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Bio Unit 5

Homeostasis & Cell Transportation

QuestionAnswer
Which component of plasma membrane contains hydrophilic phosphate heads and long chains of carbons and hydrogen? Phospholipid Bilayer
Which component of the plasma membrane is the primary barrier and regulates what enters and leaves the cell? Phospholipid Bilayer
What is the function of proteins embedded in the phospholipid bilayer of the plasma membrane? Allows passage of particles
What is the term for the movement of water across the plasma membrane? Osmosis
Which molecules can easily pass through the plasma membrane without the use of ATP or a protein? CO2 + O2
Which essential molecules required for cellular respiration need a protein to enter or leave the cell? Glucose
Does passive transport require ATP? NO
Does active transport require ATP? YES
How does the mitocondria facilitate the movement of molecules across the plasma membrane? Supplies energy (ATP)
What is the term for bulk transport of substances OUT of the cell? EXOcytosis
What is the term for bulk transportation INTO the cell? ENDOcytosis
How are all membrane proteins similar? Allows the flow of molecules
Endocytosis and exocytosis require the formation of what cell structure to transport materials into and out of the cell? Vesicle
What homeostasis mechanism helps organisms maintain a stable temperature in low environmental temperatures? Shivering
What homeostasis mechanism helps organisms maintain a stable temperature in high environmental temperatures? Sweating
What is the term for the maintenance of stable internal environments such as temperature and blood pH? Homeostasis
Does sweating regulate water levels in the body? No
Created by: MakaylaSchuibbeo
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