Sarcoplasm is different from cytoplasm as:
Correct answer: D. All of these
- A. It contains sarcoplasmic reticulum
- B. It contains glycogen
- C. It contains glycogen and oxygen-binding protein myoglobin
- D. All of these
Explanation
The sarcoplasm is a specialized type of cytoplasm found in muscle cells. It is distinct from general cytoplasm because it contains the sarcoplasmic reticulum, a specialized structure that stores calcium ions necessary for muscle contraction. Additionally, sarcoplasm contains high levels of glycogen, which is a carbohydrate stored as energy reserves, and myoglobin, an oxygen-binding protein that provides oxygen to muscle cells. These components are not typically found in the cytoplasm of non-muscle cells. Therefore, the correct answer is 'All of these' as it encompasses all the unique features of sarcoplasm. Options A, B, and C each describe only part of what makes sarcoplasm unique and hence are not fully correct individually.
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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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