APHY 101 ANATOMY AND PHYSIOLOGY 1
PRACTICE QUESTIONS AND DETAILED
SOLUTIONS
◉ what are the levels of organization.
Answer: subatomic particle- protons, electrons, neutrons
atom
molecule
macromolecule
organelle
cell
tissue
organ
organ system
organism
◉ what are the characteristics of life?.
Answer: movement
responsiveness
respiration
absorption
,secretion
digestion
assimilation- changing of absorbed substances into chemically
different forms
circulation
reproduction
growth
◉ what are the requirements of life?.
Answer: water
food
heat
pressure
oxygen
◉ define homeostasis.
Answer: maintaining of a stable enviroment
◉ what is a homeostatic mechanism.
Answer: monitors aspects of internal environment and corrects as
needed
*negative feedback mechanism
,◉ define matter.
Answer: anything that takes up space and has mass
◉ element.
Answer: composed of chemically identical atoms
◉ atom.
Answer: smallest particle of atom, basic unit of matter
◉ what are structure of an atom.
Answer: nucleus
protons
neutron
electrons
◉ define nucleus, proton, electron, neutron.
Answer: nucleus- central part of atom
proton- positive charge
electron- negative charge
neutron- no electrical charge
, ◉ ionic bond.
Answer: formed when electrons are transferred from one atom to
another
◉ what are covalent bonds.
Answer: when two molecules share electron
◉ hydrogen bond.
Answer: formed between water molecule, attraction between
positive end of polar molecule and negative end of another polar
molecule
◉ define synthesis, decomposition, and exchange reactions.
Answer: Synthesis- A+B=AB
Decomposition- AB=A+B
exchange- AB+CD=AD+BC
◉ define reactant.
Answer: starting materials of reactions
◉ product.
Answer: ending material
PRACTICE QUESTIONS AND DETAILED
SOLUTIONS
◉ what are the levels of organization.
Answer: subatomic particle- protons, electrons, neutrons
atom
molecule
macromolecule
organelle
cell
tissue
organ
organ system
organism
◉ what are the characteristics of life?.
Answer: movement
responsiveness
respiration
absorption
,secretion
digestion
assimilation- changing of absorbed substances into chemically
different forms
circulation
reproduction
growth
◉ what are the requirements of life?.
Answer: water
food
heat
pressure
oxygen
◉ define homeostasis.
Answer: maintaining of a stable enviroment
◉ what is a homeostatic mechanism.
Answer: monitors aspects of internal environment and corrects as
needed
*negative feedback mechanism
,◉ define matter.
Answer: anything that takes up space and has mass
◉ element.
Answer: composed of chemically identical atoms
◉ atom.
Answer: smallest particle of atom, basic unit of matter
◉ what are structure of an atom.
Answer: nucleus
protons
neutron
electrons
◉ define nucleus, proton, electron, neutron.
Answer: nucleus- central part of atom
proton- positive charge
electron- negative charge
neutron- no electrical charge
, ◉ ionic bond.
Answer: formed when electrons are transferred from one atom to
another
◉ what are covalent bonds.
Answer: when two molecules share electron
◉ hydrogen bond.
Answer: formed between water molecule, attraction between
positive end of polar molecule and negative end of another polar
molecule
◉ define synthesis, decomposition, and exchange reactions.
Answer: Synthesis- A+B=AB
Decomposition- AB=A+B
exchange- AB+CD=AD+BC
◉ define reactant.
Answer: starting materials of reactions
◉ product.
Answer: ending material
