Question

Which of the following sentences is correct?

• A. Cells of all living organisms have a nucleus
• B. Both animal and plant cells have a well defined cell wall
• C. Cells are formed de novo from abiotic materials
• D. In prokaryotes there are no membrane bound cell organelles

Answer 1

Answer: (D)

• Prokaryotes are living cells but they lack an organised nucleus. The genetic material lies in the cytoplasm. So the statement is incorrect.
• A plant cell has a well defined cell wall while animal cell starts with the plasma membrane they lack a cell wall. So the statement is incorrect.
• Prokaryotes are a primitive cell which lacks membrane-bounded organelles. So the statement is correct.
• Cells are basically formed by pre-existing cell and biomolecules which are considered as biotic materials. So the statement is incorrect.
• Thus, the correct answer is an option C.