Plant Nutrients Short Question

 37) What is  meant by macronutrient? Give two examples.

Macronutrients are nutrients that provide calories or energy. Nutrients are substances needed for growth,metabolism and for other body functions.Since “macro” means large, macronutrients are nutrients needed in large amounts.  Example: Nitrogen, Phosphorous

 

38) What is meant by micronutrient? Give two examples.

Micronutrients are dietary components, often referred to as vitamins and minerals, which although only required by the body in small amounts, are vital to development, disease prevention, and well being. Example: Zinc, Molybdenum

 

39)Name two nutrient which is responsible for chlorosis?

Mg and Mn

 

40) Name two nutrient solutions for plants.

1. The Hoagland solution is a hydroponic nutrient solution that was provides every nutrient necessary for plant growth and is appropriate for the growth of a large variety of plant species.

 

2. M.S Medium

 

41) Name two enzymes where Mg acts as an activator.

Hexokinase

 

42) Name two enzymes where Zn acts as an activator.

Carboxy peptidase

43) Name two enzyme where copper is present.

Ascorbic acid oxidase and Polyphenol oxidase

 

44) Name one metal, which play important role in biological nitrogen fixation

Zinc