Transcript Cells - hdueck

Chapter 7 “A View of the Cell”
p. 170 – 193
campus.queens.edu/faculty/jannr/cells/index.htm
www.ndpteachers.org/perit/biology_image_galle...
www.emc.maricopa.edu/.../BioBookAnimalTS.html types of organ tissue cells
www.answers.com/topic/cell-organization
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COMMON CELL TRAITS
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A cell is the
smallest unit that is
capable of
performing life
functions.
COMPARING CELLS
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The size & shape of
a cell relates to its
function. (job it does)
Prokaryotic Cells
(proh KAYR ee yah tihk)

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cells without membranebound structures
EX: bacteria
pond scum
Eukaryotic Cells
(yew KAYR ee yah tihk)
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cells with
membrane-bound
structures
EX: animals, plants,
fungi and protists
CELL WALL
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protects the cell
gives shape
is made of cellulose
A cell wall is found in plants, algae, fungi,
& most bacteria.
PLASMA MEMBRANE
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Outer covering, protective
layer around ALL cells
For cells with cell walls,the
cell membrane is inside the
cell wall
Allows food, oxygen, &
water into the cell & waste
products out of the cell.
CYTOPLASM

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gelatin-like inside cell membrane
constantly flows
aka protoplasm
CYTOSKELETON
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scaffolding-like
structure in cytoplasm
helps the cell maintain
or change its shape
made of protein
NUCLEUS
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Directs all cell
activities
Contains instructions
for everything the cell
does
These instructions are
found on a hereditary
material called DNA
Usually the largest
organelle
NUCLEAR MEMBRANE
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separates nucleus from
cytoplasm
controls movement of
materials in & out of
nucleus
NUCLEOLUS
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Aka “little nucleus”
Found in the nucleus
Ribosomes made
here
CHROMATIN


contains genetic code that controls cell
made of DNA & proteins (deoxyribonucleic acid)
Cell Structure
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CHLOROPLASTS
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Green organelles that
make food
found only in plant cells
CHLOROPHYLL
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A green pigment that
gives leaves & stems
their color
Captures sunlight
energy that is used to
produce food called
glucose
Glucose is a type of
sugar
MITOCHONDRIA
Organelles that release energy from food
 This energy is released by breaking down food
into carbon dioxide
 AKA the powerhouse b/c they release energy
from food
 Some muscle cells
have 20,000 mitochondria

RIBOSOMES
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Make proteins
Float freely or
attached to the
endoplasmic
reticulum (ER)
Ribosomes are
made in the
nucleolus
ENDOPLASMIC RETICULUM
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A series of folded
membranes that move
materials (proteins)
around in a cell
like a conveyor belt
Smooth ER –
ribosomes not attached
to ER
Rough ER – ribosomes
attached to ER
GOLGI BODIES (GAWL jee)
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Stacked flattened
membranes
Sort and package
proteins
VACUOLES
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Temporary storage
spaces
Store food, water,
waste
LYSOSOMES (LI suh sohmz)
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The word "lysosome" is Latin for "kill
body."
The purpose of the lysosome is to
digest things. They might be used to
digest food or break down the cell
when it dies.
Break down food molecules, cell
wastes & worn out cell parts
FROM CELL TO ORGANISM
Cell
The basic unit of life
Tissue
Group of cells working together
Organ
Group of tissues working together
Organ System
Group of organs working together
Organism
Any living thing made of 1 or more cells
NAME THE ORGANELLE
a. Nucleus
c. Golgi body
b. Chloroplast
d. Mitochondria
1- Nucleus
2- Chromosomes
3- Mitochondria
4- Ribosomes
5- Chloroplasts
6- Vacuoles
7- ER
8- Cell
Membrane
Scientific Drawings
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Line drawings
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smooth continuous
lines (simple)
No shading
Left of center
Labels on right
Ruler lines
 Print
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Micro or macro
Liver Cell (1000x)
http://awbionotes.files.wordpress.com/2012/07/2-3-1.png
Cottonwood Poplar Leaf (text p 560)
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Title
Scale or
magnification
Cottonwood Leaf(Actual size)
http://cnx.org/content/m47405/latest/Figure_30_04_01.jpg
Field of View (p 1098)
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Micrometer slide
Ruler
http://i01.i.aliimg.com/wsphoto/v0/1212502279/0-1mm-Stage-micrometer-microscope-slidefont-b-calibration-b-font-object-micro-fine-font-b.jpg
Magnification (p1098)
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Eyepiece x objective lens
40x
 100x
 400x
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http://www.mr-damon.com/experiments/1ib_bio/micrometer_scope_slide3.jpg
Wet Mount