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Explore the inner workings of cells and their organelles. Learn about the cell membrane, nucleus, cytoplasm, ER, and Golgi bodies. Understand how cells function and interact within the body.
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Cell Structure & Function Cells and Heredity Chapter 1.2 (pgs 23-31)
Inside the Cell • Humans are made up of several bodily systems (Respiratory, Nervous, Digestive) that utilize organs • Cells have similar structures, called organelles.
Entering a Cell • Animal cells have only a Cell Membrane, which allows materials in & out of the cell.
Entering a Cell • Cells are held together with a Cell Wall • Found only in plant cells • Rigid layer made of cellulose
The Nucleus • The “brain” of the cell • Controls all aspects of the cell’s activity • Has a Nuclear Membrane • Protects the Nucleus just like the Cell Membrane.
Into the Cytoplasm • The area inside the cell is called the Cytoplasm, which is constantly churning • Contains many organelles.
The structure that allows materials In & Out of an animal cell is called…
The ER • The Endoplasmic Reticulum is the passageway that materials travel along • Ribosomeson the ER are protein factories, to build & repair cells • Golgi Bodies package and ship materials to other parts of the cell.
This organelle is the passageway for materials within a cell…
What to Work On • Read Section 1.2, pages 24-31 • Answer Section Review questions (#1-4) on page 31