Question

Correct the statement:- Plants use only 0.4% of the water it absorbs to form carbohydrates. ​

Answer 1

Answer:

Carbohydrates are probably the most common organic substances in nature. Carbohydrates are found in all organisms and are involved in many vital functions. In living cells, the carbohydrate ribose is an essential part of nucleic acids (RNA and DNA), but carbohydrates are also elements in many other molecules such as coenzymes, antibiotics and toxins. In plants and algae, carbohydrates are among the first organic compounds formed during photosynthesis. Carbohydrates can be used as an immediate source of energy by largely all cells, but in many photosynthetic organisms a major portion of the carbohydrates will be used for production of structural compounds, e.g., cellulose in cells walls, or for synthesis of storage products such as starch. Living and dead cells can release carbohydrates to the ambient water, as discussed later, and this contributes to the pool of dissolved organic matter in the water. In lakes and streams, carbohydrates serve as important nutrient sources to microorganisms that hereby convert the dissolved carbohydrates into microbial cells that can enter the food webs and feed other organisms.