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7-2 Eukaryotic Cell Structure. Objectives. Recognize cells both increase in number and differentiate, becoming specialized in structure and function, during and after embryonic development. Describe the structure of cell parts found in different types of cells and the functions they perform.
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Objectives • Recognize cells both increase in number and differentiate, becoming specialized in structure and function, during and after embryonic development. • Describe the structure of cell parts found in different types of cells and the functions they perform. • Explain physical and chemical interactions that occur between organelles as they carry out life processes.
Descriptors Identify that all organisms are made of cells. Identify and describe cell structures and functions. Define organelles by their functions. Identify cell differentiation. Explain the chemical and physical interactions between organelles as they carry out life processes.
Review • Who was the first person to use the term cell? • What are the three parts of the cell theory? • Name a difference between a prokaryotic cell and a eukaryotic cell. • Did you incorporate biology terms into your everyday conversation over the weekend?
Comparing the Cell to a Factory • Organelle= “little organ” • Found only inside eukaryotic cells! • Everything in a cell except the nucleus is cytoplasm.
Expert Groups!!! • FROM HERE, YOU WILL PRESENT THE INFORMATION FOR NOTES! • Ace - Nucleus • King - Ribosomes • Queen – Endoplasmic reticulum • Jack – Golgi Apparatus • 10 - Lysosomes • 9 - Mitochondria • 8 - Chloroplasts • 7 - Vacuole
Nucleus • Nickname: “The Control Center” • Function: Contains DNA and nucleolus. • DNA is the coded instructions for making proteins.
Ribosomes • Nickname: “The Assembly Line” • Function: Site of protein synthesis. • Found both on rough ER and throughout the cytoplasm.
Nickname: “Highway of the cell” Function: Site where proteins are assembled and delivered through the cell. Rough ER: studded with ribosomes; it makes proteins Smooth ER: no ribosomes; it makes lipids Endoplasmic Reticulum
Golgi Apparatus Diagram • Nickname: “The Mailroom” • Function: Modifies, sorts, and packages materials for transport inside/outside the cell. • Looks like a stack of pancakes! Information
Lysosomes • Nickname: “Clean-up Crew” • Function: • Breakdown materials so the cell can use them. • Breakdown useless organelles.
Nickname: “The Powerhouse” Function: Convert usable compounds for energy from the food you eat. Has it’s own strand of DNA. Almost all mitochondria comes from the cytoplasm of the egg cell (all mitochondria came from your mom). Mitochondria
7-2 Eukaryotic Cell Structures Continued…
Objectives • Recognize cells both increase in number and differentiate, becoming specialized in structure and function, during and after embryonic development. • Describe the structure of cell parts found in different types of cells and the functions they perform. • Explain physical and chemical interactions that occur between organelles as they carry out life processes.
Descriptors Identify that all organisms are made of cells. Identify and describe cell structures and functions. Define organelles by their functions. Identify cell differentiation. Explain the chemical and physical interactions between organelles as they carry out life processes.
Chloroplasts (Only in Plant Cells!) • Function: Traps energy from the sun to produce food for the plant. • Contains the green pigment chlorophyll.
Vacuole • Nickname: “The Warehouse” • Function: • Storage container for water and other materials. • Large central vacuole usually in plant cells • Can be many smaller vacuoles in animalcells
Cell Barriers • Cell membrane – ALL CELLS covered by thin flexible barrier. • Nickname: Doorman • Cell wall – strong supporting layer around membrane that gives cell shape. • Only in plant cells.
This Week… • Any questions for the good of the cause? • We will be doing a project centered around these organelles. • Next experimental design will also deal with cells.