Q. Consider the following four statements (a–d) and select the option which includes all the correct ones only. (a) Single cell Spirulina can produce large quantities of food rich in protein, minerals, vitamins etc. (b) Body weight-wise the microorganism Methylophilus methylotrophus may be able to produce several times more proteins than the cows per day (c) Common button mushrooms are a very rich source of vitamin C (d) A rice variety has been developed which is very rich in calcium
A) Statements (c), (d)
B) Statements (a), (c) and (d)
C) Statements (b), (c) and (d)
D) Statements (a), (b)
Explanation
[Solution from source] Spirulina is a protein-, mineral- and vitamin-rich single-cell food, and 250 kg of Methylophilus methylotrophus can make about 25 tonnes of protein a day, far more than a cow. Button mushrooms are not a rich vitamin C source, and the biofortified rice variety is rich in iron, not calcium. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.