©THESTAR EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
PN105 Chapters 2&5 Exam Study Guide.
Aqueous solution - answer✔a solution in which water is the solvent
Dissociation - answer✔when a compound breaks down and separates into smaller components
in a solution
Enzyme - answer✔Protein that helps speed up reactions; a biological catalyst
Which body system produces heat and maintains body posture? - answer✔Muscular
Reactant - answer✔Substances used in a reaction
Solvent - answer✔Substance in which another substance is dissolved into
Feces - answer✔Undigested material in the gastrointestinal tract
Solute - answer✔Substance dissolved into another substance
Stimuli - answer✔Factors in the environment such as heat, light, pressure, and temperature
that can be recognized by the nervous system
Dehydration synthesis - answer✔When water (OH and H) are taken out from two smaller
molecules to create a larger molecule
accessory organs of the digestive system - answer✔teeth, tongue, salivary glands, liver,
gallbladder, pancreas
Proton - answer✔A subatomic particle with a positive charge
Isotopes - answer✔Atoms of the same element but with different atomic weights
Neutron - answer✔A subatomic particle that has no charge and that is found in the nucleus of
an atom
Phospholipid - answer✔Structured lipid found in cell membranes
High levels of radiation can cause
A. Normal cells to multiply rapidly
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, ©THESTAR EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
B. The destruction of normal cells only
C. Destruction of cancer cells only
D. None of the above - answer✔D, none of the above
Atomic mass - answer✔the sum of the protons and neutrons in an atom
Atomic number - answer✔the number of protons in the nucleus of an atom
Electrolytes - answer✔When an ionic compound dissociates in water it forms these
Buffer - answer✔A substance that resists a change in pH
Covalent bond - answer✔A chemical bond that involves sharing a pair of electrons between
atoms in a molecule
Compound - answer✔A substance made up of atoms of two or more different elements joined
by chemical bonds
Which of the following is not a function of the integumentary system?
A. Integration
B. Temperature regulation
C. Ability to serve as a sense organ
D. Protection - answer✔A, integration is not a function of the integumentary system
Lungs are part of what system> - answer✔Respiratory
Skin is part of which system? - answer✔Integumentary
Which of the following statements about the gallbladder is true?
A. It is part of the gastrointestinal system
B. It lies superior to the heart
C. It is designated as a primary organ
D. It is an essential organ for the production of insulin - answer✔A, the gallbladder is a part of
the gastrointestinal system
Integumentary system - answer✔Protects underlying structures, sensory precepion, and
regulation of body temperature
Skeletal system - answer✔Makes blood cells, provides a rigid framework, and stores minerals
2|Page
ALL RIGHTS RESERVED.
PN105 Chapters 2&5 Exam Study Guide.
Aqueous solution - answer✔a solution in which water is the solvent
Dissociation - answer✔when a compound breaks down and separates into smaller components
in a solution
Enzyme - answer✔Protein that helps speed up reactions; a biological catalyst
Which body system produces heat and maintains body posture? - answer✔Muscular
Reactant - answer✔Substances used in a reaction
Solvent - answer✔Substance in which another substance is dissolved into
Feces - answer✔Undigested material in the gastrointestinal tract
Solute - answer✔Substance dissolved into another substance
Stimuli - answer✔Factors in the environment such as heat, light, pressure, and temperature
that can be recognized by the nervous system
Dehydration synthesis - answer✔When water (OH and H) are taken out from two smaller
molecules to create a larger molecule
accessory organs of the digestive system - answer✔teeth, tongue, salivary glands, liver,
gallbladder, pancreas
Proton - answer✔A subatomic particle with a positive charge
Isotopes - answer✔Atoms of the same element but with different atomic weights
Neutron - answer✔A subatomic particle that has no charge and that is found in the nucleus of
an atom
Phospholipid - answer✔Structured lipid found in cell membranes
High levels of radiation can cause
A. Normal cells to multiply rapidly
1|Page
, ©THESTAR EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
B. The destruction of normal cells only
C. Destruction of cancer cells only
D. None of the above - answer✔D, none of the above
Atomic mass - answer✔the sum of the protons and neutrons in an atom
Atomic number - answer✔the number of protons in the nucleus of an atom
Electrolytes - answer✔When an ionic compound dissociates in water it forms these
Buffer - answer✔A substance that resists a change in pH
Covalent bond - answer✔A chemical bond that involves sharing a pair of electrons between
atoms in a molecule
Compound - answer✔A substance made up of atoms of two or more different elements joined
by chemical bonds
Which of the following is not a function of the integumentary system?
A. Integration
B. Temperature regulation
C. Ability to serve as a sense organ
D. Protection - answer✔A, integration is not a function of the integumentary system
Lungs are part of what system> - answer✔Respiratory
Skin is part of which system? - answer✔Integumentary
Which of the following statements about the gallbladder is true?
A. It is part of the gastrointestinal system
B. It lies superior to the heart
C. It is designated as a primary organ
D. It is an essential organ for the production of insulin - answer✔A, the gallbladder is a part of
the gastrointestinal system
Integumentary system - answer✔Protects underlying structures, sensory precepion, and
regulation of body temperature
Skeletal system - answer✔Makes blood cells, provides a rigid framework, and stores minerals
2|Page
