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MCQ Single Correct
1

Rearrange the following zones as seen in the root in vertical section and choose the correct option.

A. Root hair zone

B. Zone of meristems

C. Root cap zone

D. Zone of maturation

E. Zone of elongation

2
In an inflorescence where flowers are borne laterally in an acropetal succession, the position of the youngest floral bud shall be
3

The mature seeds of plants such as gram and peas possess no endosperm, because

4
Roots developed from parts of the plant other than radicle are called
5
Venation is a term used to describe the pattern of arrangement of
6
Endosperm, a product of double fertilisation in angiosperms is absent in the seeds of
7
Many pulses of daily use belong to one of the families below.
8
The placenta is attached to the developing seed near the
9
Which of the following plants is used to extract the blue dye?
10

Match the following columns.

Column I Column II
A. Aleurone layer 1. Nutrition
B. Parthenocarpic fruit 2. Without fertilisation
C. Ovule 3. Seed
D. Endosperm 4. Double fertilisation

subjective-very-short
11
Roots obtain oxygen from air in the soil for respiration. In the absence or deficiency of $\mathrm{O}_2$, root growth is restricted or completely stopped. How do the plants growing in marsh lands or swamps obtain their $\mathrm{O}_2$ required for root respiration?
12
Write floral formula for a flower which is bisexual, actinomorphic sepals five, twisted aestivation, petals five valvate aestivation; stamens six, ovary tricarpellary, syncarpous, superior, trilocular with axile placentation.
13
In Opuntia, the stem is modified into a flattened green structure to perform the function of leaves, (i.e., photosynthesis). Cite some other examples of modifications of plant parts for the purpose of photosynthesis.
14
In swampy areas like the sunderbans in West Bengal, plants bear special kind of roots called .........
15
In aquatic plants like Pistia and Eichhornia, leaves and roots are found near ...........
16
Reticulate and parallel venation are the characteristic of ............. and ............. respectively.
17
Which parts in ginger and onion are edible?
18
In epigynous flower, ovary is situated below the ........... .
19

Add the missing floral organs of the given floral formula of Fabaceae.

20

Name the body part modified for food storage in the following

(a) Carrot ............. (b) Colocasia ............... (c) Sweet potato ............. (d) Asparagus ............. (e) Radish .............. (f) Potato ............. (g) Dahlia ........... (h) Turmeric ............. (i) Gladiolus ............ (j) Ginger ............. (k) Portulaca ............

subjective-short
21
Give two examples of roots that develop from different parts of the angiospermic plant other than the radicle.
22
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?
23
Draw diagrams of a typical monocot and dicot leaves to show their venation pattern.
24
A typical angiosperm flower consists of four floral parts. Give the names of the floral parts and their arrangements sequentially.
25

Given below are a few floral formulae of some well known plants. Draw floral diagrams from these formulae.

(i) $\oplus \quad \mathrm{K}_{(5)} \mathrm{C}_{(5)} \quad \mathrm{A}_5 \mathrm{G}_\underline{(2)}$

(ii) $\mathrm{K}_{(5)} \mathrm{C}_{1+2+2} \mathrm{~A}_{(9)+1} \mathrm{G}_\underline{1}$

(iii) $\oplus \mathrm{K}_5 \mathrm{C}_5 \quad \mathrm{~A}_{5+5} \mathrm{G}_{(5)}$

26
Reticulate venation is found in dicot leaves while in monocot leaves venation is of parallel type. Biology being a 'Science of exceptions', find out any exception to this generalisation.
27
You have heard about several insectivorous plants that feed on insects. Nepenthes or the pitcher plant is one such example, which usually grows in shallow water or in marsh lands. What part of the plant is modified into a pitcher? How does this modification help the plant for food even though it can photosynthesise like any other green plant?
28
Mango and coconut are 'drupe' type of fruits. In mango, fleshy mesocarp is edible. What is the edible part of coconut? What does milk of tender coconut represent?
29
How can you differentiate between free central and axile placentation?
30

Tendrils are found in the following plants. Identify whether they are stem tendrils of leaf tendrils.

(a) Cucumber (b) Peas (c) Pumpkins (d) Grapevine (e) Watermelon

31
Why is maize grain usually called as a fruit and not a seed?
32
Tendrils of grapevines are homologous to the tendril of pumpkins, but are analogous to that of pea. Justify the above statement.
33
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.
34

Differentiate between

(a) Bract and bracteole (b) Pulvinus and petiole (c) Pedicel and peduncle (d) Spike and spadix (e) Stamen and staminoid (f) Pollen and pollenium

subjective-long
35

Distinguish between families - Fabaceae, Solanaceae, Liliaceae on the basis of gynoecium characteristics (with figures). Also write economic importance of any one of the above family.