Choose the correct option from the following:
$(i)$ The light reactions of photosynthesis occur in the thylakoid / stroma of the chloroplast.
(ii) The membrane-less organelle is the lysosome / ribosome.

Photosynthesis without the evolution of oxygen is a characteristic of which of the following?

Chemosynthesis and photosynthesis are alike in that both

Photosynthesis is a:

Which of the following groups of organisms does not produce $O_2$ during photosynthesis?

Choose the incorrect sentences for chloroplast.
$(1)$ The chloroplast membranous system consists of grana and the fluid stroma.
$(2)$ Pigments are present in the stroma.
$(3)$ In the stroma,enzymatic reactions incorporate $CO_2$ into the plant,leading to the synthesis of sugar.
$(4)$ Light is not required for the formation of sugar in the stroma.