Question

Water is an end product in which of the following processes?
A) Glycogenolysis
B) Hydrostatic skeleton
C) Respiration
D) Carbon assimilation

Answer 1

Hint: Water is an inorganic transparent, tasteless, odorless and a colorless chemical substance. It is an important product that is sometimes used up in the processor is formed later as a by-product. The given options are different from each other in different aspects, one can get to the answer by inferring all of them.

Complete answer:
Let us first infer the option given above:
A) Glycogenolysis- Glycogenolysis is the reconversion of glycogen to glucose. It occurs in the liver when the level of blood glucose falls below normal. The glucose formed is released into the blood to raise its glucose level to normal. It requires activation of the enzyme phosphorylase. This process is needed for the preparation of glucose and water is generally used up to form the glucose.

B) Hydrostatic skeleton- It is a flexible skeleton that is supported by fluid pressure that is common among simple invertebrates organisms. The name itself suggests the skeleton or organ that is fluid-filled. As a skeleton structure, it can affect the shape and the movement that is generally involved into two mechanics units: the muscle layer and the body wall. It uses a cavity that is filled with water so that its organism can use it to change its shape. This process also does not produce water.

C) Respiration- Respiration is defined as the exchange of environmental oxygen with the carbon dioxide produced in the cells during oxidation at a moist surface. In this process, glucose gets oxidised and generates ATP with the by-product of water.

D) Carbon assimilation- It is the process by which inorganic carbon is generally converted into organic compounds by living organisms. These compounds are then used to store energy as the structure. Carbon is fixed by the process of photosynthesis but in some organisms, they undergo chemosynthesis in the absence of sunlight.

Respiration is the process in which the by-product formed at the end of the process is water. So, the correct answer is option C.

Note: Respiration is a metabolic process by which organisms obtain energy in the form of ATP and NADPH by oxidizing nutrients and by the release of waste products. It is an important process that occurs by ventilation and perfusion in the lungs. Ventilation is the process of taking in and out of the air of the lungs whereas perfusion is the process of circulation of blood in the pulmonary artery.