Morphology of Flowering Plants

The ovary is half inferior in:

1. Mustard
2. Sunflower
3. Plum
4. Brinjal

The roots that originate from the base of the stem are

1. Primary roots
2. Prop roots
3. Lateral roots
4. Fibrous roots

Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is :

1. Parietal
2. Free central
3. Basal
4. Axile

Sweet potato is a modified

1. adventitious root
2. rhizome
3. stem
4. taproot

Pneumatophores occur in

1. halophytes
2. free-floating hydrophytes
3. carnivorous plants
4. submerged hydrophytes

Coconut fruit is a

1. berry
2. nut
3. capsule
4. drupe

In Bougainvillea, thorns are the modifications of

1. adventitious root
2. stem
3. leaf
4. stipules

Root hairs develop from the region of :

1. Meristematic activity
2. Root cap
3. Maturation
4. Elongation

Which of the following is not a stem modification?

1. Tendrils of cucumber
2. Flattened structures of Opuntia
3. Pitcher of Nepenthes
4. Thorns of Citrus

Stems modified into flat green organs performing the functions of leaves are known as

1. phylloclades
2. scales
3. cladodes
4. phyllodes.

Cotyledon of maize grain is called

1. coleoptile
2. scutellum
3. plumule
4. coleorhiza.

Tricarpellary, syncarpous gynoecium is found in flowers of

1. Fabaceae
2. Poaceae
3. Liliaceae
4. Solanaceae

The standard petal of a papilionaceous corolla is also called

1. vexillum
2. corona
3. carina
4. pappus.

The term 'polyadelphous' is related to

1. gynoecium
2. androecium
3. corolla
4. calyx.

How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?

1. Three
2. Four
3. Five
4. Six

Radial symmetry is found in the flowers of

1. Brassica
2. Trifolium
3. Pisum
4. Cassia.

Free-central placentation is found in

1. Dianthus
2. Argemone
3. Brassica
4. Citrus.

Among China rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many plants have superior ovary?

1. Three
2. Four
3. Five
4. Six

Axile placentation is present in

1. pea
2. Argemone
3. Dianthus
4. lemon.

Roots play insignificant role in absorption of water in

1. pea
2. wheat
3. sunflower
4. Pistia.

Perigynous flowers are found in

1. China rose
2. rose
3. guava
4. cucumber.

Keel is the characteristic feature of flower of

1. Aloe
2. tomato
3. tulip
4. Indigofera.

Leaves become modified into spines in

1. onion
2. silk cotton
3. Opuntia
4. pea

[figure] is the floral formula of

1. Petunia
2. Brassica
3. Allium
4. Sesbania.

The hilum is a scar on the

1. seed, where funicle was attached
2. fruit, where style was present
3. fruit, where it was attached to pedicel
4. seed, where micropyle was present

Placenta and pericarp are both edible portions in

1. apple
2. banana
3. tomato
4. potato

When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as

1. vexillary
2. imbricate
3. twisted
4. valvate.

Which one of the following statements is correct?

1. The seed in grasses is not endospermic.
2. Mango is a parthenocarpic fruit.
3. A proteinaceous aleurone layer is present in maize grain.
4. A sterile pistil is called a staminode.

An example of edible underground stem is

1. carrot
2. groundnut
3. sweet potato
4. potato.

An aggregate fruit is one which develops from

1. multicarpellary syncarpous gynoecium
2. multicarpellary apocarpous gynoecium
3. complete inflorescence
4. multicarpellary superior ovary.