Tag: mineral nutrition in plants

Aeroponics is the technique of growing plants in air. The roots of the plants hang in air supplied with nutrients and water on a regular basis. 

Potassium (K) and Chloride (Cl) ions are the primary minerals responsible for maintaining the osmotic potential and cation-anion balance within plant cells.

In plant physiology, any mineral ion concentration that reduces the dry weight of tissues by about 10% is defined as the toxic concentration.

In 1860 Julius von Sachs, Professor of Botany at the University of Wurzburg, published the first standard formula for a nutrient solution that could be dissolved in water and in which plants could be successfully grown. The technique was termed “nutriculture”.  Now it is called Hydroponics.
Answer is B.

In the Z-scheme of photosynthesis, the primary electron acceptor from the excited chlorophyll molecule (P680) of photosystem II is Pheophytin, which is a type of Quinone.

The criteria for the essentiality of mineral elements in plants were established by Arnon and Stout in 1939.

Potassium is involved in stomatal opening, enzyme activation, and protein synthesis, but it is not directly responsible for the translocation of carbohydrates; that is primarily the role of Boron.

Magnesium (Mg) is essential for the activation of enzymes involved in respiration and photosynthesis. Manganese (Mn) is also a key activator for several respiratory enzymes, including those in the Krebs cycle.

Hydroponic systems include various methods like nutrient film technique (NFT) and aeroponics. All the statements provided accurately describe the principles of these specific soilless culture techniques.

Pepsin enzymes are the enzymes that help in degradation of the proteins into various components like peptones. These enzymes are mostly found in stomach which has acidic pH.