Monday Agenda Think back to the beginning of the year. What are the 8 characteristics of living things? How do they relate to cells? 1.Lab Overview 2.Week Outline 3.Organelle Lecture Hw: Study for Quiz
Agenda Monday: Organelle Lecture Tuesday: No Class Wednesday: Quiz Thursday: Finish organelles and Cell Activity Friday: Winter Break Cell-ebration (movie)
LE 4-3b Prokaryotic flagella Ribosomes Cell wall Plasma membrane Nucleoid region (DNA) Pili Prokaryotic cell DNA not bound by a membrane Cytoplasm
Prokaryotic Cell Basic cell type Does not contain membrane-bound organelles Bacteria and archaebacteria
Eukaryotic cell
Manufacturing Nucleus – makes DNA & RNA
Manufacturing Nucleus – makes DNA & RNA Ribosomes – make proteins
Manufacturing Nucleus – makes DNA & RNA Ribosomes – make proteins Rough ER – make membrane lipids & proteins
Manufacturing Nucleus – makes DNA & RNA Ribosomes – make proteins Rough ER – make membrane lipids & proteins Smooth ER – make lipids
Manufacturing Nucleus – makes DNA & RNA Ribosomes – make proteins Rough ER – make membrane lipids & proteins Smooth ER – make lipids Golgi Apparatus – stores, modifies & transports proteins; makes lysosomes
Analogies? Nucleus Ribosome Rough ER Smooth ER Golgi Apparatus
Stop and talk Which of the following organelles does not belong in the list: a.Nucleus b. Rough ER c. Ribosome d. Golgi Apparatus
Stop and talk Contrast the form and functions of smooth ER and rough ER
Breakdown Lysosomes (in animals, some protists)– digests ingested food & old organelles
Breakdown Lysosomes (in animals, some protists)– digests ingested food & old organelles Vacuoles– digestion, stores chemicals, maintains water balance
Analogies? Lysosome Vacuole Easier to see in plants
Stop and Talk How is a lysosome like a recycling center?
Support, Movement, & Communication Cytoskeleton Maintains cell shape Anchors organelles Moves organelles Moves cells Transmits cell signals (between cells)
Microtubule Intermediate filament Microfilament Cytoskeleton Support, Movement, & Communication
Cytoskeleton Cell wall -- Maintains cell shape Provides skeletal type support Surface protection
Plants Only Cell Wall Large Central Vacuole
Energy Mitochondria – convert chemical energy of food to chemical energy of the cell (ATP)
Analogies? Mitochondrion
Energy Mitochondria – convert chemical energy of food (sugar) into chemical energy of the cell (ATP) Chloroplast (only plants, some protists) – converts light energy into sugar
Analogies? Mitochondrion Chloroplast
LE 4-4a Rough endoplasmic reticulum Smooth endoplasmic reticulum Nucleus Flagellum Lycosome Centriole Peroxisome Microtubule Intermediate filament Microfilament Cytoskeleton Golgi apparatus Ribosomes Plasma membrane Mitochondrion Eukaryotic animal cell Not in most plant cells
Eukaryotic plant cell LE 4-4b Not in animal cells Golgi apparatus Nucleus Central vacuole Chloroplast Cell wall Mitochondrion Peroxisome Plasma membrane Rough endoplasmic reticulum Smooth endoplasmic reticulum Ribosomes Microtubule Intermediate filament Microfilament Cytoskeleton