The fluid mosaic model of the cell membrane. What is the fluid mosaic model? The fluid mosaic model is a model conceived by S.J. Singer and Garth Nicolson in 1972 to describe the structural features of biological membranes. The membrane is described to be fluid because of its hydrophobic integral components such as lipids and membrane proteins that move laterally or sideways throughout the membrane. That means the membrane is not solid‚ but more like a ’fluid’. The membrane is depicted as mosaic
Premium Protein Cell membrane Membrane biology
ASSIGNMENT 4 WEEK 1 - STORAGE DEVICES Describe the main working features of ONE of the following storage devices. Hard disk drive Optical storage Flash memory Include any relevant diagrams that help explain your answer. Optical Storage The optical storage device that most of us are familiar with is the compact disc (CD). A CD can store huge amounts of digital information (783 MB) on a very small surface that is incredibly inexpensive to manufacture. The design that makes this possible is
Premium Computer data storage Laser Light
A solar cell (also called photovoltaic cell or photoelectric cell) is a solid state electrical device that converts the energy of light directly into electricity by the photovoltaic effect. Assemblies of cells used to make solar modules which are used to capture energy from sunlight‚ are known as solar panels. The energy generated from these solar modules‚ referred to as solar power‚ is an example of solar energy. Photovoltaics is the field of technology and research related to the practical
Premium Solar cell
Wannabees and also Odd Girl Out‚ discusses two of these divisions. She labels the first group the "alpha" group; these are the girls that are considered "popular‚" who wear the trendy clothes‚ and are beautiful and wealthy. The second group she calls "beta‚" and these are the girls who are "outside the box" - they long to be invited to the parties‚ and try everything to fit in. Susannah Meadows‚ author of the June 3‚ 2002 cover story of Newsweek entitled‚ "Meet the Gamma Girls‚" breaks open a third group
Premium Mean Girls Girl Female
CELL ANALOGY THE ANIMAL CELL IS BEING COMPARED TO A FOOTBALL TEAM. BY: MYA FREAKIN BROWN AND CALEB FREAKIN MILLER ANIMAL CELL=FOOTBALL TEAM A CELL IS LIKENED TO A FOOTBALL TEAM BECAUSE‚ LIKE A CELL‚ A FOOTBALL TEAM HAS MANY PARTS TO IT WITH DIFFERENT FUNCTIONS. CELL MEMBRANE=OFFENSIVE LINE THE CELL MEMBRANE IS A SELECTIVE BARRIER FOR THE CELL. IT DETERMINES WHAT CAN ENTER OR LEAVE THE CELL‚ SO IT PROTECTS THE CELL FROM ITS SURROUNDINGS. THE OFFENSIVE LINE‚ LIKE THE CELL MEMBRANE PROTECTS THE
Premium Cell Organelle
Discovering Cells Directions: answer the following questions using complete sentences. Use pages 6C-13C of your textbook. 1. What are cells? 2. When was the first microscope invented? 3. What is a microscope? 4. What is the difference between a simple and compound microscope? 5. Who was one of the first people to observe cells? 6. What did Anton van Leeuwenhoek discover? 7. A Scanning Tunneling Microscope (STM)
Premium Cell Theodor Schwann Microscope
1. INTRODUCTION A solar cell is a device that converts the energy of sunlight directly into electricity by the photovoltaic effect. Sometimes the term solar cell is reserved for devices intended specifically to capture energy from sunlight‚ while the term photovoltaic cell is used when the light source is unspecified.”Photovoltaics” the field of technology and research related to the application of solar cells in producing electricity for practical use.
Premium Solar cell
October 2014 Cell Division Mitosis Abstract Mitosis and Meiosis: Cells can be divided in unicellular organisms or in multi-cellular organisms. DNA controls the cell division. Bacteria reproduce by a process called binary fission. Bacteria have one chromosome that’s attached to the cell membrane. The chromosome replicates and the two copies separate as the cell grows. Over a period of time this one cell makes two cells. Eukaryotes do the process of mitosis. In mitosis‚ each daughter cell gets about
Premium Mitosis Cell cycle Chromosome
How to Tell if a Cell Phone Is Being MonitoredHow to Tell if a Cell Phone Is Being Monitored With all of the latest hullabaloo about cell phones being used as bugging devices‚ you may be feeling a bit creeped out at the prospect of being monitored without your knowing it. Although some cell phones can be remotely programmed‚ most modern cell phones would require physical access to your phone to tamper with it. Luckily‚ when cell phones are transmitting‚ certain tell-tale signs can be a dead giveaway
Free Mobile phone GSM
When it comes to cell phones‚ practicality is not the first thing I consider. Many people are satisfied with just “having a phone that works”‚ but that’s never been good enough for me. I’ve owned my own cell phone ever since the fifth grade; a technology that none of my friends had at the time. Most kids would be happy just having a phone to begin with‚ but I have always enjoyed being a step ahead of everyone else. By the time my friends were getting their first cell phones‚ I was already on my second
Premium Mobile phone E-mail