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Kingdoms
Kingdoms

... domain Archaea; live in harsh environments 1) prokaryote 2) cell walls without peptidoglycan 3) unicellular 4) autotroph or heterotroph ...
Structure and Function of Cell complete
Structure and Function of Cell complete

... Why are Cell So Small? • Most cells are too small to be seen without a microscope. It would take 50 human cells to cover the dot on this letter “i”. • Cells take in food and get rid of waste through their cell membrane. • If cells grew larger they would need more food and produce more waste. ...
The Cell - Studyclix
The Cell - Studyclix

... surfaces and reveals 3D structures. • It has less detail than a TEM but can be used on slightly larger specimens ...
chapt03_Notes Blank
chapt03_Notes Blank

... • major parts • nucleus • cytoplasm • cell membrane ...
Cell Structure
Cell Structure

... • Rigid and rather permeable • Made of cellulose • Usually modified by lignin • with pores which are penetrated by plasmmodesmata ...
Useful fundamental numbers in molecular biology The numbers
Useful fundamental numbers in molecular biology The numbers

... 1 mM~ 1000 molecules/bacterial (e.coli) cell; 2,000,000 molecules/mammalian (HELA) cell. Characteristic concentration for a signaling protein ~10 nM-1mM Water content: ~50-70% of cell. General elemental composition dry mass: C:H1.77:O0.49:N0.24 Composition of dry weight of an e.coli: ~55% protein, 2 ...
Cells and Their Organelles The cell is the basic unit of life. The
Cells and Their Organelles The cell is the basic unit of life. The

... Chloroplasts are elongated or disc-shaped organelles containing chlorophyll that trap sunlight for energy. Photosynthesis (in which energy from sunlight is converted into chemical energy - food) takes place in the chloroplasts. Only plant cells, not animal cells, can make their own food. Color and l ...
Cell organelle Notes - Warren County Schools
Cell organelle Notes - Warren County Schools

... Chloroplasts are elongated or disc-shaped organelles containing chlorophyll that trap sunlight for energy. Photosynthesis (in which energy from sunlight is converted into chemical energy - food) takes place in the chloroplasts. Only plant cells, not animal cells, can make ...
Overview of Cells
Overview of Cells

... All bacteria Most have cell wall ...
Tonicity
Tonicity

... Tonicity is a measure of effective osmolarity or effective osmolarity in cell biology. Osmolarity and osmolarity are properties of a particular solution, independent of any membrane. Tonicity is a property of a solution in reference to a particular membrane, and is equal to the sum of the concentrat ...
Cells and Their Organelles
Cells and Their Organelles

... chlorophyll that trap sunlight for energy. Photosynthesis (in which energy from sunlight is converted into chemical energy - food) takes place in the chloroplasts. Only plant cells, not animal cells, can make their own food. Color and label the chloroplasts dark green. Cells also contain fluid-fille ...
Science Menu: Cells
Science Menu: Cells

... of paper with things glued on it. Make sure to include all the main structures of the cell and the function of each. You will need to use materials you have at home or materials found in the classroom. All parts must be labeled clearly in order to receive credit. Your representation of the organelle ...
Standard B-2
Standard B-2

... ○ Endoplasmic reticulum (ER) transports materials throughout the inside of a cell.  Rough ER has ribosomes attached to the surface; smooth ER has no ribosomes o Golgi apparatus modifies, collects, packages, and distributes molecules (especially proteins) within the cell or outside the cell. o Cilia ...
The Cell Theory
The Cell Theory

... 1. Location: In the ________________________________ of the cell. Common in _____________________________ cells but not in _____________________________________________________________ cells. 2. Description: Small, ________________________________________________organelles filled with _____________ ...
Study guide for Quiz # 1
Study guide for Quiz # 1

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Document
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... Any agent that causes disease is called a(n) ______________________. Viruses cause damage when they reproduce inside cells many times. When the viruses break out, the cell is destroyed. The protein coat, or __________________, of a virus may contain RNA or DNA, but not both. Many viruses have a(n) _ ...
Conestoga High School Honors Biology – Midterm Exam 2010-2011
Conestoga High School Honors Biology – Midterm Exam 2010-2011

... Any agent that causes disease is called a(n) ______________________. Viruses cause damage when they reproduce inside cells many times. When the viruses break out, the cell is destroyed. The protein coat, or __________________, of a virus may contain RNA or DNA, but not both. Many viruses have a(n) _ ...
Chapter 4 – Functional Anatomy of Prokaryotic and Eukaryotic Cells
Chapter 4 – Functional Anatomy of Prokaryotic and Eukaryotic Cells

... Chapter 4 – Functional Anatomy of Prokaryotic and Eukaryotic Cells Comparing prokaryotic and eukaryotic cells: Overview • Prokaryotic and Eukaryotic cells are chemically similar o Contain nucleic acids, proteins, lipids, carbohydrates o Same kinds of chemical reactions • Differences are primarily in ...
Name:
Name:

... 23. Why is the plasma membrane referred to as the “fluid mosaic model?” 24. What is diffusion? (Give an example of where it occurs in the body) 25. What does dynamic equilibrium refer to? 26. What is osmosis? (Give an example of where it occurs in the body) 27. Describe passive transport. 28. Descri ...
Cell Transport Powerpoint - Mater Academy Lakes High School
Cell Transport Powerpoint - Mater Academy Lakes High School

... molecules like glucose through the cell membrane – larger molecules must be “helped” Proteins in the cell membrane form channels for large molecules to pass through Proteins that form channels (pores) are called protein channels ...
Cell Transport Powerpoint
Cell Transport Powerpoint

... molecules like glucose through the cell membrane – larger molecules must be “helped” Proteins in the cell membrane form channels for large molecules to pass through Proteins that form channels (pores) are called protein channels ...
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... Organelles found in both Plant & Animal ...
Cell Membrane Tutorial
Cell Membrane Tutorial

... 8. The cell membrane is said to be selectively permeable. What does this mean? (You may need to use additional resources to determine the answer to this question.) ...
3.1.3 Ultrastructure of a Cell
3.1.3 Ultrastructure of a Cell

... L.O: To label the organelles found in a eukaryotic cell To describe the function of each organelle Starter: Spot the Difference! In pairs, look for the differences between the two cells below: ...
CELL TRANSPORT WORKSHEET
CELL TRANSPORT WORKSHEET

... 6. A cell moves particles from a region of lesser concentration to a region of greater concentration by facilitated diffusion osmosis passive transport active transport 7. Energy for active transport comes from ...
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Cell wall



The cell wall is a tough, flexible and sometimes rigid layer that surrounds some types of cells. It surrounds the cell membrane and provides these cells with structural support and protection. In addition, the cell wall acts as a filtering mechanism. A major function of the cell wall is to act as a pressure vessel, preventing over-expansion when water enters the cell. Cell walls are found in plants, fungi and prokaryotic cells but not in mycoplasmas.The composition of the cell wall varies between species and may depend on cell type and developmental stage. The primary cell wall of land plants is composed of the polysaccharides cellulose, hemicellulose and pectin. In bacteria, peptidoglycan forms the cell wall. Archaean cell walls have various compositions, and may be formed of glycoprotein S-layers, pseudopeptidoglycan, or polysaccharides. Fungi possess cell walls made of the glucosamine polymer chitin, and algae typically possess walls made of glycoproteins and polysaccharides. Unusually, diatoms have a cell wall composed of biogenic silica. Often, other accessory molecules are found anchored to the cell wall.
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