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CELL STRUCTURE
CELL STRUCTURE

... Chapter 3 - Cell reticulum. Indeed, in some cells it is exactly like a piece of rough endoplasmic reticulum complete with attached ribosomes. These two membranes have many gaps in them which are called nuclear pores. The gaps are relatively large much bigger than the protein pores in the cell surfa ...
The Action Potential
The Action Potential

... Ion channel proteins in the membrane help transport positive and negative ions across to balance out the charges. ...
CELL PARTS Chapter 4
CELL PARTS Chapter 4

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Lecture Herbicide x Plant Interactions Absorption and Translocation
Lecture Herbicide x Plant Interactions Absorption and Translocation

... pH outside the cell is lower at 5.0 to 5.5 (higher H+ concentration) vs. inside the cell at 7.2 to 8.0 (lower H+ concentration) weak acid herbicide outside the cell picks up a H+ and becomes protonated [R-COO - ≡ RCOOH (noncharged )] and loses its negative charge. The herbicide is now uncharged (mol ...
Summative 1 – Model Cell
Summative 1 – Model Cell

... demonstrate an understanding of the postulates of the cell theory (e.g., the cell is the basic unit of life; all cells come from pre-existing cells; all living things are made up of one or more cells) 8s13 identify structures and organelles in cells, including the nucleus, cell membrane, cell wall, ...
Review Packet 2
Review Packet 2

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Prokaryotic Cell Structure and Function:
Prokaryotic Cell Structure and Function:

... Pili (singular = pilus) are longer and less numerous than fimbriae and are made of pilin proteins. Pili allow bacteria to bind other cells of the same species and facilitate genetic exchange, i.e., the passage of DNA from one cell to another. Pili involved in this gene transfer activity are called " ...
Cell Structure chapt04
Cell Structure chapt04

... • Molecular motor proteins such as kinesin and dyein use ATP energy to move organelles in the cytoplasm along microtubule tracks ...
Long term memory
Long term memory

... synaptic vesicles 4. A rise in cytosolic Ca2+ triggers fusion of the docked vesicles and release of neurotransmitters into the synaptic cleft. 5. Synaptic-vesicle membrane proteins are then specifically recovered by endocytosis, usually in clathrin-coated vesicles. The clathrin coat is depolymerized ...
3. Please give an example of a Prokaryotic cell.
3. Please give an example of a Prokaryotic cell.

... 1. Please describe how osmosis and diffusion are different. 2. Please compare and contrast endocytosis and exocytosis. 3. How do these types of endocytosis differ: phagocytosis and pinocytosis ...
At work: Finding out about Amoeba Copymaster Information Finding
At work: Finding out about Amoeba Copymaster Information Finding

... If amoeba comes upon food, e.g. bacteria or other small single-celled organisms, it uses its pseudopodia to flow around the food and form a food vacuole7 around it. Chemicals in the cytoplasm then taken up by single-celled the cytoplasm. There are always several food break down the food, and thee.g. ...
chapter07-Cells - Catawba County Schools
chapter07-Cells - Catawba County Schools

... Answers may include: monitor (interfaces with the computer’s environment), software (instructions for how to carry out different jobs), CPU (directs the computer's activities), recycle bin or trash can (storage area for wastes), and so on. 2. How do the functions of these computer parts correspond t ...
Lecture Slides for Carbohydrates
Lecture Slides for Carbohydrates

... • Cell surface or extracellular matrix • Glycosaminoglycan(s) bound to core protein • Noncovalent attachments to help bind ...
Control of microbial growth: Sterilization and disinfectants
Control of microbial growth: Sterilization and disinfectants

... rays; important treatment of plastics, various foods. – Irradiation of meat important tool in food safety. – Microwaves only boil; ultrasonics used to break cells. ...
Mitosis and Cancer Picture Book
Mitosis and Cancer Picture Book

... and the link to cancer in a way that a child could understand. They have discussed possible causes of cancer however may have forgotten a few crucial terms in describing the previous stated processes or more creativity and care could have been exhibited in their final product. 15 points. MET STANDAR ...
Cell Parts and Functions
Cell Parts and Functions

...  Animals – many small vacuoles  Plants – one large central vacuole filled with watery fluid that strengthens the cell and helps to support the plant ...
Chapter 3 Cells The Basic Units of Life
Chapter 3 Cells The Basic Units of Life

... Exceptions to cell theory • Protozoans do not have cellular body. They are acellular. • Bacteria and blue green algae (cynobacteria) do not possess an organised nucleus. Their genetic material lies uncovered in the cytoplasm. They also lack membrane bound organelles. • Some tissues such as connecti ...
Protomorphogen Information Sheet
Protomorphogen Information Sheet

... serve both as a template and a catalyst to initiate the formation of specific protein molecules. At its most basic level, the attached nucleoprotein moiety is simply attracted and bound due to this chemical affinity of the mineral skeleton. It follows then that the individual genetic pattern is acti ...
APOPTOSIS: An overview
APOPTOSIS: An overview

... fittest cell in a colony • Every cell carries the molecular machinery to do PCD! • Cells that are sensitive to extracellular signals will survive, cell that cannot compete with their more vital sisters will undergo apoptosis. ...
Cell Count Game
Cell Count Game

... energy & converts it into sugar molecules. ...
Cycling of Matter in Living Systems
Cycling of Matter in Living Systems

... - proteins and other molecules are embedded between and attached to the phospholipids - the phospholipid has a head and a tail (p. 291) - the top end is hydrophilic – ‘water-loving’ - the tail end is hydrophobic – ‘water-fearing’ (do not dissolve readily in water) - the two tail ends point to the mi ...
REVIEW
REVIEW

... cell. Label each part of the figure in the spaces provided. a._______________________ ...
AP Biology Discussion Notes
AP Biology Discussion Notes

... Testosterone (pg 63) Compare the 3 chemicals in terms of differences and similarities in structure/function *Remember cholesterol is a precursor to making steroids, ...
Crossing Membranes 1 – Passive Processes
Crossing Membranes 1 – Passive Processes

... Channel Proteins facilitate the diffusion of Ions ...
Document
Document

... a. transportation b. diffusion c. active transport d. osmosis ...
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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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