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Human Anatomy

The Cell

QuestionAnswer
Cells do what? Very in size Possess distinctive shapes Measured in micrometers
What is Selective permeability has a Phospholipid bilayer and Cholesterol? cell membrane
Selective permeability? Decides what goes in and out
Phospholipid bilayer? Water soluble heads (hydrophilic) Water insoluble tails (hydrophobic)
Cholesterol? Stabilizes the membrane
What do proteins do on the surface of the cell? (7) Integral vs. peripheral functions receptors pores links channels carriers enzymes
holds the DNA in a cell? Nucleus
usually on per cell? control center
Separates nucleoplasm from cytoplasm? Nuclear envelope
dense collection of RNA and proteins site of ribosome production? Nucleolus
A long strand of DNA its associated proteins Organizes and folds molecule to conserve space? Chromatin
A strand of DNA quilt around a group of histone proteins Reduces length of strand by about one third? Nucleosome
Three Organelles? Celia, flagella, Vesicles
Long slender plasma membrane extensions Common in respiratory and reproductive tracts? Cilia
Tail for movement in humans will only be found on sperm? Flagella
Packages formed by the membrane of other organelles or the cell membrane? VESICLES
Rough ER Fixed attached to endoplasmic reticulum Scattered in cytoplasm Function protein synthesis? Ribosomes
Inner membrane contains metabolic enzymes Function: Production of 95% of cellular ATP (Cellular respiration) Mitochondria
Vesicles containing digestive enzymes relatively large function: removal of damaged organelle cells or pathogens Lysosome
Vesicles containing oxidative enzymes relatively small function: Catabolism of fats neutralization of toxic compounds particularly hydrogen peroxide? Peroxisome
Synthesis of phospholipids, cholesterol, steroid hormones, glacier rides, storage of glycogen? Smooth SER and the Endoplasmic reticulum has two. this and rough RER
Has attached FIXED ribosomes Modification of newly synthesized proteins Export of Golgi apparatus? Rough RER
Storage and alteration synthesized products Modification of proteins Packaging of proteins in vesicles? Golgi apparatus
Membrane extensions containing microfilaments Function: Increase surface area for absorption? Villi and Microvilli
Fine protein Filaments or tubules Function: Strength And support Intracellular movement Mitosis? Cytoskeletal
Created by: hw0993422
 

 



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