You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two ?
You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two ?
- [NEET 2014]
- A
Secondary xylem
- B
Secondary phloem
- C
Protoxylem
- D
Cortical cells
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- [NEET 2015]
The vertical section of a dorsoventral leaf through the lamina shows three main parts namely, epidermis, ...$A$... and vascular system. The epidermis, which covers the upper surface is ...$B$... and lower surface is covered by ...$C$... of the leaf.
Choose the correct combination of $A , B$ and $C$
The vertical section of a dorsoventral leaf through the lamina shows three main parts namely, epidermis, ...$A$... and vascular system. The epidermis, which covers the upper surface is ...$B$... and lower surface is covered by ...$C$... of the leaf.
Choose the correct combination of $A , B$ and $C$
Primary plant body is made up of
$(i)$ The ...$a$... help in maintaining the pressure gradient in the sieve tubes
$(ii)$ Stomata regulate the process of ....$b$..... and gaseous exchange
$(i)$ The ...$a$... help in maintaining the pressure gradient in the sieve tubes
$(ii)$ Stomata regulate the process of ....$b$..... and gaseous exchange