[TOP] Flower Of Plants MCQs And Answers (Multiple Choice Questions)

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Flower of Plants MCQs and Answers

1. Which among the following plays a vital role in pollination of pollen grains?

Petals

Sepals

Pedicel

Carpel

2. Which among the following is not correct about flowers?

A flower has 4 whorls arranged successively i.e. calyx, corolla, androecium and gynoecium

Members of calyx and corolla are called as sepals and petals respectively

In polysepalous, the sepals are arranged in a free manner whereas in gamosepalous, the sepals are united

Tulip is an example of polypetalous

3. Which among the following is incorrect about stamens?

A stamen mainly contains of anther, filament and connective tissue

An anther is a bilobed structure present at the tip of filament with each lobe bearing 2 pollen sacs

Epipetalous flowers are those flowers in which stamens are attached to petals

Sunflower is an example of epiphyllous

4. Which among the following statements is incorrect about stamens?

In epiphyllous flowers, stamens are attached to the perianth

Stamens attached to carpels are gynandrous

In monadelphous, all filaments of stamens are bunched and all the stamens are united

In polysemous, stamens are free i.e. they are neither attached to any part of the flower nor to each other

5. Which among the following is incorrect about Carpel?

Basal enclosed part of carpel is called ovary

Ovules are attached to cushion like structure called Placenta

Stigma is the part of the carpel that receives pollen grain

Arrangement of ovules within the ovary is called Aestivation

6. Which among the following is incorrect about different types of Placentation?

In marginal placentation, placenta develops on the ventral side of an ovary

Unlike marginal placentation where ovary is single chambered, in axile placentation ovary is multi-chambered

Okra is an example of axial placentation i.e. ovary is multi-chambered and ovules are attached to the central axis

Papaya is an example of basal placentation

7. Which among the following is not correct about free-central placentation?

In basal placentation, ovule is present at base of the ovary

In parietal placentation, placenta is swollen at centre and ovules get arranged around it

In apical placentation, ovule is present at apex of the ovary

Lemon is an example of axial placentation

8. Which among the following is incorrect about racemose and cymose?

In racemose inflorescence, the youngest flower remains at the top of floral axis

In cymose inflorescence, the floral main axis continues to grow throughout the life

In racemose inflorescence, indefinite number of flowers are formed

In cymose inflorescence, the axilary branches continue to grow throughout the life

9. Which among the following is incorrect about aestivation?

Arrangement of sepals or petals in a floral bud with respect to the other members of the same whorl is called aestivation

In valvate aestivation, sepals or petals in a whorl just touch each other at the margin, without overlapping

In twisted aestivation, margin of a sepal overlaps with that of the next one and so on in either clock-wise or counter clock-wise direction

Gulmohar flower is an example of twisted aestivation

10. Vexilary aestivation is usually seen in ________

Dimerous flowers

Pentamerous flowers

Tetramerous flowers

Trimerous flowers

11. Which among the following is not correct about the classification of flowers?

A flower containing only stamen is called staminate

Based on symmetry, flowers are classified into actinomorphic, zygomorphic and asymmetric flowers

Flowers that possess radial symmetry is said to be a zygomorphic flower

Canna is an asymmetric flower

12. Which among the following is incorrect about the classification of flowers?

Pea possesses bilateral symmetry

Jasmine is an example of a trimerous flower

Papaya is an example of a unisexual flower

Hibiscus is an example of a pentamerous flower

13. Which among the following statements is incorrect about the classification of flowers based on the position of whorls?

In hypogynous flowers, gynoecium occupies the highest position

The superior ovary is present in the hypogynous flower

In epigynous flower, gynoecium and other whorls of the flower remain on the same level

China rose is an example of a hypogynous flower

14. Which among the following is incorrect about classification of flowers based on the arrangement of whorls in a flower?

In hypogynous flowers, the ovary is present at the lowermost level when compared to sepals, petals and stamens

In perigynous flower, the ovary is neither the bottom-most whorl nor the topmost whorl

Ovary in perigynous flower is called half superior ovary

Ovary in epigynous flower is called inferior ovary

15. A mustard flower is an example of ___________

Actinomorphic flower

Zygomorphic flower

Asymmetric flower

Epigynous flower

16. Periwinkle is an example of ______

Dimerous

Trimerous

Tetramerous

Pentamerous

[TOP] Flower of Plants MCQs and Answers (Multiple Choice Questions)

Flower of Plants MCQs and Answers

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Flower of Plants MCQs and Answers

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