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
Kipish [7]
3 years ago
9

Which of the following most specifically explains why relay proteins only bind receptor tyrosine kinases (RTK) after activation?

Biology
1 answer:
anzhelika [568]3 years ago
4 0

Answer:

a

Explanation:

just cause

You might be interested in
In grafting, the plant with the root system is called the , and the portion of the plant with the buds is called the .
RSB [31]
The plant with the root system is called the rootstock


the portion of the plant with the buds is called the scion
7 0
3 years ago
Read 2 more answers
The type of vegetarian who eats vegetables, grains, fruits, eggs, and milk but excludes all other types of animal proteins is ca
Leona [35]
Answer:  "lacto-ovo-vegetarian" .
___________________________________________________
7 0
3 years ago
Which trophic level contains more energy: a trophic level of herbivores or a trophic level of carnivores? Why?
Bas_tet [7]
Hello :)

The answer to your question is a trophic level of carnivores


Only a fraction of the energy available at one trophic level is transferred to the next trophic level.

Since carnivores are above herbivores in the trophic levels, herbivores have more energy than carnivores.

Hope this helps and have a great day!
7 0
3 years ago
Read 2 more answers
What is the shape of an Acid-fast bacteria?
ehidna [41]
Like a rod shaped for Acid fast bacteria
8 0
3 years ago
Identify the way that leptin produced by fat cells of adipose tissue in the abdomen can send a signal to the neuroendocrine cell
Luda [366]

Answer:

Leptin is a protein hormone composed of 167 amino acids of the cytosine family, it is synthesized mainly by white adipose tissue. The leptin receptor is related to that of receptors for cytosines (since it uses Janus or JAK type kinases and STAT-3 proteins as intracellular mediators of transcription pathway), it is predominantly found in the hypothalamus (particularly in the arcuate nucleus and to a lesser extent in the nuclei dorsomedial and ventromedial), hippocampus and cerebellum. There is evidence that leptin acts at the level of the arcuate nucleus, preventing the formation of NPY.

Explanation:

Leptin is produced exclusively in adipose tissue cells in a wide variety of species, including humans, and its concentration is higher in overweight than in lean individuals. The biological actions of leptin can be classified into two groups, those that are exerted in the tissues of the central nervous system, mainly the hypothalamus, and those that are carried out on the peripheral tissues. The former regulate body weight downward, decrease food intake, increase basal energy expenditure and modify some neuroendocrine functions such as reproduction, while the latter have effects on proliferation, differentiation and metabolism of peripheral tissues. The leptin that reaches the hypothalamus, in addition, inhibits protein synthesis and the secretion of neurons producing NPY / AgRP of the arcuate nucleus and stimulates the synthesis and secretion of those containing POMC. NPY (neuropeptide Y) is produced in the hypothalamic arcuate nucleus. This neurotransmitter arrives through the projections of the neurons of said nucleus to the paraventricular nucleus, which is the area where it is released. There are several studies that have shown that an increase in NPY leads to an increase in the sensation of hunger and thus to hyperphagia and obesity. Leptin acts at the level of the arcuate nucleus, preventing the formation of NPY. The leptin receptor lacks enzymatic activity in its intracellular domain. Instead, it is linked to members of the janus kinase family, which belong to a class of tyrosine kinases. The binding of the ligand activates the Jak kinase and leads to the phosphorylation of certain cytoplasmic proteins. Within these proteins there is a class of cytoplasmic transcription factors called signal transducers and activators of transcription (STAT).

5 0
3 years ago
Other questions:
  • Why are organisms classified?
    13·2 answers
  • How does atherosclerosis affect blood pressure?
    8·1 answer
  • A client is hospitalized with posterior nasal bleeding and has a gauze pack in the posterior nasal cavity. the nurse assesses th
    12·1 answer
  • It is unlikely that gene duplication events in the Hox complex played a role in the adaptive radiation of animals. A) The new ge
    13·1 answer
  • What causes cell differentiation during an organism's development?
    14·1 answer
  • True or false.chromatid separet during anaphase<br>​
    10·1 answer
  • Why is it necessarry for DNA to replicate itself?
    11·2 answers
  • Describe how you could use the emulsion test to show the presence of oil in a sample of fish
    14·1 answer
  • A clownfish attracts prey to an anemone while the anemone provides
    7·1 answer
  • Which of the following non-science subjects is often necessary to prepare for a career in science?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!