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Review #1 - Pearland ISD
Review #1 - Pearland ISD

... PRODUCTS (LIKE PROTEINS [RER], LIPIDS [SER], CALCIUM ...
Osmosis and Diffusion
Osmosis and Diffusion

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THE CELL THEORY A. All living organisms are made up of one or

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Cell Structure - Red Hook Central Schools
Cell Structure - Red Hook Central Schools

... Ribosome – the site where amino acids are hooked together to make proteins This is the site of Protein Synthesis ...
Cell Structure - Red Hook Central Schools
Cell Structure - Red Hook Central Schools

... Ribosome – the site where amino acids are hooked together to make proteins This is the site of Protein Synthesis ...
Adv Biology
Adv Biology

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... Ribosome – the site where amino acids are hooked together to make proteins This is the site of Protein Synthesis ...
Name: Period________ General Biology First Semester Study
Name: Period________ General Biology First Semester Study

... 56. Complete the following table on the three types of solutions. Type of More water More solute Direction water solution outside or outside or moves inside cell inside cell Hypertonic Hypotonic Isotonic ...
Kingdoms Handout
Kingdoms Handout

... Cells have a nucleus (eukaryotic) Live in wet places Protozoa, a group of protists, were once thought to be animals since they can move, have cell membranes, and are heterotrophs. Examples include amoeba, paramecium, plasmodium, and cilliates Diatoms have hard shells made of silica (silica is also u ...
Chap 03 Study Outline
Chap 03 Study Outline

... Movements Through Cell Membranes: The cell membrane controls what substances pass through it. Passive Transport: Mechanisms of movement across the membrane may be passive, requiring no energy from the cell (diffusion, facilitated diffusion, osmosis, and filtration). Is a cell required for these mec ...
Cell Organelles Chapter 3
Cell Organelles Chapter 3

... = the energy release transforms the shape of the protein SECONDARY ACT TNSPT = does not use ATP directly = the ACTIVE transport of one solute CREATES A GRADIENT that may be used to move a second solute If it moves in the same directly it’s SYMPORT If moving in both directions, it’s ANTIPORT VESICULA ...
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• The Neuronal Membrane at Rest • The cast of chemicals • The

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CELL RESPIRATION: uses GLUCOSE to produce energy (ATP)
CELL RESPIRATION: uses GLUCOSE to produce energy (ATP)

... 1. Cells are the basic unit of FUNCTION of all living things. 2. Cells are the basic unit of STRUCTURE of all living things. 3. All cells come from preexisting cells.  Exceptions: viruses are not made up of cells (only a protein coat and DNA) BUT they act like living things CELL ORGANELLES  In bot ...
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Ch 7 Cell Structure and Function
Ch 7 Cell Structure and Function

... The entire cell is surrounded by a thin membrane called the Cell Membrane If the nucleus is surrounded by a membrane then the cell is from a Eukaryote If the nucleus is not membrane bound then it is from a prokaryote ...
Exporter la page en pdf
Exporter la page en pdf

... Centrosome amplification has severe consequences during development and is thought to contribute to a variety of diseases such as cancer and microcephaly. However, the adverse effects of centrosome amplification in epithelia are still not known. Here, we investigate the consequences of centrosome ampli ...
Chapter 10 Cell Growth and Division How Surface
Chapter 10 Cell Growth and Division How Surface

... • Nutrients _______ into cell and wastes diffuse out • ____________ must allow sufficient exchange to support the cell Factors that influence rate of diffusion: • The rate of diffusion depends on the concentration difference across the  two sides of the membrane. • The rate depends on the permeabili ...
HB Unit 2 Cell Structure and Function
HB Unit 2 Cell Structure and Function

... Cytoskeleton: protein fibers that help cells move and maintain their shape. • cilia and flagella: hairlike structures that extend from cell surface; aid in movement. • centrioles: microtubules in animal cells, play role in cell ...
PowerPoint
PowerPoint

... • Osmosis is diffusion through a selective permeable membrane in which some materials can diffuse while others can’t © 2004 Delmar Learning, a Division of Thomson Learning, Inc. ...
Gametogenesis, Fertilization and Blastula Formation
Gametogenesis, Fertilization and Blastula Formation

... For each cell that enters meiosis, 4 sperm cells are produced It is continuous for the reproductive life of a male and occurs in an uninterrupted sequence Sperm structure Head: contains the haploid nucleus and an acrosome—vesicle containing enzymes Middle piece: contains a long, spiral shaped mi ...
The Cell Membrane
The Cell Membrane

... They extend across the entire cell. Others extend only to the inside or only to the exterior surface ...
Nucleoid region Prokaryotic cell Nucleus
Nucleoid region Prokaryotic cell Nucleus

... [why don’t cells get HUGE? Like as big as a potato?] A. [As cells grow, the surface area expands larger than the volume does. ] B. [As cells grow the volume expands larger than the surface area does.] C. [As cells grow, it becomes more difficult for diffusion to take place because the surface area ...
1.2 microscopes and cell parts
1.2 microscopes and cell parts

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Cell Structure
Cell Structure

... 1. Describe the importance of surfacearea-to volume ratio of a cell.  2. How are Prokaryotic & Eukaryotic Cells similar? Different?  3. Describe the function of 2 cell membrane proteins.  4. What does the cell theory state?  5. What does the term “selectively permeable” mean in regards to a cell ...
Ch 7 Powerpoint Review
Ch 7 Powerpoint Review

... C. number of molecules contains 6.02 X 10 -12 molecules. D. number of atoms E. volume Campbell Self quiz ...
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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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