Review for quiz!
Sections 1.12 - 1.13
Section 1.12
What is a TISSUE ?
Section 1.12
What is a TISSUE ?
I)
II)
III)
IV)
A group of cells that are similar in: Shape
& Function
In humans, there are 4 basic types of
tissue: epithelial, connective, muscular,
and nervous tissue. * See handout
Cells from different tissues look
different
They are organized into larger structures
called organs
Section 1.12…continued
Epithelial
Tissue?
Section 1.12…continued
Epithelial
Tissue?
covers the body surface and forms
the lining for most internal cavities.
major function: protection,
secretion, absorption, and filtration.
Epithelial cells tend to be long & flat
Section 1.12…continued
Connective
Tissue?
the most abundant and widely
distributed of the tissues
perform many functions in support
and protection.
*Fat Tissue is in this category
Section 1.12…continued
Nervous
Tissue?
Performs functions of receiving
stimuli & conducting impulses to and
from all parts of the body.
Nerve cells or neurons are long and
string-like.
Section 1.12…continued
Muscle
Tissue?
there are 3 types of muscle tissue:
skeletal, smooth, and cardiac
Performs contraction duties
Section 1.12…continued
What
is an ORGAN?
Section 1.12…continued

I)
II)
What is an ORGAN?
Large structure composed of
several different types of tissues
Specialized to carry out a specific
function. It has at least one
function and some may have several
functions.
Section 1.12…continued
ORGAN
1.12…continued
What
is an Organ System?
1.12…continued
What
is an Organ System?
Groups
of organs that have related
functions
EX:
THE CIRCULATORY SYSTEM
1.12…continued
What
is an Organ System?
Groups
of organs that have related
functions
EX:
THE CIRCULATORY SYSTEM
heart
1.12…continued
What
is an Organ System?
Groups
of organs that have related
functions
EX:
THE CIRCULATORY SYSTEM
heart, arteries,
1.12…continued
What
is an Organ System?
Groups
of organs that have related
functions
EX:
THE CIRCULATORY SYSTEM
heart, arteries, capillaries,
1.12…continued
What
is an Organ System?
Groups
of organs that have related
functions
EX:
THE CIRCULATORY SYSTEM
heart, arteries, capillaries, veins
1.12…continued
What
is an Organ System?
Groups
of organs that have related
functions
EX:
THE CIRCULATORY SYSTEM
heart, arteries, capillaries, veins, all 4 tissues
1.12…
Integumentary System
Lymphatic System
Immune System
Muscular System
Reproductive System
Skeletal System
These will not be on the quiz
They will be covered Thursday so make sure
you come to class with your chart
Section 1.13 Unicellular Organism
Bacteria
Protists
Plantlike
Protists
Animallike Protists
Fungus
1.13…continued
Bacteria: one-celled organisms
different from animal/plant
cells
because they do not have: mitochondria
/ nucleus / ribosomes
they have: pili, flagellum, chromosomes,
capsule, cell wall, cell membrane and
capsule
Most plentiful organism in the world
(there are bacteria in every Earth environment)
Some can make their own food
Protists: one-celled organisms
-found anywhere where there is water/moist
-unlike Bacteria, they have nucleus, mitochondria,
ribosomes, lysosomes
-Some are like animal and others are like plant cells
Plantlike
Protists
Diatoms:
Euglena
Animal-like
Amoeba
Protists
Paramecium
Diatoms
Plantlike Protists
Found in fresh and Salt water
Have Chlorophyll which helps them
make their own
food
Encased in 2 thin shells joined together
Shape is very Symmetrical (see picture on pg 35)
Euglena
Like
plant cell : have Chlorophyll which helps them
make their own food
Is like animal cell: can feed upon smaller cells
Has contractual Vacuole - pump out excess water
Animal-like Protists
Amoeba:
 Cannot make its own food, thus must feed on living/non-living
things
 Has contractual Vacuole - pump out excess water
 Moves using a false foot (pseudopod) by stretching out the
cytoplasm
 As it moves, it changes shape and looks like a blob
 The amoeba’s crawling motion is used for feeding
Paramecium:
 Cannot make its own food thus must feed on living/non-living
things
 Has contractual Vacuole - pump out excess water
 Moves with the help of Cilia
 Cilia also help bring food in the oral groove
Fungi
Include
uni-cellular and many multi-cellular
organisms
Muli-cellular: bread
Uni-cellular: yeast
Yeast:
mould, mushrooms
Unicelluar fungus that are like animal cells
They must find food & feed on other organisms
There are many different species of yeast