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Biology 12 Chapter 16 - Support and Movements - 18
1.
What is the diameter of skeletal muscle fibres?
20-30µm
10-50µm
10-100µm
10-12 nm
2.
What are the fibres called which help to attached muscle with bone?
Tendons
Joints
Ligaments
Fibrous cartilage
3.
Skeletal muscles are also called?
Involuntary muscles
Triceps muscles
Striped muscles
Biceps muscles
4.
Which of the following is Correct characteristic of cardiac muscles?
Voluntary
Involuntary
Unstriped
Spindle shape
5.
Which of the following, of the muscle fibre is similar to the cytoplasm of other cells?
None
Sarcoplasmic reticulum
Sarolemma
Sarcoplasm
6.
Which of these are stored in sarcoplasm?
A red pigment
Myoglobin
All of these
Glycogen
7.
The muscle cell membrane that enclosed bundles of myofibrils?
Sarcolemma
Sarcoplasm
Sarcoplasmic reticulum
Sarcomere
8.
The smaller contractils units of myofibrils are called?
Sarcolemma
Sarcoplasm
Sarcomere
Sarcoplasmic reticulum
9.
What is Correct statement about A band?
It is isotropic
It is light band
It is dark band
It can not polarize
10.
What is Correct statement about light band?
It is anisotropic
It can polarize
It is called A band
It is called I band
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