Jan. 9th, 2012 Warm Up Vocabulary Words: Collect Journal Collect Textbook (may be under chair) Turn to next empty page in journal Write down vocabulary words and definition Vocabulary Words: Cell membrane Chloroplast Vacuole Nucleus Cell Wall Cytoplasm Mitochondria
What is the difference between a plant cell and an animal cell? Explain Discussion: http://www.youtube.com/watch?v=-zafJKbMPA8&feature=related
Chapter 2 “Cells” Section 1: “Cell Structure Pages 38 – 40 LESSON 1
COMMON CELL TRAITS A cell is the smallest unit that is capable of performing life functions.
COMPARING CELLS The size & shape of a cell relates to its function. (job it does)
Prokaryotic Cells (proh KAYR ee yah tihk) cells without membrane-bound structures EX: bacteria pond scum
Eukaryotic Cells (yew KAYR ee yah tihk) cells with membrane-bound structures EX: animals, plants, fungi and protists
CELL WALL protects the cell gives shape is made of cellulose A cell wall is found in plants, algae, fungi, & most bacteria.
CELL MEMBRANE Outer covering, protective layer around ALL cells For cells with cell walls,the cell membrane is inside the cell wall Allows food, oxygen, & water into the cell & waste products out of the cell.
CYTOPLASM gelatin-like inside cell membrane constantly flows aka protoplasm
NUCLEUS Directs all cell activities Contains instructions for everything the cell does These instructions are found on a hereditary material called DNA Usually the largest organelle
CHLOROPLASTS Green organelles that make food found only in plant cells
CHLOROPHYLL A green pigment that gives leaves & stems their color Captures sunlight energy that is used to produce food called glucose Glucose is a type of sugar
MITOCHONDRIA Organelles that release energy from food This energy is released by breaking down food into carbon dioxide AKA the powerhouse b/c they release energy from food Some muscle cells have 20,000 mitochondria
VACUOLES Temporary storage spaces Store food, water, waste
NAME THE ORGANELLE a. Nucleus c. Cell Wall b. Chloroplast d. Mitochondria
How do Cell’s relate to Human Body Organelle Human Body Comparison Cell Membrane Nucleus Cytoplasm Vacuole Mitochondria protects but also allows some things to go in and out Skin Brain Controls all functions fluid that supports and protects Blood Bladder Holds liquid produces energy Enzymes
FROM CELL TO ORGANISM Tissue Group of cells working together Group of tissues working together Organ System Group of organs working together Organism Any living thing made of 1 or more cells
Color Code Cells Diagrams Cell Membrane Nucleus Cytoplasm Vacuole Mitochondria Cell wall Chloroplast
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