Identifying the components of a Compound Microscope Class Objective: Identify the major parts of a compound microscope Eyepiece Nosepiece Arm Objective lenses Stage clips Coarse focus Stage Fine focus Diaphragm Light Power switch Base

What are Cells? 9/29/11

Every living thing is made of cells! Class Objectives: Identify 3 components that ALL cells have Explain why cells are important to All living things Explain where the heck cells come from

Cell membrane (barrier) What makes a cell? 3 things ALL cells have: Cell membrane (barrier) DNA (genetic info) Cytoplasm (fluid) Class Objectives: Identify 3components that ALL cells have Explain why cells are important to All living things Explain where the heck cells come from

Sketch both cells in your notebook Sketch both cells in your notebook. Label which is eukaryotic and prokaryotic. Cell membrane DNA Prokaryote Cytoplasm Eukaryote (DNA floating in cytoplasm) (DNA inside the nucleus)

Important Ideas About Cells: (aka- the Cell Theory) 1. All living things are made of cells. Unicellular Organisms (one-celled) Multicellular Organisms (many cells) Class Objectives: Identify 3 components that ALL cells have Explain why cells are important to All living things Explain where the heck cells come from

Important Ideas About Cells: (aka- the Cell Theory) Cells give an organism its structure and function - they control everything the organism needs to do to stay alive Even the most complex organisms are made of a bunch of different types of cells working together. Class Objectives: Identify 3 components that ALL cells have Explain why cells are important to All living things Explain where the heck cells come from

Important Ideas About Cells: (aka- the Cell Theory) New cells come from pre-existing cells. A prokaryotic cell splits into two identical cells by the process of binary fission. A eukaryotic cell splits into two identical daughter cells by the process of mitosis. Class Objectives: Identify 3 components that ALL cells have Explain why cells are important to All living things Explain where the heck cells come from

Plant Cell Diagram: Lysosome Nucleus Golgi Apparatus Ribosome Chloroplast E.R. (rough) E.R. (smooth) Vacuole Mitochondrion Cell Wall Cytoplasm Cell Membrane Class Objectives: Identify the major organelles in a eukaryotic cell Explain the functions of the major organelles in a eukaryotic cell Make connections between the major organelles in a eukaryotic cell

Animal Cell Diagram Cytoskeleton Cell Membrane Golgi Apparatus Cytoplasm Nucleus Ribosome Mitochondrion Mitochondrion E.R. Lysosome Ribosomes Class Objectives: Identify the major organelles in a eukaryotic cell Explain the functions of the major organelles in a eukaryotic cell Make connections between the major organelles in a eukaryotic cell

A day in the life of a cell How Cells Make and Use Proteins

Put this in your notebook: Proteins – Large molecules that do many important jobs in living things, such as: Form body structures (muscle, bone, hair, eyes, nails, skin) Act as enzymes to speed up chemical reactions (like digestion) in our bodies Act as hormones that send signals through the bloodstream [And many other things we’ll learn about later!] Class Objectives: Describe 3 things that proteins do for the body

Proteins A Day in the Life of The Cell Proteins are large molecules that do many important jobs in living things, such as: Form body structures (muscle, bone, hair, nails, skin) Act as enzymes to speed up chemical reactions (like digestion) in our bodies Act as hormones that send signals through the bloodstream [And many other things we’ll learn about later!]

Cytoplasm RNA Nucleus E.R. ATP energy A Day in the Life of The Cell Released into blood stream and used as hormone Protein Ribosome RNA Golgi Apparatus (Modifies and shapes the protein) Protein being formed at Ribosome Nucleus Cytoplasm Protein could go to membrane to be released into blood stream DNA (Holds genetic information) RNA (Copies info from DNA and carries it to the Ribosome to make proteins) Or the protein could go to a lysosome to be a digestive enzyme Vesicle (“bubble” that transports proteins) (transports and packages proteins) E.R. Lysosome ::Blood Stream:: Cell Membrane Food or waste particle CO2 + H2O ATP energy (for the cell to use) Ribosomes Mitochondria Cell Respiration Glucose + O2