Answer AND Explanation:
A variety of organic and inorganic compounds serve very important roles in living things. The various organic compounds constitute the structures of the body and regulate the chemical processes going on inside it.
Carbohydrates are essential for life since they are oxidised during respiration to release energy. Glucose is the most common respiratory substrate. They are also building blocks of polysaccharides such as starch and cellulose in plants and glycogen in animals.
Lipids are important because they can be oxidized during respiration to release energy. They provide twice the amount of energy for the same weight of carbohydrates. They also act as insulators, source of metabolic water and are major components of cell membranes.
Proteins are important structural components of the cytoplasm and various supportive tissues in the body, transport substances, make up hormones and are used as a source of energy through respiration.
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<span>The macromolecules DNA and RNA are referred to as the the nucleic acids. They are the polynucletoides, and have the nucletoide repeating monomers of a ribose sugar, nitrogenous base pair, and phosphate group.</span>
The correct answer is protein.
The Recommended Dietary Allowance (RDA) is set by the Food and Nutrition Board of the Institute of Medicine. It represents the average daily level of nutrient intake which is sufficient to meet the needs of nearly all healthy people.
According to the RDA, the daily intake of protein for healthy adults is 0.8 grams per kilogram of body weight.
Answer:
A source from which organisms generally take elements is called exchange pool (option B).
Explanation:
Options for this question are:
- <em>Food web.</em>
- <em>Exchange pool.</em>
- <em>Reservoir.</em>
- <em>Biotic community.</em>
The term exchange pool is related to the biogeochemical cycles that exist in nature, referring to the source from which elements present in the environment become part of living organisms.
<u>Exchange pools are the biotic components</u> -like animals and plants- of an ecosystem, which determine the passage of elements between living beings. An element can remain as a reservoir (abiotic) in the soil, and then be incorporated into the exchange pool.
