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PSIO 201 Exam- |Questions with 100% Correct with Solutions
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PSIO 201 Exam- |Questions with 100% Correct with Solutions
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PSIO 201 Exam- |Questions with 100%Correct with Solutions
Active Transport - ANSWER substances move AGAINST their concentration gradient (low to
high concentration) using ATP
Primary Active Transport - ANSWER uses ATP
always pumping Na+ out and K+ in
3 Na out, 2 K in
Secondary Active Transport - ANSWER uses ion gradients (not ATP directly)
energy stored in the Na+ or H+ gradient is used to move other substances against their
concentration gradients
Bulk Transport - ANSWER transport in vesicles
endocytosis- transport into cell
exocytosis- transport out of cell
transcytosis- transport from outside of cell to inside of cell, back outside of cell
Cytoskeleton - ANSWER Microfilaments, Intermediate Filaments, Microtubules
Microfilaments - ANSWER strands of proteins (actin)
influence of cell motility and shape
, Intermediate Filaments - ANSWER keratins
structural stability
Microtubules - ANSWER strands of tubulin
influence cell structures & shape
motility and movement
Non-Membranous Organelles - ANSWER Centrioles/ centrosomes (cell motility/ cell division)
Cilia/Flagella (cell motility--Microtubules)
Microvilli (increase surface area of plasma membrane--microfilaments)
Ribosomes (site of protein synthesis)
Glycolysis - ANSWER anaerobic (no oxygen required) produces ATP
occurs in cytoplasm
Membranous Organelles - ANSWER Endoplasmic Reticulum
Nucleus
Mitochondria
Golgi Apparatis
Lysosomes
Peroxisomes
Mitochondria - ANSWER Oxidative Phosphorylation-- most efficient way to form ATP
consumes O2
produces CO2
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