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69 Cards in this Set

  • Front
  • Back
atom
the smalles stable of unit of matter in creation
Molecule
two or more atoms linked together to make a substance with unique properties
photosynthesis
the process by which plant uses the energy of sunlight and certain chemicals to produce its own food.
receptors
special structures of chemicals that allow living organisms to sense the conditions of their surroundings.
Cell
The smallest unit of life in creation
DNA
set of instrucions that takes the chemicals which make up life and arranges them in just the right way to produce a living system.
DNA is a molecule
Prokaryotic Cell
a cell that has no organelles
Eukaryotic cell
a cell with organelles
Pathogen
an organism that causes disease
decomposers
organisms that break fown the dead remains of other organisms.
Vegetative reproduction
process by which the stem of a plant can form new roots and develop into a mature plant.
Axial Skelton
THe protion of the skeleton that supporst and procets the head, neck and trunk.
Appendicular skelton
the portion of the skelton that attaches to the axial skeleton and has the lmbs attached to it.
Exoskeleton
a body covering, typically made of a tough, flexible substance called chitin, that provides support and protection.
Symbiosis
two or more different organisms living together so that each benefits from the other.
smooth muscles
Involuntary muscles
Skeletal Muscles
voluntary muscles
Keratinization
process by which cells are hardened and die in order to make hair, nails, and the outer layer of skin
bone marrow
makes blood cells
collagen
makes bones flexible
minerals
makes bones hard
athropods
animals with exoskeletons
ligament
holds bones together in a joint
cartilage
cushions the bones in a join so that they do not rub together painfully.
tendon
connects skeletal muscles to the skeleton
producers
organisms that produce their own food.
consumers
organsims that eat living producers and or other consumers for food.
herbivore
a consumer that eats producers exclusively
carnivore
a consumer that eats only other consumers
omnivore
a consumer that eats both plants and other consumers
basal metabolic rate
the minimum amount of energy required by the body every day.
saturated fats
solids at room temperature
carbohydrates
ususally the first macronutrient that is burned by the body
monosaccharides
what carbohydrates must be broken down into before they are burned.
mitochondrion
the powerhouse of the cell
fats
usually the second macronutirent that is burned by the body.
proteins
usually the last macronutrient that is burned by the body.
polysaccharides
the longest of the three basic kinds of carbohydrates
ectothermic
an organism that does not have a constant internal temperature.
digestion
the process by which and organism breaks doen its food into small units which can be absorbed
vitamin
a chemical substance essential for the normal working of the human body.
pancreas
produces sodimu bicarbonate
stomach
turns the bolus into chyme
liver
produces bile
salivary glands
produce saliva
tongue
moves the food in the mouth to form the bolus
epiglottis
covers the larynx when you swallow to make sure that food goes doen the esphagus only.
vitamins, D, E and K
fat soluble
veins
blood vessels that carry blood back to the heart
arties
bllod vessles that carry blood away from the heart
capillaries
tiny, thin walled blood vessels that allow the exchange of gases and nutrients between the blood and cells.
right ventricle
deoxgenated bl0od leaves this chamber on its way to the lungs
plasma
makes up majority of blood
white blood cells
fight disease
red blood cells
conatin hemoglobin
xylem
tubes in plants that transport water up the plant.
blood coagulation
process by which blood clots to keep it from leaking out an injured atery.
alveoli
little round sacs that are covered in apillaries
gland
a group of cells that prepare and relase a chemical for use by the body
vaccine
a weakend or inactive version of a pathogen that stimulates the body' production of antibodies which can destroy the pathogen
hormone
a chemical messenger released in the bloodstream that sends signals to distand cells, causing them to change their behavior in specif ways
urinary system
chiefly responsible for regulating water and chemical levels in the fluids of the body
lymphatic system
fighting disease, human system
B cells
make antibodies
hypothalamus
contorls the pituitary gland
thyroid
produces horomones that regulate the basal metabolic rate
pituitary
produces hormones that control many of the endocrine glands.
adrenal
produces cortisol which causes the liver to release glucose in the blood
pancreas
produces insulin which enables glucose to enter the cells.