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Golgi apparatus

Endomembrane System

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Endomembrane system
Endoplasmic reticulum
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Ribosome
Biological membrane
mitochondrion
Cytoplasm

Endomembrane System This system controls the process of making proteins specified by the DNA in the nucleus and includes the organelles of the smooth ER, rough ER, and golgi apparatus. *Although ribosomes make proteins, it is not included in this system because it is not a membrane bound organelle and just composed of RNA and proteins.

Pearson Ch 6 - A Tour of the Cell

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Golgi apparatus

Ch 6: A Tour of the Cell Concept 6.2: Eukaryotic cells have internal membranes that compartmentalize their functions The basic structural and functional unit of every organism is one of two types of cells: prokaryotic or eukaryotic Only organisms of the domains Bacteria and Archaea consist of prokaryotic cells Protists, fungi, animals, and plants all consist of eukaryotic cells Overview: The Fundamental Units of Life All organisms are made of cells The cell is the simplest collection of matter that can be alive Cell structure is correlated to cellular function All cells are related by their descent from earlier cells Comparing Prokaryotic and Eukaryotic Cells Basic features of all cells: Plasma membrane Semifluid substance called cytosol Chromosomes (carry genes)

Raven Biology Chapter 4 Notes

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Golgi apparatus

Gavin Morgan 9/23/2015 Chapter 4 2-Point Notes Cell theory is the unifying foundation of cell biology: 1. All organisms are composed of one or more cells. 2. Cells are the smallest living things, and arise only by division of a previously existing cell. Cell size is limited: 1. As the size of a cell increases, the length of time for diffusion from the outside membrane to the interior of the cell increases as well. 2. Some cells, such as skeletal muscle cells, have more than on nucleus, allowing genetic information to be spread around a large cell. Microscopes allow visualization of cells and components:

AP Bio Chp 6

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AP Biology Reading Guide Chapter 6: A Tour of the Cell Fred and Theresa Holtzclaw Copyright ? 2010 Pearson Education, Inc. - 1 - Name_______________________Period___________ Chapter 6: A Tour of the Cell Concept 6.1 To study cells, biologists use microscopes and the tools of biochemistry 1. The study of cells has been limited by their small size, and so they were not seen and described until 1665, when Robert Hooke first looked at dead cells from an oak tree. His contemporary, Anton van Leeuwenhoek, crafted lenses; and with the improvements in optical aids, a new world was opened. Magnification and resolving power limit what can be seen. Explain the difference.

quiz 5

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Endoplasmic reticulum
Golgi apparatus
Lysosome
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Endomembrane system
Plasma cell

Which of the following is NOT found as a part of all eukaryotic cells? a. cell wall b. plasma membrane c. ribosomes d. golgi apparatus e. mitochondria Which of the following cell types would have the largest amount of SER? a. liver cells b. intestinal cells c. adipose cells d. sperm e. pancreatic cells You are studying a mutant type of cells in which proteins are synthesized but not sorted and targeted to the proper destination. You hypothesize that this cell has defective: a. Nucleus. b. Lysosomes. c. SER. d. RER. e. Golgi apparatus.

Cell bio chapter 6

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Cells Use molecules to: Transform energy and matter Respond to the environment Reproduce themselves Lowest level that can perform all activities required for life Cell theory Cells are the fundamental units of life All organisms are composed of cells All cells are going to be derived from preexisting cells Are similar in chemical composition Concept 6.1 Microscopes and the Tools of Biochemistry are used to Study Cells Magnification: ratio of image size to real size Resolution: measure of clarity What is the minimum distance required to distinguish two points as separate Light microscopy View living cells Magnify 2000X Resolution: 200nm Electron microscopes View dead cells Magnify 2,000,000X Resolution 0.2 nm Scanning electron microscopy Surface of a specimen (3D)

The Endomembrane system

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The Endomembrane system Organelle recap? Ribosomes Ribosomes: a complex of ribosomal RNA (rRNA, synthesised in the nucleolus) and proteins Ribosomes carry out protein synthesis in: The cystol/plasm (free ribosomes) On the outside of the rough endoplasmic reticulum Free ribosomes make proteins used within the cell e.g. enzymes Bound ribosomes make proteins which are often secreted e.g insulin made in pancreatic cells Endoplasmic reticulum Form Accounts for more than half of the total membrane in many eukaryotic cells The ER membrane is continuous with the nuclear envelope There are two distinct regions of ER: Smooth ER: lacks ribosomes Rough ER: ribosomes are bound to the outer membrane Functions: Smooth endoplasmic reticulum

AP BIO CHP 6 CAMPBELL BIOLOGY 9e

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Human development
Interpersonal relationships
Love
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Campbell's Biology, 9e (Reece et al.) Chapter 6 A Tour of the Cell

A Tour of the Cell

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Human development
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Computer file formats
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Portable Document Format
Technology

Ch. 7 Tour of the Cell 2007-2008 Light Microscope - LM ? Uses visible light ? inexpensive ? live or dead objects ? Resolution: ? As magnification ?, resolution ?. ? ~1000X. ? Limitations: ? many cell structures too small Just magnified 64X Magnification & Resolution Light Microscope Variations ? Unstained ? Stained: ?Methylene blue ? iodine Light Microscope Variations ? Fluorescence: uses dyes to make parts of cells ?glow?. ? Phase-contrast: enhances contrasts in density. ? Confocal: uses lasers and special optics to focus only narrow slides of cells. Electron Microscopes ? Use beams of e- ? Invented in 1939 ? Advantages: ?Much higher mag. ? 50,000X ? Disadvantages: ? Vacuum.

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