Answer:
Archaeplastida
Explanation:
Archaeplastida is a supergroup that includes Rhodophyta, Chlorophyta and Viridaeplanta. Rhodophyta includes red algae, Chlorophyta includes green algae while Viridaeplanta includes all the land plants. All of these are the autotrophic organisms and have chlorophyll pigments to perform photosynthesis. Chlorophyll a and b are common to all the members of Archaeplastida which in turn gives green color to the green algae and to the leaves of land plants. Phycoerythrin pigment, in addition to chlorophyll pigments, imparts a red color to red algae.
Enzymes are also known as Biological catalysts. An enzyme working at its maximum possible rate, where the substrate concentration is in excess is <span>V max.
</span><span>The reaction is slow because the molecules are moving slowly and they will not often collide with the active site of an enzyme, so the binding of an enzyme and substrate is rare.</span>