APHY 101 MIDTERM FINAL PAPER 2026
COMPLETE QUESTIONS WITH SOLUTIONS
GUARANTEED TO PASS
◉ 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
COMPLETE QUESTIONS WITH SOLUTIONS
GUARANTEED TO PASS
◉ 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
