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Phosphorylation

quiz 8

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Biology
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Cell Signaling
Cell Biology
Signal transduction
Membrane biology
Protein kinase
G protein
Phosphorylation
Androgen receptor
Receptor
Adenosine triphosphate
Cell surface receptor
Chemokine receptor

A cell lacking glycoproteins on the external surface of its plasma membrane would likely be inefficient in a. transporting ions against a concentration gradient b. cell-cell recognition c. maintaining fluidity of the phospholipid bilayer d. attaching to the cytoskeleton e. establishing the diffusion barrier to charged molecules. White blood cell engulf bacteria through what process? a. exocytosis b. phagocytosis c. pinocytosis d. osmosis e. active transport During signal-transduction Ca++ and cAMP function as a. ligands. b. receptors. c. secondary messengers. d. inhibitors. e. responders

Cellular signaling and the cell membrane

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Biology
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Biology
Cell Biology
Membrane biology
organelles
Cell Signaling
Cell membrane
Signal transduction
Biological membrane
Membrane transport
cell
Passive transport
Phosphorylation
health
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Human behavior
Attachment theory
Evolutionary biology
Personal life
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Chapter 5: Membrane Transport and Cell Signaling Amphiphatic- refers to something that has both hydrophilic and hydrophobic regions the cell membrane proteins Fluidity Low Temperatures-less fluid because the phospholipids pack together tightly Factors that Affect Fluidity: Amount of phospholipids- phospholipids have kinks in the tails due to their hydrogen bonds which make them harder to pack Cholesterol- inhibits the packing of the phospholipid tails at LOW TEMPERATURE. AT HIGH TEMPERATURE, it solidifies the membrane because it inhibits the movement of tails Proteins in the Membrane Intergal-penetrate the membrane, hydrophobic exterior, hydrophilic interior Peripheral-lie on either side of the membrane Major Protein Functions: -Transport-allows materials to diffuse

Chapter 11 Cell Communication

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Biology
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Biology
Cell Signaling
Signal transduction
Cell Biology
Membrane biology
Cell surface receptor
Protein kinase
Second messenger system
Hormone
Receptor
G protein
Phosphorylation
health
AP
campbell
cell communication
overview
summary

Lecture Outline for Campbell/Reece Biology, 7th Edition, ? Pearson Education, Inc. 11-1 Chapter 11 Cell Communication Lecture Outline Overview: The Cellular Internet ? Cell-to-cell communication is absolutely essential for multicellular organisms. ? Cells must communicate to coordinate their activities. ? Communication between cells is also important for many unicellular organisms. ? Biologists have discovered universal mechanisms of cellular regulation involving the same small set of cell-signaling mechanisms. ? The ubiquity of these mechanisms provides additional evidence for the evolutionary relatedness of all life. ? Cells most often communicate by chemical signals, although signals may take other forms.
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