cells and cell structures. quiz!!!!! 1.what are the three parts of the cell theory? 2.what are three...
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Cells and Cell Structures
Quiz!!!!!1. What are the three parts of the cell theory?2. What are three similarities and 3 differences
between prokaryotic and eukaryotic cells?3. Why are prokaryotic cells NOT considered
eukaryotic when they have ribosomes?4. What are three organelles in a cell that have
DNA?5. Which of those organelles (from #4) are found
in your cells?
Organelles
•Nucleus•Ribosome• ERs•Golgi Apparatus•Mitochondrion•Chloroplast
OrganellesFunction and Location of:• Vesicles, Vacuoles, Lysosomes •Microfilaments, microtubules•Cell membrane, cell wall•What do they do and HOW do they do it?•What are they made of?
OrganellesFunction and Location, what do they do and how do they do it:• Vesicles, Vacuoles, Lysosomes •Microfilaments, microtubules•Cell membrane, cell wall
OrganellesFunction and Location, what do they do and how do they do it:• Vesicles
OrganellesFunction and Location, what do they do and how do they do it:• Vacuoles – found in plant and some animal cells•Help regulate water content• In plants they contain “cell sap” – water, salts, ions,
sugars, oxygen, CO2, wastes, etc.• In plants they can also contain pigments – flower and
fruit colors
OrganellesCytoskeleton-•Microfilaments – small protein filaments made of
actin (also a muscle protein), structure and cell movement•Microtubules – small protein tubes (made of tubulin)•Determine cell shape, provide ‘tracks’ for cell
organelles and vesicle movement•Also used in nuclear division• Intermediate filaments- filaments
OrganellesCytoskeleton-•Microfilaments and Microtubules – are charged
(polar!) • Therefore unidirectional (things only move one way)• Intermediate filaments – made of many different
proteins, cell structure•Non-polar, so not used to move things
Cytoskeleton
OrganellesCytoskeleton-•Microfilaments, Microtubules, Intermediate filaments •Can form, break down and reform quickly•Changing cell ‘consistency’
OrganellesFunction and Location, what do they do and how do they do it:•Cell membrane, cell wall•Cell membrane – lipid bilayer – stops most things
moving in and out•Cell wall – in plants and some bacteria•Rigid, gives structure and support
Phospholipid Bilayer
OrganellesFunction and Location, what do they do and how do they do it:•Cell wall – in plants and some bacteria•Rigid, gives structure and support•Made of..?
Tomorrow •Work in class•Diagram Plant and Animal cell (NOT copy diagram
out of book)• Label the parts and provide their role/function in the
cell• 40 points EACH DIAGRAM as a LAB GRADE (good
grades on these will really help you!)• 28 points each for content, 12 for the quality.
•Review your notes!!!!!!!!!!!!!!!
Homework