Morphology of flowering plants practice · Mixed difficulty

Option A (Brassica) is correct because Brassica is an angiosperm, which produces fruits, while the others are non-flowering plants.

Option C (A.P. deCandolle) is correct because A.P. deCandolle coined the word taxonomy.

Option C (aggregate fruit) is correct because aggregate fruits develop from polycarpellary apocarpous gynoecium.

Option A (Lateral buds) is correct because flowers and lateral branches arise from lateral buds located in the leaf axils.

Option B (Drupes) is correct because both coconut and mango are classified as drupes.

The correct answer is 32000 because Pisum has diadelphous stamens (9+1), so 10 anthers per flower * 80 pollen grains/anther * 20 flowers = 16000 pollen grains from the single stamen and 14400 from the 9 fused stamens, totaling 32000.

Option A (Seeds) is correct. Seeds can respire anaerobically, especially during germination, when oxygen supply may be limited.

Option C (Flowers on the floral axis) is correct because inflorescence refers to the arrangement of flowers on a main axis or a modified stem.

The correct answer is C (99) because to produce 100 cells from one initial cell requires 99 divisions (100 - 1 = 99).

Option D is correct because prickles are superficial in origin, but their sole role is NOT just protection; they can also aid in climbing. Therefore, the assertion is false, but the reason is true.

The correct answer is A (Pistia) because Pistia exhibits a lateral branch with short internodes, a rosette of leaves, and a tuft of roots.

Option D (Leaf buds-Banana) is correct because Banana propagates through rhizomes or suckers, not leaf buds.

Option C (Flower of tulip is a modified shoot) is correct because a flower is considered a modified shoot.

Option B (Both A and R are true and R is not the correct explanation of A) is correct because Daucus carota (carrot) has decompound leaves, and saprophytic/parasitic nutrition is an advanced feature, but they are unrelated statements.

Option B (Pillar roots – Sugar cane) is the mismatch. Pillar roots are found in Banyan trees, not sugar cane. Sugar cane has stilt roots.

Option D (Allium) is correct because Allium (onion, garlic) has a discoid stem without significant food storage, unlike turmeric, curcuma, and potato which store food in their modified stems.

The correct answer is A (Stamen) because Stamen is the male reproductive part, while Stigma, Style, and Ovary are parts of the female reproductive part (pistil).

Option D (Epiphytic roots) is correct because velamen tissue is a characteristic feature of epiphytic roots, which helps in absorbing moisture from the air.

Option A (Cotyledon) is correct because the scutellum in wheat and maize is the single cotyledon, modified for absorption of nutrients from the endosperm.

Option D (Pomegranate) is correct because the edible part of a pomegranate is the fleshy seed coat (aril). Parthenocarpy would result in seedless fruits, thus eliminating the edible portion.

Option A (Forced zoochory) is correct because sticky fruits or fruits with outgrowths rely on animals for dispersal, where the animal is \"forced\" to carry the seed.

Option C (Monocotyledons) is correct because parallel venation is a characteristic feature of monocot leaves.

The correct answer is D (Both Assertion and Reason are false statements) because in a hypogynous flower, the ovary is superior, and the floral parts arise below the ovary.

Option D (Maize : ${C_4}$ pathway, closed vascular bundles, scutellum) is correct because maize is a C4 plant with closed vascular bundles and a scutellum.

Option C (I and II are false but III is true) is correct because in racemose inflorescence, flowers are borne in acropetal order, epigynous flowers are seen in guava and cucumber, and the ovary in brinjal is superior.

Option A (Dianthus) is correct because Dianthus exhibits free central placentation with a unilocular ovary due to the breakdown of the partition wall.

Option A (Musa) is correct because Musa (banana) exhibits a venation pattern similar to Eryngium, has a berry-like fruit, and a stem that shows signs of perennation (ability to live for several years).

Option D (Angiosperms) is correct because double fertilization is a unique characteristic of angiosperms.

Option D (Node) is correct because leaves originate from the nodes of a plant stem.

Option A (Proteinous layer) is correct because the aleurone layer, a protein-rich layer, forms the outermost covering of the endosperm in monocots.