Nitrogenase enzyme is a
- magnesium-iron protein
- molybdenum-iron protein
- iron-copper protein
- nickel-iron protein
The Correct Option is B
Solution and Explanation
Top Questions on Nutrition
- Which among the following is not a characteristic feature of fatty liver?
- Which of the following is NOT a clinical manifestation of Kwashiorkor?
- Arrange the major steps involved in implementation of a public nutrition programme in correct order.
A. Determine strategies for the programme; develop the action plan and implement it
B. Prioritize the issues or nutrition health problems, to identify those that the programme will address
C. Identify the issues or health problems in the community
D. Identify risk and contributing factors and set the goals and objectives for the programme
E. Sustain the entire programme or its components; and evaluate the programme
- Match the LIST-I with LIST-II
List-I (Standardization Logo) List-II (Description/Application) A. 
I. Marked where essential vitamins and minerals have been added to the food. B. 
II. Displayed on the pack for foods that are free from harmful ingredients, food additives, or harmful processing aids. C. 
III. 100% Organic (food is free of artificial preservatives, flavors, colors, pesticides, and chemical fertilizers). D. 
IV. Marked on vegetable oil, pulses, cereals, veggies, honey, fruits, and vegetables indicating their quality. - Arrange steps involved in meal planning in the correct sequence.
A. Determining the Recommended Dietary Allowances (RDA)/Estimated Average Requirement (EAR) as given in the latest ICMR, NIN tables
B. Recording personal data
C. Selecting specific foods using the food exchanges provided in each meal
D. Distributing the food exchanges between different meals
E. Estimating the amount of different food exchanges
Questions Asked in WBJEE exam
What are the charges stored in the \( 1\,\mu\text{F} \) and \( 2\,\mu\text{F} \) capacitors in the circuit once current becomes steady?
- WBJEE - 2026
- Capacitors and Capacitance
Which one among the following compounds will most readily be dehydrated under acidic condition?
- WBJEE - 2026
- Organic Reactions
Manufacturers supply a zener diode with zener voltage \( V_z=5.6\,\text{V} \) and maximum power dissipation \( P_{\max}=\frac14\,\text{W} \). This zener diode is used in the circuit shown. Calculate the minimum value of the resistance \( R_s \) so that the zener diode will not burn when the input voltage is \( V_{in}=10\,\text{V} \).
- WBJEE - 2026
- Zener Diodes
Two charges \( +q \) and \( -q \) are placed at points \( A \) and \( B \) respectively which are at a distance \( 2L \) apart. \( C \) is the midpoint of \( AB \). The work done in moving a charge \( +Q \) along the semicircle CSD (\( W_1 \)) and along the line CBD (\( W_2 \)) are
- WBJEE - 2026
- electrostatic potential and capacitance
A piece of granite floats at the interface of mercury and water. If the densities of granite, water and mercury are \( \rho, \rho_1, \rho_2 \) respectively, the ratio of volume of granite in water to that in mercury is
- WBJEE - 2026
- Buoyancy and Floatation
Concepts Used:
Mineral Nutrition
The naturally occurring inorganic nutrient found in the soil and food that is necessary for the proper functioning of animal and plant bodies is defined as nutrition. Minerals are vital elements essential for the body.
Read More: Mineral Nutrition
Role of Nutrients:
- Balancing function
- Maintenance of osmotic pressure
- Influencing the pH of the cell sap
- Construction of the plant body
- Catalysis of the biochemical reaction
- Effects of Toxicity