Shared Flashcard Set

Details

EMO
EMO
27
Biology
9th Grade
05/19/2014

Additional Biology Flashcards

 


 

Cards

Term
Receptor Molecules
Definition
certain protein molecules in the cell
membrane that can receive chemical
messages from other cells
Term
Hormones
Definition
a chemical produced in the endocrine
glands that travels via the bloodstream
Term
Respiration
Definition
the process by which the chemical
bond energy stored in nutrients is
released for use in cells
Term
Circulation
Definition
the flow of materials within a cell as
well as between parts of a
multicellular organism
Term
Excretion
Definition
the removal of all the wastes
produced by the cells of the body
Term
Immunity
Definition
the body’s ability to destroy pathogens
before they cause disease
Term
Photosynthesis
Definition
the process by which some organisms
are able to capture light energy and use
it to make food from carbon dioxide
and water
Term
Homeostasis
Definition
the ability of an organism to maintain a stable internal environment even when
the external environment changes
Term
Gas Exchange
Definition
the process of obtaining oxygen from
the environment and releasing carbon
dioxide
Term
Dynamic Equilibrium
Definition
the constant small corrections that
normally occur to keep an organism’s
internal environment within the limits needed for survival
Term
Feedback Mechanism
Definition
a cycle in which the output of a system
either modifies or reinforces the first
action taken by the system
Term
Stimulus
Definition
any change in the environment that
causes an organism to react
Term
Pancreas
Definition
an endocrine organ that secretes insulin
Term
Insulin
Definition
a hormone that prompts glucose to
move from the blood into body cells
,resulting in a lower glucose level in the blood
Term
Guard Cells
Definition
specialized cells that control the
opening and closing of the pores on the
surface of a leaf
Term
Disease
Definition
a condition, other than injury, that
prevents the body from working as it
should
Term
Pathogen
Definition
an organism that invades the body,
causing disease
Term
Virus
Definition
a nonliving particle of protein and
genetic material that reproduces by
invading the cell of a living organism
Term
Parasite
Definition
an organism that survives by living and
feeding on other organisms
Term
Immune System
Definition
the body’s primary defense against
disease causing pathogens
Term
Antigen
Definition
a molecule found on the outer surfaces
of cells that the immune system
recognizes as either part of the body or an outside invader
Term
Antibody
Definition
a protein, produced by the immune
system, that either attacks invading
pathogens or marks them for killing
Term
Microbe
Definition
any microscopic organism
Term
Vaccine
Definition
a substance made of weakened, killed,
or partial pathogens and designed to
protect the body from future invasions
of that pathogen
Term
Allergy
Definition
a condition in which a person’s
immune system is overly sensitive to
environmental substances that are
normally harmless
Term

[image]

What is structure X?

Definition
A Receptor
Term

[image]

What are the specialized cells shown in the picture?

Definition
Guard Cells: Control the opening and closing of the stomates.
Supporting users have an ad free experience!