Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
In a hypothetical plant species, the inflorescence exhibits a unique combination of features: a condensed cymose head surrounded by an involucre of brightly colored bracts that mimic petals. The individual flowers within the head are inconspicuous. Which existing inflorescence type does this MOST closely resemble, and what evolutionary advantage might this unique structure offer?
Cyathium; protection from herbivores
Hypanthodium; trap for pollinators
Capitulum; enhanced pollinator attraction
Verticillaster; increased seed dispersal
Consider a plant with a compound umbel inflorescence. If each ray of the main umbel bears a small, condensed cyme instead of a single flower, how would this modified inflorescence be BEST classified, and what advantage might this structure confer?
Cyme of umbels; enhanced seed dispersal
Compound raceme of umbels; protection from herbivores
Compound umbel of cymes; increased flower number and display area
Hypanthodium; trap for pollinators
A rare orchid species exhibits a highly specialized pollination mechanism. Its labellum mimics the pheromones and appearance of a specific female wasp species, attracting the males for pseudocopulation. Which of the following floral adaptations is LEAST likely to be observed in this orchid?
Abundant nectar production within the spur
Precise positioning of pollen packets (pollinia) for attachment to the male wasp
Flower color and shape closely resembling the female wasp
Flowering period synchronized with the mating season of the wasp
A plant species exhibits cleistogamous flowers alongside chasmogamous flowers. What is the PRIMARY advantage conferred by the cleistogamous flowers?
Increased genetic diversity through cross-pollination
Assured seed set even in the absence of pollinators
Attraction of a wider range of pollinators
Production of larger and more nutritious seeds
The colorful part of a flower that attracts pollinators is called the:
Petal
Sepal
Stamen
Pistil
The sticky top part of the pistil that receives pollen is the:
Stigma
Style
Ovary
Filament
What is the primary function of the petals of a flower?
Protect the developing bud
Produce pollen
Attract pollinators
Develop into fruit
The process of seed formation is initiated after:
Pollination
Seed dispersal
Germination
Fertilization
Which of the following combinations of floral characteristics is MOST likely to be associated with wind pollination?
Large, showy flowers; abundant nectar; small amounts of pollen; sticky stigma
Small, inconspicuous flowers; no nectar; large amounts of pollen; feathery stigma
Brightly colored flowers; strong fragrance; moderate amounts of pollen; tubular stigma
Large, bell-shaped flowers; copious nectar; few pollen grains; exposed stigma
