Morphology Of Flowering Plants Root Stem And Leaf Question 504
Question: Read the assertion and reason carefully:
Assertion : Maize shows Kranz anatomy. Reason : In monocot leaves, bundle sheath cells lack chloroplasts.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: B
Solution:
In Maize leaf the undifferentiated mesophyll occurs in concentric layers around vascular bundles having large centrifugal chloroplasts in its large bundle sheath cells.
Such an arrangement is called Kranz anatomy.
In monocot leaves, bundle sheath may be single or double layered.
The cells generally possess chloroplasts.