BIO 110 PRACTICE EXAM QUESTIONS AND ANSWERS | COMPLETE
INTRODUCTORY BIOLOGY STUDY GUIDE 2026/2027
An atom is composed of three subatomic particles, name the particle that has a positive charge and is
also used as the atomic number of an element. - ✔✔Proton
An element is - ✔✔A pure substance of only one kind of atom
12C and 14C have the same number of protons but different number of neutrons, they are blank of the
same element. - ✔✔isotopes
During covalent bond formation, the sharing of electrons is not always equal. A good example of this is
water molecule. Oxygen tends to "hog" the electrons rather than share them equally with the hydrogen
atoms. This occurs because oxygen has a higher blank than hydrogen. - ✔✔electronegativity
What type of bond holds an individual water molecule together? - ✔✔polar covalent
A substance that speeds up the rate of a chemical reaction is called a - ✔✔catalyst
Choose the term that is NOT a property of water. - ✔✔nonpolar covalent bonds
Human blood normally has a pH value of 7.4, orange juice had a pH value of 3.5, which is the most
acidic? - ✔✔orange juice
Carbon has an atomic number of 6, why can it form 4 covalent bonds with other atoms? because.... -
✔✔it has four valance electrons
What is the difference between B-D-glucose and B-L glucose? - ✔✔their carbons are numbered
differently, B-D glucose is numbered clockwise and B-L glucose is numbered counter clockwise
A chemical reaction that takes monomers and joins them together, by removing water, to make a
polymer is called a blank reaction - ✔✔dehydration
Name the molecule(s) that is (are) a member of the four major classes of organic molecules found in
living organisms. - ✔✔carbohydrates
proteins
What are saturated fatty acids saturated with? - ✔✔hydrogen atoms
An amphipathic molecule, like a phospholipid, is important for membrane formation because it has.... -
✔✔both a hydrophilic and a hydrophobic region in the same molecule
The monomer of a protein is called a(n) - ✔✔amino acid
The tertiary structure of a protein is caused by - ✔✔the interaction of R-groups
INTRODUCTORY BIOLOGY STUDY GUIDE 2026/2027
An atom is composed of three subatomic particles, name the particle that has a positive charge and is
also used as the atomic number of an element. - ✔✔Proton
An element is - ✔✔A pure substance of only one kind of atom
12C and 14C have the same number of protons but different number of neutrons, they are blank of the
same element. - ✔✔isotopes
During covalent bond formation, the sharing of electrons is not always equal. A good example of this is
water molecule. Oxygen tends to "hog" the electrons rather than share them equally with the hydrogen
atoms. This occurs because oxygen has a higher blank than hydrogen. - ✔✔electronegativity
What type of bond holds an individual water molecule together? - ✔✔polar covalent
A substance that speeds up the rate of a chemical reaction is called a - ✔✔catalyst
Choose the term that is NOT a property of water. - ✔✔nonpolar covalent bonds
Human blood normally has a pH value of 7.4, orange juice had a pH value of 3.5, which is the most
acidic? - ✔✔orange juice
Carbon has an atomic number of 6, why can it form 4 covalent bonds with other atoms? because.... -
✔✔it has four valance electrons
What is the difference between B-D-glucose and B-L glucose? - ✔✔their carbons are numbered
differently, B-D glucose is numbered clockwise and B-L glucose is numbered counter clockwise
A chemical reaction that takes monomers and joins them together, by removing water, to make a
polymer is called a blank reaction - ✔✔dehydration
Name the molecule(s) that is (are) a member of the four major classes of organic molecules found in
living organisms. - ✔✔carbohydrates
proteins
What are saturated fatty acids saturated with? - ✔✔hydrogen atoms
An amphipathic molecule, like a phospholipid, is important for membrane formation because it has.... -
✔✔both a hydrophilic and a hydrophobic region in the same molecule
The monomer of a protein is called a(n) - ✔✔amino acid
The tertiary structure of a protein is caused by - ✔✔the interaction of R-groups
