Cell Organelles

Cell OrganellesMr. Nichols PHHS

Cartoons of the Day!

CytoskeletonActs as skeleton and muscleProvides shape and structureHelps move organelles around the cellMade of three types of filaments

Endoplasmic ReticulumA.k.a. ERConnected to nuclear membraneHighway of the cellRough ER: studded with ribosomes; it makes proteinsSmooth ER: no ribosomes; it makes lipids

RibosomeSite of protein synthesisFound attached to rough ER or floating free in cytosolProduced in a part of the nucleus called the nucleolus

Golgi ApparatusLooks like a stack of platesStores, modifies and packages proteinsMolecules transported to and from the Golgi by means of vesicles

LysosomesGarbage disposal of the cellContain digestive enzymes that break down wastes

Which organelles do lysosomes work with?

MitochondriaPowerhouse of the cellCellular respiration occurs here to release energy for the cell to useBound by a double membraneHas its own strand of DNA

VacuolesLarge central vacuole usually in plant cellsMany smaller vacuoles in animal cellsStorage container for water, food, enzymes, wastes, pigments, etc.What type of microscope may have been used to take this picture?

Make it personalRank the 5 organelles, (1 being the most) that you think are the MOST important to the cell. Share your rankings with your group mates, be sure to defend any differences that arise.

Its a metaphorCreate, draw and color a metaphor for the cell and all of the parts we went over (cannot use my city example).

Cartoon of the Day 1

Question of the Day!1.) What do you think contributes more to someones personality, their cells or their experiences?

Question of the Day!My hypothesis was incorrect the nickel did not hold as many drops as I thought; the coin that held the most drops was the quarter. The quarter held on average 22 drops, while the others held less.

-How can you rewrite this conclusion to make it better?

BREAKING NEWS!!!!I received an anonymous letter yesterday afternoon from presumably the killer.

The handwriting is consistent with that of Jeff Miller. We have two questions to solve:1.) Where is the Miller family?2.) What does the killer want from us?

Cell OrganellesOrganelle= little organEukaryotic cells vs. ProkaryoticThe liquid component of the cytoplasm is called cytosolThe stuff in between organelles is called cytoplasm

Cell MembraneBoundary of the cellMade of a phospholipid bilayer

NucleusControl center of the cellContains DNASurrounded by a double membraneUsually the easiest organelle to see under a microscopeUsually one per cell

Contents of the Safe!1.) A white mask (pictured on the next slide.)2.) The ministers wallet and phone.3.) A packet of x-rays4.) A very small journal.

White Mask in the Safe

X RaysThese x rays are that of Luke Brave

Journal EntryIn my life I have two regrets. The first that because of the web of lies and deceit that have cost this world two lives.

I killed KathleenI killed LukeI had no choice, the angel of death had instructed me to do I could not refuse.For this I must take myself from this world.Goodbye.

*Use this presentation in conjunction with the Cell Organelle note-taking worksheet. Run through the entire presentation before using it in class so that you know whats coming next! It helps to print the outline and notes to have with you while presenting so that there are no surprises. JessB.org

*Actin, also found in muscle cells, mainly help maintain cell shape in their cytoskeletal role. Microtubules mostly move organelles around the cell. Intermediate filaments also provide structural support.*Its not necessary that the students can read the labels here; just point out the black dots are ribosomes.*A polypeptide is a chain of amino acids. In this diagram, you can see the ribosome is making a polypeptide, also known as a protein.*AKA Golgi Complex. It is not necessary that the students read the labels, this diagram gives them a general idea of the Golgis shape.*Students should recognize the shapes of the Golgi and ER even if they cannot read the captions.*Explain that this diagram shows the mitochondria cut open to reveal the internal membranes.*The image is 2D, so it must have been a light microscope or TEM. If the cell is very tiny, then a TEM was used. Otherwise, a strong light microscope could have captured this image.*You may or may not wish to distinguish between cytosol and cytoplasm. The correct use of each term is shown here. Most high school textbooks, however, use the word cytoplasm to mean cytosol.*Emphasize word parts here:phospho= phosphate head; lipid= fatty acid tailbi= 2*Cells with more than one nucleus include muscle cells and liver cells, largely because of the massive volume of cytoplasm and number of organelles that need controlling.

Cell Organelles

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