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Nikitich [7]
4 years ago
12

What causes the myosin head to move into the 'cocked' position after it is released from actin? Group of answer choices ATP bind

ing to myosin. ATP hydrolysis into ADP and Pi on the myosin head. ADP and Pi release from the myosin head Ca2+ binding to troponin.
Biology
1 answer:
kupik [55]4 years ago
3 0

Answer:

Explanation:

The molecular and cellular mechanisms and processes that explain muscle contraction in striated muscle occur in the myofibril sarcomere. Their understanding depends on the organization's understanding of the structure of the sarcomere. In an imaginary experiment we first assemble an ideal sarcomere.

Remember that the myofibril is a set of cylindrical compartments that are located next to each other, constituting an elongated cylinder. Each of these cylinders is a sarcomere and borders its neighbor on a line or band called, line or band z.

On each side of the z line, thin cylindrical filaments that are actin filaments are inserted. Each actin filament is formed by a double strand of actin molecules that are rolled over each other. In this organization, actin is called actin F.

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Which of the following statements is true regarding cerebral lateralization? Check all that apply
Finger [1]

Answer:

A. Left-handed people usually exhibit a wider frontal, parietal, and occipital lobe on the left compared to the same lobes on the right.

D. Imagination, insight, and artistic skill are usually specialties of the right hemisphere.

E. Lateralization develops with age and is not already developed at birth.

Explanation:

3 0
3 years ago
In humans, a type of blindness is due to a dominant allele (B). Normal vision is the result of a
barxatty [35]

Answer:

Yes, a child with normal vision who does not suffer from headaches can be produced.

The probability of producing such child from this cross is 1/2 or 50%

Explanation:

This question involves two distinct genes in humans. One coding for blindness and the other for Migraine headaches. The alleles for blindness (B) and Migraine (M) are dominant over the alleles for normal vision (b) and no Migraine (m).

According to the question, a male who is heterozygous for blindness and does not suffer from migraines will have the genotype; Bbmm while a female who

has normal vision and does not suffer from migraines will have genotype; bbmm. If these two parents are crossed, the following genotypes of gametes will be produced by each parent:

Bbmm- Bm, Bm, bm and bm

bbmm- bm, bm, bm, and bm

Using these gametes to construct a punnet square (see attached image), the following offsprings with genotypes; Bbmm and bbmm in the ratio 1:1 will be produced.

Bbmm (8/16) are offsprings with blindness and have no Migraine headache

bbmm (8/16) are offsprings with normal vision and have no migraine headache

Hence, this cross can produce a child with normal vision who does not suffer from headaches (bbmm). Also, the probability of producing such child is 8/16 or 1/2.

8 0
3 years ago
The ______ is the natural environment, in soil or water or within organisms, where a pathogen lives.
nalin [4]

Answer:

The reservoir?

Explanation:

I hope this is the answer, it should be

7 0
3 years ago
Do all cells have every organelle?
irinina [24]

Answer:

No.

Explanation:

Some organelles are found only in some cell types.

4 0
3 years ago
Read 2 more answers
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Leona [35]
Binocular helps to make distant objects appear nearer and larger
5 0
3 years ago
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