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Published on: 16/09/2019
Anatomy of Flowering Plants
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1.
Define fruit.
2.
Name some common vegetables showing underground modification of stem.
3.
What is the arrangement of stamens in pea plant?
4.
What is inflorescence?
5.
What is the function of pneumatophores?
6.
What is morphology?
7.
Draw a well-labelled diagram of sclerenchyma.
8.
Give the functional difference between phellogen and phelloderm.
9.
Mention the functions of cortex region of monocot root?
10.
Tunics of some of the aged trees species appear to be composed of several fused trunks. Is it a physiological or anatomical abnormality? Expalin in detail.
11.
Write one differences between mesophyll of dicot leaf and a monocot leaf.
12.
Differentiate between pith in dicot root and moncot root.
13.
How does the periderm formation take place in the dicot stems?What are its components?
14.
Name those parenchymatous cells which are associated with sieve tube in angiosperms. Mention their roll also
15.
How the study of anatomy is useful to us ?
1.
Fruit is a mature ovary which is developed after fertilization.
2.
Potato, Ginger, Turmeric, Zimicand
3.
The stamens are arranged in bundles of two in the pea flowers and it is termed diadelphous.
4.
Arrangement of flowers on the floral axis is called inflorescence
5.
The primary function of pneumatophores is to help plants to get the oxygen needed for the respiration process. It stores the gases that help the plants to survive in floods.
6.
Morphology is the study of the form, structure and configuration of an organism
7.

8.
Difference between phellogen and phelloderm is
| Phellogen | Phelloderm |
| It is a ring of meristematic cells that divide and form cork on outside and secondary cortex on the inner side. | It is a tissue made up of suberised parenchymatous cells that transfer nutrients and water to phellogen cells for their activity. |
9.
The cortex of a monocot root has three following functions:
(i) Conduction of water from the root hairs to the inner tissues.
(ii) Storage of food.
(iii) Outermost layer of the cortex produce protective exodermis in the older roots.
10.
This is an anatomical abnormality.It occurs due to embedding of bases of stem branches in the tree trunk due to continuous secondary growth in the latter as well as secondary growth of bases of the branches.
11.
In dicot leaves, mesophyll is differentiated into palisade and spongy parenchyma.In case of monocot leaves, mesophyll is not differentiated and all cells are like spongy parenchyma.
12.
Diffrences in pith in monocot and dicot root are
| Pith in Monocot Root | Pith in Dicot Root |
| The centre of root is occupied ny the pith. | It is often absent. When present , it is very small. |
| Intercellular spaces are present in between pith cells. | Intercellular spaces are absent. |
| The pith cells store food. | Th pith cells store food as well as waste materials. |
13.
Cork cambium develops in cortex and cuts off cells on both outer and inner sides of stem.The outer cells differentiate into cork or phelloderm.The various componenets of periderm are phellogen , phellem and phelloderm.
14.
Companion cells are associated with sieve tube in the angiosperms. They help sieve tubes in the translocation
15.
The study of anatomy helps to us in
(i) solving taxonomic problems.
(ii) analysing the microstructure , adulteration of spice, tea, tobacco, etc.
(iii) extraction of compounds for use as medicine.
(iv) differentiation of inferior quality wood from the superior quality.
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