Download Cell Organelle Notes

Cell Organelle Notes
Cytoskeleton
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Organizes ____________________
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Motility (inside & outside)
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Cytoskeleton interacting with ______________________________________
Transfer mechanical force into cells
Cytoskeleton Structure
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Microtubules
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Largest of all cytoskeleton structures
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Hollow tubes made of
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Act as tracks for
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Guide chromosomes during cell division
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Intermediate
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Made up of various fibrous proteins that supercoil
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Reinforce
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Anchor organelles and
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Permanent
Microfilaments
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Smallest of cytoskeleton
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Made of _________________
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Twisted, ___________________
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Can be __________________________
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Forms 3D network to support cell shape
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Maintain tension (pulling force)
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With myosin, produce
Cilia & Flagella
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Flagellum
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Cilia
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Some may act as antenna
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• All vertebrate animal cells have primary cilia
• Used in embryonic
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Learning more about it
Mechanism
– 9 microtubules attached to basal body
– Same structure as centrioles (later…)
– Use dyneins to cause the cilia/flagella to ________________
Organelles Learning Check:
Using the information from your notes, fill the following table out.
Function
Name of organelle/structure
Site of Protein Synthesis. Protein
“factory”.
Rough ER
Function
Name of organelle/structure
Site of rRNA production.
Double-membrane. Separates cell
from the outside environment.
Nuclear Pores
Lysosome
Neutralizes hydrogen peroxide.
Long microtubule, responsible for
movement.
Cell Wall
Site of cellular respiration
Chloroplast
Gel-like substance found in nucleus
Threadlike strands found in nondividing nucleus
Nuclear membrane
Sac-like structure, stores water and
other substances.
Golgi Apparatus
Cytoplasm
Chromosome
Gel-like substance, carries organelles
Made of microtubules and
microfilaments, gives structure to the
cell
Cell Surface:
Plant Cells
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Only in Plant cells
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Channels through cell wall & ___________________
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Allows cytoplasm to “touch”
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Exchange small _______________________
Animal Cells
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Tight Junctions
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Bind membranes tightly
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Cells tightly pressed & linked knitted together by _________________
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Leakproof sheets
Anchoring junctions (Desmosomes)
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“Rivets” bind cells
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Strengthen cells against ________________________________
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Common in tissues that stretch
Gap Junctions
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Similar to _____________________
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Channels—permit exchange of ions & ________________________