Which of the following is correct: (a) Cells of all living organisms have a nucleus. (b) Both animal and plant cells have a well defined cell wall. (c) In prokaryotes, there are no membrane bound organelles. (d) Cells are formed de novo from abiotic materials.
Option 'c' is correct The prokaryotes are the unicellular organisms. The single cell performs the entirefunction of the organism. It does not contains membrane bound organelles as present in the eukaryotes. Option 'a' is incorrect Cells of all the living organism does not contains nucleus. The above stated 'option a' is incorrect because there are some organisms in the category of prokaryotes that do not have a definite nucleus . The genetic materials are dispersed in the cells of the prokaryotes. Option 'b' is incorrect The above stated 'option b' is an incorrect option because the plant cells possess a defined cell wall and are responsible for its rigid nature. But the animal cell lacks the rigid and defined cell wall. Option 'd' is incorrect The cell theory states that the cells are formed from pre-existing cells. The above stated 'option d' is an incorrect option because the cells are not produced from the abiotic materials. Final Answer Option 'c' is correct In prokaryotes, there are no membrane-bound organelles
