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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.

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Soft coral do not build coral reef
Crank

Answer:

true

Explanation:

8 0
3 years ago
which of the following statements regarding enzymes is true? (3 points) enzymes increase the rate of a reaction by making the re
ziro4ka [17]

Which is true about enzymes is: enzymes increase the rate of reactions by lowering the activation energy barrier.

Enzymes are chemical compounds in the form of proteins that act as biocatalysts which function to speed up reactions.

Enzymes work specifically, that is, they can only work on certain substrates by adjusting the shape of the substrate. Enzymes sensor with molecules for substrates to produce compounds through organic chemical reactions that require energy. Some of the reactions assisted by enzymes such as the breaking of large molecules into small ones or the binding of molecules into new molecules. Enzymes can do that because of the influence of the activation energy that every chemical reaction has.

Activation energy is the energy required to break down the reactants. The role of enzymes is to lower the activation energy limit needed to start reactions.

Learn more about enzyme at:

brainly.com/question/17320375

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8 0
1 year ago
1. What are the biotic and abiotic factors the scientists monitor which influence this
bekas [8.4K]

Answer:

biotic factor = vegetation cover and insect abundance

Explanation:

abiotic factor = ambient temperature, cloud cover, wind strength

8 0
3 years ago
Nico wants to buy a new digital camera for his semester studying abroad but he knows very little about cameras, having never own
scZoUnD [109]

Answer:

an external search

Explanation:

According to my research on the consumer buying process, I can say that based on the information provided within the question Nico is engaging in an external search. In Marketing, this term refers to when an individual has no knowledge of a product and therefore seeks out information from personal contacts or various public sources in order to make an informed decision. Which in this case is what Nico is doing by asking in different places about cameras.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

4 0
3 years ago
Which of the following best describes how genetic information is passed to offspring in sexual reproduction?
Evgesh-ka [11]
C because you are like a mix between your mom and your dad. This is just an example. I knew the answer, I just added that to get 20 words
7 0
3 years ago
Read 2 more answers
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