All categories

3 years ago

The Z disc forms the end _____ of a sarcomere.

Biology

1 answer:

slavikrds [6]3 years ago

4 0

Answer:

The best answer to the question: The Z disc forms the end____ of a sarcomere, would be: the end border, or the point where sarcomeres join, within a muscle fiber.

Explanation:

Concretely, a Z disc is the boundary line that divides sarcomeres within a muscle fiber. They are the bordes between sarcomeres and they contain the most important molecule, actin, which forms the thin filaments essential for muscle tissue movement. This actin molecule, present along the Z discs, under the correct stimulation and circumstances, will bind to myosin and thus movement will be possible.

You might be interested in

hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support

Gwar [14]

Hi,

Harshey and Chase did a great experimentation which was basically a two step experiment to prove that DNA and not proteins are the actual carriers of genetic information from parents to offspring.

In the first part of their experiment, they used bacteriophages (virus that eat bacteria). They used radioactively labeled sulphur(35S) medium to grow bacteriophages and observed that all the bacteriophages had proteins with radioactive sulphur(35S).

In the next step they allowed these phages to infect bacteria and to their surprise, they found that the bacteria did not had radioactively labeled sulphur in them because the coat of bacteriophage stays outside the body of bacteria when it attacks it. This proved that DNA not proteins were the hereditary material.

To make their results more reliable, they did a second experimentation in which, they marked the DNA of the phage with radioactive phosphorus 32P. After labeling DNA, they repeated the same experiment and this time, they found radioactive phosphorus inside the bacteria.

This meant that the bacteria had DNA of phage entered inside them and this again proved that DNA not proteins are the hereditary material. You can see attached image for better understanding.

Hope it help!

7 0

3 years ago

True or false, Drive theory involves a human's need to take care of basic desires like thirst, hunger, rest, and safety.

AVprozaik [17]

Your answer will be true

3 0

4 years ago

In the Earth's mantle, heat is transferred in large convection currents. Within these currents,

yarga [219]

Answer:

D. hotter rock rises and cooler rock sinks.

Explanation:

We know that as we move towards Earth's center, the temperature rises. This rise in temperature causes rocks to melt (magma). The high temperature and melting of rocks decrease the density of material which makes it move upward. By moving upward, the molten rock starts turning solid and becomes denser again. Here, it sinks back due to gravity. This upward and downward movement of rocks due to density and temperature makes a convection cell.

PS: The formation of convection cells in Earth's interior is also the reason for plate tectonics.

3 0

3 years ago

Read 2 more answers

Which of the following is true about offspring resulting from a cross that yielded TT, Tt, TT, ans Tt?

Vera_Pavlovna [14]

Additional detail found elsewhere: (T = Tall and t = short)

Answer:

All are expected to be tall

Explanation:

We are told that the T allele produces the tall trait, and the t allele produces the short trait.

Because the tall allele is denoted by an uppercase letter, it means it is the dominant allele, meaning if it is present even in one copy, the trait will be expressed. This is in contrast to the recessive short allele, 2 copies are needed for the trait to be expressed.

Individuals have 2 copies of every gene. Offspring that are TT, Tt, TT, and Tt all have at least one copy of the T (tall allele). Because this is the dominant allele, that means all of these offspring would be expected to be tall.

5 0

3 years ago

Can join answer the question

frozen [14]

Answer:

Enzyme A

Explanation:

Hello there?

In the stomach, hydrochloric acid is present which is a strong acid (0-4) which is below pH 7. Therefore an enzyme that act best well here should be below pH 7 which for our case is A.

I hope this helps have a nice studies.

8 0

2 years ago