Cell Structure and Function - Windward Community College

Cell Structure and Function - Windward Community College

The Cell as the Fundamental Unit of Life: The Structure and Function of Cellular Organelles The cell is the smallest unit of life. All organisms are composed one

or more cells. New cells arise from previously existing cells. Basic Cell Structure Each cell has four common components: 1. Plasma membrane

2. Region containing DNA 3. Cytoplasm 4. Biochemical molecules & biochemical pathways Cells Two fundamental types:

Prokaryotic No Nucleus No organelles Small 100nm-5um Eukaryotic True Nucleus Membrane bound

organelles 10-100um Some are larger Classification Five kingdom system: Monera

Protista Plantae Fungi

Animalia Plantae Fungi Animalia

Six kingdom system: Eubacteria Archaebacteria Protista

Three domain system: Eubacteria Archaebacteria E

U K A

R Y A Protista

Archaebacteria Chromista Eubacteria

Archezoa Eight kingdom system: Plantae Fungi

Animalia Three Lineages of Life: Domain Bacteria Kingdom Eubacteria

Eubacteria Archaebacteria Protista Plantae

Fungi Prokaryotes: No true nucleus No membrane-bound organelles Cell Wall composed of peptidoglycan

Reproduce asexually by budding and fission Very small (1 - 10 m) Animalia Kingdom Archaebacteria Eubacteria

Archaebacteria Protista Plantae

Fungi Animalia Eukaria Prokaryotes:

No true nucleus No membrane-bound organelles like mitochondria or chloroplasts NO peptidoglycan in cell wall Reproduce asexually by budding and fission Very small (1 - 10 m) Extreme environments (high temperatures)

Prokaryotic Cells Eukaryotes Eubacteria

Archaebacteria Protista Plantae Fungi

Eukaryotes: True nucleus Membrane-bound organelles Cell size generally 10 - 100 m At least 4 lineages: Protista, Plantae, Fungi, Animalia

Animalia Eukaryotic Cells Typical Animal Cell

The Cytoplasm Plasma Membrane Fluid mosaic model: Working model of the membrane Protein molecules bobbing in phospholipid sea Proteins determine membranes specific

functions Structure of the Cell Membrane Phospholipids Most abundant lipid Polar/hydrophilic head(attracted to water) Pair of nonpolar/hydrophobic tails(repelled by water)

Hydrophilic head Hydrophobic tails Phospholipid bilayer:

Polar heads, outside & inside Nonpolar tails in the interior Cell Membranes Rough and Smooth ER

Golgi Apparatus Receives substances from ER, refines and packages them Lysosome Function Cytoskeleton

Cillia & Flagella- 9x2 arrangement 0.1 micrometer Flagellum

Flagellar Movement Ciliated Epithelium Ciliary Movement Ameboid Movement

Ex. WBC Typical Plant Cell Typical Plant Cell

Cell Walls Chloroplasts INQUIRY 1. Which kingdom do bacteria belong? 2. What is the difference between prokaryotic and

eukaryotic? 3. Compare a plant and animal cell. 4. What is the function of: Mitochondria Nucleus Golgi apparatus Lysozome

Ribosomes Smooth and rough ER Cellular Visions: The inner life of a cell (video) http://www.studiodaily.com/main/searchlist/6850.html

Recently Viewed Presentations

  • Element Baby Book Project - Santee School District

    Element Baby Book Project - Santee School District

    Element Baby Book Project. Procedures and Example. Congratulations! Introduction. In this project you will adopt an element from the periodic table. As the proud new parent of your element, you will create a baby book to remember each stage of...
  • Spelling, Punctuation and Grammar Revision Guide

    Spelling, Punctuation and Grammar Revision Guide

    Used to indicate a pause in speech or at the very end of a sentence so that words trail off into silence (this helps to create suspense). A pause in speech: "The sight was awesome… truly amazing." At end of...
  • Open Enrollment and Wellness Update

    Open Enrollment and Wellness Update

    Downloading and installing software from unknown or unreliable sources. Clicking on email or web links from infected sources. Sharing files (music, software, etc.) with others. How to Avoid Viruses and Other Malware. Ways malware can infect your computer:
  • DDEC: Data-Driven Equivalence Checking

    DDEC: Data-Driven Equivalence Checking

    Equivalence checking. Prove two programs are equivalent. Compiler optimizations. Validate refactorings. ... Using dynamic analysis to discover polynomial and array invariants. ICSE 2012. P. Garg, C. Löding, P. Madhusudan, D. Neider: Learning Universally Quantified Invariants of Linear Data ...
  • www.reproduktionsgenossenschaften.de

    www.reproduktionsgenossenschaften.de

    Es entfaltete sich die Produktion Freier Software (Linux, Apache, LibreOffice etc.) und des Freien Wissens (Wikipedia, OpenKnowledge). Ganz wesentlich für die weitere Entwicklung von Kommunikation und Kooperation war auch die Erfindung (1989) und Implementierung (1991) des HTML-Protokolls durch Tim Berners...
  • Budgeting Camille Bash, CPA, FHFMA, MBA, MA Director

    Budgeting Camille Bash, CPA, FHFMA, MBA, MA Director

    * 3 Healthcare Reform Landscape Near-Term Maryland Environment: HSCRC constraining hospital rate increases Maryland state budget still under stress Medicaid expansion greater than anticipated HSCRC deploying many new methodologies Admission-Readmission Revenue (ARR) payment structure (32 hospitals) Total Patient Revenue (TPR)...
  • Nutritional Needs: Infancy to Toddlers - Stephen F. Austin ...

    Nutritional Needs: Infancy to Toddlers - Stephen F. Austin ...

    The Plan shows what and how much achild should eat to meet his or her needs. Use the Plan as a general guide to helpfeed a toddler.A daily food plan shows what and how much a child should eat to...
  • The Ways of Knowing - TOKthinking

    The Ways of Knowing - TOKthinking

    Intuition is often contrasted with reason, as it is regarded as knowing without the use of rational processes. Jung (Psychologische. Typen. 1921) famously referred to intuition as perception via the unconscious, highlighting the idea that intuition is often seen as...