Cell Organelles Chapter 6. Slide 2 of 28 Nucleus 1.2.3. 4. 5. 6.
Organelles HOW does the nucleus control the cell? What is the role of the pores?
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Transcript of Organelles HOW does the nucleus control the cell? What is the role of the pores?
Organelles•HOW does the
nucleus control the cell?•What is the role of
the pores?
Organelles
www.mol.biol.ethz.ch
•HOW are proteins made at the ribosome?
• If proteins are made at a ribosome, WHY have a Rough ER?
Organelles• If you have a
Rough ER, WHY do you need one of these things?
•What is the difference between a lysosome, and a vesicle? A vacuole?•Vesicles are TRANSPORT•Vacuoles are STORAGE•Lysosomes are ‘digestive’
•VACUOLE•LARGE vacuole for storage (water and/or nutrient) and structure• Plants and some single-celled animals
•SMALL for nutrient storage…. Animals•They can have many
What is being shown/made here?
Which is a secretory vesicle?
Organelles•HOW is this the
“powerhouse” of the cell?• Inheritance?
Organelles•HOW does this
‘make sugar’?• Inheritance?•MOSTLY maternal
Cytoskeleton
•Role of:microtubulemicrofilamentintermediate filament
Cytoskeleton
• Evolution of muscles?
MicrofilamentSAME protein as muscle fibers
Phospholipid Bilayer/Cell Membrane•HOW does this regulate
what comes in to and goes out of the cell?•HYDROPHOBIC • “water fearing”•HYDROPHYLIC• “water loving”
Phospholipid Bilayer/Cell Membrane
Phospholipid Bilayer/Cell Membrane•Could this be reversed?
WHY?• Fluid Mosaic – the
membrane is about the consistency of vegetable oil at room temp• Stays together, but not
rigid like a cell wall• Steroids present to keep
from freezing
Phospholipid Bilayer/Cell Membrane•What is the
role of the proteins in the membrane?•Carbohydrate
chains?
Phospholipid Bilayer/Cell Membrane
Questions?
•Objective 13• Finish for Homework