logging in or signing up Cell as the basic unit of life zatirazak Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 8373 Category: Science & Tech.. License: All Rights Reserved Like it (13) Dislike it (5) Added: March 17, 2009 This Presentation is Public Favorites: 1 Presentation Description Basic Science Comments Posting comment... By: zatirazak (28 month(s) ago) Dear viewers, I just enable the ppt presentation & now u can download this. tq :) Saving..... Post Reply Close Saving..... Edit Comment Close By: KEVINKawde (28 month(s) ago) can you e-mail me this presentation....really appreciate...thanx!=) email@example.com Saving..... Post Reply Close Saving..... Edit Comment Close By: eila_zae (33 month(s) ago) tlg emailkan sy this powerpoint..plz..tq..firstname.lastname@example.org Saving..... Post Reply Close Saving..... Edit Comment Close By: amie1312 (33 month(s) ago) can you e-mail me this presentation....really appreciate...thanx!=) (email@example.com) Saving..... Post Reply Close Saving..... Edit Comment Close By: syazwan214 (34 month(s) ago) EMAIL ME THIS SLIDE.. firstname.lastname@example.org Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript CHAPTER 2 : CHAPTER 2 CELL AS THE BASIC UNIT OF LIVE Intro : Intro Cell is the basic unit of all living things. Microscope : Microscope Historians credit the invention of the compound microscope to the Dutch spectacle maker, Zacharias Janssen, around the year 1590. Eyepiece Lens: the lens at the top that you look through. They are usually 10X or 15X power. Arm: Supports the tube and connects it to the base Base: The bottom of the microscope, used for support Stage: The flat platform where you place your slides. Objective Lenses: Usually you will find 3 or 4 objective lenses on a microscope. They almost always consist of 4X, 10X, 40X and 100X powers. How to Focus Your Microscope? Image of cells under microscope : Image of cells under microscope Onion epidemics Human cheek cell Animal Cells : Animal Cells All animals and plants are made up of cells.This diagram represents an animal cell. Most cells have: A nucleus that controls the activities of the cell Cytoplasm, where most of the chemical reactions take place. The reactions are controlled by enzymes A cell membrane that controls what enters and leaves the cell Mitochondria in the cytoplasm where respiration takes place to release energy Plant Cells : Plant Cells This diagram represents a plant cell. Plant cells also have: A cell wall made of cellulose, which strengthens the cell and provides support They often have: Chloroplasts which contain the green pigment chlorophyll. This absorbs light energy for photosynthesis A permanent vacuole filled with cell sap, which provides support Specialised Cells : Specialised Cells Different types of cells look different because they are adapted to their function. They are said to be specialised.Similar cells that carry out the same function are grouped together in tissues. Different tissues work together in organs. Different organs are combined together to form organ systems. For example, muscle cells form muscle tissue. The heart contains muscle tissue, nervous tissue and connective tissue. The heart is part of the circulatory system. The Levels of Cell Organization : The Levels of Cell Organization Single Cell- smallest structural unit of an organism that is capable of independent function. Example - White Blood Cell Cell Slide 9: A group of cells that all do the same work Example - Muscle Tissue Organ : Organ A group of tissue that works together for perform a function Examples - Heart, Kidney, Lung System : System A group of organs that do a certian job. Examples - Circulatory System, Digestion System, Lymphatic System (immune System) Microorganisms : Microorganisms Structural Diagram of the Influenza Virus : Structural Diagram of the Influenza Virus Human body : Human body You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.