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The Phenotype of 'Cancer' Cells
The Phenotype of 'Cancer' Cells

... synthesis, protein synthesis, protein modification in the Golgi apparatus, protein packaging, and export of newly synthesized proteins. Note where “Growth Factor” is being used to identify the newly synthesized protein, this does not mean that it is acting as a growth factor yet. It is being used an ...
Neurons
Neurons

... An action potential occurs when there is a reversal of the normal resting potential (goes from negative to positive). Also called depolarization. Depolarization occurs due to the opening of voltage gated Na channel allowing the influx of Na. Repolarization of the cell is due to Potassium efflux.  I ...
File - wentworth science
File - wentworth science

... This is so because the nucleus contains the DNA The DNA is the molecule that contains the genetic code and determines what proteins are to be made by the cell and therefore, all the physical traits of an organism Chromosomes are actually DNA molecules that are all folded up ...
Unit 1: Biology - science physics
Unit 1: Biology - science physics

... (nutrients) and out of the cell (proteins/wastes). • Exocytosis – a small membrane-bound vesicle joins to the plasma membrane, and releases its contents to the outside of the cell. • Endocytosis – the plasma membrane sinks and forms a vesicle enclosing the material bringing it into the cell. • When ...
The Fundamental Units of Life Classwork Name: 7th Grade PSI 1
The Fundamental Units of Life Classwork Name: 7th Grade PSI 1

... 3. Yes; humans exhibit the four characteristics of living things (growth, respond to stimuli, reproduce, use energy for growth and reproduction) AND humans can function on their own. 4. Rocks are nonliving. They are not composed of cells. 5. Bacteria are unicellular and prokaryotic. 6. Cells are fou ...
The Fundamental Units of Life Classwork Name: 7th Grade PSI
The Fundamental Units of Life Classwork Name: 7th Grade PSI

... 3. Yes; humans exhibit the four characteristics of living things (growth, respond to stimuli, reproduce, use energy for growth and reproduction) AND humans can function on their own. 4. Rocks are nonliving. They are not composed of cells. 5. Bacteria are unicellular and prokaryotic. 6. Cells are fou ...
Nutrition
Nutrition

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Cell Organelles
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... • 1.e. Students know the role of the endoplasmic reticulum and Golgi apparatus in the secretion of proteins. • 1.f. Students know usable energy is captured from sunlight by chloroplasts and is stored through the synthesis of sugar from carbon dioxide. • 1.g. Students know the role of the mitochondri ...
Matter in Ecosystems Part 2
Matter in Ecosystems Part 2

... b. Breakdown of waste ...
Unit 2 _Cells_ Plan
Unit 2 _Cells_ Plan

... Understandings: Students will understand that….  Every living thing is made of cells and there are certain minimum requirements to qualify as a living cell.  Cellular organelles divide the cell’s labor of making proteins.  Some items can move directly through the cell membrane, others require the ...
How does microbiology help us better understand the world
How does microbiology help us better understand the world

... Other: ...
cells - Eastchester High School
cells - Eastchester High School

... concentration (going up a stairs). As this process does not naturally occur, the cell has to use ____________ in the form of _________to make active transport occur. ...
Profil N° (à remplir par VAS) FINANCEMENT Demandé
Profil N° (à remplir par VAS) FINANCEMENT Demandé

... Assumptions and questions (8 lines) In this project, we hypothesis that epigenetics mechanisms are involves in normal and tumor lymphoid stromal differentiation. We will study importance of these mechanisms in setting up normal lymphoid stroma and will determine whether theses mechanisms are identic ...
BigBang - Warren`s Science Page
BigBang - Warren`s Science Page

... Proto-cells were simple membrane bound sacs containing nucleic acids that served as templates for proteins Membrane bound sacs can form spontaneously, incorporating proteins and fatty acids in conditions similar to the clay tidal flats ...
chapter 8: cellular transport and the cell cycle
chapter 8: cellular transport and the cell cycle

... Normal Control of the Cell Cycle Proteins and enzymes control the cell cycle • The cell cycle is controlled by proteins called cyclins and a set of enzymes that attach to the cyclin and become activated. • Occasionally, cells lose control of the cell cycle. • This uncontrolled dividing of cells can ...
Animal cells usually have an irregular shape, and plant cells usually
Animal cells usually have an irregular shape, and plant cells usually

