Unicellular
Made up of single cells
(bacteria, algae, etc)
Multicellular
Made up of multiple cells;
work together to carry out
jobs; cells can specialize
Animal Cells
-Nucleus (command center;
brain)
-Cytoplasm (nucleus floats in
this jelly like substance)
-Plasma Membrane (flexible
coat that controls what comes
in and out)
-Vacuoles (storage bubbles)
Plant Cells
-Nucleus
-Cell Wall (rigid to help plant
stand up)
-Cytoplasm
-Vacuole (store substances;
water in here puts pressure on
the cell wall to make it stand
up)
-Chloroplasts (sac that
contains pigments to help with
photosynthesis)
Cellular Processes
-Absorption (takes in nutrients)
-Excretion (gets waste out)
-Digestion (breakdown of
food)
-Reproduction (transfers
genetic info to future
generations)
-Response (reaction of an
organism to stimuli)
Digestive System
Changes food into a usable
form by breaking it into smaller
pieces
-Digestive tract (mouth,
esophagus, stomach,
epiglottis, small intestine, large
intestine)
-Pancreas, liver and
gallbladder
Nervous System
-Controls your body’s activities
- Brain (cerebrum, corpus
callosum,
cerebellum),medulla, spinal
cord and nerves
-Voluntary (purposeful
movement)
-Involuntary (don’t require any
thought)
-Neurons carry impulses
(dendrites-toward cell body;
axons-away from cell body)
Skeletal System
-Framework that helps us keep
our shape
-Exoskeleton (outside of the
body to protect inside like
grasshoppers)
-Endoskeleton (skeleton on
inside like humans)
-Ligaments (connects bones)
-Cartilage (soft parts like tip of
your nose)
Muscular System
-Helps us move
-Muscles (tissues that can
shorten length to move)
-Tendon (attach muscle to
bone)
-Biceps, flexor muscles, triceps,
extensor muscles
-Contracts means shorten
Cardiovascular/Circulatory
System
-Body’s main transport system
-(Blood, arteries, veins,
capillaries and heart)
-Blood (moves nutrients,
oxygen, carbon dioxide,
waste)
-Plasma (liquid)
-Red blood cells (hemoglobin
and carries oxygen)
-White blood cells (fight
infection)
-Platelets (clots blood)
-Arteries (blood away from
heart)
-Veins (blood to the heart)
-4 chambers (2 ventricles and
2 atria)
Respiratory System
-Exchanges gas between the
air and blood
(Nose, trachea, bronchioles,
lungs, alveoli, diaphragm)
-Inhale (take in oxygen);
exhale (let out carbon dioxide)