Cell Structures & Functions
Essential Question:
What are cells and why are they important to learn
about?
Controls cell activities
Your brain
Video: Cell Structures & Functions
https://www.youtube.com/watch?v=g4L_QO4WKtM
Organelle
nucleus
Functions
Controls cell activities
Contains DNA
Analogy
Your brain
Principal’s office @
MTHS
nucleus
nucleus
Organelle
Functions
chromatin/DNA Carries genetic
information for traits
passed from parents to
offspring.
Analogy
Blueprints for building.
Cookbook, instruction
manual
DNA
DNA
Organelle
Functions
cell membrane
Outer covering of cell,
controls what goes in and
out.
Cell membrane
Cell membrane
Analogy
Your skin
Organelle
cell wall
Functions
Thick outer wall of plant
cells. Provides protection
and support.
Cell wall
Cell membrane
Analogy
Brick wall,
Cereal box
Finish for HW!
winter
Organelle
cytoplasm
Functions
Analogy
Liquid part of cell outside Water in an aquarium,
Air in room, broth in
of nucleus. Chemical
reactions take place here soup
cytoplasm
cytoplasm
Organelle
Functions
ribosome
Makes proteins
ribosome
Analogy
factories
ribosome
Organelle
endoplasmic
reticulum
Functions
Pathways for transporting
proteins
Assembles, modifies
proteins and lipids
Analogy
Highways, roads
Assembly lines, auto
body shop.
Organelle
Golgi
apparatus
Functions
Modifies, sorts, &
packages proteins for
shipping out of cells
Analogy
post office, UPS, Fed Ex
Organelle
mitochondria
Functions
“Powerhouse of cell”,
where glucose is broken
down to get energy
Analogy
Power plant, electricity
generator
mitochondrion
mito
chondrion
Organelle
chloroplasts
Functions
Where photosynthesis
happens, where food is
made in plant cells.
Analogy
Kitchen, farm, cafeteria
Solar panels
chloroplast
Organelle
vacuoles
Functions
Analogy
Storage bubbles for food,
water, waste
vacuole
Closets, refrigerator,
warehouses
Organelle
lysosomes
Functions
Hold enzymes used to
break down cell parts to
build new cells.
Analogy
Recycling centers,
trash collectors
Organelle
cytoskeleton
Functions
Network of protein fibers
running throughout cell.
Provides internal support.
Analogy
Your skeleton,
framework for building
Video: Intro to Cells
What are cells and why are they important
to learn about?
http://www.youtube.com/watch?v=gFuEo2ccTPA
Q: What are cells and why are they
important to learn about?
• Building blocks of living things, what ALL living
things are made up of.
• Helps us better understand how living things
work.
• Helps us understand diseases & find cures.
medium
close to
coarse
break
fine
Questions?
DNA
nucleus
ribosomes
vacuole
cytoplasm
cytoskeleton
Golgi
apparatus
Endoplasmic
reticulum
Animal Cell
Cell membrane
mitochondrion
DNA
ribosomes
nucleus
vacuole
endoplasmic
reticulum
Golgi
apparatus
mitochondrion
cell wall
chloroplast
cell membrane
cytoplasm
Plant Cell
cytoskeleton
nucleus
Finish for HW: Due Monday! (30 pts)
pp. 174-183