Which of the following photosynthetic bacteria have both $PS-I$ and $PS-II$?

  • A
    Green sulphur bacteria
  • B
    Purple sulphur bacteria
  • C
    Cyanobacteria
  • D
    Purple non-sulphur bacteria

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Similar Questions

Plants are known as purifiers of air due to the process of:

Name the two important enzymes of $C_3$ and $C_4$ pathways, respectively. What important role do they play in fixing $CO_2$?

Find out the correct match from the following table $:-$
Column-$I$Column-$II$Column-$III$
$i$. Calvin cycleAlgae$^{14}CO_2$
$ii$. Hatch and Slack pathwaySorghumKranz anatomy
$iii$. Photorespiration$C_3$ plant$OAA$
$iv$. $CO_2$ fertilization$Cu$$CO_2$

Give scientific reasons:
$(1)$ The productivity of $C_4$ plants is more than $C_3$ plants.
$(2)$ It is necessary that the Calvin cycle runs for six times.

Assertion : Dark reaction occurs only at night in the stroma of chloroplast.
Reason : $CO_2$ fixation occurs only during $C_3$ cycle.

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