APHY 101 MIDTERM EXAM 2025 LATEST QUESTIONS AND
CORRECT ANSWERS IVY TECH COMMUNITY COLLEGE
INDIANAPOLIS
What is the difference between anatomy and physiology? -
Answer-Anatomy is the study of the structure of body parts, whereas physiology is the
study of the function of body parts
What are the levels of organization? -
Answer-subatomic particles, atom, molecule, macromolecule, organelle, cell, tissue,
organ, organ system, organism
What are the requirements of life? -
Answer-Water, food, oxygen, heat, pressure
What are the characteristics of life? -
Answer-Movement (internal or gross); Responsiveness (reaction to internal or external
change); Growth (increase in size without change in shape); Reproduction (new
organisms or new cells); Respiration (use of oxygen; removal of CO2); Digestion
(breakdown of food); Absorption (movement of substances through membranes and
into fluids); Circulation (movement within body fluids); Assimilation (changing nutrients
into chemically different forms); Excretion (removal of metabolic wastes)
Define homeostasis -
Answer-Body's maintenance of a stable environment
What is a homeostatic mechanism? -
Answer-the body maintains homeostasis through a number of self-regulating control
systems; examples are regulating body temperature and pressure sensitive receptors
to regulate body pressure
Define matter -
Answer-Anything that takes up space and has mass (weight). It is composed of
elements.
Define element -
Answer-fundamental substance composed of chemically identical atoms
Define atoms -
Answer-smallest particle of an element; basic unit of matter
What is the structure of an atom? -
Answer-An atom consists of a nucleus containing protons and neutrons, with electrons
in
orbit around the nucleus.
,Atomic nucleus -
Answer-the nucleus contains protons and neutrons
Proton -
Answer-subatomic particle that has a positive charge
Neutron -
Answer-subatomic particle that has no charge
Electron -
Answer-subatomic particle that has a negative charge
, Atomic number -
Answer-number or protons in nucleus
Atomic mass -
Answer-number of protons plus number of neutrons
What are covalent bonds? -
Answer-Covalent bonds are formed when atoms share electrons to become stable with
filled
outer shells
What are ionic bonds? -
Answer-2 oppositely charged atoms form this bond when electrons are transferred
from one atom to another atom
What are hydrogen bonds? -
Answer-Weak attraction between positive end of one polar molecule and negative end
of another polar molecule; formed between water molecules
Define ion -
Answer-When atoms gain or lose electrons, they become ions.
Define synthesis reaction -
Answer-Two or more atoms or molecules are joined together
Define decomposition reaction -
Answer-Larger molecules are broken down into smaller ones
Define exchange reaction -
Answer-Parts of molecules trade places
Define reactant -
Answer-The starting materials of the reaction - the atoms, ions, or molecules
Define product -
Answer-Substances formed at the end of the chemical reaction
Define catalyst -
Answer-influence the rates of chemical reactions
What is an acid? -
Answer-Electrolytes that release hydrogen ions in water
What is a base? -
Answer-Electrolytes that release ions that combine with hydrogen ions in water
CORRECT ANSWERS IVY TECH COMMUNITY COLLEGE
INDIANAPOLIS
What is the difference between anatomy and physiology? -
Answer-Anatomy is the study of the structure of body parts, whereas physiology is the
study of the function of body parts
What are the levels of organization? -
Answer-subatomic particles, atom, molecule, macromolecule, organelle, cell, tissue,
organ, organ system, organism
What are the requirements of life? -
Answer-Water, food, oxygen, heat, pressure
What are the characteristics of life? -
Answer-Movement (internal or gross); Responsiveness (reaction to internal or external
change); Growth (increase in size without change in shape); Reproduction (new
organisms or new cells); Respiration (use of oxygen; removal of CO2); Digestion
(breakdown of food); Absorption (movement of substances through membranes and
into fluids); Circulation (movement within body fluids); Assimilation (changing nutrients
into chemically different forms); Excretion (removal of metabolic wastes)
Define homeostasis -
Answer-Body's maintenance of a stable environment
What is a homeostatic mechanism? -
Answer-the body maintains homeostasis through a number of self-regulating control
systems; examples are regulating body temperature and pressure sensitive receptors
to regulate body pressure
Define matter -
Answer-Anything that takes up space and has mass (weight). It is composed of
elements.
Define element -
Answer-fundamental substance composed of chemically identical atoms
Define atoms -
Answer-smallest particle of an element; basic unit of matter
What is the structure of an atom? -
Answer-An atom consists of a nucleus containing protons and neutrons, with electrons
in
orbit around the nucleus.
,Atomic nucleus -
Answer-the nucleus contains protons and neutrons
Proton -
Answer-subatomic particle that has a positive charge
Neutron -
Answer-subatomic particle that has no charge
Electron -
Answer-subatomic particle that has a negative charge
, Atomic number -
Answer-number or protons in nucleus
Atomic mass -
Answer-number of protons plus number of neutrons
What are covalent bonds? -
Answer-Covalent bonds are formed when atoms share electrons to become stable with
filled
outer shells
What are ionic bonds? -
Answer-2 oppositely charged atoms form this bond when electrons are transferred
from one atom to another atom
What are hydrogen bonds? -
Answer-Weak attraction between positive end of one polar molecule and negative end
of another polar molecule; formed between water molecules
Define ion -
Answer-When atoms gain or lose electrons, they become ions.
Define synthesis reaction -
Answer-Two or more atoms or molecules are joined together
Define decomposition reaction -
Answer-Larger molecules are broken down into smaller ones
Define exchange reaction -
Answer-Parts of molecules trade places
Define reactant -
Answer-The starting materials of the reaction - the atoms, ions, or molecules
Define product -
Answer-Substances formed at the end of the chemical reaction
Define catalyst -
Answer-influence the rates of chemical reactions
What is an acid? -
Answer-Electrolytes that release hydrogen ions in water
What is a base? -
Answer-Electrolytes that release ions that combine with hydrogen ions in water
