Morphology of Flowering Plants Chapter-Wise Test 13

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following statements about flower symmetry is correct?

Zygomorphic flowers can be divided into two equal halves in multiple planes
Actinomorphic flowers have bilateral symmetry
Pea flowers exhibit zygomorphic symmetry
Sunflower flowers are zygomorphic
3

Pea flowers are zygomorphic, meaning they can be divided into two equal halves in only one plane.

Which feature differentiates a pinnately compound leaf from a palmately compound leaf?

Pinnately compound leaves have leaflets arranged along a central rachis
Palmately compound leaves have a single undivided lamina
Pinnately compound leaves have leaflets attached at a common point
Palmately compound leaves have multiple veins running parallel
1

In pinnately compound leaves (e.g., neem), the leaflets are arranged along a central rachis, unlike palmately compound leaves where they arise from a common point.

Which type of stem modification is found in underground structures like ginger?

Bulb
Tuber
Rhizome
Runner
3

Ginger has an underground modified stem called a rhizome, which stores food and helps in vegetative propagation.

Which of the following statements about venation is correct?

Mango has parallel venation
Grass exhibits reticulate venation
Monocots typically have parallel venation
Dicots have parallel venation
3

Monocots, such as grasses, exhibit parallel venation, where veins run parallel to each other.

Which of the following statements about gynoecium is correct?

It is the male reproductive organ
It consists of stamens
It consists of carpels
It produces pollen grains
3

The gynoecium is the female reproductive organ of the flower and consists of carpels.

Which of the following statements about phyllotaxy is incorrect?

Sunflower exhibits alternate phyllotaxy
Guava has opposite phyllotaxy
Alstonia shows whorled phyllotaxy
All plants have opposite phyllotaxy
4

Not all plants exhibit opposite phyllotaxy; different plants may have alternate, opposite, or whorled arrangements.

What is the function of lenticels in woody stems?

Transport of food
Exchange of gases
Storage of water
Providing mechanical support
2

Lenticels are small openings in the bark of woody stems that facilitate gaseous exchange.

Which type of modification is seen in the roots of banyan trees?

Pneumatophores
Prop roots
Stilt roots
Tuberous roots
2

Prop roots arise from aerial branches in banyan trees and provide additional support.

Which of the following statements about fruit types is incorrect?

A drupe has a hard endocarp
Berry fruits have a fleshy pericarp
Legumes are indehiscent fruits
Aggregate fruits arise from multiple ovaries of a single flower
3

Legumes are dehiscent fruits that split open at maturity to release seeds.

Which part of the leaf helps in gaseous exchange and transpiration?

Epidermis
Cuticle
Stomata
Mesophyll
3

Stomata are small openings on the leaf surface that regulate gaseous exchange and transpiration.

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