Why is it more advantageous for body plans to be tubular Des

Solution

Answer: it is advantageous to have tubular body plans as

1: the tubular body plans can maintains the surface area: volume ratio

2. Tubular organs could be packed in smaller volumes by coiling.

3. In a tubular gut food and waste do not get mixed.

4. regions of the tube can become specialised in a particular function like intake, digestion, assimilation and waste collection etc.

5. Unlike a sac like structures, tubular organs are more effecient and can multitask with ease.

the body intrinsically and extrinsically experiences a lot of pressures that force this ind of a blauplan or tube like body plan. i.e

a) Mechanical forces: Spring force (due to uncoiling of actin tubules)

Osmotic pressure (Egg cells undergo changes in osmotic levels and become more hydrated as they move from the ovary to the uterus, these associated changes in osmotic pressure activate egg cells mechanically by altering cell shape)

Surface Tension (Till Extra cellular matrix is deposited the cells behave like liquids and are affected by surface tension bringing about a more spherical kind of a shape)

Tension. traction and prestress (tensional pulling forces generated by microfilaments is balanced by traction forces and constant balancing of these forces creates a prestress or an isometric kind of tension in the cell)