Which one of the following is a wrong statement?
Correct answer: C. Phosphorus is a constituent of cell membranes, certain nucleic acids, and all proteins
- A. Anabaena and Nostoc are capable of fixing nitrogen in a freeliving state also
- B. Root nodule-forming nitrogen fixers live as aerobes under freeliving conditions
- C. Phosphorus is a constituent of cell membranes, certain nucleic acids, and all proteins
- D. Nitrosomonas and nitrobacteria are chemo autotrophs
Explanation
Phosphorus is present in the plasma membrane in the form of a phospholipid bilayer. It is an essential component of all nucleic acids- not 'certain' nucleic acids. Moreover, phosphorus is only sometimes found in proteins.
Last updated
About Man and His Environment
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
Practise Man and His Environment
382 free Man and His Environment MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
Conversion of ammonium into nitrates is:
In a forest, there are a lot of plants; trees, shrubs, and herbs. What will the Palm trees face if they grow in the same forest?
The animals that feed on organic debris from decomposing plants and animals are called:
Process ensuring the survival of species over long periods of time, even though individual members of the species die.
The position of an organism in a food chain of an ecosystem called: