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Endoplasmic reticulum

Campbell's Biology 9 Edition Unit 2 Outline

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Biology
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Cell Biology
Cytoskeleton
organelles
cell
Endoplasmic reticulum
Tonicity
Microtubule
Cytoplasm
Water potential
Intracellular transport

Unit 2 Info Be aware of support structures in cytoskeleton Microtubules Act as transport feature as well Easily broken down and reformed Microfilaments: Circulation of cytoplasm Intermedia filaments support for cytoskeleton Any shape change involves cytoskeleton All three assist in the change in shape Water potential Depends on solute concentration and pressure Presence of solutes makes water potential lower Pressure can set the potential to zero evening everything out Hypotonic Hypertonic Cis receives the contents in the Golgi Trans transports the contents in the Golgi Rough ER has ribosomes so they construct proteins Smooth ER is making complex carbs and lipids Hormones are made of lipids

Campbell's Biology 9 Edition Chapter 6 Outline

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Biology
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organelles
Membrane biology
Cell Biology
Cell membrane
cell
Endoplasmic reticulum
Cytoskeleton
Lysosome
Eukaryote
Endomembrane system
Outline of cell biology

Ch. 6 AP Bio Lecture Date Notes Questions 9/29 Multicellular organisms, many cell types, specialized tasks Single cell, singular task done for survival Body is like ecosystem 80% cells are microbes that live in gut Signaling is essential for multicellular organisms Big Brain Theory ? Mutations made so many times that the cells could send signals in so many different ways White Blood Cells stick to walls of Arteries Tumble of surface while red blood cells move as fluids. White Blood Cells Like Velcro Signals change that, proteins that make them less sticky so that they can move to areas where there is damage or stickiness when not being used. Done so that signals are efficiently received. Microtubules contribute to the cytoskeleton

Endomembrane System

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Biology
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organelles
Endomembrane system
Endoplasmic reticulum
Golgi apparatus
Vesicle
Endoplasm
cell
Lysosome
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.

Raven Biology Chapter 4 Notes

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Biology
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organelles
cell
Outline of cell biology
Eukaryote
Endoplasmic reticulum
plant cell
Vesicle
Lysosome
Symbiogenesis
Vacuole
Cytoskeleton
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:

Campbell9thEdChapter6Tour of the Cell

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Biology
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organelles
cell
Cytoskeleton
Eukaryote
Microtubule
Endomembrane system
Outline of cell biology
Endoplasmic reticulum
Actin
mitochondrion
plant cell
Biological membrane

A Tour of the Cell Chapter 6 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 ? 2011 Pearson Education, Inc. Figure 6.1 Concept 6.1: Biologists use microscopes and the tools of biochemistry to study cells Though usually too small to be seen by the unaided eye, cells can be complex ? 2011 Pearson Education, Inc. Microscopy Scientists use microscopes to visualize cells too small to see with the naked eye In a light microscope (LM), visible light is passed through a specimen and then through glass lenses Lenses refract (bend) the light, so that the image is magnified

AP Bio Chp 6

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Biology
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organelles
cell
Endomembrane system
Cytoskeleton
Endoplasmic reticulum
Ribosome
Eukaryote
plant cell
mitochondrion
Cytoplasm
Golgi apparatus
Vesicle

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 6

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Biology
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organelles
Protein targeting
mitochondrion
cell
Endoplasmic reticulum
Ribosome
Chloroplast
Peroxisome
Eukaryote
Genome

Which of the following organelles is incorrectly matched with its function? a. mitochondria : ATP production b. SER : detoxification of drugs and poisons c. lysosome : digestion d. gap junctions : cell communication e. microfilaments and flagella motion Which of the following pairs of structures is incorrectly matched? a. mitochondria- thylakoid membranes b. peroxisomes ? hydrogen peroxide c. nucleus - chromatin d. SER- Ca++ storage e. nucleolus ? ribosome components

quiz 5

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Biology
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organelles
cell
Endoplasmic reticulum
Golgi apparatus
Lysosome
Eukaryote
Biological membrane
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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Biology
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Biology
Cell Biology
organelles
Endomembrane system
cell
Endoplasmic reticulum
Vesicle
Lysosome
Ribosome
Golgi apparatus
Cytoskeleton
Cytoplasm
health

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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Biology
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Biology
organelles
Membrane biology
Cell Biology
Endomembrane system
Vesicle
Endoplasmic reticulum
Golgi apparatus
Lysosome
cell
Biological membrane
Eukaryote
health

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

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