1
A&P 2457 UTA Exam 1 Aranda Questions
with Correct Answers | Updated (100%
Correct Answers)
Serosa (serous membrane) Answer: Thin, double-layered
membranes that cover surfaces in ventral body cavity
Parietal Serosa Answer: Lines internal body cavity walls
Visceral Serosa Answer: Covers internal organs
Kinetic Energy Answer: Energy in motion
Potential Energy Answer: Stored Energy
What four elements make up 96% of the human body? Answer:
Carbon, Hydrogen, Oxygen, and Nitrogen
Atoms Answer: Unique building blocks for each element, smallest
particles of an element with properties of that element
Planetary Model Answer: Simplified and outdated because it
incorrectly depicts electrons in orbits, fixed circular paths
Orbital Model Answer: Current model used that depicts orbitals,
probable regions where an electron is most likely to be located
(rather than fixed orbits)
© 2025 All rights reserved
,2
Atomic Number Answer: The number of protons in the nucleus of
an atom
Mass Number Answer: The total number of protons and neutrons in
the nucleus of an atom
Isotopes Answer: Atoms with the same number of protons but
differ in the number of neutrons they contain (structural variations
of same element)
Atomic Weight Answer: Average of the mass numbers of all isotope
forms of an atom
Radioisotopes Answer: An isotope that has an unstable nucleus and
undergoes radioactive decay
Molecule Answer: General term for 2 or more atoms bonded
together
Compound Answer: Specific molecule that has 2 or more different
kinds of atoms bonded together
Three basic types of mixtures Answer: Solutions, Colloids, and
Suspensions
Solutions Answer: A homogenous mixture where substances are
distributed evenly. Has a solvent & solute.
© 2025 All rights reserved
, 3
Solvent Answer: A liquid substance capable of dissolving other
substances (substance present in greatest amount)
Solute Answer: A substance that is dissolved in a solvent (present in
smaller amounts)
Colloids Answer: Emulsions are heterogeneous mixtures, meaning
that particles are not evenly distributed throughout mixture (Jello)
Suspensions Answer: Heterogeneous mixtures with large, often
visible solutes that tend to settle out (blood)
Differences Between Mixtures and Compounds Answer: 1. Unlike
compounds, mixtures do not involve chemical bonding between
components
2. Mixtures can be separated by physical means, such as straining
and filtering; compounds can be separated only by breaking their
chemical bonds
3. Mixtures can be heterogeneous or homogeneous; compounds are
only homogeneous
Chemical Bonds Answer: "Energy Relationships" between electrons
of reacting atoms
Three Major Types of Chemical Bonds Answer: Ionic bonds,
covalent bonds, hydrogen bonds
© 2025 All rights reserved
A&P 2457 UTA Exam 1 Aranda Questions
with Correct Answers | Updated (100%
Correct Answers)
Serosa (serous membrane) Answer: Thin, double-layered
membranes that cover surfaces in ventral body cavity
Parietal Serosa Answer: Lines internal body cavity walls
Visceral Serosa Answer: Covers internal organs
Kinetic Energy Answer: Energy in motion
Potential Energy Answer: Stored Energy
What four elements make up 96% of the human body? Answer:
Carbon, Hydrogen, Oxygen, and Nitrogen
Atoms Answer: Unique building blocks for each element, smallest
particles of an element with properties of that element
Planetary Model Answer: Simplified and outdated because it
incorrectly depicts electrons in orbits, fixed circular paths
Orbital Model Answer: Current model used that depicts orbitals,
probable regions where an electron is most likely to be located
(rather than fixed orbits)
© 2025 All rights reserved
,2
Atomic Number Answer: The number of protons in the nucleus of
an atom
Mass Number Answer: The total number of protons and neutrons in
the nucleus of an atom
Isotopes Answer: Atoms with the same number of protons but
differ in the number of neutrons they contain (structural variations
of same element)
Atomic Weight Answer: Average of the mass numbers of all isotope
forms of an atom
Radioisotopes Answer: An isotope that has an unstable nucleus and
undergoes radioactive decay
Molecule Answer: General term for 2 or more atoms bonded
together
Compound Answer: Specific molecule that has 2 or more different
kinds of atoms bonded together
Three basic types of mixtures Answer: Solutions, Colloids, and
Suspensions
Solutions Answer: A homogenous mixture where substances are
distributed evenly. Has a solvent & solute.
© 2025 All rights reserved
, 3
Solvent Answer: A liquid substance capable of dissolving other
substances (substance present in greatest amount)
Solute Answer: A substance that is dissolved in a solvent (present in
smaller amounts)
Colloids Answer: Emulsions are heterogeneous mixtures, meaning
that particles are not evenly distributed throughout mixture (Jello)
Suspensions Answer: Heterogeneous mixtures with large, often
visible solutes that tend to settle out (blood)
Differences Between Mixtures and Compounds Answer: 1. Unlike
compounds, mixtures do not involve chemical bonding between
components
2. Mixtures can be separated by physical means, such as straining
and filtering; compounds can be separated only by breaking their
chemical bonds
3. Mixtures can be heterogeneous or homogeneous; compounds are
only homogeneous
Chemical Bonds Answer: "Energy Relationships" between electrons
of reacting atoms
Three Major Types of Chemical Bonds Answer: Ionic bonds,
covalent bonds, hydrogen bonds
© 2025 All rights reserved
