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
Andreas93 [3]
3 years ago
5

Treadmiling contributes to actin based motility

Biology
1 answer:
Katena32 [7]3 years ago
5 0

La actina es una familia de proteínas globulares que forman los microfilamentos, uno de los tres componentes fundamentales del citoesqueleto de las células de los organismos eucariotas (también denominados eucariontes). Puede encontrarse comomonómero en forma libre, denominada actina G, o como parte de polímeros lineales denominados microfilamentos o actina F, que son esenciales para funciones celulares tan importantes como la movilidad y la contracción de la célula durante la división celular.

De la importancia capital de la actina da cuenta el hecho de que en el contenido proteico de una célula supone siempre un elevado porcentaje y que su secuencia está muy conservada, es decir, que ha cambiado muy poco a lo largo de la evolución.2 3Por ambas razones se puede decir que su estructura ha sido optimizada. Sobre ésta se pueden destacar dos rasgos peculiares: es una enzima que hidroliza ATP, la "moneda universal de la energía" de los procesos biológicos, haciéndolo muy lentamente. Pero al mismo tiempo necesita de esa molécula para mantener su integridad estructural. Adquiere su forma eficaz en un proceso de plegamiento casi dedicado. Además es la que establece más interacciones con otras proteínas de cuantas se conocen, lo que le permite desempeñar las más variadas funciones que alcanzan a casi todos los aspectos de la vida celular. La miosina es un ejemplo de proteína que une actina. Otro ejemplo es la vilina, que puede entrelazar la actina en haces o bien cortar los filamentos de actina, dependiendo de la concentración de catión calcio en su entorno.<span>4</span>

You might be interested in
What are vascular plants made of
skelet666 [1.2K]

Answer: xylem and phloem

Explanation:

8 0
3 years ago
A phagocytic cell has a mutation in a gene for a hydrolytic enzyme that renders the enzyme nonfunctional. What is the most likel
pshichka [43]

Answer: The phagocyte’s ability to destroy the ingested pathogen is compromised and it will become inactive.

Explanation:

There are different hydrolytic enzymes. Lysozyme attacks cell walls of gram positive bacteria. Elastase is a protease. Collagenase attacks collagen, produced by some bacteria. Plasminogen activator is also a protease.

Loss of function of any one of these enzymes will reduce or prevent the breakdown of bacteria in the phagosome (vacuole) so that the phagocyte is inactivated.

4 0
2 years ago
Which step is part of the engineering process but is not part of a scientific investagation
mote1985 [20]

The step that forms part of the engineering process but is not part of a scientific investigation is designing a solution.

<h3>What is the scientific process?</h3>

The scientific process refers to a series of steps called the scientific method which is used to collect empirical evidence and thus test hypotheses.

The engineering process is aimed at finding a solution to problems found in daily issues, which does not correspond to science and the scientific method.

In conclusion, the step that forms part of the engineering process but is not part of a scientific investigation is designing a solution.

Learn more about the scientific process here:

brainly.com/question/17216882

#SPJ1

5 0
1 year ago
Explain the role decomposes play in food webs/ food chains
Delvig [45]
Role of decomposer in fooe chain/food web
Decomposers are organisms which convert complex organic molecules into their simple forms.
Example
bacteria, fungi etc.
Explanation
food chain stary from autotrophs and end at decomposers. these organisms are present in soil, rely on dead bodies of plants and animals for their nutrient requirements. These organisms possess strong enzymatic system, which scavenge comples molecules from dead bodies during respiration and convert them into simple nutrients which return back to atmosphere.
4 0
2 years ago
A chemical is used to stop mitosis during ____________ when chromosomes are most highly compacted and condensed.
boyakko [2]
Answer is Prophase

Prophase is characterized by duplication of genetic material and the condensing of the chromatin to chromosomes. This is especially useful in cytogenetics, a genetic study of chromosomes in a cell.
The chemical called mitotic inhibitors, inhibit the formation of microtubules that pull the chromosomes apart, an essential function of mitosis.
6 0
2 years ago
Other questions:
  • The base of the pyramid is built from organisms that primarily
    7·2 answers
  • Visible light represents a very small portion of the electromagnetic spectrum. Radiation to the left in the image, such as micro
    8·2 answers
  • Edgar, a biochemist, claims to have found a new variety of a type of small biomolecule. Edgar notes that there are now 21 types
    9·1 answer
  • What is the function of a median nerve?
    15·2 answers
  • What is the answer to the question above
    6·1 answer
  • A video game console manufacturer hired scientists and engineers to work on ways to improve the video cards used in their game s
    9·1 answer
  • How does translation form proteins?
    14·2 answers
  • Which of the following is a true statement?
    9·2 answers
  • Tại sao chúng ta lại bị trụt rút
    7·1 answer
  • Chrysanthemums are short-day plants. select conditions in which you expect chrysanthemums to flower.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!