Advertisements
Advertisements
Question
Justify the following statements on the basis of external features
Flower is a modified shoot
Advertisements
Solution
Flower is the reproductive part of the angiospermic plant and it is defined as the modified shoot because
(a) like shoot, flower develops from an axillary or rarely terminal bud.
(b) flowers may get modified into fleshy buds or bulbils,
(c) A transition from foliage leaves to floral leaves is found in Paeonia.
(d) Nymphaea shows transition from sepals to petals and petals to stamens,
(e) In Passiflora and Cleome long intemodes occur below gynoecium and stamens.
APPEARS IN
RELATED QUESTIONS
What is meant by modification of root? What type of modification of root is found in the
(a) Banyan tree
(b) Turnip
(c) Mangrove trees
Justify the following statements on the basis of external features
Underground parts of a plant are not always roots
Roots are
How root climbers differ from stem climbers?
Correlate with respect to modification of root for storage of food.
Carrot: Tap root :: ______ : Adventitious root
Which part or zone of root is not correctly matched with its function?
Root formed from prolongation of the radicle is ______.
Roots developed from parts of the plant other than radicle are called ______.
Roots obtain oxygen from air in the soil for respiration. In the absence or deficiency of O2, root growth is restricted or completely stopped. How do the plants growing in marshlands or swamps obtain their O2 required for root respiration?
Name the body part modified for food storage in the following:
Carrot ______.
Name the body part modified for food storage in the following:
Radish ______.
Name the body part modified for food storage in the following:
Dahlia ______.
Name the body part modified for food storage in the following:
Portulaca ______.
Give two examples of roots that develop from different parts of the angiospermic plant other than the radicle.
The essential functions of roots are anchorage and absorption of water and minerals in the terrestrial plant. What functions are associated with the roots of aquatic plants. How are roots of aquatic plants and terrestrial plants different?
Rhizome of ginger is like the roots of other plants that grows underground. Despite this fact ginger is a stem and not a root. Justify.
After maturation, in primary lymphoid organs, the lymphocytes migrate for interaction with antigens to secondary lymphoid organ(s)/tissue(s) like:
- Thymus
- Bone marrow
- Spleen
- Lymph nodes
- Peyer’s patches
Choose the correct answer from the options given below:
