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To return to the chapter summary click escape or close this document.
To return to the chapter summary click escape or close this document.

... Function - Selectively permeable  Structure ...
Can you hear me now? - International Symposium organized by the
Can you hear me now? - International Symposium organized by the

... But because the OHCs play an important role in the gain and tuning of the signal we send to the brainstem and their fragile nature, handle them with care! Too much noise and poof! - they're gone. Then, all you hear is faint and fuzzy. Sounds awful, doesn't it? ...
Cells Alive- Interactive Internet Lesson
Cells Alive- Interactive Internet Lesson

... bacterial cell. Are any of the same parts found in eukaryotic cells? If so, name them_______________________ _________________________________________________________________________________________. Prokaryotes are bacteria ...
The Cell Name: Date: 1. Which organelle is primarily
The Cell Name: Date: 1. Which organelle is primarily

... A biologist diluted a blood sample with distilled water. While observing the sample under a microscope, she noted that the red blood cells burst. This bursting is most likely the result of which process? ...
Anatomy and Physiology
Anatomy and Physiology

... The “factory” area of the cell. 1. Cytosol: semitransparent fluid inside the cell; suspends the organelles 2. Inclusions: chemical substances within the cell Most are stored nutrients or cell products. 3. Organelles: “machinery of the cell” All organelles are bound by the same plasma membrane that s ...
The Cell cp 13
The Cell cp 13

... • 19. Cytoskeleton - network of protein filaments that helps the cell to maintain its shape – also involved in cell movement - these are made of: a) microtubules - hollow tubes of protein – maintain cell shape & serve as “tracks” along which organelles are moved (used to make cilia & ...
Introduction to Microbiology
Introduction to Microbiology

... membrane is very selective about what it allows to pass through; this characteristic is referred to as “selective permeability.” For example, it allows oxygen and nutrients to enter the cell while keeping toxins and waste products out. The plasma membrane is a double phospholipid membrane, or a lipi ...
Antivirals - chemistryatdulwich
Antivirals - chemistryatdulwich

... (=target molecule of antiviral drug) that binds with the active site in a substrate molecule called sialic acid that is part of the host cell membrane. • This binding action provides a pathway with a lower activation energy for a reaction that allows new viral particles (after multiplication) to lea ...
UNIT 3 Module 4.1 Microscopes provide windows to the world of the
UNIT 3 Module 4.1 Microscopes provide windows to the world of the

... for small molecules to get into and out of cells. For example, O2 moves into red blood cells and CO2 moves out of these cells by this process in the lungs. The reverse process takes place in the tissue because the concentration gradients have reversed. Module 5.15 Transport proteins facilitate diffu ...
Cellular Transport 2016-2017
Cellular Transport 2016-2017

... -Diffusion requires no extra energy. -Items move from a high concentration to a low concentration due to the motion of the molecules. -When molecules move from a high concentration into a lower concentration we say the item is moving down the ...
ch_03 - studylib.net
ch_03 - studylib.net

... The cytoplasmic membrane is a double-layered structure, called a phospholipid bilayer, composed of molecules with hydrophobic lipid tails and hydrophilic phosphate heads. Proteins associated with the membrane vary in location and function, and are able to flow laterally within it. The fluid mosaic m ...
Prokaryotic vs. Eukaryotic Cells
Prokaryotic vs. Eukaryotic Cells

... • Prokaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the ...
Biology 410 - KSU Web Home
Biology 410 - KSU Web Home

... Note that some components may have more than one function. Also, you can assume that an appropriate experimental cell system is available. These are worth 10 pt each. For example: N-acetylglucosamine phosphotransferase (in the cis Golgi): This enzyme recognizes proteins that are destined to go to ly ...
Cell Parts Analogy Project
Cell Parts Analogy Project

... Part 2: Explain your analogy Plan out your analogy, then type it in paragraph form. This is a tour of your cell analogy. Start by explaining what you have chosen to be your cell. Then explain each organelle representation and WHY you made that item represent that particular organelle. You need to re ...
SF Ev L2 spark
SF Ev L2 spark

... The pyrophosphate could have driven the formation of amino acids, and nucleotides. Temperature gradient between the top and bottom of the pores concentrate nucleotides at one end, increasing their likelihood of ploymerising, forming RNA and proteins. Convection currents would raise and lower the tem ...
Cells - SCHOOLinSITES
Cells - SCHOOLinSITES

... Cell Discovery ...
Transport across membranes File
Transport across membranes File

... molecules, although polar, are small enough to diffuse across membranes in a manner that is not entirely understood. ■ Membranes are permeable to lipids, which can pass through the nonpolar interior of the lipid bilayer. Membrane permeability of most compounds is directly proportional to their parti ...
Chapter 4 Functional Anatomy of Prokaryotic and Eukaryotic Cells
Chapter 4 Functional Anatomy of Prokaryotic and Eukaryotic Cells

... bilayer. Protein molecules are embedded in the membrane; along with phospholipids, they may move freely within the membrane. This arrangement is called the fluid mosaic model. The most important function of the plasma membrane is as a selective barrier. It is selectively permeable (semipermeable), a ...
Photo Album
Photo Album

... Plant and Animal Cells Under the Microscope 1. What indicators were used to help view some organelles under the microscope? 2. What is the structural difference between cheek cells and frog’s blood? How does this affect the function? 3. What structure did plant cells have that animal cells did no ...
Slide 1
Slide 1

... Biomimetics ...
Cells: Prokaryote vs Eukaryote
Cells: Prokaryote vs Eukaryote

... sticky note and place on the parking lot ...
Objectives
Objectives

... * Describe the major processes of life and their presence in prokaryotes, eukaryotes and viruses. * Compare and contrast prokaryotic and eukaryotic cells.  Describe the cell shapes and arrangements of bacteria, with examples as discussed in lecture. * Describe the composition, function, and relevan ...
bio_ch03
bio_ch03

... that cannot diffuse across a membrane. ...
Chapter 5
Chapter 5

... Movement that requires energy is called: ACTIVE TRANSPORT-use energy to push molecules against the concentration gradient…in other words…you are trying to fill up a space that is already full. -imagine rowing a canoe upriver, against the current -important in keeping the cell “balanced” with some mo ...
3.5 Active Transport, Endocytosis, and Exocytosis
3.5 Active Transport, Endocytosis, and Exocytosis

... that cannot diffuse across a membrane. ...
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Cell membrane



The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins. Cell membranes are involved in a variety of cellular processes such as cell adhesion, ion conductivity and cell signalling and serve as the attachment surface for several extracellular structures, including the cell wall, glycocalyx, and intracellular cytoskeleton. Cell membranes can be artificially reassembled.
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