Tag: internal structure of stem(dicot and monocot)
Questions Related to internal structure of stem(dicot and monocot)
Y- shaped arrangement of xylem vessles is found in
The number of growth rings (sum of the rings of spring wood and autumn wood) in the year 2000 is found to be 20. What will be the number of annual rings in 2018?
Read the following statements and select the correct option.
A. Damage to chordae tending of semilunar valves in aorta causes back flow of blood in left ventricle.
B. Closure of atrio-ventricular valves during ventricular systole generates first heart sound
In a monocot stem, the vascular bundles are?
In monocot stem
(a) Vascular bundles are scattered.
(b) Hypodermis is sclerenchymatous.
(c) Endodermis is well developed.
(d) Stele is atactostele.
Select the mismatched pair.
Plants have evolved various defences to lessen the impact of predation by herbivores. Choose the correct option for the defence measures in the given plants. Where M-Morphological, C-Chemical, A-Anatomical, P-Physiological.
Acacia | Cactus | Calotropins | |
---|---|---|---|
$(1)$ | P | P | M |
$(2)$ | A | M | C |
$(3)$ | P | C | C |
$(4)$ | M | M | C |
Which type of vascular bundle is found in monocot stem?
Read the following features and choose the correct option about anatomy of dicot and monocot stem.
(i) Collenchymatous hypodermis.
(ii) Vascular bundles are scattered.
(iii) Eustele.
(iv) Ground tissue is not differentiated.
(v) Pericycle absent
Conjoint, collateral, closed and endarch vascular bundles scattered in the ground tissue are found in