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
Alex
3 years ago
7

Explain how it is that actin and myosin in the sarcomere never actually shorten and yet the muscle as a whole does.

Biology
1 answer:
Leni [432]3 years ago
5 0

Answer:

The muscle fibers are pulled by the myosin and sarcomere together, resulting in the shortening of the fibres, but the sarcomere and myosin just move.

Explanation:

During muscle contraction, each sarcomere shortens, bringing the Z discs close together. There is no change in the width of the A band but both I bands and the H zone almost completely disappear. These changes are explained by actin and myosin filaments sliding past one another, so that the actin filaments move into A band and H zone. Muscle contraction thus results from an interaction between the actin and the mosin filaments that generates their movement relative to one another. The molecular basis for this interaction is the binding of the myosin to actin filaments that generate their movement relative to one another.

You might be interested in
WINNER AS BRAINLIEST HELP ME ANSWER THESE ASAP
Mnenie [13.5K]

Answer: pretty sure the answer is C

Explanation:

7 0
4 years ago
Read 2 more answers
A representation of earths rounded surface on a flat surface is called?
Montano1993 [528]
A representation of earths rounded surface on a flat surface is called___a map.
8 0
3 years ago
Which organic molecules are nucleic acids
Lostsunrise [7]
I think it may be this but not quite sure

Lipids are primarily hydrophobic in nature, but there are a large variety of lipids such as fatty acids, mono-, di-, and triglycerides, for example (check wikipedia for more examples). 

<span>Proteins are polymers of amino acids. </span>

<span>Nucleic acids are polymers of nucleotides.</span>
4 0
3 years ago
Fragmenting one large park or preserve into many small parks with human habitation in between them is most likely to lead to whi
barxatty [35]

Answer:

The correct answer is a. Reduction in species diversity

Explanation:

In habitat fragmentation, the large area of forest is divided into many smaller patches which reduce the area of habitat for species live there. This Fragmentation of habitat occurs mainly due to human activities like making highways and roads in the area.

This separates species member from each other which reduces the gene flow between that which can lead to inbreeding depression in a species and extinction of species can occur.  

Cutting trees and human activities can alter the environment negatively which can cause extinction of some species that reduce species diversity. So the correct answer is a.

3 0
3 years ago
If there was a mutation changing the A to a G at position 11 in the DNA strand used for making the protein, what type of mutatio
olganol [36]

mutation-nomenclature

probably for sure

6 0
3 years ago
Other questions:
  • Electricity will not generally cause
    7·1 answer
  • What is the outside of the virus made of?
    7·2 answers
  • The process of injecting water, sand, and chemicals under high pressure into rocks to release oil and natural gas is known as
    7·1 answer
  • Marissa is tall like her dad. She has her great grandmother's eye color. How is this possible?
    15·2 answers
  • Where would you expect to see variations in handwriting
    13·1 answer
  • Lichens are a symbiotic relationship which does not include Algae<br><br> True<br><br> False
    8·1 answer
  • A racing car has a mass of 800 kg. It undergoes an acceleration of 3.0 m/s2. What is the Force acting on the car. F=ma ()
    13·1 answer
  • In Drosophila, the dominant allele Cy (Curly) results in curly wings. The cross Cy/ x Cy/ (where represents the wildtype allele
    15·1 answer
  • Based on the image of rock layers and fossils what can you conclude?
    15·1 answer
  • you are a scientist trying to spread the word about the actions of mankind and provide a solution for our safety health and liva
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!