Dependent
Variable
A group of organs that
work together to perform
a set of functions
value depends on
that of another.
Hypothesis
Organism
Possible
explanation
an individual,
functioning living
thing
Independent
Variable
Organ
A group of tissues
working together to
perform a set of
functions
whose variation does
not depend on that of
another
Organ System
Tissue
A group of cells that
perfrom a specific
function
Cell
Smallest unit of
structure and
function
Endoplasmic
Reticulum
Carries materials
from one part of the
cell to another
Prokaryote
Golgi Body
No Nucleus
Packaging and
distribution
Eukaryote
Nucleus
cell
membrane
determines
what comes in
and out of cell
controls
activities
inside cell
organelle
centrosome
structures inside
cells
nucleus
organelle near
the nucleus of a
cell that contains
the centrioles
mitochondria
power house,
source of energy
production
ribosome
Produces
proteins
vacuole
Stores water,
food, and
waste
lysosome
chemicals that
break down food
and worn-out
cells parts,
recycling
chloroplasts
food producers of the
cell. The organelles are
only found in plant cells
and some protists such
as algae.
Diffusion
the movement of
molecules from an area
of high concentration to
an area of low
concentration
Osmosis
diffusion of water
molecules through a
permeable membrane
Digestive
System
Breaks down food into
substances our body
can use.
Integumentary
System
Receives information
about the external
environment, protects
deeper tissue, excretes
waste.
Muscular
System
Allows us to move
different parts of our
body
Skeletal
System
Protects the delicate
organs in our body,
provides shape and
support
Circulatory
System
Endocrine
System
Moves or transports
oxygen, waste, and
nutrients through
blood.
Hormones direct body
functions.
Respiratory
System
Nervous
System
Controls the body
Takes in oxygen and
takes out waste,
Carbon Dioxide
Hormones
Chemical substance
produced in the body
that controls and
regulates the activity
of certain cells or
organs.
Many hormones are
secreted by special
glands, such as
thyroid hormone pro
duced by the thyroid
gland.
Digestion
is the process where
food is broken
down by the digestive
system into small
nutrients to be
absorbed by the body
Nutrients
are very tiny molecules
that are
broken down from
large molecules to be
absorbed and used by
body cells.
Mechanical
digestion
Changes the physical
form of food (physical
changes)
Chemical
digestion
Changes the chemical
composition of food
into a new substance
with
the aid of digestive
enzymes ( chemical
changes)