Cell Organelles.

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Presentation transcript:

Cell Organelles

Cell Organelles

Endoplasmic Reticulum: Structure Network of membranous channels Rough ER - studded with ribosomes Smooth ER - no ribosomes

Ribosomes

Processes and sorts proteins to be secreted out of cell Rough ER: Function Processes and sorts proteins to be secreted out of cell Sends proteins in vesicles that pinch off from the membrane

Smooth ER: Structure No ribosomes attached

Golgi Apparatus

Makes lipids and carbos Detoxifies poisons Smooth ER: Function Makes lipids and carbos Detoxifies poisons Stores and releases Ca+2 ions Removes phosphate group from glucose so can leave cell

Golgi Apparatus (Bodies): Structure Flattened stack of membranes (not continuous)

Golgi Apparatus: Function Modifies, sorts, packages, and transports proteins from ER Forms transport vesicles Show Campbell Ch 07 Endomembrane System & Lysosome Formation

Show Lysosome Animation Lysosomes: Structure Are vesicles filled with digestive enzymes Show Lysosome Animation

Digest damaged or worn out organelles Lysosomes: Function Digest damaged or worn out organelles Digest entire cells 5-week old fetus

Figure 20.13 Human embryo at 1 month.

Lysosomes

Lysosomes: Function Digest pathogens and molecules

Peroxisomes: Structure Kidney epithelial cells Green = peroxisomes; Red = nucleus

Peroxisomes: Function Oxidize fatty acids and amino acids Neutralize toxic compounds made when oxidizing fatty acids and amino acids

Mitochondria: Structure

Mitochondria: Function

Nucleus: Structure Nuclear Envelope Chromatin Nucleolus Nucleoplasm Nuclear Pore

Nucleus: Chromatin DNA exists as strands of chromatin, except during cell division

Nucleus: Function

Figure 02.02tao

Cytoskeleton: Structure and Function

Microtubules

Microfilaments

Microfilaments

Microvilli

Microvilli: Structure and Function

Centrosome and Centrioles

Centrosomes/Centrioles

Centrosome

Centrosome

Centrioles

Cilia: Structure

Figure 02.02tal

Cilia: Function

Flagella: Structure

Figure 02.02tam

Flagella: Function Normal sperm at bottom and abnormal sperm at top

Ribosomes: Structure and Function

Cell Organelles Video

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