Question

A small mesophytic twig with green leaves is dipped into water in a big beaker under sunlight. It demonstrates
A. Photosynthesis
B. Respiration
C. Transpiration
D. None of the above

Answer 1

Mesophytic cells are those which are differentiated into sponge cells and palisade cells. They contain chlorophyll cells. Mesophyll cells are abundant on the leaf surface, they are green in color and they are the main spot for photosynthesis.

Complete answer:
Plants are autotrophs that have the capacity of producing their food through the process of photosynthesis. The process of photosynthesis occurs in the leaf which will be later transported to different parts of the plant for growth and development of plants. Plants are living organisms apart from the fact that it is not able to move there is transpiration that takes place and there is respiration process in plants.
Photosynthesis is the process of production of glucose using carbon dioxide, water, and sunlight. In this process, oxygen gas is released as the by-product of the external environment. Respiration in plants involves the usage of sugar produced during photosynthesis and oxygen to produce energy in the form of ATP. The ATP is later used to do the work in the plants. The transpiration process in plants involves the movement of water from root to leaf where photosynthesis occurs. The extra water that is transported will be lost from the surface of the leaf in the form of water vapor. The water is transported from root to leaf by a force called the transpiration pull.

So, the correct answer is option C.

Note:
The demonstration of transpiration can also be demonstrated by adding a coloring substance to water that clearly shows the movement of water through the stem. The process of transpiration occurs through the pores that are present in the plant including stomata, lenticels. Most transpiration occurs through stomata which are called stomatal transpiration.