In which one of the following nitrogen is not a constituent:
- Idioblast
- Bacteriochlorophyll
- Invertase
- Pepsin
The Correct Option is A
Solution and Explanation
Idioblasts, as isolated plant cells with various functions like storage of reserves, pigments, and minerals, may not necessarily contain nitrogen, and the other options indeed involve proteins/enzymes that contain nitrogen.
Therefore, the correct answer is (A): Idioblast
Top Questions on Nutrition
- 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 (Types of Markets) List-II (Characteristics) A. Industrial market I. It consists of individuals and organisations that buy or acquire goods and services that enter into the production of other products and services. B. Consumer market II. It consists of individuals and organisations who acquire goods purchased by others and sell them either to industrial consumers or ultimate consumers. C. Reseller market III. It consists of individuals and households who buy or acquire goods and services for their own personal or household use. D. Government market IV. It consists of central/state agencies and local bodies who purchase goods to meet the requirements of the government. - Which of the following is NOT a specific characteristic of polymeric formulae/defined formula diets?
- Which of the following are limiting essential amino acids in cereal grains and millets?
A. Methionine
B. Lysine
C. Threonine
D. Tryptophan
- 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.
Questions Asked in NEET exam
- An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature \(27^\circ\)C. The mass of the oxygen withdrawn from the cylinder is nearly equal to: [Given, \(R = \frac{100}{12} \text{ J mol}^{-1} \text{K}^{-1}\), and molecular mass of \(O_2 = 32 \text{ g/mol}\), 1 atm pressure = \(1.01 \times 10^5 \text{ N/m}^2\)]
- NEET (UG) - 2025
- Ideal-gas equation and absolute temperature
- The plates of a parallel plate capacitor are separated by d. Two slabs of different dielectric constant \(K_1\) and \(K_2\) with thickness \(d/2\) and \(d/2\) respectively are inserted in the capacitor. Due to this, the capacitance becomes two times larger than when there is nothing between the plates. If \(K_1 = 1.25 K_2\), the value of \(K_2\) is :
- NEET (UG) - 2025
- Capacitors and Capacitance
A full wave rectifier circuit with diodes (\(D_1\)) and (\(D_2\)) is shown in the figure. If input supply voltage \(V_{in} = 220 \sin(100 \pi t)\) volt, then at \(t = 15\) msec:
- NEET (UG) - 2025
- Semiconductor Diode
- 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
- Given below are two statements:
Statement I: In an ecosystem, there is unidirectional flow of energy of sun from producers to consumers.
Statement II: Ecosystems are exempted from the law of thermodynamics.
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.