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What is the correct answer?

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

Correct Answer :

C. position of gynoecium


The character of flower which is represented by floral formula but not by the floral diagram is the position of gynoecium.

Related Questions

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4

Which of the following statement(s) is /are correct?
  1. Many plants belong to family fabaceae are good ornamentals (Tulip, Gloriosa), source of medicine (Aloe) and vegetables (Asparagus).
  2. The plumule and radicle are enclosed in sheaths which are called coleorhiza and coleoptile respectively.
  3. A flower having either only stamens or only carpels is unisexual.
  4. Basal, alternate, linear, exstipulate with parallel venation types of leaves is found in the family liliaceae.

A. Only (i)

B. Both (i) and (ii)

C. Both (iii) and (iv)

D. All of these

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4

Statement-1 : Ginger has a prostrate-growing rhizome.
Statement-2 : Shoot growth is not effected by gravity.

A. Statement-1 and statement-2 are true and Statement-2 is a correct explanation for statement-1.

B. Statement-1 and statement-2 are true but statement-2 is a correct explanation for statement-1.

C. Statement-1 is true and statement-2 is false.

D. Both the statements are false.

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4

A sterile stamen is known as

A. staminode

B. anther

C. pollen grain

D. filament

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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 region of the root-tip which is involved in the formation of root hairs by epidermal cells is called the

A. region of maturation.

B. region of meristematic activity.

C. region of elongation.

D. none of the above.

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4

The given figure shows the parts of mango and coconut. Choose the option which shows the correct labelling of A, B, C and D marked in the figures. 
q11

A. A - Epicarp, B - Mesocarp, C - Seed, D - Endocarp

B. A - Epicarp, B - Mesocarp, C - Ovule, D - Endocarp

C. A - Epicarp, B - Mesocarp, C - Ovary, D - Endocarp

D. A - Epicarp, B - Mesocarp, C - Embryo, D - Endocarp

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4

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

A. these plants are not angiosperms.

B. there is no double fertilization in them.

C. endosperm is not formed in them.

D. endosperm gets used up by the developing embryo during seed development.

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4

Which of the following statements are correct about the leaf?
  1. Leaf is a lateral, generally flattened structure borne on the stem.
  2. It develops at the node and bears a bud in its axil.
  3. Leaves originate from root apical meristems and arranged in an acropetal order.
  4. They are the most important vegetative organs for reproduction.

A. (i) and (ii)

B. (ii) and (iii)

C. (i), (ii) and (iv)

D. all of these

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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

Which of the following is correct with reference to floral character of family solanaceae?

A. Racemose, zygomorphic, unisexual, floral characters

B. Racemose, zygomorphic, bisexual, polypetalous

C. Axillary, bisexual, actinomorphic, epipetalous

D. Axillary, actinomorphic, bisexual, epipetalous

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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

Identify the inflorescence shown by the given figures A and B. 
q5

A. A-Cymose, B-Racemose

B. A-Racemose, B-Cymose

C. A-Racemose, B-Racemose

D. A-Cymose, B-Cymose

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4

Consider the following statements regarding the root system of angiosperms and choose the correct option given below.
  1. In monocots, the fibrous root system arises from the base of the stem.
  2. The region of elongation is called the root hair region.
  3. In sweet potato, the adventitious roots get swollen and store food.
  4. The stems of maize and sugarcane have supporting roots called prop roots.

A. (i) and (ii) are correct but (iii) and (iv) are wrong.

B. (ii) and (iii) are correct but (i) and (iv) are wrong.

C. (ii) and (iv) are correct but (i) and (iii) are wrong.

D. (i) and (iii) are correct but (ii) and (iv) are wrong.

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4

The region of the stem where leaves are born are called ____________ while ____________ are the portions between two ____________.

A. nodes, nodes and internodes

B. nodes, internodes and nodes

C. internodes, nodes and nodes

D. internodes, internodes and nodes

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4

Roots develop from parts of the plant other than radicle are called

A. tap roots

B. fibrous roots

C. adventitious roots

D. nodular roots

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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

Stem tendrils are found in

A. cucumber

B. pumpkins

C. grapevines

D. all of these

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4

Identify the correct families of the given plant species (A, B and C) 
q14

A. A - Liliaceae, B - Compositae, C - Malvaceae

B. A - Fabaceae, B - Solanaceae, C - Liliaceae

C. A - Compositae, B - Malvaceae, C - Liliaceae

D. A - Solanaceae, B - Fabaceae, C - Liliaceae

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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

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

Match column I with column II and choose the correct combination from the options given below.
(Position of floral parts on thalamus)(Represented in)
A. HypogynousI. Ray florets of sunflower
B. PerigynousII. Brinjal
C EpigynousIII Peach

A. A II, B I, C III

B. A I, B II, C III

C. A III, B II, C I

D. A II, B III, C I

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4

During the post-fertilization period, the ovules develops into ___A____ and the ovary matures into a ___B ____.

A. A - seeds; B - fruit

B. A - fruit; B - seeds

C. A - flower; B - seed

D. A - seeds; B - flower

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4

When a flower has both androecium and gynoecium, it is known as__________.

A. asexual

B. bisexual

C. unisexual

D. multisexual

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4

Which one of the following structure is not associated with gynoecium?

A. Ovary

B. Style

C. Stigma

D. Filament

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4

Which of the following is a modified stem for the protection of plants from browsing animals?

A. Tendrils

B. Thorns

C. Rhizome

D. Tuber

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4

The main function(s) of root system is/are

A. absorption of water and minerals from the soil

B. storing reserve food material

C. synthesis of plant growth regulators

D. All of the above

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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

The main purpose of phyllotaxy for the leaves is to provide sufficient_______.

A. soil

B. air

C. water

D. light

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4

Which of the following statement (s) is/are not correct?
  1. Calyx and corolla are reproductive organs of a flower.
  2. Zygomorphic flower can be divided into two equal radial halves in any radial plane.
  3. Flowers without bracts are termed as bracteate.
  4. Parthenocarpic fruit is formed after fertilization of the ovary.
  5. In legumes, seed is non-endospermic.
  6. Radical buds develop on roots.

A. (i) , (ii), (iii) and (iv)

B. (i), (ii) and (v)

C. (iii), (iv) and (vi)

D. (iv), (v) and (i)

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4

In flower (X), the gynoecium occupies the highest position while the other parts are situated below it. The ovary in such flowers is said to be Y. Identify X and Y and select the correct option.

A. X - Epigynous, Y - Inferior

B. X - Perigynous, Y - Superior

C. X - Hypogynous, Y - Superior

D. X - Perigynous, Y - Half-inferior