BIO 151 Exam 1 Study Guide 2026 | Complete Review |
Graded A+
1. What is a proton?
A proton is a neutral particle in the nucleus of an atom.
A proton is a negatively charged particle in the nucleus of an atom.
A proton is a positively charged particle in the nucleus of an atom.
A proton is a positively charged particle located one of the orbitals of
an atom.
2. Describe the role of reactants in a chemical reaction.
Reactants are substances that speed up a chemical reaction without
being consumed.
Reactants are the energy sources required for a chemical reaction.
Reactants are the final substances produced in a chemical reaction.
Reactants are the substances that undergo change during a
chemical reaction to form products.
3. If you were to hydrolyze a disaccharide, what would be the expected
outcome?
Two monosaccharides
A polysaccharide
A glycosidic bond
One disaccharide
4. A proton is a particle with _____
, A positive charge found inside the nucleus
A negative charge found outside the nucleus
A positive charge found outside the nucleus
A negative charge found inside the nucleus
5. What is the definition of an orbital in atomic structure?
A fixed path that electrons follow around the nucleus.
The three-dimensional space where an electron is found 90% of the
time.
The nucleus of an atom where protons and neutrons are located.
A type of chemical bond between atoms.
6. An ionic bond forms because
there is an attraction between two oppositely-charged ions, where
one atom loans one or more electrons to another atom.
nuclei of bonding atoms exchange electrons; the resulting ions are
bonded together by the attractive forces between the negative and
positive nucleons
atoms of two different elements share electrons and protons; the
resulting compound is bonded together by the strong, binding energy
of shared protons
nuclei of two different atoms share electrons, and the resulting
compound is tightly bonded by the very strong, induced,
electronuclear bonds
7. If a cell is synthesizing triglycerides, what type of reaction is occurring to
form the ester linkages between glycerol and fatty acids?
, Hydrolysis
Oxidation
Reduction
Dehydration synthesis
8. What term is used to describe the starting materials in a chemical reaction?
Products
Enzymes
Catalysts
Reactants
9. Describe the role of the atomic nucleus in the structure of an atom.
The atomic nucleus is responsible for the chemical properties of the
atom.
The atomic nucleus serves as the dense core of an atom, containing
protons and neutrons, which contribute to the atom's mass and
positive charge.
The atomic nucleus is a fluid-like substance that fills the atom.
The atomic nucleus is the outer shell of the atom that contains
electrons.
10. A protein is composed of a sequence of chemicals, a long string of building
blocks called ____.
RNA
amino acids
DNA
, genes
11. Hydrophobic substances such as veggie oil are _____ _.
none
nonpolar and attract water molecules
nonpolar and repel water molecules
polar and have an affinity for water
12. Describe the significance of enzymes in metabolic processes.
Enzymes are waste products of metabolic reactions.
Enzymes are structural components of cells.
Enzymes inhibit all chemical reactions in the body.
Enzymes are crucial for accelerating metabolic reactions, allowing
organisms to efficiently process substances.
13. What is a neutron?
negatively charged particle found in atomic nuclei
the positively charged particle found in atomic nuclei
none of the above
uncharged particle found in atomic nuclei
14. What is the definition of an element in the context of chemistry?
A solution that contains dissolved ions.
A mixture of two or more substances.
Graded A+
1. What is a proton?
A proton is a neutral particle in the nucleus of an atom.
A proton is a negatively charged particle in the nucleus of an atom.
A proton is a positively charged particle in the nucleus of an atom.
A proton is a positively charged particle located one of the orbitals of
an atom.
2. Describe the role of reactants in a chemical reaction.
Reactants are substances that speed up a chemical reaction without
being consumed.
Reactants are the energy sources required for a chemical reaction.
Reactants are the final substances produced in a chemical reaction.
Reactants are the substances that undergo change during a
chemical reaction to form products.
3. If you were to hydrolyze a disaccharide, what would be the expected
outcome?
Two monosaccharides
A polysaccharide
A glycosidic bond
One disaccharide
4. A proton is a particle with _____
, A positive charge found inside the nucleus
A negative charge found outside the nucleus
A positive charge found outside the nucleus
A negative charge found inside the nucleus
5. What is the definition of an orbital in atomic structure?
A fixed path that electrons follow around the nucleus.
The three-dimensional space where an electron is found 90% of the
time.
The nucleus of an atom where protons and neutrons are located.
A type of chemical bond between atoms.
6. An ionic bond forms because
there is an attraction between two oppositely-charged ions, where
one atom loans one or more electrons to another atom.
nuclei of bonding atoms exchange electrons; the resulting ions are
bonded together by the attractive forces between the negative and
positive nucleons
atoms of two different elements share electrons and protons; the
resulting compound is bonded together by the strong, binding energy
of shared protons
nuclei of two different atoms share electrons, and the resulting
compound is tightly bonded by the very strong, induced,
electronuclear bonds
7. If a cell is synthesizing triglycerides, what type of reaction is occurring to
form the ester linkages between glycerol and fatty acids?
, Hydrolysis
Oxidation
Reduction
Dehydration synthesis
8. What term is used to describe the starting materials in a chemical reaction?
Products
Enzymes
Catalysts
Reactants
9. Describe the role of the atomic nucleus in the structure of an atom.
The atomic nucleus is responsible for the chemical properties of the
atom.
The atomic nucleus serves as the dense core of an atom, containing
protons and neutrons, which contribute to the atom's mass and
positive charge.
The atomic nucleus is a fluid-like substance that fills the atom.
The atomic nucleus is the outer shell of the atom that contains
electrons.
10. A protein is composed of a sequence of chemicals, a long string of building
blocks called ____.
RNA
amino acids
DNA
, genes
11. Hydrophobic substances such as veggie oil are _____ _.
none
nonpolar and attract water molecules
nonpolar and repel water molecules
polar and have an affinity for water
12. Describe the significance of enzymes in metabolic processes.
Enzymes are waste products of metabolic reactions.
Enzymes are structural components of cells.
Enzymes inhibit all chemical reactions in the body.
Enzymes are crucial for accelerating metabolic reactions, allowing
organisms to efficiently process substances.
13. What is a neutron?
negatively charged particle found in atomic nuclei
the positively charged particle found in atomic nuclei
none of the above
uncharged particle found in atomic nuclei
14. What is the definition of an element in the context of chemistry?
A solution that contains dissolved ions.
A mixture of two or more substances.
