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
frosja888 [35]
3 years ago
10

Microtubules are typically _______ in diameter.

Biology
1 answer:
jeyben [28]3 years ago
4 0

Answer:

25nm

Explanation:

Microtubules are polymers of tubulin and they are part of the cytoskeleton. The roles of the microtubules are to maintain the shape and structure of the cell, intracellular transport, they are structural part of the cilia an flagella, they are involved in cell division etc.

Tubulin that is the basic unit of microtubules is composed of two globular proteins, alpha and beta tubulin. Alpha and beta subunits sponta­neously form dimers which then assemble into oligomers, then in chains (protofilaments); that can form a variety of intermediate structures such as single and double rings or spirals. Protofilaments that associate side-by-side  form sheets of protofilaments which then curle to form a tube or cylinder (closing of microtubule). Continued growth of microtubules occurs by the di­rect addition of more dimers on + side.

You might be interested in
Where does cell respiration happen in the cell
Elan Coil [88]

Answer:

In mitochandia and cytoplasm

Explanation:

mitochandira is the eukaryotic cell structure where cellular respiration occure.

cytoplasm is jelly like matterial found between plasma membrane and nuclear envelople it has organelles for performing respiration.

7 0
2 years ago
What is the percentage of nitrogen in Earth's atmosphere? A) 1% B) 21% C) 78% D) 95%
Ahat [919]
The answer is C.... Hope this could help
5 0
3 years ago
Read 2 more answers
Which of the following best defines gene flow?
maw [93]
The best definition to define gene flow is a<span>n important mechanism for transferring </span>genetic<span> diversity among populations which migrants into or out of the population.</span>
5 0
3 years ago
Read 2 more answers
Which statement best defines the relationship among a gene, a chromosome, and DNA?
timofeeve [1]

Answer:

A chromosome is tightly compacted DNA, and a gene is a section of DNA that is used to code for certain characteristics.

7 0
3 years ago
How many triangles can be constructed with angles measuring 110°, 50°, and 20"?
Monica [59]

Answer:

none

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • In a changing environment, which organisms have an advantage—those that reproduce asexually or those that reproduce sexually? Ex
    6·1 answer
  • Which mineral weathers faster hornblende and quartz?
    8·1 answer
  • A test is available to diagnose a disease. if a person has the disease, the probability that the test will produce a positive si
    10·1 answer
  • Which of the following are synapomorphies of mammals?
    6·1 answer
  • I need help with this question. I’m really confused at the moment
    10·1 answer
  • The planet Mercury is closer to the sun than the planet Venus. However, temperatures on Venus are hotter than temperatures on Me
    14·1 answer
  • Organisms can be classified in the same species by morphology and ?
    8·2 answers
  • Components of the innate response include
    5·1 answer
  • Which organelle maintains homeostasis in the cell?
    8·1 answer
  • A soil associated with the hot and wet tropics is _____.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!