dissolve?  

• other polar covalent molecules
• ionic compounds
• nonpolar covalent molecules

Water is a polar covalent molecule.  This means that it has a slightly positive end and a slightly negative end.  Which of the following will it NOT dissolve?  

• other polar covalent molecules
• ionic compounds
• nonpolar covalent molecules

The elements C, H, O, N, P, and S have what in common?  

• They are all used to make organic macromolecules.  
• They are all metals.  
• They all form ionic compounds with group 7.
• They are all noble gases.  

Glucose is a carbohydrate.  What is one of the functions of glucose?  

• Short term energy source
• Long term energy source
• Making cells more flexible