Question

Aditi observed following observations while looking into a permanent slide. Cells are long and cylindrical. Light and dark bands are present giving striated appearance. It could be a 1 point slide of striated muscle fibre slide of smooth muscle fibre. slide of neuron slide of parenchyma cells

slide of striated muscle fibre
slide of smooth muscle fibre.
slide of neuron
slide of parenchyma cells

Answer 1

The correct answer will be a slide of striated muscle fibers.

• Skeletal muscles show striations and they are long and cylindrical.

• They have light and dark bands which help in contraction.

• The light band is called I-band /isotropic band and Dark band is called

        A-band/anisotropic band.

• Dark band is made up of myosin filament while Light band is made up of actin filament.

Answer 2

Option A is correct

A slide of striated muscle  fibre will be the proper response.

• Striations may be seen on skeletal muscles, which are long and cylindrical.

• They are made up of bright and dark bands that aid in contraction.

• The bright band is referred to as the I-band or isotropic band, whereas the dark band is referred to as the

• Anisotropic band (A-band).

• Myosin filaments make up the dark band, whereas actin filaments make up the light band.