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Vadim26 [7]
2 years ago
10

3. Write a step-by-step description of the “sliding filament theory.” Think about the requirements for contraction. What stimuli

, sources of energy and other ions are needed to shorten a muscle?
Biology
1 answer:
Zielflug [23.3K]2 years ago
6 0
The sliding filament theory of muscle contraction was developed to fit the differences observed in the named bands on the sarcomere at different degrees of muscle contraction and relaxation. The mechanism of contraction is the binding of myosin to actin, forming cross-bridges that generate filament movement.
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6 0
3 years ago
What is the difference between totipotent, pluripotent, and multipotent stem cells? Discuss the three main types of stem cells a
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Answer:

Totipotent (omnipotent) stem cells can give rise to any of the 220 cell types found in an embryo as well as extra-embryonic cells (placenta). Pluripotent Stem Cells Pluripotent stem cells can give rise to all cell types of the body (but not the placenta). Multipotent Stem Cells Multipotent stem cells can develop into a limited number of cell types in a particular lineage.

Explanation:

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3 years ago
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allsm [11]
Gametes or sex cells (sperm and eggs) contain half the number of chromosomes that exist in autosomal cells; they are haploid. Therefore in the case where the diploid number of chromosomes is 52, the haploid number would be half of that, meaning 52/2 = 26.
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Neurological and perceptual speeds are generally higher in individuals with <u>higher</u> intelligence.

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