Morphology of Flowering Plants Chapter-Wise Test 15

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which term describes the mode of arrangement of sepals or petals in a floral bud?

Placentation
Aestivation
Phyllotaxy
Venation
2

Aestivation refers to the arrangement of sepals or petals in a floral bud before blooming.

Which of the following statements about seeds is correct?

The radicle develops into the root
The plumule gives rise to the root
The cotyledons store food in monocots
Monocot seeds have two cotyledons
1

The radicle develops into the root, while the plumule forms the shoot.

Which of the following is a characteristic feature of dicot seeds?

Single cotyledon
Two cotyledons
Endosperm is always present
Scutellum absorbs nutrients
2

Dicot seeds, such as pea and gram, have two cotyledons that store food for the developing embryo.

Which part of a flower matures into the fruit after fertilization?

Ovary
Ovule
Style
Stigma
1

The ovary matures into a fruit, while the ovules develop into seeds after fertilization.

Which of the following is NOT a function of the stem?

Conducting water
Performing photosynthesis
Providing anchorage
Storing food
3

Anchorage is a function of the root system, not the stem.

Which of the following is an example of a pinnately compound leaf?

Neem
Silk cotton
Lotus
Mango
1

Neem has a pinnately compound leaf, where multiple leaflets arise on a common rachis.

Which of the following modifications is NOT found in the stem?

Tendrils
Thorns
Tuberous root
Rhizome
3

Tuberous roots are a modification of roots, not stems. Examples include sweet potato.

Which type of root modification is found in mangrove plants for respiration?

Prop roots
Pneumatophores
Stilt roots
Tuberous roots
2

Pneumatophores are specialized aerial roots found in mangrove plants that help in gaseous exchange in waterlogged soils.

What is the main advantage of compound leaves over simple leaves?

They have a larger surface area for photosynthesis
They are less prone to damage from strong winds
They have stronger vascular bundles
They allow more efficient transpiration
2

Compound leaves, such as those in neem, are less likely to be damaged by strong winds because the leaflets move independently.

Which of the following statements about flower symmetry is correct?

Actinomorphic flowers have radial symmetry
Zygomorphic flowers can be divided into multiple symmetrical halves
Sunflower flowers exhibit zygomorphic symmetry
Pea flowers exhibit actinomorphic symmetry
1

Actinomorphic flowers, such as mustard, can be divided into equal halves in multiple planes.

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