Which of the following is correct:
(a) Cells of all living organisims have a nucleus.
(b) Both animal and plant cells have a well denifed cell wall.
(c ) In prokaryotes, there are no membrane bound organelles.
(d) Cells are formed de novo from abiotic materials.

Which of the following has/have lysosomes activities in plant cells ?

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

Which one of the following structures is an organelle within an organelle " " Or Which of the following cell organelle lacks DNA and bounding membrane

Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen ?

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen ?

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

[A] : Usually the cells of animals and plants have controlled growth . [R] : In certain special circumstances the cells begin to grow and multiply continuously , forming tumors.