Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

10 Cards in this Set

  • Front
  • Back
Explain the term equilibrium
Equilibrium is the state at which the concentration of a substance is the same throughout a space.
Explain the differences between isotonic, hypertonic and hypotonic solutions.
isotonic has an equal amount of solute in the cell as in the environment
hypertonic has a greater amount of solute in environment than in the cell
hypotonic has a greater amount of solute in the cell than the environment
What would happen if you put a frog cell in salt water?
The egg will loose water and will shrivel up.
Explain pinocytosis
It is "cell drinking". The cell will bring fluid into the cell through the cell membrane.
Explain how the Na+/K+ pump allows the glucose to be brought into the cell.
The Na+/K+ pump pumps 3 Na+ out of the cell for every 2 K+ in creating a concentration gradient of Na+ across the membrane. Na+ will then diffuse across the membrane with glucose back into the cell through coupled channels.
What type of a receptor is triggered by a ligand binding?
A chemically gated channel.
Which neurotransmitter stimulates muscle cells to contract?
How are voltage gated channels triggered?
By a positive change in voltage in the area of the channel.
What is the function of the proton pump?
It actively pumps H+ across the membrance into the cell creating a concentration gradient. The H+ will then diffuse to the exterior of the cell. The movement of H+ across the membrane to the exterior of the cell causes the conversion of ADP --> ATP
Describe exocytosis.
It is the binding of waste vacuoles to the cellular membrane for the release of waste from the interior of the cell into the interior.