BCS 110 Test 1 | UPDATED Questions with 100% Verified Answers
Question:
Ions
Answer:
Electrically charged chemicals in the body
Question:
Semi-Permeable Membrane
Answer:
Nerve cells use them to allow some ions to pass and block others.
Question:
Resting Potential (Resting Charge)
Answer:
-70 millivolts: This means the inside has 70 mV more negative charge than the outside.
Question:
Concentration Gradient
Answer:
Probability that ions will move to areas of lower concentration
Question:
Electrostatic Pressure
Answer:
Acts to redistribute like charges in any one area so the positive and negative charges
move apart (opposites attract and like charges repel)
Question:
Membrane Permeability
Answer:
Ions can pass through the ion channels. At rest, there is no passage of proteins. There is
high resistance to Na+ and slight resistance to K+ and Cl-
Question:
Ions
Answer:
Electrically charged chemicals in the body
Question:
Semi-Permeable Membrane
Answer:
Nerve cells use them to allow some ions to pass and block others.
Question:
Resting Potential (Resting Charge)
Answer:
-70 millivolts: This means the inside has 70 mV more negative charge than the outside.
Question:
Concentration Gradient
Answer:
Probability that ions will move to areas of lower concentration
Question:
Electrostatic Pressure
Answer:
Acts to redistribute like charges in any one area so the positive and negative charges
move apart (opposites attract and like charges repel)
Question:
Membrane Permeability
Answer:
Ions can pass through the ion channels. At rest, there is no passage of proteins. There is
high resistance to Na+ and slight resistance to K+ and Cl-
