Answer
Verified
424.8k+ views
Hint: Elements which are necessary only in small quantities are known as micronutrients.
Complete Answer:
Let us first understand what the term micronutrient means. In plants, nutrients are divided into two types on the basis of the quantity of the nutrient required by the plant. The two types are,
A) Macronutrient: The nutrients which are required in large quantities are known as macronutrients.
B) Micronutrient: The nutrients which are required in smaller quantities are known as micronutrients.
1) Option a: Mg or Magnesium is required for maintenance of plant health and growth. It is required in larger quantities, therefore it is an example of macronutrient. Therefore, this is the incorrect option.
2) Option b: Zn or Zinc is required by the plants in small compounds, thus it is an example of micronutrients.
Zinc plays a very important role in plant development. The various processes in which zinc is required are,
- It is present as a key constituent in proteins and enzymes.
- It has a role in growth hormone production in the plant.
- It helps internode elongation.
- It helps in withstanding cold temperatures in some plants.
Cu or copper is required by the plants in small compounds, thus it is an example of micronutrients. The role of copper are as follows,
- It is required for both seed and chlorophyll production.
- It is required for enzymatic activities associated with lignin synthesis.
- It is important for respiration of plants.
- It has a role in plant metabolism of proteins and carbohydrates.
- Deficiency of copper can lead to diseases like ergot.
Therefore, this is the correct option.
3) Option c: Ca or Calcium has a role in plant nutrition, cell deposition and plant growth. It is required in larger quantities, therefore it is an example of macronutrient. Therefore, this is the incorrect option.
4) Option d: P or Phosphorus plays an important role in plants as it is a component of ATP. It is required in larger quantities, therefore it is an example of macronutrient. Therefore, this is the incorrect option.
Thus, the correct option is b) Zn/Cu.
Note: There are 7 micronutrients required by the plants, they are- Boron, Chlorine, Copper, Iron, Manganese, Molybdenum, and Zinc.
Complete Answer:
Let us first understand what the term micronutrient means. In plants, nutrients are divided into two types on the basis of the quantity of the nutrient required by the plant. The two types are,
A) Macronutrient: The nutrients which are required in large quantities are known as macronutrients.
B) Micronutrient: The nutrients which are required in smaller quantities are known as micronutrients.
1) Option a: Mg or Magnesium is required for maintenance of plant health and growth. It is required in larger quantities, therefore it is an example of macronutrient. Therefore, this is the incorrect option.
2) Option b: Zn or Zinc is required by the plants in small compounds, thus it is an example of micronutrients.
Zinc plays a very important role in plant development. The various processes in which zinc is required are,
- It is present as a key constituent in proteins and enzymes.
- It has a role in growth hormone production in the plant.
- It helps internode elongation.
- It helps in withstanding cold temperatures in some plants.
Cu or copper is required by the plants in small compounds, thus it is an example of micronutrients. The role of copper are as follows,
- It is required for both seed and chlorophyll production.
- It is required for enzymatic activities associated with lignin synthesis.
- It is important for respiration of plants.
- It has a role in plant metabolism of proteins and carbohydrates.
- Deficiency of copper can lead to diseases like ergot.
Therefore, this is the correct option.
3) Option c: Ca or Calcium has a role in plant nutrition, cell deposition and plant growth. It is required in larger quantities, therefore it is an example of macronutrient. Therefore, this is the incorrect option.
4) Option d: P or Phosphorus plays an important role in plants as it is a component of ATP. It is required in larger quantities, therefore it is an example of macronutrient. Therefore, this is the incorrect option.
Thus, the correct option is b) Zn/Cu.
Note: There are 7 micronutrients required by the plants, they are- Boron, Chlorine, Copper, Iron, Manganese, Molybdenum, and Zinc.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Why Are Noble Gases NonReactive class 11 chemistry CBSE
Let X and Y be the sets of all positive divisors of class 11 maths CBSE
Let x and y be 2 real numbers which satisfy the equations class 11 maths CBSE
Let x 4log 2sqrt 9k 1 + 7 and y dfrac132log 2sqrt5 class 11 maths CBSE
Let x22ax+b20 and x22bx+a20 be two equations Then the class 11 maths CBSE
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
At which age domestication of animals started A Neolithic class 11 social science CBSE
Which are the Top 10 Largest Countries of the World?
Give 10 examples for herbs , shrubs , climbers , creepers
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Difference Between Plant Cell and Animal Cell
Write a letter to the principal requesting him to grant class 10 english CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE