Which of the following statement is not true for stomatal apparatus?
A
Guard cells are not always surrounded by subsidiary cells
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Stomata are involved in gaseous exchange
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Inner walls of guard cells are thick
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Guard cells invariably possess chloroplasts and mitochondria
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A Guard cells are not always surrounded by subsidiary cells Stomata are present on the lower surface of the leaves, these help in the gaseous exchange. Stomata are surrounded by gaurd cells which are in turn surrounded by subsidiary cells, therefore their inner wall is thicker than the outer layer. However, Guard cell do posses chloroplast but mitochondria are absent.
So, the correct option is 'Guard cells invariably possess chloroplasts and mitochondria.'