MCQ
Difference between rough and smooth endoplasmic reticulum is that
- ✓rough $ER$ has ribosomes
- Bsmooth $ER$ has ribosomes
- Csmooth $ER$ takes part in protein synthesis
- Dboth has $F_1$ particles
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$(I)$ In human body, it is made of number of muscle bundles.
$(II)$ Muscle bundles contains a number of muscle fibers and fiber is lined by the sarcollemma.
$(III)$ In Muscle fiber, sarcoplasm contains only one nucleus.
$(IV)$ In muscle fiber, sarcoplasmic reticulum is the store house of calcium ions.