Cells: The Basic Units of Life PDF
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This document provides an overview of cells, covering their basic structure, function, types, and the theory of cells as the basic unit of life. It also details important cell organelles like mitochondria, ribosomes, and the endoplasmic reticulum.
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Cells: The Basic Units of Life How big is a cell? http://www.cellsalive.com/howbig.htm The Cell Theory 1. All organisms are made of cells. 2. The cell is the basic unit of life in all living things. 3. All cells come from existing cells. THIS IS IMPORTANT BECAUSE IT SHOW...
Cells: The Basic Units of Life How big is a cell? http://www.cellsalive.com/howbig.htm The Cell Theory 1. All organisms are made of cells. 2. The cell is the basic unit of life in all living things. 3. All cells come from existing cells. THIS IS IMPORTANT BECAUSE IT SHOWS THAT ALL LIVING THINGS SHARE A SIMILAR STRUCTURE Two Types of Cells All cells, whether they are prokaryotic or eukaryotic, have some common features Organelles Organelles are structures that enable the cell to live, grow and reproduce. Two Types of Cells Prokaryotic Cells: Have no membrane covered nucleus Have no membrane - covered organelles Have circular DNA Are bacteria Two Types of Cells Eukaryotic Cells: Have a nucleus Have a membrane - covered organelles Have linear DNA Are all other cells Organelles Organelles are structures that enable the cell to live, grow and reproduce. https://www.youtube.com/watch?v=ufCiGz75DAk https://www.youtube.com/watch?v=J5pWH1r3pgU Cell Membrane Outer layer of cell Allows nutrients into the cell and wastes outside of the cell “Gate into the city” Cell Membrane Cytoplasm Cytoplasm a jelly- like fluid contained in the cell that holds the organelles. The Nucleus DNA The control center of the cell Contains the Cell’s DNA Nucleolus Nuclear Membrane “Mayor’s office” Mitochondria Outer Membrane Power center of cell Provides the energy the cell needs to move, divide, etc. Inner Membrane “Electric company of the cell” Ribosomes Site where proteins are made Cell parts are made of proteins “Factories of the cell” Endoplasmic Reticulum Endoplasmic Reticulum Transportation system of cell Rough ER- ribosome's attached Smooth ER- no ribosome's Ribosomes “Roadways of the cell” Golgi Complex Packaging house of cell Packages, processes, and ships out the stuff the cell makes “UPS of the cell” Lysosomes Digests food particles and cell parts – “Garbage men” Protects cell by digesting foreign invaders – “Police men Vacuole Stores water, food & Vacuole wastes Vacuole is largest organelle in plant cell Cell Wall Found only in plant cells Protects and supports the cell Chloroplasts Found only in plant cells Contains chlorophyll (makes plants green) Where photosynthesis takes place Plant or Animal Cell? Found in Plant and Animal cells: Found only in Plant Cells: Nucleus Chloroplasts Golgi Complex Mitochondrion Cell Wall Lyosomes Endoplasmic Reticulum Cell Membrane Ribosomes Vacuoles