What does the cell wall do? and whats a cytoplasm?

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

Common commercial benefits of microorganisms include synthesis ofa. insulin. b. antibiotics. c. aspirin. d. antibiotics and aspirin. e. antibiotics and insulin.

Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis