Morphology of Plants - Leaf
Structure and modifications of plant leaves, including leaf bases, stipules, petioles, and their various forms and functions
Questions
The sheathing leaf base is a characteristic of
- gulmohar
- banana
- crotolaria
- polygonum
What happens to the stipule in rose at the time of unfolding of lamina?
- They fall down before unfolding of lamina.
- They fall down just after the unfolding of lamina.
- They remain attached to the leaf for the whole life of leaf.
- They develop into sepals.
Which kind of leaf base surrounds the stem completely?
- Connate
- Sheathing
- Amplexicaul
- Pulvinus
What is the lateral outgrowth on each side of leaf base called?
- Petiole
- Stipule
- Pulvinus
- Spines
What are the stipules that fall down after unfolding of lamina called?
- Caducous
- Deciduous
- Persistent
- Decurrent
Which type of stipules are found in China Rose?
- Adnate
- Scaly
- Free lateral
- Spiny
What are two large green leafy stipules which help in manufacture of food in pea called?
- Ochreate stipules
- Interpetiolar stipules
- Foliaceous stipules
- Adnate stipules
Winged petiole is found in
- babool
- pistia
- oranges
- nepenthes
The adaptation of petiole found in Xerophytic plants is called
- phylloclade
- phyllode
- rachis
- pulvinus
Petiole is modified into tendril in
- lemons
- nepenthes
- acacia
- singhada
Which of the following originates from the axis of bud?
- Flower
- Phylloclade
- Phyllode
- Stolon
What is the function of stipule in plants?
- Photosynthesis
- Mechanical support
- Protection
- All of the above
What is the proximal portion of a grass leaf usually surrounding the stem called?
- Stipels
- Rachis
- Sheath
- Connate
What is a swollen leaf base called?
- Stipule
- Petiole
- Pulvinus
- False stem
Spongy petioles are found in
- xerophytic plants
- aquatic plants
- halophytes
- insectivorous plants