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.

All living organisms have a cell wall surrounding the cell membrane

Which non-membranous organelle is found in both prokaryotic and eukaryotic cell?

Microbodies are membrane bound vesicles, that contain various enzymes, are present in both plant and animal cells.

Which of the following is not correct? (a) Robert Brown discovered the cell. (b) Schleiden and Schwann formulated the cell theory. (c) Virchow explained that cells are formed from pre-existing cells. (d) A unicellular organism carries out its life activities within a single cell.

Which of the following statement is related to sexual reproduction in animals ? (A) Single parent is involved (B) Gamete formation occur (C) Offspring are exact copies of their parent (D) Common among single celled organisms.

Which of the following is wrong statement ? a. All green plants and blue- green algae are producers. b.Green plants derived their food from organic compounds c.Producers synthesise their food by using inorganic elements d.Green plants transformed solar energy into chemical energy.

New cells generate from (a) bacterial fermentation (b) regeneration of old cells (c) pre-existing cells (d) abiotic materials