Human Biology Chapter 3 questions
with correct answers.
cell doctrine ANS - (biology) the theory that cells form the fundamental structural and functional units
of all living organisms
plasma membrane ANS - thin outer boundary of a cell that regulates the traffic of chemicals between
the cell and its surroundings
eukaryotes ANS - organisms made up of one or more cells that have a nucleus and membrane-bound
organelles
organelles ANS - tiny structures that carry out functions necessary for the cell to stay alive
prokaryotes ANS - organisms whose cells lack a nucleus
muscle cells ANS - contract and relax to move parts of the body
nerve cells ANS - a specialized, impulse-conducting cell that is the functional unit of the nervous
system, consisting of the cell body and its processes, the axon and dendrites
passive transport ANS - the movement of materials through a cell membrane without using energy
diffusion ANS - process by which molecules tend to move from an area where they are more
concentrated to an area where they are less concentrated
osmosis ANS - diffusion of molecules through a semipermeable membrane from a place of higher
concentration to a place of lower concentration until the concentration on both sides is equal
facilitated diffusion ANS - the transport of substances through a cell membrane along a concentration
gradient with the aid of carrier proteins
with correct answers.
cell doctrine ANS - (biology) the theory that cells form the fundamental structural and functional units
of all living organisms
plasma membrane ANS - thin outer boundary of a cell that regulates the traffic of chemicals between
the cell and its surroundings
eukaryotes ANS - organisms made up of one or more cells that have a nucleus and membrane-bound
organelles
organelles ANS - tiny structures that carry out functions necessary for the cell to stay alive
prokaryotes ANS - organisms whose cells lack a nucleus
muscle cells ANS - contract and relax to move parts of the body
nerve cells ANS - a specialized, impulse-conducting cell that is the functional unit of the nervous
system, consisting of the cell body and its processes, the axon and dendrites
passive transport ANS - the movement of materials through a cell membrane without using energy
diffusion ANS - process by which molecules tend to move from an area where they are more
concentrated to an area where they are less concentrated
osmosis ANS - diffusion of molecules through a semipermeable membrane from a place of higher
concentration to a place of lower concentration until the concentration on both sides is equal
facilitated diffusion ANS - the transport of substances through a cell membrane along a concentration
gradient with the aid of carrier proteins
