Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
The aleurone layer in a monocot seed plays a crucial role in:
Protecting the embryo from mechanical damage
Storing starch and other reserve materials
Synthesizing and secreting hydrolytic enzymes for endosperm breakdown
Absorbing water and initiating germination
Which of these combinations correctly matches the seed type with its corresponding post-fertilization structure?
Monocot seed - Fruit with one cotyledon and endosperm; Dicot seed - Fruit with two cotyledons and reduced/no endosperm
Monocot seed - Fruit with two cotyledons and no endosperm; Dicot seed - Fruit with one cotyledon and endosperm
Monocot seed - Fruit with one cotyledon and no endosperm; Dicot seed - Fruit with two cotyledons and endosperm
Monocot seed - Fruit with two cotyledons and endosperm; Dicot seed - Fruit with one cotyledon and no endosperm
The suspensor in a developing dicot embryo plays a critical role in:
Protecting the embryo from pathogens and environmental stress
Synthesizing growth hormones and regulating embryo development
Forming the root apical meristem and initiating root development
Pushing the embryo into the endosperm and facilitating nutrient absorption
In albuminous seeds, the food reserve is stored in the:
Cotyledons
Embryo
Seed coat
Endosperm
What is the function of the endosperm in angiosperms?
Photosynthesis
Water absorption
Nourishes the developing embryo
Supports the plant
In the angiosperm life cycle, the endosperm is formed by:
Fusion of a sperm with the egg
Fusion of a sperm with polar nuclei
Meiosis in the ovule
Mitosis in the embryo
In angiosperms, double fertilization results in the formation of:
Zygote and endosperm
Two zygotes
Endosperm and embryo sac
Two endosperm nuclei
A researcher observes a plant species where the generative cell undergoes mitosis before pollination, resulting in two sperm cells within the pollen grain. How might this unusual characteristic affect double fertilization?
Prevent double fertilization from occurring.
Enhance the efficiency of double fertilization.
Potentially lead to the fertilization of both the egg cell and a synergid, disrupting endosperm development.
Have no significant impact on the process of double fertilization.
A unique feature of angiosperm embryogenesis is the formation of a suspensor. Which statement regarding the suspensor is INCORRECT?
It connects the developing embryo to the maternal tissues.
It provides a conduit for nutrients and growth regulators.
It pushes the embryo into the endosperm.
It undergoes extensive cell divisions to form the embryo proper.
