Biology A Week

Agenda Books Books Vocab time Vocab time Cell History and Prokaryotes vs Eukaryotes Cell History and Prokaryotes vs Eukaryotes T-Chart T-Chart Exit Slip Exit Slip

Introduction to Cell Theory History of Scientists: Mathais Schleiden concluded that plants are composed of cells 1838: 1839: Theodore Schwann concluded that animals are composed of cells 1674: Anton Von Leeuwenhoek perfects techniques for grinding microscope lens to make the first microscope 1655: Robert Hooke coins the term "cell" to describe chambers in cork

Cell Theory Those early scientists did experiments on living things and developed CELL THEORY Main Ideas of Cell Theory All living things are made of one or more cells 1) Cells are the basic units of structure & function of living things 2) All cells come from existing cells 3)

Two Basic Cell Types 1) Prokaryotes “BACTERIA” Simplest and oldest form of life Lacks internal compartments. No true nucleus. Most are single-celled (unicellular) organisms.

Prokaryote

2) Eukaryote More complex cells Have several internal structures (organelles). True nucleus. Either unicellular or multicellular. u unicellular example: yeast m multicellular examples: plants and animals

Eukaryote

Exit Slip Name three differences between Prokaryotic and Eukaryotic cells. Name three differences between Prokaryotic and Eukaryotic cells.

Biology A Week

Agenda Cell video Cell video Organelles Organelles Cell Models Cell Models Exit Slip Exit Slip

Organelles Organelle Plasma membrane Cell wall Nucleus Ribosome Cytoplasm Rough Endoplasmic Reticulum (RER) Golgi apparatus (golgi body) Vacuole Lysosome Chloroplast Mitochondria Centriole DNA (Chromatin)

Groups Per. 2 1 – Nucleus 1 – Nucleus 2 – Mitochondria 2 – Mitochondria 3 – Ribosome, Vacuole 3 – Ribosome, Vacuole 4 – Golgi apparatus 4 – Golgi apparatus 5 – Lysozome 5 – Lysozome 6 – Rough E.R. 6 – Rough E.R. 7 – Chloroplast 7 – Chloroplast 8 – Cell Wall, DNA 8 – Cell Wall, DNA 9 – Plasma Membrane 9 – Plasma Membrane 10 - Cytoplasm, Centriole 10 - Cytoplasm, Centriole

Groups Per. 5 1 – Nucleus, Centriole 1 – Nucleus, Centriole 2 – Mitochondria, DNA 2 – Mitochondria, DNA 3 – Ribosome, Vacuole 3 – Ribosome, Vacuole 4 – Golgi apparatus, Oganelle 4 – Golgi apparatus, Oganelle 5 – Lysozome, Plasma Membrane 5 – Lysozome, Plasma Membrane 6 – Rough E.R., Cell Wall 6 – Rough E.R., Cell Wall 7 – Chloroplast, Cytoplasm 7 – Chloroplast, Cytoplasm

Inside the Animal Cell Disc 1 Disc 1 Label: Cytoplasm, cell membrane, centriole Label: Cytoplasm, cell membrane, centriole Color Color Disc 2 Disc 2 Label: lysosome, cytoplasm, ribosome, RER, DNA, nucleus, cell membrane, mitochondria, Golgi body, vacuole Label: lysosome, cytoplasm, ribosome, RER, DNA, nucleus, cell membrane, mitochondria, Golgi body, vacuole Color Color Disc 3 Disc 3 Write the function next to the structures labeled above Write the function next to the structures labeled above Color Color

Biology A Week

Bio Warm-up 10/11 The plasma membrane is semi-permeable, meaning it keeps some things out while allowing other things in. The plasma membrane is semi-permeable, meaning it keeps some things out while allowing other things in. Make a list of other semi-permeable things. (example: strainer) Make a list of other semi-permeable things. (example: strainer)

Semi-permeable Strainer Strainer Screen Door (Door) Screen Door (Door) Window (Screen) Window (Screen) Fishing Net Fishing Net Cheese Cloth Cheese Cloth

Homeo- “equal” Statis- "to stand" "to stand equally“ regulate internal environment so as to maintain a stable, constant condition Maintaining balance Dynamic equilibrium

Cells must keep the proper concentration of nutrients and water and eliminate wastes. The plasma membrane is selectively permeable – it allows some things to pass through, while blocking other things.

Equilibrium Balanced No gradient Can be dynamic

Concentration gradient What is concentration? How much of something is in there. What is a gradient? The measurement of how the concentration of something changes from one place to another.

No Gradient Low to High Gradient

Warm-Up What is the organelle that has been colored orange, what is its function in the cell?

Inside the Animal Cell Disc 1 Disc 1 Label: Cytoplasm, cell membrane, centriole Label: Cytoplasm, cell membrane, centriole Color Color Disc 2 Disc 2 Label: lysosome, cytoplasm, ribosome, RER, DNA, nucleus, cell membrane, mitochondria, Golgi body, vacuole Label: lysosome, cytoplasm, ribosome, RER, DNA, nucleus, cell membrane, mitochondria, Golgi body, vacuole Color Color Disc 3 Disc 3 Write the function next to the structures labeled above Write the function next to the structures labeled above Color Color

Inside the Plant Cell Disc 1 Disc 1 Label: Chloroplast, Central Vacuole, Cell Wall Label: Chloroplast, Central Vacuole, Cell Wall Write the function next to the structure Write the function next to the structure Color Color Disc 2 Disc 2 Label: lysosome, cytoplasm, ribosome, RER, DNA, nucleus, cell membrane, mitochondria, Golgi body, chloroplast, vacuole, cell wall Label: lysosome, cytoplasm, ribosome, RER, DNA, nucleus, cell membrane, mitochondria, Golgi body, chloroplast, vacuole, cell wall Color Color Disc 3 Disc 3 Write the function next to the structures labeled above Write the function next to the structures labeled above Color Color