Pneumatophores are a modification of

1.  Prop root for exchange of gases

2.  Taproot for retention of moisture

3.  Adventitious root for breathing 

4.  Taproot for respiration

Bougainvillea and Citrus plants are protected from browsing animals as 

1.  Adventitious buds get modified into thorns

2.  Axillary buds get modified into spines

3.  Lateral buds get modified into pointed structures

4.  Apical buds get modified into thorns 

Which of the following statement is incorrect?

1.  In Calotropis, a pair of leaves arise at each node and lie opposite to each other

2.  A bud is present in the axil of both simple and compound leaves

3.  leaves are small and long-lived in Australian Acacia

4.  Veinlets form a network in the leaves of most dicotyledonous plants 

Pentamerous flower, superior ovary with the swollen axile placenta and epipetalous androecium is characteristics of

1. Liliaceae

2. Solanaceae

3. Cucurbitaceae

4. Malvaceae

A type of placentation in which placenta forms a ridge along the ventral suture of ovary and ovules are borne on this ridge forming two rows

1. Parietal

2. Marginal

3. Basal

4. Free central

Which of the following statement is true? 

1. In Alstonia the petioles expand, become green, and synthesize food.
2. Leaves are modified into tendrils for climbing as in pumpkins.
3. Imbricate aestivation of petals occur in the flower of Calotropis.
4. In palmately compound leaves the leaflets are attached at a common point

Find out the wrongly matched pair :-

1. Tuber - Potato 

2. Leaf buds - Banana

3. Bulbil - Agave

4. offset - Water hyacinth

The edible part of the carrot is a modified:-

1. Adventitious root

2. Underground stem

3. Fibrous root

4. Tap root

Leaves originate from-

1. shoot apical meristems and arranged acropetal order

2. shoot apical meristem and arranged in a basipetal order

3. root apical meristem

4. stem

The aestivation in petals of ladyfinger and Calotropis plants are respectively:-

1. a &d

2. b & a

3. d & a

4. d & b