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7Aa – Heart transplants/Human organs/Organ parts
7Aa – Heart transplants/Human organs/Organ parts

... When the heart from someone who has died is used to replace a damaged heart in someone else. nerve-us ...
Plant kingdom http://www.istockphoto.com/file_thumbview_approve
Plant kingdom http://www.istockphoto.com/file_thumbview_approve

... Note that these cells overlap are stacked haphazardly—an indication that these cells have been “transformed” and are on the way to becoming tumor forming cells (they are not obeying rules to stop dividing when cells come into contact with the membranes of adjacent cells). The cells are also very fla ...
Living Cells
Living Cells

... 5. Other structures are present in the cells of elodea, but most of these except the cell wall are hidden by chloroplasts. With patience and careful observation of many cells you may be able to find a nucleus in a spike cell. Spike cells are located at the edges of the elodea leaf. 6. Draw and some ...
cellular reproduction
cellular reproduction

... Anaphase: phase of mitosis where centromeres split and the chromatid pairs of each chromosome are pulled apart by microbtubules  Microtubules: thin, hollow cylinders made of protein that provide structural support for eukaryotic cells ...
No Slide Title
No Slide Title

... arachidonic acid (AA) pathway. AA is an unsaturated fatty acid that is a normal constituent of membrane phospholipids and is released from the phospholipids by the actions of phospholipase A2 (PLA2). Prostaglandins (PG) arise from a cyclic endoperoxide generated by the enzyme system PG synthetase, a ...
Document
Document

... All of the following are true about simple diffusion except: A. No energy is needed B. Molecules move from a low concentration to a high concentration. C. The molecules will spread out until equilibrium is reached D. Molecules move from a high concentration to a low concentration. ...
toward a `visible cell`… and beyond
toward a `visible cell`… and beyond

... additional image 'pre-processing' to help the 'signal' of interest (e.g. membranes, filaments, vesicles) to stand out against a sea of 'noise' in the background (e.g. cytoplasmic density). In a mathematical context, this enhancement of signal-to-noise generally improves the performance of algorithms ...
membranes and transport
membranes and transport

... basis for excitability in nerve and muscle cells. Where is the cell more negative? Inside or out? Inside! This is important for propogation of signals in neurons • Export of sodium from the cell provides the driving force for several facilitated transporters, which import glucose, amino acids and ot ...
Document
Document

... Use the figure to answer the following questions. 1. The diagrams below represent the six steps in one cycle of the sodium-potassium pump. The order of the steps has been scrambled. Beginning with diagram d (numbered 1), sequence the remaining diagrams by writing the appropriate numeral in each blan ...
European Respiratory Society Annual Congress 2012
European Respiratory Society Annual Congress 2012

... protein (GFP) gene to regulate expression of GFP followed by standard method. Applying flow cytometry measurement (FCM) to analyze the expression pattern of blaCTX-M-14 in single cell using GFP as the report genes. The expression pattern of cells after cultured with different ceftriaxone concentrati ...
BIOL 141: Foundations of Biology: Cells, Energy and
BIOL 141: Foundations of Biology: Cells, Energy and

...  Freeman, Scott 2011. Biological Science, 4th edition. Pearson/Benjamin Cummings Publishing Company, San Francisco. ...
Study Guide Biology 1408 Exam 1
Study Guide Biology 1408 Exam 1

... What is the a HYDRO-CARBON ? What is the difference between hydrophilic and hydrophobic ? Hydrocarbon chains are said to be hydrophobic; can you explain why ? (also see next question for that) What is an isomer ? What are the 6 functional groups that provide functionality to carbon chains ? (name th ...
Osmosis Diffusion Notes
Osmosis Diffusion Notes

... 1. Channel Protein- tunnel in and out. Can be gated to open and close. Use energy to go against concentration (active transport) and do not use energy to go with concentration (passive transport) 2. Receptor Protein- receives chemical signals from the blood and communicates them to the inside of th ...
A Head
A Head

... microscope. With the help of photomicrographs and electron micrographs of bacterial and yeast cells, explore bacterial and yeast cell structure. ...
Twizzler Mitosis
Twizzler Mitosis

... Lay your cell handouts on your table. Start off in the Parent Cell with one long and one short red twizzler. Replicate each chromosome by laying the other red chromosomes next to the original chromosomes. Take a marshmallow and cut a hole in the center, then slide the two copies of DNA through the m ...
Aim - What is the fluid mosaic model?
Aim - What is the fluid mosaic model?

... PK2w ...
0714 820 596  0755 27 93 17
0714 820 596 0755 27 93 17

2 The Cell: An Overview
2 The Cell: An Overview

... Adam Rutherford highlights the key historical experiments that identified cells, and development of cell theory, in an engaging and informative manner. Ask students: How is the endomembrane system distinct from other membranes in a eukaryotic cell? The concept of an organelle is something instructor ...
Adult Stem Cells as Regenerative Medicine
Adult Stem Cells as Regenerative Medicine

... Hematopoietic Stem Cell Stromal Cells Endothelial Progenitor Cells ...
Supplementary Infomation (doc 52K)
Supplementary Infomation (doc 52K)

... with DiOC(6)(3) to measure mitochondrial membrane potential and propidium iodide (PI) to determine cell viability 24h after treatments. (B) Quantification of PI positive cells 24h after treatments. Supplementary Figure 4: (A) Quantification of the LC3-II/LC3-I ratio by immunoblot in retinas from uni ...
Cel l and Tissue Injury
Cel l and Tissue Injury

... Causes of Cell and Tissue Injury ...
Cells_24912
Cells_24912

You Know You`re a Plant if You
You Know You`re a Plant if You

... one-third of the whole cell, but there are other important parts as well. Think about the cell as a building again. Each one needs a place to make power so it will be warm in the winter and cool in the summer. People used to cut down trees and store wood to use to heat their houses, but this doesn't ...
Cells are
Cells are

... – control internal conditions • homeostasis ...
Cell Membrane PPT
Cell Membrane PPT

... Cell transport involves the exchange of molecules through the Against the concentration gradient (low to high) ...
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Extracellular matrix



In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).
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