Morphology of Flowering Plants Chapter-Wise Test 6

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which term is used for the leaf arrangement in Alstonia?

Alternate
Opposite
Whorled
None of the above
3

Alstonia exhibits whorled phyllotaxy, where more than two leaves arise at a node.

Which of the following statements about inflorescence is incorrect?

Cymose inflorescence has an acropetal flower arrangement
Umbel is a type of racemose inflorescence
Spadix is found in banana and maize
Capitulum is a type of racemose inflorescence
1

Cymose inflorescence has a basipetal arrangement, meaning older flowers are at the top and younger ones at the base.

Which of the following fruit types is classified as a dry fruit?

Mango
Coconut
Capsule
Berry
3

A capsule is a type of dry fruit that splits open to release seeds.

What is the primary function of the pericarp in fruit development?

Protection of seeds
Facilitating pollination
Aiding in photosynthesis
Water absorption
1

The pericarp is the wall of the fruit, which develops from the ovary and protects the seeds.

Which of the following statements about leaf modifications is incorrect?

Tendrils in pea are modified leaves
Spines in cactus reduce water loss
Storage leaves are found in onion
Leaflets in neem are modified for climbing
4

Neem leaflets are not modified for climbing. Climbing structures like tendrils are found in pea plants.

How does the modification of the leaf into a tendril benefit climbing plants?

It helps in support and attachment
It increases the surface area for photosynthesis
It reduces transpiration
It enhances seed dispersal
1

Leaf tendrils help climbing plants by coiling around supports, allowing them to grow vertically and access sunlight.

Which of the following statements about placentation is incorrect?

Marginal placentation is found in pea
Axile placentation is seen in tomato
Parietal placentation is observed in mustard
Basal placentation is found in hibiscus
4

Basal placentation is found in sunflower, not in hibiscus. Hibiscus has axile placentation.

Which of the following statements about inflorescence is incorrect?

Cymose inflorescence has an acropetal flower arrangement
Umbel is a type of racemose inflorescence
Spadix is found in banana and maize
Capitulum is a type of racemose inflorescence
1

Cymose inflorescence has a basipetal arrangement, where older flowers are at the top and younger ones at the base.

Which feature differentiates a hypogynous flower from an epigynous flower?

The position of the ovary in relation to other floral parts
The number of floral whorls
The number of stamens present
The symmetry of the flower
1

In hypogynous flowers, the ovary is superior, while in epigynous flowers, the ovary is inferior and embedded in the thalamus.

Which of the following represents a whorled phyllotaxy?

China rose
Guava
Alstonia
Mustard
3

In Alstonia, more than two leaves are arranged in a whorl at each node, exhibiting whorled phyllotaxy.

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