APHY 101 MIDTERM FINAL EXAM Questions
and Answers (2024/2025) (Verified Answers)
Graded A+
What is the difference between eccrine and apocrine sweat glands? -
CORRECT>>>>Eccrine sweat glands are most numerous and respond throughout to
bodytemperature elevated by environmental heat or physical exertion.
What is the difference between anatomy and physiology? - CORRECT>>>>Anatomy is
thestudy of the structure of body parts, whereas physiology is the study of the function
of body parts
What are the levels of organization? - CORRECT>>>>subatomic particles, atom,
molecule, macromolecule, organelle, cell, tissue, organ, organ system, organism
What are the requirements of life? - CORRECT>>>>Water, food, oxygen, heat, pressure
What are the characteristics of life? - CORRECT>>>>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 - CORRECT>>>>Body's maintenance of a stable environment
What is a homeostatic mechanism? - CORRECT>>>>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 - CORRECT>>>>Anything that takes up space and has mass (weight). It
iscomposed of elements.
Define element - CORRECT>>>>fundamental substance composed of chemically
identical atoms
Define atoms - CORRECT>>>>smallest particle of an element; basic unit of matter
, What is the structure of an atom? - CORRECT>>>>An atom consists of a nucleus
containing protons and neutrons, with electrons in
orbit around the nucleus.
Atomic nucleus - CORRECT>>>>the nucleus contains protons and neutrons
Proton - CORRECT>>>>subatomic particle that has a positive charge
Neutron - CORRECT>>>>subatomic particle that has no charge
Electron - CORRECT>>>>subatomic particle that has a negative charge
Atomic number - CORRECT>>>>number or protons in nucleus
Atomic mass - CORRECT>>>>number of protons plus number of neutrons
What are covalent bonds? - CORRECT>>>>Covalent bonds are formed when atoms
shareelectrons to become stable with filled
outer shells
What are ionic bonds? - CORRECT>>>>2 oppositely charged atoms form this bond
whenelectrons are transferred from one atom to another atom
What are hydrogen bonds? - CORRECT>>>>Weak attraction between positive end of
onepolar molecule and negative end of another polar molecule; formed between water
molecules
Define ion - CORRECT>>>>When atoms gain or lose electrons, they become ions.
Define synthesis reaction - CORRECT>>>>Two or more atoms or molecules are joined
together
Define decomposition reaction - CORRECT>>>>Larger molecules are broken down
intosmaller ones
Define exchange reaction - CORRECT>>>>Parts of molecules trade places
Define reactant - CORRECT>>>>The starting materials of the reaction - the atoms,
ions, ormolecules
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