Cells /30 ET: Glue in your ch. 7 learning targets and complete the before unit assessment of what you already know Learning Targets: Today I will … 1.Explain the difference between prokaryotes and eukaryotes 2.Distinguish the key differences between plant and animal cells

POGIL – Prokaryotic and Eukaryotic Cells With your group members select a POGIL role and place that card on your desk Remember your RED YELLOW GREEN cards and make sure the spokes person has them

7.1/7.2 – Cells Review + Organelles LT: By the end of today I will… – List the levels of cell organization from smallest to largest – Describe the functions of cell organelles – Identify cell organelles ET: Without using your book or notes, identify the cells below as either a prokaryote or a eukaryote…how do you know? AB

Cells: The basic unit of life Prokaryotes Smaller than Eukaryotes Have membranes and cytoplasm Do have DNA – free floating NO NUCLEUS Ex. Bacteria – E. coli Eukaryotes Do have a nucleus Have cell membranes and cytoplasm Do have DNA Dozens of specialized structures called organelles

The Cell Theory All living things are composed of cellsAll living things are composed of cells Cells are the basic units of structure and function in living thingsCells are the basic units of structure and function in living things New cells are produced from existing cellsNew cells are produced from existing cells

Cells maintain the structure and carry out the functions of your body!

Cell Reproduction (mitosis)

Levels of Organization (A nested Hierarchy)

Biology – 12/3/2015 LT: Today I will … – Identify organelles of eukaryotic cells – State the function of organelles in eukaryotic cells ET: 1.What are the two main types of eukaryotic cells? 2.Name one difference between the two (POGIL) CLUE

Organelles = Organs of a cell 1.Nucleus 2.Ribosome 3.Endoplasmic Reticulum 4.Golgi apparatus 5.Chloroplast 6.Mitochondria 7.Cell membrane 8.lysosome You group will be assigned an organelle to create a SEE poster State the name of the organelle Explain what the organelle does for the cell Example of where it is located & an analogy for the organelles function

SEE Organelle Poster State the name of the organelle Explain what the organelle does for the cell Example of where it is located & an analogy for the organelles function *Each person will be presenting the poster to a small group and you will be evaluating your peer presentations as well as taking notes on the organelles

Partner Practice 1.Quiz the person sitting across from 2.State the name of an organelle and have them repeat the function 3.Give hints if your partner needs them and be sure to re-quiz them on organelles they struggle with 4.Get through at least 3

Exit Ticket – You will need a ½ sheet of paper with your name on it List 3 organelles that you learned about today (one of them can be your own) State the organelles functions

Biology 12/04/ Organelles LT: Today I will… – Identify the structures of the cell membrane pg. 204 Lipid Bilayer: 1.Phospholipid 2.Hydrophilic 3.hydrophobic Transport proteins ET: Draw and label a phospholipid – Define hydrophobic and hydrophilic

The Nucleus Stores the DNA Runs the functions of the cell

Organelles that Store, Clean up, and Support Vacuoles and Vesicles – Store and move nutrients Lysosomes – Clean up crew Cytoskeleton – Support the shape and movement of the cell

Cytoskeleton Helps the cell maintain shape and allows the cell to move around Microtubules: Protein tubes that maintain the cells shape and act as tracks for organelles to move on Microfilaments: fibers for movement and support

Vacuoles & Vesicles Storage: water, salts, proteins, and carbohydrates Smaller vacuoles are often called vesicles

Organelles that build proteins Ribosomes: The site of protein construction Endoplasmic Reticulum: Where proteins and membrane lipids are made Golgi Apparatus: Shipping department

Ribosomes: Where Proteins are Made! Ribosomes can be found on the rough e.r. and floating freely in the cytoplasm

Endoplasmic Reticulum Rough: Components of the membrane are assembles and proteins are modified Ex. Membrane proteins Smooth: not covered in ribosomes and performs specialized tasks such as synthesis of lipids (cell membrane)

Golgi Apparatus: Proteins from the Rough E.R. move here Attaches carbs. and lipids to the protein then sends it on it’s way to where it is going

Organelles that Capture and Release Energy Chloroplast: Plant cells Mitochondria: Animal and Plant Cells

Chloroplasts: use energy from sunlight to make glucose (photosynthesis)

Mitochondria: Use energy from food to make energy for the cell (ATP)

Cellular Boundaries Cell wall – Plants Plasma membrane – Plants, Animals, Bacteria

The Cell Wall: Plant Cells Only Provides support and protection for the cell

Plasma Membrane Made of a phospholipid bi-layer (2) Semi-permeable

Cell Practice Game! animal-cell-needs-labelling-quiz animal-cell-needs-labelling-quiz

The Plasma Membrane (cell membrane) LT: Today I will… – Identify the structures of the cell membrane Lipid Bilayer: 1.Phospholipid 2.Hydrophilic 3.hydrophobic Transport proteins – Differentiate between the different modes of membrane transport Diffusion: passive vs. facilitated Osmosis Active transport ET: Pick up a membrane transport packet and complete the first page – 5 min.

The Phospholipid Bi-layer (2 layers) Let’s build it!!!!!!!!! (2 layers)

Membrane Proteins Let’s build them!!! Protein channels used to move things in and out of the cell that are too large to diffuse across the membrane or are moving against a concentration gradient

Membrane Transport Active Transport (requires ATP energy) – Protein pumps – Endocytosis – Exocytosis Passive Transport (no energy required) – Simple diffusion – Facilitated diffusion

Diffusion: movement of molecules down a concentration gradient? WHATS THAT? – Osmosis: diffusion of water – Facilitated diffusion: diffusion using a protein Active transport: uses a protein and requires ATP for energy

Surface area to volume ratios Today you need your Ch. 7 study guide packet and your membrane transport packet LT: Today I will… – Explain diffusion – Predict the movement of water molecules across a membrane in Osmosis – Explain why large animals require trillions of cells vs. a single celled bacteria ET: When considering membrane transport, why do you think larger animals require trillions of cells? In other words, why cant we be just one big cell?

Osmosis – Diffusion of Water

Surface Area VS. Volume Lets take a look at this packet!

Surface Area VS. Volume Single celled/smaller organisms have a really large outer-surface area compared to their volume Multicellular organisms don’t, so they need lots of cells to create the amount of surface area needed for the amount of membrane transport required to keep them alive. – Ex. Our lungs need a lot of gas exchange to happen across the cell membrane very quickly so we can get the oxygen we need

Facilitated Diffusion

Active Transport

Summary of Transport

7.4 Homeostasis and Cells LT: Today I will… – Explain homeostasis – Explain specialization of cells and provide examples – Explain how specialization of cells allows us to maintain homeostasis ET: Define homeostasis

Homeostasis – Maintaining a stable internal environment physically and chemically How do you do it? Your cells are specialized for particular tasks and communicate with one another to maintain homeostasis

Cell Specialization/Differentiation Cells, Tissues, Organs, Systems, Organisms

LT: Identify the cell structures and explain their functions ET:In at least 3 complete sentences, explain how the cell is like a factory.

Note Cards On one side create a colored picture and the name. On the reverse side write the function and facts – Cell Wall – Nucleus – Cytoskeleton – Ribosomes – Rough and Smooth Endoplasmic Reticulum – Golgi Apparatus – Lysosome/Vesicle – Vacuoles – Chloroplasts – Mitochondria – Plasma Membrane