1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zaharov [31]
3 years ago
15

Leucine-enkephalin, a pentapeptide, is a naturally occurring pain reliever found in the brain. How many peptide bonds are there

in leucine-enkephalin
Biology
1 answer:
Ksivusya [100]3 years ago
4 0

Answer: Four

Explanation:

The leucine-enkephalin binds to the opioid receptors they function as important signaling molecules in the brain. There are four peptide bonds present in them. These are endogenous ligands which act as neurotransmitters and they have morphine like activity that is they suppress the brain pain receptors and depress the central nervous system and provide relief in pain.

You might be interested in
What is different between the size of an ecosystem and the size of a natural community?
levacccp [35]

Answer: A community is all of the populations of different species that live in the same area and interact with one another. A community is composed of all of the biotic factors of an area. An ecosystem includes the living organisms (all the populations) in an area and the non-living aspects of the environment.

3 0
3 years ago
Read 2 more answers
. What will happen if: a. Ligaments gets over stretched? b. Striated muscles contracts rapidly for longer duration?
Allisa [31]

Answer:

a) This may result in severe pain in the affected part accompanied by swelling

b)If striated muscles contract rapidly for a longer duration, it can cause fatigue, muscle cramps and even loss of energy.

Explanation:

6 0
3 years ago
Organisms that complete the final breakdown and recycling of organic materials from
scoundrel [369]

Answer:

decomposers

Explanation:

These are heterotrophic organisms that feed on dead animals and plants, secretions, or discarded parts of living beings, that is, organic matter.

And they break it down into inorganic.

Thus, inorganic substances that can be reused in the process of photosynthesis are returned, recycled, to nature.

7 0
3 years ago
How does research into natural selection and traits help you understand why some butterflies have coloration that looks like the
QveST [7]

Answer/Explanation:

Natural selection - over time - selects for traits that improve fitness. A butterfly with wing coloration that looks like a hungry owl would certainly be a deterrent to their natural predators, such as smaller birds. This is because the owl is the predator of the smaller birds, and their instinct is to avoid the owl.

If a mutation arose that resulting in coloration that looked like an owl, (or at least slightly menacing) this would be beneficial to the butterfly, as it would be more camouflaged from predators. This means it would be more likely to reach reproductive age and pass the mutation onto its offspring, who would also have a competitive advantage.

Over time, this would lead to a population of butterflies with coloration that looks more and more owl-like .

7 0
3 years ago
When is the sun directly overhead in the continental United States ?
uranmaximum [27]

Answer:

The correct answer would be never due to the tilt of the earth.

8 0
3 years ago
Other questions:
  • Members of Porifera are diploblastic. Which statement clarifies this? A. They are unsegmented. B. They have a true body cavity.
    10·1 answer
  • How does the nervous system help control the activity of the muscular?
    13·1 answer
  • More than thirteen million children around the world die each year of pneumonia, diarrhea, measles, tetanus, whooping cough, and
    6·1 answer
  • According to the text, we might expect to find this egg in which solution just before taking the photograph? A) egg in blue dist
    14·2 answers
  • Select all the answers that apply.
    11·2 answers
  • The digestion of pizza, the light reactions in photosynthesis, and the removal of a stain by laundry detergent all require _____
    15·1 answer
  • Identify the polysaccharide formed from the enzyme insulin as a means to remove glucose from the blood.
    6·1 answer
  • Please help please and thank you
    8·1 answer
  • Choose the correct one, please
    13·1 answer
  • What are macromolecules that contain carbon, hydrogen, oxygen, and nitrogen, needed by the body for growth and repair?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!