Question

Question Completion Status: QUESTION 2 Different in smooth muscle compared to skeletal muscle a. Sarcoplasm reticulum is missing b .calcium is not required c. Sarcoplasm reticulum is less developed d. sarcolemma is missing QUESTION 3 Magnesium plays key role in deep tissue contraction, answer true false for this question a. true b. false c.not sure de silly question QUESTION 4 Clear evidence of sarcomere (when looking under microscope) in a. Cardiac muscle smooth muscle skeletal muscled . A and QUESTIONS So called functional unit of the muscle Zband only . sarcomerec Hand 2 bands d. muscle fasciculus QUESTION 6 Present and functions in skeletal muscle and not smooth muscle Troponin troponine beta and A and

Answer 1

Question-2

Different in smooth muscle compared to skeletal muscle - (d. sarcolemma is missing)

Explanation- Sarcolemma is found in skeletal muscle. Sarcolemma is the cell membrane of a striated muscle fiber cell.

Question-3

magnesium plays key role in deep tissue contraction - (a.true)

Explanation- Magnesium (Mg) plays vital role in the active transport of calcium (Ca) and potassium (K) ions across cell membranes, a process that is very much important for contraction of muscle.

Question-4

Clear evidence of sarcomere (When looking under microscope) in - (d. A and C)

Explanation- Both cardiac and skeletal muscle constitue of actin (thin) and myosin (thick) filaments which are ogranized as sarcomere units.

Question-5

So called functional units of the muscle - (b. sarcomere)

Explanation- The myofibrils are composed of thin (actin) and thick (myosin) filaments, repeated in units are called sarcomeres, which are the basic functional units of the muscle.