Sarcoplasmic reticulum is like endoplasmic reticulum but devoid of _ and exhibit a highly specialized _ pattern.
Correct answer: A. Ribosome, repeating
- A. Ribosome, repeating
- B. Mitochondrion, repeating
- C. Ribosome, simplified
- D. Mitochondrion, simplified
- E. Ribosome, zig zag
Explanation
The sarcoplasmic reticulum is a specialized type of endoplasmic reticulum found in muscle cells. It is responsible for storing and releasing calcium ions necessary for muscle contraction. The sarcoplasmic reticulum is similar to the endoplasmic reticulum in structure but lacks ribosomes (hence the answer A). The pattern of the sarcoplasmic reticulum is highly specialized and repeating, which allows for the efficient release of calcium ions during muscle contraction.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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