Wiley Plus Exam 1 Questions And Answers 2024

Wiley Plus Exam 1 Questions And Answers 2024 The differences in electrical charges on either side of the cell membrane results in what is referred to as ______ - answermembrane potential The type of channel that only opens when neurotransmitter attaches to its associated receptor is known as a ________ - answerchemically-gated channel. When the cell membrane has an accumulation of positive charges on the outside and negative charges on the inside it is considered to be polarized.(T/F) - answerTrue When the cell membrane has an accumulation of positive charges on the outside and negative charges on the inside it is considered to be polarized. - answervoltage-gated channels open. Resting membrane potential is maintained by - answerleak channels and sodium-Potassium pumps. What results in the depolarization of the cell membrane? - answerVoltage-gated sodium channels open allowing sodium ions to enter the cell to cancel negative charges on the inside of the membrane. What ion must flow into the presynaptic cell in order for it to release neurotransmitter? - answerCalcium How does a neurotransmitter signal the post-synaptic cell to respond? - answerIt binds to receptors on the post synaptic cell membrane. Once neurotransmitters are released, they do not remain in the synapse. What happens to them? - answerSome are degraded by enzymes while some are transported back into the presynaptic cell. A protein transporter which moves two substances by secondary active transport in the same direction is known as a __________ - answersymporter Both charged, polar, and uncharged, non-polar, substances can pass uninhibited through the cell membrane from higher concentration to lower concentration. (T/F) - answerFalse