Cell Basics and Levels of Biological Organization Lesson

Cell Basics and Levels of Biological Organization Lesson 4 Pgs. 38 -50

Cell Basics l Warm-Up: l Complete page 39 (#1 -3) Copyright © 2010 Ryan P. Murphy

l Cells are the basic units of all living organisms. l Humans l have some 50 -75 Trillion Multicellular (More than one cell) l Some Protista have 1 - Unicellular Copyright © 2010 Ryan P. Murphy

l Cells are the basic units of all living organisms. l Humans l have some 50 -75 Trillion cells Multicellular (More than one cell) l Some Protista have 1 - Unicellular Copyright © 2010 Ryan P. Murphy

l Cells are the basic units of all living organisms. l Humans l have some 50 -75 Trillion Multicellular (More than one cell) (pg. 40) l Some Protista have 1 - Unicellular Copyright © 2010 Ryan P. Murphy

l Cells are the basic units of all living organisms. l Humans have some 50 -75 Trillion l Multicellular l Some (More than one cell) organisms have 1 – Unicellular (pg. 40) Copyright © 2010 Ryan P. Murphy

Unicellular Organisms Advantages Disadvantages • Need fewer resources • Can live in harsh conditions (salt water or hot springs) • The entire organism dies if the single cell dies!

Multicellular Organisms Advantages Disadvantages • Larger size • Longer life span • More complex, so they can do more • Need more resources to survive • Cells have special jobs so they depend on each other to allow the organism to live

• Area of Focus: Levels of Biological Organization. Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle n. Tissue n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Tissue n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Tissue n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Tissue n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Tissue Organ n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Tissue Organ n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Tissue Organ n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Tissue Organ n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Organ System Tissue Organ n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Organ System Tissue Organ n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Organ System Tissue Organ n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Organ System Tissue Organ n. Cell n. Many Systems Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Organism Organ System Tissue Organ n. Cell Copyright © 2010 Ryan P. Murphy

• Area of Focus: Levels of Biological Organization. Cell Organelle Organism Organ System Tissue Organ n. Cell Copyright © 2010 Ryan P. Murphy

Tissue (pg. 41) l Tissue- Group of similar cells that perform a common function l Types of Animal Tissue: l Nervous l Epithelial l Connective l Muscle l Types of Plant Tissue: l Transport l Protective l Ground

Complete the Venn Diagram on page 41 in your book

Venn Diagram Animal Tissue Nervous-messaging system Epithelial- barrier and protection Connective- support and nourishment Muscle- produces movement Both Have tissues that provide protection, nourishment, and support Plant Tissue Transport- moves food throughout the plant Protective- barrier and protection Ground- support, storage, and photosynthesis

Organ (pg. 42) l A structure made up of a collection of tissues that carries out a special function

Organ System (pg. 43) l. A group of organs that work together to perform body functions.

What jobs do organ systems perform to meet the needs of cells? Delivering Nutrients l Delivering Oxygen l Removing Wastes l

Homework! l Complete page 49 in your book! l It will be graded tomorrow!!