MicroBio: Chapter 2 Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
What defines an element in terms Elements consist of only one type of atom
of and
atomic composition? cannot be chemically separated into
simpler parts.
Which six elements primarily Hydrogen (H), Carbon (C), Nitrogen (N),
compose living matter? Oxygen
(O), Phosphorus (P), and Sulfur (S).
What are the three main types of Ionic, Covalent, and Hydrogen bonds.
chemical bonds?
How do ionic bonds form? Ionic bonds form through the gain or loss
of
electrons, resulting in attraction between
negatively and positively charged ions.
What is the difference between an An anion is formed when an atom gains
anion and a cation? electrons,
while a cation is formed when an atom
loses
electrons.
, What characterizes covalent Covalent bonds are the strongest type of
bonds? bond
where atoms share electrons.
What is a compound? A compound is a molecule containing
atoms of
different elements.
What distinguishes polar Polar molecules have unequal sharing of
molecules electrons,
from nonpolar molecules? while nonpolar molecules have equal
sharing.
What are hydrogen bonds and Hydrogen bonds are weak interactions that
their occur
strength? between molecules.
What is the general process of Chemical reactions involve the transfer of
chemical reactions? electrons, making and breaking of bonds.
What are the three types of Synthesis (A+B→AB), Decomposition
chemical (AB→A+B),
reactions? and Exchange (AB+CD→AC+BD).
What role do enzymes play in Enzymes act as catalysts that speed up
chemical reactions? the rate of
reactions.
Answers with Verified Solutions | Latest
Updated 2026
What defines an element in terms Elements consist of only one type of atom
of and
atomic composition? cannot be chemically separated into
simpler parts.
Which six elements primarily Hydrogen (H), Carbon (C), Nitrogen (N),
compose living matter? Oxygen
(O), Phosphorus (P), and Sulfur (S).
What are the three main types of Ionic, Covalent, and Hydrogen bonds.
chemical bonds?
How do ionic bonds form? Ionic bonds form through the gain or loss
of
electrons, resulting in attraction between
negatively and positively charged ions.
What is the difference between an An anion is formed when an atom gains
anion and a cation? electrons,
while a cation is formed when an atom
loses
electrons.
, What characterizes covalent Covalent bonds are the strongest type of
bonds? bond
where atoms share electrons.
What is a compound? A compound is a molecule containing
atoms of
different elements.
What distinguishes polar Polar molecules have unequal sharing of
molecules electrons,
from nonpolar molecules? while nonpolar molecules have equal
sharing.
What are hydrogen bonds and Hydrogen bonds are weak interactions that
their occur
strength? between molecules.
What is the general process of Chemical reactions involve the transfer of
chemical reactions? electrons, making and breaking of bonds.
What are the three types of Synthesis (A+B→AB), Decomposition
chemical (AB→A+B),
reactions? and Exchange (AB+CD→AC+BD).
What role do enzymes play in Enzymes act as catalysts that speed up
chemical reactions? the rate of
reactions.
