OBJECTIVE LIFE SCIENCE
PLANT PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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plant food added to the plant pot
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use of basic chemical elements in the plant
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chemical process providing plants with elements of growth
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the measurement of acidity (sourness) and alkalinity (sweetness)
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Detailed explanation-1: -The six macronutrients, nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S) are required by plants in large amounts. The rest of the elements are required in trace amounts (micronutrients).
Detailed explanation-2: -Most needed are nitrogen (N), phosphorus (P), potassium (K), and sulphur (S). The others are calcium (Ca), iron (Fe), magnesium (Mg), manganese (Mn), zinc (Zn), copper (Cu), boron (B), molybdenum (Mo), chlorine (Cl), sodium (Na), cobalt (Co), nickel (Ni), and silicon (Si).
Detailed explanation-3: -There are two modes of nutrition: Autotrophic – Plants exhibit autotrophic nutrition and are called primary producers. Plants synthesis their food by using light, carbon dioxide and water. Heterotrophic – Both animals and human beings are called heterotrophs, as they depend on plants for their food.
Detailed explanation-4: -The macronutrients plants require are carbon, nitrogen, hydrogen, oxygen, phosphorus, potassium, calcium, magnesium, and sulfur. Important micronutrients include iron, manganese, boron, molybdenum, copper, zinc, chlorine, nickel, cobalt, silicon and sodium.