Osmosis

You enter the lab and take your sit next to your lab partner Tom.  Prof. Smith begins the lab practical by asking for the definition of Osmosis. You proudly raise your hand.

You: Osmosis is the movement of water molecules across the plasma membrane of the cell, depending on the solute concentration inside and outside of the cell. It is a passive transport process, just like diffusion. Therefore, water movement is from a high concentration of solute to a low concentration of solute.

Prof. Smith: Well done! The plasma membrane is made up of a phospholipid bilayer with embedded protein which have hydrophobic (water-loving) and hydrophilic (water-hating) sides.

 

           

From: Urry, L. A., Cain, M. L., Wasserman, S. A., Minorsky, P. V., Orr, R. B., & Reece, J. B. (2020). Campbell Biology (12th ed.). Pearson.

What is the main property of a plasma membrane called that facilitates the movement of small molecules or water molecules across the cell?

  • Embedded proteins
  • Fluidity
  • Selective permeability

Map: C3 - CELL STRUCTURE AND FUNCTION SPANISH (982)
Node: 18430
Score:

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  • Surfactant
  • Την αγνοούμε και προχωράμε στο χειρουργείο
  • Στεροειδή - Αντιβιοτικά
  • ΑΠΟΤΕΛΕΣΜΑΤΑ ΒΙΟΧΗΜΙΚΩΝ ΕΞΕΤΑΣΕΩΝ
  • Clonare moleculară
  • Prostaglandin
  • Estará atento em todos os cursos.
  • Δεν κάνει τίποτα κατά τη διάρκεια του καύσωνα
  • Τεστ ιωδίου
  • Intravenous dexamethasone
  • He doesn't pay attention during the other courses and makes fun with his friends.
  • Mitosis
  • Măsuri de siguranță în laborator
  • Προεγχειρητική αντιβιοτική αγωγή και διενέργεια χειρουργείου μετά την αρνητικοποίηση της καλλιέργειας
  • Προτείνεις να μαζέψουμε χρήματα.
  • Στην πρώτη συνεδρια
  • Mature oak tree leaves
  • Τεστ Σουδάν ΙΙΙ
  • ΑΙΜΟΛΗΨΙΑ
  • Mitoza
  • Κλινική εξέταση.
  • Un microscop care folosește o sursă de lumină pentru a mări obiectele
  • Sinteza proteinelor
  • ΚΛΙΝΙΚΗ ΕΞΕΤΑΣΗ
  • Chest radiograph
  • Patient does not come for follow up visit
  • A microscope that uses light source to magnify objects
  • Επιφανειοδραστικός παράγοντας - Φουροσεμίδη
  • Ibuprofen
  • Un microscop care folosește o sursă de fluorescență pentru a mări obiectele
  • Pipettes
  • Sudan III Test
  • Diffusion
  • Παραλείπει κάποιες ημέρες τη φαρμακευτική αγωγή
  • Definition 1
  • Επιλέγει το κολύμπι
  • Προτείνεις να δουλέψουμε μαζί τους στο νοσοκομείο.
  • Call an ambulance
  • Treatment
  • Αιματολογικό/Βιοχημικό εργαστηριακό έλεγχο
  • Steroids-Echocardiogram
  • Osmosis

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