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Practice each question, then open the answer or worked solution.
Rearrange the following zones as seen in the root in the vertical section and choose the correct option.
A. Root hair zone
B. Zone of meristems
C. Rootcap zone
D. Zone of maturation
E. Zone of elongation
Options:
a. C, B, E, A, D
b. A, B, C, D, E
c. D, E, A, C, B
d. E, D, C, B, A
Solution;
Option (a) is the answer.
Solution coming soon.
In an inflorescence where flowers are borne laterally in acropetal
succession, the position of the youngest floral bud in the floral axis
shall be
a. Proximal
b. Distal
c. Intercalary
d. Anywhere
Option (b) is the answer.
The mature seeds of plants such as gram and peas possess no endosperm, because of
a. These plants are not angiosperms
b. There is no double fertilization in them
c. The endosperm is not formed in the
d. Endosperm gets used up by the developing embryo during seed
development
Option (d) is the answer.
Roots developed from parts of the plant other than radicles are called
a. Taproots
b. Fibrous roots
c. Adventitious roots
d. Nodular roots
Option (c) is the answer.
Venation is a term used to describe the pattern of arrangement of
a. Floral organs
b. Flower in inflorescence
c. Veins and veinlets in a lamina
d. All of them
Option (c) is the answer.
The endosperm, a product of double fertilisation in angiosperms, is absent
in the seeds of
a. Coconut
b. Orchids
c. Maize
d. Castor
Option (b) is the answer.
Many pulses of daily use belong to one of the families below (tick the
correct answer)
a. Solanaceae
b. Fabaceae
c. Liliaceae
d. Poaceae
Option (b) is the answer.
The placenta is attached to the developing seed near the
a. Testa
b. Hilum
c. Micropyle
d. Chalaza
Option (b) is the answer.
Which of the following plants is used to extract the blue dye?
a. Trifolium
b. Indigofera
c. Lupin
d. Cassia
Option (b) is the answer.
Match the following and choose the correct option
| Column I
A. Aleurone layer B. Parthenocarpic fruit C. Ovule D. Endosperm |
Column II
i. without fertilization ii. Nutrition iii. Double fertilization iv. Seed |
Options:
a. A-i, B-ii, C-iii, D-iv
b. A-ii, B-i, C-iv, D-iii
c. A-iv, B-ii, C-i, D-iii
d. A-ii, B-iv, C-i, D-iii
Option (b) is the answer.