Morphology of Flowering Plants
- Which of the following statements
are correct regarding the roots
shown in the given figure?
I. These are modified fibrous
roots that harbour nitrogen
fixing bacteria.
II. These are modified adventitious
roots that store food.
III. They are found in plants growing in mangroves or
saline swamps near the sea shore.
IV. They give out CO 2 through pneumathodes near their tips.
(a) I and III (b) II and III
(c) III and IV (d) II, III and IV - Dichotomous stem branching in which the growing point
gets divided into two in the region of branching is rare in
angiosperms, yet it can be observed in
(a) Dalbergia (b) Asclepias syriaca
(c) Zizyphus (d) Carissa carandas. - Select the incorrectly matched pair.
(a) Anthophore – Internode between calyx
and corolla – Silene
(b) Gynophore – Internode between androecium and
gynoecium – Cleome
(c) Androphore – Internode between calyx and
androecium – Cassia
(d) Carpophore – Thalamus prolonged into gynoecium
to form a central axis – Coriander - The leaves possess a certain arrangement of veins and vein-
lets on its lamina to serve for
(a) conduction of water and reduce the effect of wilting
(b) translocation of organic nutrients
(c) skeletal support
(d) all of these. - Refer to the given aestivations (A-D) and select the correct
statements regarding them.
A B C D
I. A is valvate aestivation that occurs in corolla of
Brassica.
II. B is vexillary aestivation that occurs in corolla of China
rose.
III. D is ascending imbricate aestivation that occurs in
petals of Cassia.
IV. C is quincuncial aestivation that occurs in corolla of
Solanum nigrum.
(a) I and III (b) II and IV
(c) I, II and III (d) All of these- Study the given figures, showing different inflorescences
and select the option which correctly identifies them.
Spike A RacemeB CCatkin