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.

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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