BOTANY Higher Secondary Second Year - Textbooks Online

Difference between monocot and dicot root
Monocot roots Dicot roots
1. Xylem is polyarch. 1. Xylem is usually tetrarch.
2. Pith is usually large at the centre. 2. Pith is usually absent.
3. Metaxylem vessels are generally 3. Metaxylem vessels are generally
circular in cross section. polygonal in cross section.
4. Conjunctive tissue is 4. Conjunctive tissue is usually
sclerenchymatous in Maize. parenchymatous.
5. There is no secondary growth. 5. Secondary growth is generally
present.
Self evaluation
I . Choose and write the correct options.
1. The root hairs originate from
a. trichoblasts b. endodermis
c. hypodermis d. pericycle.
2. The Casparian strips are found in the endodermis of
a. dicot stem b. dicot root
c. monocot stem d. dicot leaf.
3. The passage cells are found in endodermis of
a. dicot stem b. monocot stem
c. dicot root d. dicot leaf.
4. The polyarch condition is found in
a. monocot leaf b. dicot leaf
c. dicot stem d. monocot root
5. The inner most layer of the cortex is
a. epidermis b. hypodermis
c. endodermis d. pericycle
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