APHY 101 IVYTECH MIDTERM CH 1 6
COMPREHENSIVE QUESTIONS AND CORRECT
ANSWERS
◉ Name and define the levels of organization of life
Answer: Organelles, cells, tissues, organs, and organ systems
◉ Define Metabolisim
Answer: The sum of all physical and chemical events that obtain,
release, and utilize energy
◉ Define Homeostasis. How does a homeostatic mechanism
maintain homeostasis?
Answer: The body's maintenance of a stable internal environment.
Depend on normal concentrations of water, nutrients, and oxygen,
and normal body temperature and pressure
◉ What is meant by negative feedback? How does negative feedback
affect homeostatic mechanisms?
Answer: Works to correct a deviation from a set point (Tries to get
back to the set point/normal)
,◉ Describe the structure of a serous membrane
Answer: Smooth membrane consisting of 2 layers of epithelial cells
which secrete serous fluid
◉ What are signs of aging at the cellular level?
Answer: Impaired cell division and the ability to break down and
recycle worn cell parts
◉ What is meant by anatomical position?
Answer: Universal body position: Standing erect, facing forward,
upper limbs at the sides, palms facing forward and thumbs out.
◉ Explain why chemistry is an important part of the study of
Physiology
Answer: Body functions depend on cellular functions that, in turn,
result from chemical changes
◉ Atom
Answer: The smallest unit of matter that defines the chemical
elements
◉ Element
Answer: Fundamental substances in which all matter is composed of
, ◉ Molecule
Answer: 2 or more atoms may combine to form a molecule
◉ Compound
Answer: A substance made from two or more elements chemically
combined
◉ Name the bulk elements of the body
Answer: Carbon, Hydrogen, Oxygen, Nitrogen, Sulfur, and
Phosphorus
◉ What do atomic number and atomic weight of an atom represent?
Answer: Atomic Number is the number of protons in the atoms of a
particular element/Atomic Weight is the number of protons plus the
number of neutrons in each of an element's atoms
◉ Define Ion. How do we indicate in a molecular formula if an atom
is an ion?
Answer: Ions are atoms that gain or lose electrons and become
electrically charged
◉ Isotope
COMPREHENSIVE QUESTIONS AND CORRECT
ANSWERS
◉ Name and define the levels of organization of life
Answer: Organelles, cells, tissues, organs, and organ systems
◉ Define Metabolisim
Answer: The sum of all physical and chemical events that obtain,
release, and utilize energy
◉ Define Homeostasis. How does a homeostatic mechanism
maintain homeostasis?
Answer: The body's maintenance of a stable internal environment.
Depend on normal concentrations of water, nutrients, and oxygen,
and normal body temperature and pressure
◉ What is meant by negative feedback? How does negative feedback
affect homeostatic mechanisms?
Answer: Works to correct a deviation from a set point (Tries to get
back to the set point/normal)
,◉ Describe the structure of a serous membrane
Answer: Smooth membrane consisting of 2 layers of epithelial cells
which secrete serous fluid
◉ What are signs of aging at the cellular level?
Answer: Impaired cell division and the ability to break down and
recycle worn cell parts
◉ What is meant by anatomical position?
Answer: Universal body position: Standing erect, facing forward,
upper limbs at the sides, palms facing forward and thumbs out.
◉ Explain why chemistry is an important part of the study of
Physiology
Answer: Body functions depend on cellular functions that, in turn,
result from chemical changes
◉ Atom
Answer: The smallest unit of matter that defines the chemical
elements
◉ Element
Answer: Fundamental substances in which all matter is composed of
, ◉ Molecule
Answer: 2 or more atoms may combine to form a molecule
◉ Compound
Answer: A substance made from two or more elements chemically
combined
◉ Name the bulk elements of the body
Answer: Carbon, Hydrogen, Oxygen, Nitrogen, Sulfur, and
Phosphorus
◉ What do atomic number and atomic weight of an atom represent?
Answer: Atomic Number is the number of protons in the atoms of a
particular element/Atomic Weight is the number of protons plus the
number of neutrons in each of an element's atoms
◉ Define Ion. How do we indicate in a molecular formula if an atom
is an ion?
Answer: Ions are atoms that gain or lose electrons and become
electrically charged
◉ Isotope
