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
12345 [234]
3 years ago
5

The sliding filament model is our best explanation of how a skeletal muscle shortens. Based on your knowledge of the structure o

f the sarcomere and the changes that occur in the sarcomere with muscle contraction, explain the evidence that supports the sliding filament model.

Biology
1 answer:
Veseljchak [2.6K]3 years ago
7 0

A sacromere is a segment between two adjacent Z discs and are essential for the striated structure of the cardiac and skeletal muscles.

<u>Explanation:</u>

The Z disc is surrounded by the I band made of thin filament called actin. The I band is followed by the A band made up of thick filament called myosin. When the muscles contract the actin and the myosin become superimposed/overlapped.

The sliding filament model explains the contraction of the sacromere in which the Z discs move closer due to the overlapping of the thin and thick filaments. Thus the I band moves close to the A band which remain the same length as shown in figure.

You might be interested in
Male-patterned baldness is more common in males as the name suggest.why is this?
Ray Of Light [21]

Answer:

mark brainliest :))

Explanation:

Because baldness is a sex-linked trait.  

In other words, men are simply more likely to express the trait for baldness than women are, because they only need one set of genes for baldness, while women need two.  

If, for example, for each gene there is a 1/2 chance that the gene will be for baldness and 1/2 that it will not, then men have a 1/2 chance (because 1/2^1 = 1/2) of being bald, while women have a 1/4 chance (because 1/2^2 = 1/4) of being bald.  

This is the reason it's called "male-pattern baldness": it is more common in males. However, this does not explain nor rule out the dearth of women with baldness-women can get it too: it's just less common

5 0
3 years ago
Read 2 more answers
Which statement about plant classification below is true?
Grace [21]

Answer:

d

Explanation:

3 0
3 years ago
Read 2 more answers
What sphincter separates the small intestine from the large intestine?
oee [108]
The ileo-cecal (I-C) valve or sphincter controls the passage of digestive material from the Ileum (small intestine) into the cecum (large intestine).
8 0
3 years ago
Can spiders really sense danger
spayn [35]

No, not really because if nothing is near them they cant sense any type of danger. But if something is close they may be afraid but don't sense danger. It basically a spiderman myth.

Hope I helped!


- LILBLAKEYOUT

6 0
3 years ago
Read 2 more answers
What was the purpose of adding methotrexate to the cells expressing a genetically-engineered Dihydrofolate Reductase enzyme in t
ira [324]

Answer:

Methotrexate inhibits the synthesis of DNA, RNA, and protein synthesis of the cells in the experiment.

Explanation:

Methotrexate competitively inhibits the enzyme dihydrofolate reductase (DHFR) which is involved in the synthesis of tetrahydrofolate from the inactive dihydrofolate. The methotrexate blocks the enzyme by binding to its active site thereby preventing further reaction of the dihydrofolate reductase enzyme and dihydrofolate. Tetrahydrofolate is a useful material for the de novo synthesis of thymidine, a nucleoside. And without thymidine, DNA synthesis is hindered. Methotrexate therefore inhibits the synthesis of DNA, RNA, thymidylates and of course protein synthesis.

5 0
3 years ago
Other questions:
  • One of the genes that controls color vision is found on the X chromosome. The dominant allele results in normal color vision, an
    15·2 answers
  • Human activities, particularly the combustion of ____________, are altering the climate by increasing CO2 in the atmosphere.
    12·2 answers
  • the graph shows the annual temperature variations for four cities. Based on the graph, which city most likely experiences as a t
    5·2 answers
  • What is a cinder cone
    7·2 answers
  • According to Darwin's theory of evolution, how do new species evolve?
    13·1 answer
  • 20 points help PLEASE!!! Match the following items.
    12·1 answer
  • If a pair of homologous chromosomes fails to separate during anaphase of meiosis I, what will be the chromosome number of the fo
    12·1 answer
  • How is sandstone metamorphosed into quartzite?
    12·1 answer
  • What is the importance of the carbon and nitrogen cycles to ecosystems?
    12·1 answer
  • Like replication and transcription, translation is a process in which the information present within a nucleic acid template is
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!