Question:
A prokaryotic autotrophic nitrogen fixing symbiont is found in
A prokaryotic autotrophic nitrogen fixing symbiont is found in
Updated On: Jun 23, 2024
- Alnus
- Cycas
- Cicer
- Pisum.
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Cycas forms facultative symbiotic asssociation with autotrophic nitrogen fixing cyanobacteria. Cycas provides fix carbon and a stable environment to the cyanobacteria in exchange for fixed nitrogen. These cyanobacteria are endosymbionts and live within the roots of Cycas. In addition to normal roots, Cycas develops specialised symbiotic organs at a young age called precoralloid roots which transform into coralloid roots upon successful colonisation by cyanobacteria.
Was this answer helpful?
0
0
Top Questions on Nutrition
- Match List I with List II :Choose the correct answer from the options given below :
List - I Organisms List – II Mode of Nutrition A. Euglenoid i. Parasitic B. Dinoflagellate ii. Saprophytic C. Slime mould iii. Photosynthetic D. Plasmodium iv. Switching between photosynthetic and heterotrophic mode - NEET (UG) - 2024
- Biology
- Nutrition
- Which of the following is a protein deficiency disease?
- Match the nutrients given in List-I with the source in List-II:
List-I List-II 1 Vitamin A p Bitter gourd 2 Single cell protein q Beans 3 Vitamin C r Carrots 4 Protein s Spirulina spp
Choose the correct option from the following :- KCET - 2024
- Biology
- Nutrition
- Another name for Vitamin D3 is:
- Match List I with List IIChoose the correct answer from the options given below:
List I Type of Food List II: % trans fatty acids/gram A French Fries (i) 2 B Pizza (ii) 28 C Muffin (iii) 9 D Chocolate Bar (iv) 14
View More Questions
Questions Asked in NEET exam
- Two identical charged conducting spheres A and B have their centres separated by a certain distance. Charge on each sphere is \(q\) and the force of repulsion between them is \(F\). A third identical uncharged conducting sphere C is brought in contact with sphere A first and then with sphere B and finally removed from both. New force of repulsion between spheres A and B (Radius of A and B are negligible compared to the distance of separation so that they can be considered as point charges) is best given as:
- NEET (UG) - 2025
- Coulomb’s Law
- 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 After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature \(27^\circ\)C. The mass of the oxygen withdrawn from the cylinder is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
- 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
- Two gases A and B are filled at the same pressure in separate cylinders with movable pistons of radii \(r_A\) and \(r_B\) respectively. On supplying an equal amount of heat to both the cylinders, their pressures remain constant and their pistons are displaced by 16 cm and 9 cm respectively. If the change in their internal energies is the same, then the ratio \(r_A / r_B\) is:
- NEET (UG) - 2025
- Thermodynamics
- Given below are two statements:
Statement I: Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it.
Statement II: Fig wasp and fig tree exhibit a mutual relationship as the fig wasp completes its life cycle in the fig fruit and the fig fruit gets pollinated by the fig wasp.
View More Questions
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