2026/2027 Exam Questions and
Answers | Already Graded A+
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
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, 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