monday agenda think back to the beginning of the year. what are the 8 characteristics of living...
TRANSCRIPT
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
Prokaryoticflagella
Ribosomes
Cell wall
Plasmamembrane
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
Intermediatefilament
Microfilament
Cytoskeleton
Support, Movement, & Communication
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
Roughendoplasmicreticulum
Smoothendoplasmicreticulum
Nucleus
Flagellum
Lycosome
Centriole
Peroxisome
Microtubule
Intermediatefilament
Microfilament
Cytoskeleton
Golgiapparatus
Ribosomes
Plasma membrane
Mitochondrion
Eukaryotic animal cell
Not in mostplant cells
Eukaryotic plant cell
LE 4-4b
Not inanimalcells
Golgiapparatus
Nucleus
Centralvacuole
Chloroplast
Cell wall
Mitochondrion
Peroxisome
Plasma membrane
Rough endoplasmicreticulum
Smooth endoplasmicreticulum
Ribosomes
Microtubule
Intermediatefilament
Microfilament
Cytoskeleton