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4

Ginger is an underground stem. It is distinguished from root because

A. it lacks chlorophyll.

B. it stores food.

C. it has nodes and internodes.

D. it has xylem and vessels.

Correct Answer :

C. it has nodes and internodes.


In roots, node and internodes are absent.

Related Questions

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4

Pollen grains are produced within _________of stamen.

A. ovary

B. anther

C. filament

D. connective

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4

Fibrous root system is better adopted than tap root system for

A. transport of organic matter.

B. absorption of water and minerals.

C. storage of food.

D. anchorage of plant to soil.

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4

Pneumatophores are found in

A. the vegetation which is found in marshy and saline lake.

B. the vegetation which found in saline soil.

C. xerophytic condition.

D. hydrophytic condition.

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4

Which of the following part elongates directly and leads to the formation of primary roots?

A. bud

B. radicle

C. plumule

D. root hair

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4

The character of flower which is represented by floral formula but not by floral diagram is

A. aestivation

B. placentation

C. position of gynoecium

D. adhesion of stamen

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4

Stem tendrils are found in

A. cucumber

B. pumpkins

C. grapevines

D. all of these

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4

Which one of the following option shows the correct labelling of the structure marked as A, B, C & D? 
q10

A. A - Gynoecium, B - Megasporophyll, C - Ovule, D - Thalamus

B. A - Gynoecium, B - Stamen, C - Seed, D - Thalamus

C. A - Microsporophyll, B - Stamen, C - Ovule, D - Thalamus

D. A - Gynoecium, B - Stamen, C - Ovule, D - Thalamus

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4

Seeds are regarded as products of sexual reproduction because they

A. can be stored for long time.

B. are result of fusion of pollen tube.

C. are result of fusion of gametes.

D. give rise to new plants.

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4

Which of the following statement(s) is/are correct about the fruit?
  1. Fruit is a mature or ripened ovary, developed before fertilization.
  2. It consists of a wall or pericarp and seeds.
  3. When pericarp is thick and fleshy, it is differentiated into outer mesocarp, middle epicarp and the inner endocarp.
  4. In mango and coconut, the fruit is known as a berry.

A. Only (i)

B. Both (ii) and (iii)

C. Only (ii)

D. All of these

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4

Match column I with column II and choose the correct option.
Column-IColumn-II
A. Bud in theI. Pitcher plant axil of leaf and venus fly trap
B. Outer layer ofII. Cacti seed coat
C. SpinesIII. Testa (modified leaves)
D. Leaves modifiedIV. Simple leaf to catch insects
E. Fleshy leavesV. Garlic and onion with stored food

A. A I, B II, C III, D IV, E V

B. A V, B IV, C III, D II, E I

C. A IV, B III, C II, D I, E V

D. A IV, B II, C III, D I, E V

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4

Which of the following represents the floral characters of liliaceae?

A. Six tepals, zygomorphic, six stamens, bilocular ovary, axile placentation.

B. Actinomorphic, polyphyllous, unilocular ovary, axile placentation.

C. Tricorpellary, actinomorphic, polyandrous, superior ovary, axile placentation.

D. Bisexual, zygomorphic, gamophyllous, inferior ovary, marginal placentation.

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4

Main function of leaf is

A. exchange of gases

B. increase the beauty of a tree

C. manufacturing of food

D. nerve impulse induction

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4

The X is small and situated in a groove at one end of the endosperm. It consists of one large and shield shaped cotyledon known as Y and a short axis with a plumule and a Z. Identify X, Y and Z.

A. X - Scutellum, Y - Embryo, Z - Radicle

B. X - Embryo, Y - Scutellum, Z - Radicle

C. X - Scutellum, Y - Radicle, Z - Embryo

D. X - Radicle, Y - Embryo, Z - Scutellum

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4

Identify the kind of phyllotaxy shown in the given figures A, B, and C. 
q9

A. A-Alternate, B - Opposite, C - Whorled

B. A- Whorled, B - Opposite, C -Alternate

C. A-Alternate, B - Whorled, C - Opposite

D. A-Whorled, B -Alternate, C - Opposite

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4

Which of the following is the green expanded part of leaf with vein and veinlets?

