Which of the following is absent in the primary and secondary structure of stem of Pinus
Which of the following is absent in the primary and secondary structure of stem of Pinus
- [AIIMS 2000]
- A
Sieve tubes
- B
Mucilage duct
- C
Companion cells
- D
Phloem parenchyma
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Which of the following statements is not true for stomatal apparatus?
Which of the following statements is not true for stomatal apparatus?
- [NEET 2013]
Vascular bundle, in which two patches of phloem are present on both sides of xylem is
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According to histogen theory, stem epidermis is derived from
According to histogen theory, stem epidermis is derived from
In plants like Nymphaea which is attached emerged hydrophyte, the stomata are present on
In plants like Nymphaea which is attached emerged hydrophyte, the stomata are present on
Term 'parenchyma' was coined by
Term 'parenchyma' was coined by