The common nitrogen-fixer in paddy fields is
- Rhizobium
- Azospirillum
- Oscillatoria
- Frankia.
The Correct Option is B
Solution and Explanation
Top Questions on Essential Mineral Elements
- Which of the following conclusions was drawn from the Avery-MacLeod-McCarty experiment related to bacterial DNA?
- MHT CET - 2024
- Biology
- Essential Mineral Elements
- Match the following:
- TS EAMCET - 2024
- Botany
- Essential Mineral Elements
- Which of the following is/are trace element(s)?
- IIT JAM BT - 2024
- Biology
- Essential Mineral Elements
- Which mineral is majorly responsible for fluid balance, acid-base balance and nerve transmission in human body?
- CUET (PG) - 2023
- Biology
- Essential Mineral Elements
- Given below are two statements: Statement I: Mineral stains contain metallic compounds and therefore, requires treatment with mild acidic reagents followed by alkaline solutions to neutralise. Statement II: Old iron stains can be removed by applying dilute oxalic acid and neutralizing with dilute borax solution. In the light of the above statements, choose the correct answer from the options given below
- CUET (PG) - 2023
- Home Science
- Essential Mineral Elements
Questions Asked in NEET exam
- Twins are born to a family that lives next door to you. The twins are a boy and a girl. Which of the following must be true?
- NEET (UG) - 2025
- Genetics
- With the help of the given pedigree, find out the probability for the birth of a child having no disease and being a carrier (has the disease mutation in one allele of the gene) in the F3 generation.
- NEET (UG) - 2025
- Genetics
A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is :
- NEET (UG) - 2025
- Moment Of Inertia
- Two cities X and Y are connected by a regular bus service with a bus leaving in either direction every T min. A girl is driving scooty with a speed of 60 km/h in the direction X to Y. She notices that a bus goes past her every 30 minutes in the direction of her motion, and every 10 minutes in the opposite direction. Choose the correct option for the period T of the bus service and the speed (assumed constant) of the buses.
- NEET (UG) - 2025
- Relative Velocity
- A microscope has an objective of focal length \(f_o = 2\) cm and an eyepiece of focal length \(f_e = 4\) cm. The tube length of the microscope is \(L = 40\) cm. If the distance of distinct vision of eye is \(D = 25\) cm, the magnification in the microscope is:
- NEET (UG) - 2025
- Optical Instruments
Concepts Used:
Essential Mineral Elements
Mineral Elements:
A large number of inorganic elements are necessary for all the life processes and hence should be taken into our diets in adequate amounts. Any deficiency in these minerals leads to an abnormality in the metabolic functioning of the body.
Essential Mineral Elements in Plants
There are two types of minerals that are essential for plant growth, such as:
1. Macrominerals
Minerals like Phosphorous, carbon, silicon, magnesium, hydrogen, sodium, nitrogen, potassium, calcium, oxygen, selenium, and sulfur are required in abundance for proper plant growth and are also found abundantly in plant tissues. Hence, they are known as macrominerals.
2. Microminerals
A few minerals like Iron, boron, zinc, cobalt, chlorine, nickel, manganese, copper, molybdenum, etc. are required in lesser quantities for proper growth by the plants and therefore, they are called microminerals. Further they are also called trace elements.