Presentation on theme: "Cell Organelles Mr. Nichols PHHS"— Presentation transcript:
1Cell Organelles Mr. Nichols PHHS 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 what’s coming next! It helps to print the outline and notes to have with you while presenting so that there are no surprises. –JessB.org
8Cytoskeleton Acts as skeleton and muscle Provides shape and structure Helps move organelles around the cellMade of three types of filamentsActin, 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.
9Endoplasmic Reticulum A.k.a. “ER”Connected to nuclear membraneHighway of the cellRough ER: studded with ribosomes; it makes proteinsSmooth ER: no ribosomes; it makes lipidsIt’s not necessary that the students can read the labels here; just point out the black dots are ribosomes.
10Ribosome Site of protein synthesis Found attached to rough ER or floating free in cytosolProduced in a part of the nucleus called the nucleolusA polypeptide is a chain of amino acids. In this diagram, you can see the ribosome is making a polypeptide, also known as a protein.
11Golgi Apparatus Looks like a stack of plates Stores, modifies and packages proteinsMolecules transported to and from the Golgi by means of vesiclesAKA Golgi Complex. It is not necessary that the students read the labels, this diagram gives them a general idea of the Golgi’s shape.
12Which organelles do lysosomes work with? Garbage disposal of the cellContain digestive enzymes that break down wastesStudents should recognize the shapes of the Golgi and ER even if they cannot read the captions.Which organelles do lysosomes work with?
13Mitochondria “Powerhouse of the cell” Cellular respiration occurs here to release energy for the cell to useBound by a double membraneHas its own strand of DNAExplain that this diagram shows the mitochondria cut open to reveal the internal membranes.
14What type of microscope may have been used to take this picture? VacuolesLarge central vacuole usually in plant cellsMany smaller vacuoles in animal cellsStorage container for water, food, enzymes, wastes, pigments, etc.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.What type of microscope may have been used to take this picture?
15Make 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.
16It’s a metaphor…Create, draw and color a metaphor for the cell and all of the parts we went over (cannot use my city example).
28-How can you rewrite this conclusion to make it better? 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?
41BREAKING 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?
47Cell Organelles Organelle= “little organ” Eukaryotic cells vs. ProkaryoticThe liquid component of the cytoplasm is called cytosolThe stuff in between organelles is called cytoplasmYou 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.”
48Cell Membrane Boundary of the cell Made of a phospholipid bilayer Emphasize word parts here:phospho= phosphate head; lipid= fatty acid tailbi= 2
49Nucleus Control center of the cell Contains DNA Surrounded by a double membraneUsually the easiest organelle to see under a microscopeUsually one per cellCells 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.
50Contents of the Safe! 1.) A white mask (pictured on the next slide.) 2.) The minister’s wallet and phone.3.) A packet of x-rays4.) A very small journal.
53Journal 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 Kathleen……I killed Luke…I 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….