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
Anit [1.1K]
2 years ago
10

When translating secretory or membrane proteins, ribosomes are directed to the ERmembrane byA) a specific characteristic of the

ribosome itself, which distinguishes free ribosomes from boundribosomes.B) a signal-recognition particle that brings ribosomes to a receptor protein in the ER membrane.C) moving through a specialized channel of the nucleus.D) a chemical signal given off by the ER.E) a signal sequence of RNA that precedes the start codon of the message.B
Biology
1 answer:
Yuliya22 [10]2 years ago
6 0

Answer:

B) a signal-recognition particle that brings ribosomes to a receptor protein in the ER membrane.

Explanation:

Each synthesized protein has to be targeted to the specific location and transported to that location. There are two possible ways for that transport: post-translational transport or co-translational transport.

• Co-translational transport occurs during the process of translation, and proteins transported this way are proteins bound for organelles in the endomembrane system (such as the ER, Golgi apparatus, and lysosome), plasma membrane proteins or proteins for the exterior of the cell. They have an amino sequence called a signal peptide which sends them to ER first.

• Proteins that do not have a signal peptide stay in the cytosol so, their transport is after the translation (post-translational).

You might be interested in
In what ways can overpopulation be beneficial to differential reproductive success?
Reika [66]

Answer:

Differential reproduction is called the one that occurs as a result of the differences between the individuals that make up a society or sample, where it is those with comparative advantages who manage to reproduce, while those who do not have said advantages tend to die out. It is, in short, a practical application of Charles Darwin's theory of natural selection.

Thus, if there is an overpopulation of a certain species, a series of effects will occur (such as the scarcity of resources, the lack of living space, etc.) that will tend to gradually decrease the population to return to an ideal number of individuals. In this aspect, differential reproduction will be applied, being able to reproduce those that have comparative advantages over the rest, which will inevitably become extinct.

7 0
2 years ago
Are virus considered liveing organisms
Elena L [17]
Viruses are not considered alive, because they lack certain aspects that would be considered a living organism.
8 0
3 years ago
A current challenge for doctors involves the bacterial strain Clostridioides difficile, which no longer responds to traditional
yawa3891 [41]

Answer:

C. The bacteria have high genetic variability and high reproductive rates.

5 0
2 years ago
In the 1600s, which scientist discovered microbes in pond water by using a microscope
Nikitich [7]
It was Robert Hooke.
7 0
3 years ago
Read 2 more answers
What are fungus like protists
kifflom [539]

Answer:

Fungus-like protists are protists that absorb their food from dead organic matter. They are grouped into 2 groups, slime molds and water molds.

7 0
2 years ago
Other questions:
  • An insect gets trapped in tree sap. The sap dries, and the insects are preserved exactly as they were in real life.
    7·2 answers
  • Consider the following claim: Group behavior can increase the chances for an individual and a species to survive and reproduce.
    8·1 answer
  • What is agricculture​
    6·1 answer
  • Imagine that you live in the midlatitudes—say, Virginia—and a cyclone passes by. What is the correct sequence of events?
    14·1 answer
  • WILL MARK BRAINLIEST!!!!
    7·1 answer
  • If a person had A blood type, then the antigen found on the RBC would be_____.
    7·1 answer
  • One condition in the body that needs to be controlled is the level of
    10·1 answer
  • The moon itself doesn’t emit any _____ like the sun.
    11·1 answer
  • Which molecule is used to tell tRNA which amino acid is needed?
    6·2 answers
  • A client with acute renal failure progresses through four phases. which describes the onset phase?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!