Study of Atomic Structure, Atoms, Valence Electrons, Octet Rule,
Isotopes, Ionic and Covalent Bonds, Peptide Bonds, Protein Primary
and Tertiary Structure, Enzyme Function, Active Sites, Substrates,
Denaturation, Nucleotides, DNA, RNA, Lipids, Triglycerides,
Phospholipids, Polysaccharides, Monosaccharides, Cellular
Respiration, Glycolysis, Krebs Cycle, Mitochondria, Photosynthesis,
Osmosis, Diffusion, Facilitated Diffusion, Active Transport, and Natural
Selection Exam Questions Verified and Provided with Complete A+
Graded Rationales Latest Updated 2026
A compound has been formed between a metal and non-metal. Without knowing the molecular
formula, what type of chemical bond is more than likely present between the two atoms?
Ionic
The smallest unit of an element that can exist alone or in combination with other elements and
still retain the properties of that element is the ........................?
atom
Most elements react chemically by either gaining or losing electrons in order to achieve a very
stable energy configuration similar to the nearest Noble gas element, which has no more than 8
valence electrons. This is referred to as the:
Octet rule
,Electrons located in the outermost energy shell are called:
valence electrons
Two isotopes of the same element such as Carbon-12 and Carbon-14 have:
equal numbers of electrons and protons, but not neutrons
What type of bond hold the amino acids together in a protein's primary structure?
peptide
A substance that resists in pH is called a:
Buffer
A controlled experiment is one that:
tests the experimental and control groups in parallel
True or False: A Lipid substance containing two fatty acid chains, a glycerol molecule, and a
phosphate groups is called a Triglyceride.
False
,Your instructor asks you to look into your microscope and search for a eukaryotic cell. You will
be looking for a cell that:
is considered a more complex cell with a nuclear membrane
Most of the unique properties of water that make it to the universal solvent result from the fact
that water molecules:
are polar and are able to form hydrogen bonds
True of False: An atom's mass number is the combination of electrons and protons.
False
True of False: a chemical reaction is defined as the making of new chemical bonds and the
breaking of old chemical bonds.
True
True of False: An anion is defined as an atom that has a surplus of negative charge.
True
True or False: Differences among amino acids are due to variations in the functional or "R"
groups of each amino acid.
True
, True of False: Cholesterol has a steroid-like molecular structure
True
This type of energy acquisition where organisms must acquire their chemical food (glucose)
from other sources, is called:
Heterotrophic
Which of the following is NOT a polysaccharide?
fructose
There are ___________ known amino acids
20
The complex, 3-D folding due to the interaction of "R" groups within a polypeptide chain is
termed it's _________ structure.
tertiary
The suger molecule, deoxyribose, found is DNA, contains _________ than does the sugar ribose,
found in RNA.
one less oxygen atom
Isotopes, Ionic and Covalent Bonds, Peptide Bonds, Protein Primary
and Tertiary Structure, Enzyme Function, Active Sites, Substrates,
Denaturation, Nucleotides, DNA, RNA, Lipids, Triglycerides,
Phospholipids, Polysaccharides, Monosaccharides, Cellular
Respiration, Glycolysis, Krebs Cycle, Mitochondria, Photosynthesis,
Osmosis, Diffusion, Facilitated Diffusion, Active Transport, and Natural
Selection Exam Questions Verified and Provided with Complete A+
Graded Rationales Latest Updated 2026
A compound has been formed between a metal and non-metal. Without knowing the molecular
formula, what type of chemical bond is more than likely present between the two atoms?
Ionic
The smallest unit of an element that can exist alone or in combination with other elements and
still retain the properties of that element is the ........................?
atom
Most elements react chemically by either gaining or losing electrons in order to achieve a very
stable energy configuration similar to the nearest Noble gas element, which has no more than 8
valence electrons. This is referred to as the:
Octet rule
,Electrons located in the outermost energy shell are called:
valence electrons
Two isotopes of the same element such as Carbon-12 and Carbon-14 have:
equal numbers of electrons and protons, but not neutrons
What type of bond hold the amino acids together in a protein's primary structure?
peptide
A substance that resists in pH is called a:
Buffer
A controlled experiment is one that:
tests the experimental and control groups in parallel
True or False: A Lipid substance containing two fatty acid chains, a glycerol molecule, and a
phosphate groups is called a Triglyceride.
False
,Your instructor asks you to look into your microscope and search for a eukaryotic cell. You will
be looking for a cell that:
is considered a more complex cell with a nuclear membrane
Most of the unique properties of water that make it to the universal solvent result from the fact
that water molecules:
are polar and are able to form hydrogen bonds
True of False: An atom's mass number is the combination of electrons and protons.
False
True of False: a chemical reaction is defined as the making of new chemical bonds and the
breaking of old chemical bonds.
True
True of False: An anion is defined as an atom that has a surplus of negative charge.
True
True or False: Differences among amino acids are due to variations in the functional or "R"
groups of each amino acid.
True
, True of False: Cholesterol has a steroid-like molecular structure
True
This type of energy acquisition where organisms must acquire their chemical food (glucose)
from other sources, is called:
Heterotrophic
Which of the following is NOT a polysaccharide?
fructose
There are ___________ known amino acids
20
The complex, 3-D folding due to the interaction of "R" groups within a polypeptide chain is
termed it's _________ structure.
tertiary
The suger molecule, deoxyribose, found is DNA, contains _________ than does the sugar ribose,
found in RNA.
one less oxygen atom
