C4 Pathway

Question 1

Plants that are adapted to dry tropical regions have …pathway mentioned earlier.

Answer 1

C 4

Question 2

Though these plants have the… as the first CO2 fixation product
they use the …as the main biosynthetic pathway.

Answer 2

C4 oxaloacetic acid
C3 pathway or the Calvin cycle

Question 3

C4 plants are special:
1.2.3.4.5.

Answer 3

1.They have a special type of leaf anatomy
2.They tolerate higher temperatures
3.They show a response to high light intensities
4.They lack a process called photorespiration
5.They have greater productivity of biomass.

Question 4

bundle sheath cells?

Answer 4

The particularly large cells around the vascular bundles of the C4 plants are called

Question 5

The leaves which have … anatomy are said to have ‘Kranz’ anatomy.

Answer 5

Bundle sheath cells anatomy

Question 6

‘Kranz’ means ‘…’ and is a reflection of the …

Answer 6

wreath,
arrangement of cells

Question 7

The bundle sheath cells may form …; they are characterised by having 1…,2… and 3….

Answer 7

several layers around the vascular bundles,
1.a large number of chloroplasts,
2.thick walls impervious to gaseous exchange,
3.no intercellular spaces

Question 8

C4 plants –… – the Kranz anatomy and the distribution of mesophyll cells is observed.

Answer 8

maize or sorghum