FREE NEET Biology Practice MCQ Test: Morphology Of Flowering Plants Exercise 4 Questions Answers With Detailed Explanations [PDF]

Answer: (d)

Answer: (a)

Like phylloclade, cladode is also a modification of stem. But here the branch or axillary bud is only modified into a flat, tree like structure with only one internode.

Answer: (d)

Answer: (b)

Members of Liliaceae possess tricarpellary, syncarpous gynoecium with superior ovary. The ovary is trilocular with two to many ovules in each loculus.

Answer: (d)

Answer: (c)

Liliaceae is the characteristics of monocotyledonous plants. Floral characters of this family are: tricarpellary, actinomorphic, polyandrous, superior ovary, axile placentation.

Answer: (d)

Answer: (c)

Coconut (Cocos nucifera) is commercial fibres yielding crop. Fibres originate from the upper epidermal surface of seed.

Answer: (b)

Answer: (c)

If gynoecium is situated in the centre and other parts of the flower are located on the rim of the thalamus almost at the same level, it is called perigynous. The ovary here is said to be half inferior, e.g., plum, rose, peach.

Answer: (b)

Answer: (a)

Answer: (c)

Answer: (c)

Vexillary or descending imbricate aestivation is a characteristic of family Fabaceae. In it, the posterior largest petal (standard) overlaps two lateral petals (wings) which in turn overlap two anterior petals (keel). It is also called pailionaceous corolla.

Answer: (c)

Answer: (d)

Gynoecium is the female reproductive organ of a flower. It may be apocarpous (pistils separated)e.g., Michelia or syncarpous (fused) e.g., tomato.

Answer: (d)

Racemose inflorescence is also called indefinite and indeterminate type. Growth of the peduncle is indefinite. Here the terminal bud will not modify into a flower. Flowers develop in acropetal succession i.e., mature flowers are towards the base and the younger ones towards the tip of the peduncle. Flowers open in centripetal succession i.e., opening of flowers proceeds from the periphery to the centre of the inflorescence. Peduncle may be unbranched or branched. Soybean belongs to family Fabaceae which has racemose inflorescence.

Answer: (a)

Answer: (b)

Answer: (c)

A: Gamosepalous: Sepals united

B: Polysepalous: Sepals free

C: Gamopetalous: Petals free

D: Polypetalous: Petals united

E: Epiphyllous: Stamens are attached to the perianth as in flower of lily.

F: Staminode: A sterile or abortive stamen, frequently resembles a stamen without its anther.