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NikAS [45]
3 years ago
15

What role do calcium and atp play in muscle contraction?

Biology
2 answers:
AlladinOne [14]3 years ago
7 0
It plays a role in nerve conduction, constriction and relaxation of blood vessels, and hormone secretion. Calcium also plays a vital role in muscle contraction, including your cardiac and skeletal muscles.
I HOPE THIS HELPS plz vote me brainliest
nalin [4]3 years ago
3 0
Calcium ions bind to troponin-tropomyosin molecules located on the grooves of the actin filaments. upon binding with calcium ions, troponin changes shapes and moves tropomyosin out of the groove which the tropomyosin normally blocks the actin myosin binding points. This facilitates creation of the myosin-actin crossbridges which are the basis of contraction of muscles. ATP is the form of energy required to facilitate the creation of cross bridges and movement of calcium ions
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Independent assortment of chromosomes is a result of _____.
Ann [662]

Answer:

the "second law of Mendel", or principle of independent distribution, states that during the formation of gametes, each pair of alleles segregates independently of the other pairs.

Explanation:

Mendel's second Law is also known as the Law of Segregation, also as the Law of Equitable Separation, and also as the Law of Disjunction of the Alleles. This Second Law of Mendel is fulfilled in the second filial generation, that is to say, from the parents to the first generation, the First Law of Mendel is fulfilled, and after the children of the first generation this Second Law of Mendel is fulfilled.

This 2nd Law of Mendel, speaks of the separation of the alleles in each of the crossing between the members of the first generation, who would now become parental of the second generation, for the formation of a new child gamete with certain characteristics.

Since each allele is separated to constitute features that do not belong to the first filial generation, but to that of the parents. That is to say that many of the most obvious features in the recessive allele would be present when a generation leaps. All this in relative proportion to the number of individuals in the second subsidiary generation.

3 0
3 years ago
1 out of every 5 pounds of an average adult's body weight is fat. what percent of body weight is fat?
podryga [215]
1 out of 5 is 1/5.
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5 0
3 years ago
a cell phone company charges $40 per month for unlimited calling and $0.20 per text message sent it to you represents the number
yarga [219]

The expression would be $0.20 x f. Once you figure out what the 'f' variable stands for, you have to multiply it by $0.20, and you will have your answer.

3 0
3 years ago
The area of the muscle fiber where the actin and myosin myofilaments overlap is
Varvara68 [4.7K]

Answer:

Sarcomere

Explanation:

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In addition to this, the muscles have A-band and I-bands. These bands give the muscles alternate light and dark colour band structure. In the A-band, myosin filaments are present, whereas in the I - band the actin filaments are found.

In I-band 2 Z-lines are located.  The area between the Z-lines is called sarcomere. In this sarcomere region both actin and myosin filaments present.

When muscles get contracted the length of the sarcomere shorten. The actin and myosin filaments overlap in this area. A cross-bridge form between them, with the help of filamentous protein titin.

8 0
3 years ago
Which of the following describes the first law of thermodynamics
Fed [463]

The answer is C. It states that energy can only be moved from object to object.

7 0
3 years ago
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