Botany - Photosynthesis in Higher Plants Question with Solution | TestHub

C4  plants like sugarcane are special: They have a special type of leaf anatomy, they tolerate higher temperatures, they show a response to high light intensities, they lack a process called photorespiration and have greater productivity of biomass. The particularly large cells around the vascular bundles of the C4 plants are called bundle sheath cells, and the leaves which have such anatomy are said to have ‘Kranz’ anatomy. ‘Kranz’ means ‘wreath’ and is a reflection of the arrangement of cells.  The bundle sheath cells may form several layers around the vascular bundles; they are characterized by having a large number of chloroplasts, thick walls impervious to gaseous exchange, and no intercellular spaces. You may like to cut a section of the leaves of C4  plants – maize or sorghum – to observe the Kranz anatomy and the distribution of mesophyll cells. Rice is a C3 plant.