CELL ORGANELLES OBJECTIVES Colorado State Standard SC 09
CELL ORGANELLES
OBJECTIVES Colorado State Standard: SC 09 -GR. 7 -S. 2 -GLE. 3 Cells are the smallest unit of life that can function independently and perform all the necessary functions of life. ▪ Identify the organelles and their function in animal and plant cells. ▪ Compare the basic structures and functions of plant cells, animal cells, and single-celled organisms. ▪ Employ tools to gather, view, analyze, and report results for the scientific investigations of cells. ▪ Learn the parts of the microscope. ▪ Use a microscope affectively.
VOCABULARY Cell - a structure that contains all the material needed for life Cell membrane - a thin barrier at the outer edge of a cell that controls how substances pass into and out of the cell; protects the cell; traffic control Cytoplasm - jellylike, colorless material outside the cell nucleus in which the organelles are located Endoplasmic Reticulum - Moves materials within cells Golgi Apparatus - an organelle that modifies and packages proteins and other molecules so they can be stored in a cell or sent outside the cell; processes, packages and secretes proteins Lysosome - an organelle that contains digestive enzymes that breaks molecules down; Cleans up cell Mitochondrion (plural mitochondria) - an organelle that is the energy center or “powerhouse”; Turns food into useable energy; responsible for energy release Nucleus - “The Brain”; controls the cells activities; contains the chemical DNA Organelle - membrane bound structure within a cell that is responsible for specific jobs within that cell Ribosome - organelle that makes protein Vacuole - a saclike organelle that stores materials for a cell (waste, water, food)
HABITS OF THE MIND • Responding with Wonderment and Awe • Remaining Open to Continuous Learning
TITAN CREED Titans take ownership of and find joy in learning.
KEY QUESTIONS Compare the basic structures and functions of plant cells, animal cells, and single-celled organisms. What organelle is the energy powerhouse in an animal/plant cell?
EUKARYOTIC CELL (Animal) Video/Quiz: Cell Structures (Brain Pop)
COMPONENTS OF AN ANIMAL CELL (NON-ORGANELLE) � Cell Membrane – a protective layer that separates the cell from the outside environment; controls materials going in and out of the cell � Cytoplasm – fluid inside the cell
COMPONENTS OF AN ANIMAL CELL (NON-ORGANELLE) � Cytoskeleton – maintains cell’s shape; anchors organelles in place
ORGANELLES OF AN ANIMAL CELL Organelles – “little organs; ” structures that carry out various life processes; perform specific functions within the cell. �Nucleus – the command center; the nucleus is where DNA is stored; the brain of the cell
ORGANELLES OF AN ANIMAL CELL �Mighty Mitochondria - the "powerhouse" of the cell; generates energy
ORGANELLES OF AN ANIMAL CELL �Lysosomes – uses enzymes to breakdown nutrients Lysosome Animation (Mc. Graw Hill)
ORGANELLES OF AN ANIMAL CELL �Vacuole – storage (usually food or water) �Animal – comparatively smaller in size, but many in number �Plant – one large central vacuole �Note: Increase in size of vacuole = Increase in size of cell
ORGANELLES OF AN ANIMAL CELL �Endoplasmic Reticulum – transportation of proteins �Ribosomes – makes protein
ORGANELLES OF AN ANIMAL CELL �Golgi Apparatus (bodies) - modifying and packaging of proteins
PLANT CELL Image acquired from http: //rmascience. weebly. com/cells. html
ORGANELLES - PLANT �Chloroplasts ▪ Organelles that convert sunlight to energy (photosynthesis) ▪ Chloroplasts contain the substance chlorophyll, which absorbs sunlight. ▪ Question: What organelle is the energy powerhouse in an animal cell?
ORGANELLES - PLANT �The Cell Wall ▪ Rigid cell wall surrounding the cell membrane. ▪ The tough wall gives added stability and protection to the plant cell.
ORGANELLES - PLANT �Vacuoles ▪ ▪ Large, liquid-filled organelles Can occupy up to 90% of a cell's volume and have a single membrane. Main function - a space-filler in the cell Secondary function - digestive functions similar to lysosomes (which are also present in plant cells)
VISUAL COMPARISON ANIMAL AND PLANT CELLS
FUNCTION/JOB OF ORGANELLES Cell Rap Organelle - Functions Cell Prezi - Interactive Biology for Kids - Inside the Cell
TITAN CREED Titans take ownership of and find joy in learning.
Student Exploration Websites • • • • Amazing Cells (University of Utah) Video/Quiz: Cell Structures (Brain Pop) Interactive Cells Website (Cells Alive!) Cells and Cell Processes (Boise State) Video/Quiz: Cell Specialization (Brain. Pop) Identifying Eukaryotic Animal Cell Organelles (Wisc-Online) Interactive/Quiz: Eukaryotic Cells Assembling the Cell (Wisc-Online) Video/Quiz: Eukaryotic Organelles (Biology for a Changing World) Quiz: Cell Organelles and Their Function (QUIA) Comparison of Plant and Animal Cells Quiz: Parts of the Microscope Virtual Scanning Electron Microscopy Fun Interactive Cell Size and Scale (University of Utah) Reading/Quiz: The Discovery and Structure of Cells (Vision Learning) Quiz: Cell Overview (Biology for Kids) Quiz: Cell Organelles (Biology for Kids)
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