Morphology of Flowering Plants
Test 5

Correct answer Carries: 4.

Wrong Answer Carries: -1.

What is the term for the arrangement of leaves on a stem or branch?

Venation
Placentation
Phyllotaxy
Aestivation
3

Phyllotaxy refers to the pattern of leaf arrangement on a stem or branch.

Which type of flower has only one type of reproductive organ?

Unisexual
Bisexual
Zygomorphic
Incomplete
1

Unisexual flowers contain only stamens or only carpels, making them male or female flowers.

Which of the following is an example of an epigynous flower?

Mustard
Plum
Sunflower
Rose
3

In epigynous flowers, such as sunflower, the ovary is completely enclosed by the thalamus.

Which type of seed has both cotyledons and stores food in endosperm?

Non-endospermic monocot seed
Endospermic dicot seed
Non-endospermic dicot seed
Non-endospermic seed
2

In endospermic dicot seeds like castor, food is stored in the endosperm.

Which of the following statements about leaves is correct?

Simple leaves have multiple leaflets
In compound leaves, the leaf blade is undivided
The petiole helps attach the leaf to the stem
Leaves do not have vascular tissues
3

The petiole connects the leaf blade (lamina) to the stem and supports it.

Which of the following statements about venation is incorrect?

Reticulate venation is seen in monocots
Parallel venation is seen in grasses
Dicots typically have reticulate venation
Monocots usually exhibit parallel venation
1

Reticulate venation is found in dicots, not monocots. Monocots exhibit parallel venation.

Which of the following statements about phyllotaxy is correct?

Alternate phyllotaxy is found in mustard
Whorled phyllotaxy is found in sunflower
Opposite phyllotaxy is observed in guava
both option (1) and option (3)
4

both option (1) and option (3)

Which of the following statements about placentation is incorrect?

Axile placentation is seen in china rose
Marginal placentation is found in pea
Parietal placentation is observed in mustard
Free central placentation is seen in sunflower
4

Sunflower exhibits basal placentation, not free central placentation.

Which of the following stem modifications stores food and appears flattened?

Tuber
Bulb
Corm
Phylloclade
4

Phylloclades, as seen in Opuntia, are flattened stem modifications that store food and perform photosynthesis.

Which floral organ is modified into pappus in the family Asteraceae?

Stamens
Calyx
Petals
Ovary
2

In Asteraceae, the calyx is modified into a pappus, which aids in seed dispersal.

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