TOUR OF THE CELL (CH.4 PART 3)

Golgi Apparatus (Post Office)

Processes, modifies, sorts, and ships products of the ER to other organelles or the cell surface

Lysosomes (Trash Men)

Houses enzymes that break down ingested substances like bacteria and damaged organelles

Vacuoles (Warehouse)

• Protista: contractile vacuoles, water pumps

• Plants: large central vacuoles, store molecules and waste, facilities growth

Peroxisomes (Trash Men)

Breakdown fatty acids for fuel in the liver, detoxifies harmful chemicals

Mitochondria (Power Plant)

• Carry out cellular respiration

• How the cells make energy, in nearly all eukaryotic cells

Cytoskeleton (Construction Crew)

• Structural maintenance of the cell

• Provides “roads for organelles”

• Movement

Microtubules (Highways)

• Movement, Chromosomes during cell division

• Main Component of Cilia & Flagella

• Tracks for movement, motor proteins

Centrioles

• Organizes Microtubules (cell division)

• Anchors Cilia & Flagella

Anchoring Junctions

Found where stretching is needed

Tight Junctions

Bind cells to form leakproof sheets

Gap Junctions

Ion and molecules pass through

Plant Cell Wall (City Wall)

Protects and provides skeletal support; keep the plant upright and is primarily composed of cellulose

Plasmodesmata

Allow plant tissues to share water, nourishment, and chemical messages