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
Scrat [10]
3 years ago
13

A — is a protein that recognizes and responds to a signal

Biology
1 answer:
Norma-Jean [14]3 years ago
3 0

Answer:

A <u><em>receptor</em></u> is a protein that recognizes and responds to a signal.

Explanation:

A receptor is a protein molecule present on the cells on which the signalling molecules can bind and generate a physiological response. Some receptor molecules can also respond to Sun and light. Each type of cell has specific receptors molecules and hence can respond to specific signals. The receptor molecules hence tend to receive signals for a cell. Molecules such as hormones bind to the receptors.

You might be interested in
What the process and energy needed?
leva [86]

Answer:

C. Diffusion and no energy needed.

Explanation:

A - Passive transport doesn't require energy.

B - Osmosis would be if the 25% H2O went into the 82%

D - Active transport doesn't apply because molecules aren't moving across into a higher concentration.

Diffusion is when parts of the 82% go into the 25%.

6 0
3 years ago
Blood pressure drives the first step in urine formation, called _____________________.
Aliun [14]

Answer:

c. glomerular filtration

3 0
2 years ago
There are the same amount of carbon atoms on Earth now as there were in the past, but there are more in the atmosphere ever befo
kupik [55]

The global average atmospheric carbon dioxide in 2019 was 409.8 parts per million (ppm for short), with a range of uncertainty of plus or minus 0.1 ppm. Carbon dioxide levels today are higher than at any point in at least the past 800,000 years.The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change.

3 0
3 years ago
What color is produced upon the addition of methyl red indicator to a culture of a Gram negative bacilli in MR-VP broth if the o
Leni [432]

Bright cherry red color is produced upon the addition of methyl red indicator to a culture of a Gram negative bacilli in MR-VP broth if the organism used the mixed acid pathway of fermentation.

What is MR-VP test?

  • As part of the IMViC testing, Methyl Red (MR) and Voges-Proskauer (VP) broth is utilized as the medium in which both the Methyl Red and Voges-Prosakuer tests can be conducted.
  • It is a straightforward broth made up of dextrose or glucose, buffers, and peptone.
  • In the Methyl Red test, an infected tube of MR-VP broth is mixed with the pH indicator methyl red.
  • The acids will overwhelm the buffers in the medium and create an acidic environment if the organism employs the mixed acid fermentation pathway and creates stable acidic end products.
  • If acidic end products are present when methyl red is introduced, the methyl red will remain red.

Learn more about the MR-VP test with the help of the given link:

brainly.com/question/27962086

#SPJ4

5 0
1 year ago
Which of the following is an example of a nonpoint source of freshwater pollution?
tekilochka [14]
The example of a nonpoint source of freshwater is the first option: <span>pesticide runoff from farm fields. This is one of the most common nonpoint source of poullution</span>
5 0
3 years ago
Other questions:
  • During dna replication, each strand serves as a _____________ for the new ________________ strand..
    10·1 answer
  • Sexual reproduction leads to offspring that are all genetically different from one another and from either parent. what are the
    8·1 answer
  • Why is fermentation such an important process in cells?
    15·2 answers
  • A biologist studying alpine wildflowers notices that two populations of similar species are able to occupy the same niches. Howe
    7·2 answers
  • In a biological membrane, the phospholipids are arranged with the fatty acid chains facing the interior of the membrane. as a re
    11·1 answer
  • Identify the low-pressure areas on the map.<br>​
    10·1 answer
  • Plant and Animal Cells<br> What is the name of this organelle?
    7·1 answer
  • A population of mosquitoes is exposed to the pesticide DDT for several generations. At the end of that time, most individuals in
    15·1 answer
  • Describe the contributions made by James Watson and Francis Crick and Rosalind Franklin and Maurice Wilkins to the discovery of
    7·1 answer
  • A protist is an organism with eukaryotic cells that is not a(n) ___________, ______________, or ____________.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!