Morphology of Flowering Plants · Question 31

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.