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.
Answer: (c) Membrane-certain organelles are organelles surrounded with the aid of using a double membrane. Nucleus, mitochondria, chloroplasts, etc., are examples of such organelles. These mobileular organelles are absent from prokaryotes. (a) Only eukaryotic cells have nuclei. They are absent from prokaryotes. (b) Cell partitions are handiest found in plant cells. They are absent from all animal cells. (d) All cells get up from pre-present cells.
