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Chapter 3B Notes
Chapter 3B Notes

... – Pumps against Na+ and K+ gradients to maintain high intracellular K+ concentration and high extracellular Na+ concentration • Maintains electrochemical gradients essential for functions of muscle and nerve tissues • Allows all cells to maintain fluid volume ...
Name: Cell City Floating around in the cytoplasm are small
Name: Cell City Floating around in the cytoplasm are small

... As you move through this worksheet, see if you can match the important parts of the city listed above to the specific organelles found in cells. Be sure to write neatly, and in complete sentences. ...
Active and Passive Transport
Active and Passive Transport

... gases, nutrients, wastes, etc. between cells and extracellular fluid; allows for small nutrients and gases to enter/exit. No NET diffusion/osmosis after equilibrium is established. ...
Organelle A Organelle B
Organelle A Organelle B

... A) All organisms are constructed of cells B) Cells are the basic unit of life C) All cells are exactly alike D) All cells come from existing cells 2) What two parts of the plant cell are NOT part of an animal cell? A) Cell membrane and cytoplasm B) Cell wall and cytoplasm C) Cell wall and chloroplas ...
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... up a cell membrane. It emphasizes both the whereas any type of diffusion is the fluidity of the membrane and the variety of movement of molecules down a molecules that make up the membrane. concentration gradient. 11. selective permeability 2. Both involve the movement of molecules SECTION 4. DIFFUS ...
lysosomes
lysosomes

... • Also present in the plasma membrane – but not to any extent in other membranes in the cell ...
The Building Blocks of Life
The Building Blocks of Life

... van Leeuwenhoek (1680’s) ...
Cell Structure and Function description
Cell Structure and Function description

... small in Animal ...
Cell Structure & Function
Cell Structure & Function

... • Controls level of water and other materials in cell • If your mitochondria wasn’t working properly, you wouldn’t be making enough energy and may feel very tired!! ...
1. All organisms are composed of one or more cells. 2. The cell is
1. All organisms are composed of one or more cells. 2. The cell is

... proteins & lipids from the ER ...
A. diffuser - Haiku Learning
A. diffuser - Haiku Learning

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Mighty Mitochondria
Mighty Mitochondria

... mitochondria. A mitochondrion is shaped perfectly to maximize its efforts. Mitochondria are very small organelles. You might find cells with several thousand mitochondria. The number depends on what the cell needs to do. If the purpose of the cell is to transmit nerve impulses, there will be fewer m ...
Biology Discussion Points
Biology Discussion Points

... water, the water is pumped into the vacuole. When the vacuole is full, it expels the water through a pore in the cytoplasm which can be opened and closed. Other protists, such as Amoeba, have contractile vacuoles that move to the surface of the cell when full and undergo exocytosis. In amoeba contra ...
Multiple Choice - Net Start Class
Multiple Choice - Net Start Class

... 11. List the four macromolecules and example of each. carbohydrate- sugar (glucose) and starch protein – enzymes, catalysts nucleotides- DNA, RNA lipids- fats, phospholipids 12. Protein Structure 1. primary - describes the order of amino acids 2. secondary - 3d shape that results from hydrogen bondi ...
cell structure and function
cell structure and function

... • Gram-negative cells have only a thin layer of peptidoglycan, outside of which is a membrane containing lipopolysaccharide (LPS); Gram-negative cells appear pink. ...
Quantification of Endoplasmic Reticulum and Golgi apparatus in cell
Quantification of Endoplasmic Reticulum and Golgi apparatus in cell

... The Arrayscan Spotdetector Bioapplication and the Organelle-ID RGB™ Reagent kit from Enzo Lifesciences were used together in a study to detect and quantify changes in ER and Golgi intensity in different cell lines. We found that, whilst there was no statistically significant difference in nuclear si ...
Cell Structure and Diversity
Cell Structure and Diversity

... and Nicolson (1972), which suggests that the lipid bilayer acts as a matrix into which proteins are embedded or into which they are absorbed. Structure:  The cell membrane is a fluid phospholipid bilayer coated and embedded with protein.  Protein gives elasticity and lipid allows fat-soluble molec ...
A Look at Cells
A Look at Cells

... Virchow, a physician, said “all new cells come from other cells” These 3 pieces of information are incorporated into the modern cell theory which states: * Cells are the basic unit of life * All organisms are made of cells * All cells come from other cells Basic Cell Structures All cells have some s ...
AH summary Unit 1
AH summary Unit 1

... (a) Movement of molecules across membranes The phospholipid bilayer acts as a barrier to ions and most uncharged polar molecules. Some small molecules such as oxygen and carbon dioxide pass through. Specific transmembrane proteins, which act as channels or transporters, control ion concentrations an ...
Tisdag 17 jan
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... asthma, low grade metabolic inflammation, etc.), furthermore it is used as an indicator of well being in farmed fish. Permeability, the flow of substances across a porous wall, in the intestine can mainly be divided in two fundamentally different parts; transcellular (through cells, across both apic ...
Fitting fibrils: Modelling cell wall development in plants
Fitting fibrils: Modelling cell wall development in plants

... CMFs and MTs in expanding cells, where forces are exerted. • In many non-expanding cells there is no co-alignment between MTs and CMFs ...
DEF: colored body
DEF: colored body

... Cell Organelles: Cells take on a variety of shapes and sizes based on their function. For example, plant cells, that specialize in photosynthesis and that lack the ability to move, appear very different from cells found in the sides of our cheeks. Similarly, nerve cells that function to send message ...
3.1 Study Guide
3.1 Study Guide

... Complete the Y diagram below to compare and contrast the processes of endocytosis and exocytosis. Under the heading “endocytosis,” list the characteristics of endocytosis. Under the heading “exocytosis,” list the characteristics of exocytosis. At the bottom of the Y, write the characteristics that b ...
Cell Lab Report
Cell Lab Report

... 2. Name two organelles found in plant cells but not in animal cells. 3. What are three structures found in plant and animal cells? 4. In prokaryotes, plants, and fungi, what structure surrounds the cell membrane and provides cell support? Important Drawing Directions 1. For each specimen that you dr ...
Instructional Powerpoint
Instructional Powerpoint

... Two Types of Organism based on Cell Structures •Prokaryotes- organisms that have prokaryotic cells- cells that do not have a nucleus or organelles •Eukaryotes-organism that have eukaryotic cells-cells that have a nucleus and structures called organelles that carryout specific functions. ...
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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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