The figure below illustrate specialized cells in an animal body (smooth muscle fibre AND skeletal muscle fibre)

​(a) Give two functions of blood as a tissue (2mks)

• Transport
• Distillation of heat in the body

​(b) The figure below illustrate specialized cells in an animal body

(b) The figure ABOVE illustrate specialized cells in an animal body

​(i) Identify the cells M and N (2mks)

• M ……………………………
  smooth muscle fibre
• N ………………………………
  ​​skeletal muscle fibre

​(ii) State the structural differences between M and N (2mks)

• ​Smooth muscle fibers are located in walls of hollow visceral organs, except the heart, appear spindle-shaped, and are also under involuntary control. Skeletal muscle fibers occur in muscles which are attached to the skeleton. They are striated in appearance and are under voluntary control.

• Smooth muscle fibers are spindle-shaped and, unlike skeletal muscle fibers, have a single nucleus; individual cells range in size from 30 to 200 μm. Smooth muscle fibers are often found forming sheets of tissue and function in a coordinated fashion due to the presence of gap junctions between the cells.

​(iii) Which of the above specialized cells is found in the gut? (1mk)

• M