A. Petiole

B. Node

C. Stipule

D. Lamina

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4

The root differs from stem in having

A. nodes and internodes

B. axillary buds

C. multicellular hairs

D. unicellular hairs

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4

Which part of plant is generally green when young and later often become woody and dark brown?

A. stem

B. seed

C. leaves

D. flower

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4

The region of the root-tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the

A. region of maturation.

B. region of elongation.

C. region of meristematic activity.

D. root-hairs.

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4

Which of the following plants is growing in swampy areas, where many roots come out of the ground and grow vertically upwards?

A. Potato

B. Opuntia

C. Rhizophora

D. Grass

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4

In which of the following plants, a slender lateral branch arises from the base of the main axis and after growing aerially arch downwards to touch the ground?

A. Mint and jasmine

B. Banana and pineapple

C. Grass and stawberry

D. Pistia and Eichhornia

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4

When a flower can be divided into two equal radial halves in any radial plane passing through the centre, it is known as

A. actinomorphic

B. zygomorphic

C. asymmetric

D. bisymmetric

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4

The given figures (A & B) show two types of compound leaves. Choose the option which identity the correct compound leaf and their example (c).
q8

A. A - Pinnately compound leaf, C - Neem

B. A - Palmately compound leaf, C - Neem

C. B- Pinnately compound leaf, C - Silk cotton

D. B- Palmately compound leaf, C - Silk cotton

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4

Match column-I with column-II and choose the correct option.
A. Gram, sem, moong,I. Medicine soyabean
B. Soyabean,groundnutII. Ornamental
C. IndigoferaIII. Fodder
D. SunhempIV. Fibres
E. Sesbania, TrifoliumV. Dye
F. Lupin, sweet potatoVI. Edible oil
G. MulethiVII. Pulses

A. A I, B II, C III, D IV, E V, F VI, G VII

B. A VII, B VI, C V, D IV, E III, F II, G I

C. A II, B IV, C VI, D I, E III, F V, G VII

D. A I, B III, C V, D VII, E II, F IV, G VI

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4

Which one of the following statement is correct?

A. Bulb of Allium cepa is a modified stem.

B. Cloves of Allium sativum are fleshy scale leaves.

C. Corm of Colocasia is a modified root.

D. Tendril in Vitis vinifera is a modified axillary bud.

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4

The flower is the reproductive unit in the ___________ meant for ___________ reproduction.

A. angiosperms and sexual

B. gymnosperms and sexual

C. algae and asexual

D. pteridophytes and asexual

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4

The part of the root which is most active in water absorption is called

A. root cap

B. maturation zone

C. meristematic zone

D. zone of elongation

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4

Which one of the following statement is not correct?

A. Each stamen which represents the male reproductive organ consists of a stalk or a filament and an anther.

B. An actinomorphic flower can be dissected into two equal halves from any plane.

C. Superior ovary is found in hypogynous flowers.

D. When stamens are attached to the petals, they are epiphyllous as in brinjal.

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4

Which of the following statements are correct?
  1. From the region of elongation, some of the epidermal cells form root hairs.
  2. Pneumatophores are seen in Rhizophora.
  3. Adventitious roots are seen in the banyan tree.
  4. Maize and sugarcane have prop roots.

A. (i) and (iv)

B. (i), (iii) and (iv)

C. (iii) and (iv)

D. (ii) and (iii)

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4

A - Which one of the option shows the correct labelling of the parts marked as A, B, C and D in a typical structure of dicotyledonous seeds ? 
q12

A. A - Hilum, B - Micropyle, C - Radicle, D - Cotyledon, E - Plumule

B. A - Hilum, B - Micropyle, C - Plumule, D - Cotyledon, E - Radicle

C. A - Micropyle, B - Hilum, C - Plumule, D - Cotyledon, E - Radicle

D. A - Hilum, B - Micropyle, C - Plumule, D - Radicle, E - Cotyledon

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4

Which type of function is performed by the fleshy leaves of onion and garlic?

A. Storage

B. Reproduction

C. Photosynthesis

D. Protection