The correct answer is: b. phosphorus and nitrogen
Plants use organic matter nutrients that produce by their own and thus we classified them as autotrophs (or self-feeders). But, they also require inorganic nutrients such as nitrogen and phosphorus and often one of them is special nutrient needed for growth and because of that called the limiting nutrient.
The fertilizers that people apply to farm fields, gardens and lawns contain phosphorus and nitrogen.
Answer:
B (Phosphorus and Nitrogen)
Explanation:
Plants are unique organisms that can absorb nutrients and water through their root system. An essential nutrient is one required by an organism for normal growth and development, but which it cannot manufacture on its own. Plant nutrients can be organic or inorganic depending on whether or not it contains carbon.
Because plants can manufacture all the organic nutrients they need, they have no essential organic nutrients, however, they need to take in specific inorganic nutrients to sustain their growth.
The soil supplies some of these inorganic nutrients in relatively large amount. These nutrients called MACRONUTRIENTS include Nitrogen, Phosphorus, Pottasium, Calcium, Sulfur, Magnesium etc.
Nitrogen is a major component of organic compounds (amino acids, nucleic acids; DNA and RNA, chlorophyll). Nitrogen-deprived plants become pale green or yellow, due to a lack of chlorophyll, a condition known as chlorosis.
Like Nitrogen, Phosphorus is involved with many vital plant processes. It is present mainly as a structural component of nucleic acids (RNA and DNA). It is also a vital part of Adenosine triphosphate (ATP) in all living things, including plants.
