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Chapters 1-5

QuestionAnswer
Mitochondria "powerhouse" provides energy needed by the cell to carry on day-to-day functioning, growth, and repair
4 major principal tissue types: epithelial, connective, muscle, and nervous
2 major portions of body axial (head, neck and torso), appendicular (upper and lower extremities and their connections to the axial portion)
Homeostasis relatively constant states maintained by the body
Intracellular Control - regulation within cells - genes or enzymes can regulate cell procesees
Intrinsic Control -regulation within tissues or organs - may involve chemical signals -may involve other "built-in" mechanisms
Extrinsic Control -regulation from organ to organ -may involve nerve signals - may involve endocrine signals (hormones)
4 major elements in human body carbon, oxygen, hydrogen, and nitrogen
Octet rule atoms with fewer or more than 8 electrons in other energy level will attempt to lose, gain or share electrons
Covalent Bonds formed by sharing of electorn pairs
Monosaccharieds simple sugars
Disaccharides / Polysaccharides two or more simple sugars bonded through dehydration synthesis
Lipids water insoluble
phospholipids lipid compounds similar to triglycerides - 1 end water soluble (hydrophilic) other end is lipid soluble (hydrophobic)
DNA Base Pairs A-T -- adenine - thymine G-C -- guanine - cytosine
Cell Structures Plasma membrane, cytoplasm, nucleus
Rough endoplasmic reticulum ribosomes do the outer surface of the membranous walls ribosomes synthesize protiens
Smooth endoplasmic reticulum no ribosomes border the membranous walss
Ribosomes make proteins
Golgi apparatus processes protein molecules
Cytoskeleton -made of tiny, flexible fibers and rigid, rodlike pieces - provides support for cell shape
Gap-Junctions membrane channels of adjacent plasma membranes that adhere to each other
Tight-Junctions occur in cells that are joined by "collars" of tightly fused material
Created by: user-1990996
 

 



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