Analogy type questions:
$(1)$ Middle lamella : Calcium pectate :: Cytochrome : ........
$(2)$ Thiamine : Vitamin :: Manganese : ........

Which of the following is the first stable product in the $C_3$ and $C_4$ cycle of photosynthesis,respectively?

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.

Out of the two statements given here $:-$
$(A) \ C_4$ plants are more effective in productivity as compared to $C_3$ plants.
$(B) \ C_3$ plants show photorespiration at high $CO_2$ concentration.

$RuBP$ carboxylase,$PEPcase$,pyruvate dehydrogenase,$ATPase$,cytochrome oxidase,hexokinase,lactate dehydrogenase. Select/choose enzymes from the list above which are involved in $(a)$ Photosynthesis $(b)$ Respiration $(c)$ Both in photosynthesis and respiration.

Identify the location and function of the following structures in a chloroplast:
$(1)$ Thylakoid
$(2)$ Stroma