« previous next »

Author Question: Following release from the presynaptic cell, neuropeptides a. cannot be deactivated by enzymes, ... (Read 58 times)

ENagel

  • Hero Member
  • *****
  • Posts: 540
on: Jun 21, 2018
Following release from the presynaptic cell, neuropeptides
 
  a. cannot be deactivated by enzymes, whereas small-molecule transmitters diffuse away or are deactivated by reuptake.
  b. are deactivated by reuptake, whereas small-molecule transmitters diffuse away or are deactivated by enzymes.
  c. can diffuse away from synapses, whereas small-molecule transmitters are deactivated by reuptake.
 d. and small-molecule transmitters can be deactivated by diffusion, enzymes, or reuptake.

Question 2

The release of vesicles containing neuropeptides requires
 
  a. higher levels of calcium than the release of small-molecule neurotransmitters.
 b. lower levels of calcium than the release of small-molecule neurotransmitters.
 c. approximately equal levels of calcium as the release of small-molecule neurotransmitters.
  d. no calcium at all.


leannegxo

  • Sr. Member
  • ****
  • Posts: 374
Reply #1 on: Jun 21, 2018
Answer to Question 1

c

Answer to Question 2

a


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

The cell cycle and checkpoints The cell cycle and checkpoints
Naive B Cell Naive B Cell
Release of Acetylcholine During the Sleep–Waking Cycle Release of Acetylcholine During the Sleep–Waking Cycle
Activity of a Hippocampal Place Cell Activity of a Hippocampal Place Cell
Cell Biology Vector Icon Cell Biology Vector Icon
Structure of a typical cell membrane Structure of a typical cell membrane
Video: Bone tissue types - compact and spongy

For a complete list of videos, visit our video library