Morphology of Flowering Plants Chapter-Wise Test 12

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following stem modifications helps in vegetative propagation?

Tendrils
Thorns
Rhizomes
Stilt roots
3

Rhizomes, like in ginger, are underground stems that help in vegetative propagation.

Which of the following statements about inflorescence is incorrect?

Racemose inflorescence has an acropetal flower arrangement
Cymose inflorescence has a continuously growing main axis
Umbel is a type of racemose inflorescence
Spadix is found in banana and maize
2

In cymose inflorescence, the main axis terminates in a flower and does not grow continuously.

What is the term for stamens attached to the petals?

Polyandrous
Epiphyllous
Epipetalous
Monadelphous
3

When stamens are attached to the petals, they are called epipetalous, as seen in brinjal.

Which of the following statements about flower symmetry is correct?

Zygomorphic flowers have radial symmetry
Actinomorphic flowers have bilateral symmetry
Pea flowers exhibit zygomorphic symmetry
Sunflower flowers exhibit zygomorphic symmetry
3

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

Which of the following is an example of an aggregate fruit?

Tomato
Apple
Strawberry
Mango
3

Strawberry is an aggregate fruit, meaning it develops from multiple ovaries of a single flower.

Which of the following statements about venation is correct?

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

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

Which part of a monocot seed absorbs nutrients from the endosperm?

Coleoptile
Scutellum
Plumule
Radicle
2

The scutellum is a specialized cotyledon in monocots that absorbs nutrients from the endosperm.

Which of the following statements about stem modifications is correct?

Rhizomes are aerial stems
Tendrils in cucurbits are modified stems
Thorns in bougainvillea are modified leaves
Tubers do not store food
2

Tendrils in cucurbits, such as pumpkin, are modified stems that help in climbing.

Which of the following statements about leaves is incorrect?

Simple leaves have a single, undivided lamina
Compound leaves have multiple leaflets
The petiole attaches the leaf to the stem
Leaves do not perform transpiration
4

Leaves play a crucial role in transpiration, which helps in water transport and cooling.

Why do monocot plants typically lack secondary growth?

They do not have a vascular cambium
They lack phloem and xylem
Their roots do not develop
They do not require additional support
1

Monocot plants lack vascular cambium, which is responsible for secondary growth in dicots.

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