... cell could be different than the external environment. Cell membranes must have been so advantageous that these encased replicators quickly out-competed "naked" replicators. This breakthrough would have given rise to an organism much like a modern bacterium. ...
Chapter 6 A Tour of a Cell
Chapter 6 A Tour of a Cell

... Hydrophobic region Hydrophilic region ...
Introduction:
Introduction:

... The students will need to create an essay based on the information that they have found and the project that they have created. It will need to include an introductory statement or paragraph, the body paragraph(s) which will include any information about their specific cell type along with all of th ...
Effect of Halocin H4 on Cells of Halobacterium hdobium
Effect of Halocin H4 on Cells of Halobacterium hdobium

... increase continued over a long period. These results indicate that in some way halocin H4 alters the permeability of the membrane towards H+ ions, impeding their normal return to the intracellular medium. The uptake of H+ from the medium is mainly attributed to two mechanisms located in the membrane ...
File
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... oxygen is converted to energy in the form of ATP each cell contains between 300-800 mitochondria depending on activity level has a double membrane inner membrane has many foldings = cristae ...
Proteins relevant for Stem Cell Research - Bio
Proteins relevant for Stem Cell Research - Bio

... The human body develops from a single diploid cell called a zygote and contains at adulthood an estimated 85 trillion cells, of which more than 150 billion turnover everyday.  All of these cells originate from a tiny population of so-called “embryonic” and “adult” stem cells which uniquely possess a ...
File - Intervention
File - Intervention

... The cell cycle is a sequence of several phases through which a cell passes as it grows, prepares for division, and divides. The cell cycle ensures that all cells of the organism have the same chromosomes and the same DNA. ...
Cells
Cells

... • Cell size is limited by the surface area-to-volume ratio • Cells can be studied structurally and chemically • The plasma membrane forms the outer surface of every cell • Cells are classified as either prokaryotic or eukaryotic Cells must maintain an efficient surface area-to-volume ratio in order ...
Online Activity: Types of Transport
Online Activity: Types of Transport

... 1. What does a cell need to take in to survive? ______________________________________________ ___________________________________________________________________________________ 2. What does a cell let out? _____________________________________________________________ 3. Think: Provide an example o ...
cell - Nozha Language Schools
cell - Nozha Language Schools

... 9- A tissue is composed of many similar cells 10- Tissues join together to make an organ 11- Examples of unicellular organisms are fungus and amoeba 12- The yeast fungus can not be seen by naked eye. 13- The economic importance of the yeast fungus is making bread and making ...
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Amitosis

Amitosis (a- + mitosis) is absence of mitosis, the usual form of cell division in the cells of eukaryotes. There are several senses in which eukaryotic cells can be amitotic. One refers to capability for non-mitotic division and the other refers to lack of capability for division. In one sense of the word, which is now mostly obsolete, amitosis is cell division in eukaryotic cells that happens without the usual features of mitosis as seen on microscopy, namely, without nuclear envelope breakdown and without formation of mitotic spindle and condensed chromosomes as far as microscopy can detect. However, most examples of cell division formerly thought to belong to this supposedly ""non-mitotic"" class, such as the division of unicellular eukaryotes, are today recognized as belonging to a class of mitosis called closed mitosis. A spectrum of mitotic activity can be categorized as open, semi-closed, and closed mitosis, depending on the fate of the nuclear envelope. An exception is the division of ciliate macronucleus, which is not mitotic, and the reference to this process as amitosis may be the only legitimate use of the ""non-mitotic division"" sense of the term today. In animals and plants which normally have open mitosis, the microscopic picture described in the 19th century as amitosis most likely corresponded to apoptosis, a process of programmed cell death associated with fragmentation of the nucleus and cytoplasm. Relatedly, even in the late 19th century cytologists mentioned that in larger life forms, amitosis is a ""forerunner of degeneration"".Another sense of amitotic refers to cells of certain tissues that are usually no longer capable of mitosis once the organism has matured into adulthood. In humans this is true of various muscle and nerve tissue types; if the existing ones are damaged, they cannot be replaced with new ones of equal capability. For example, cardiac muscle destroyed by heart attack and nerves destroyed by piercing trauma usually cannot regenerate. In contrast, skin cells are capable of mitosis throughout adulthood; old skin cells that die and slough off are replaced with new ones. Human liver tissue also has a sort of dormant regenerative ability; it is usually not needed or expressed but can be elicited if needed.
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