Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
Which statement BEST describes the relationship between the nuclear envelope and the endoplasmic reticulum?
The nuclear envelope is entirely separate from the endoplasmic reticulum.
The inner membrane of the nuclear envelope is continuous with the smooth ER membrane.
The outer membrane of the nuclear envelope is continuous with the rough ER membrane.
The nuclear envelope is formed by invaginations of the Golgi apparatus.
Histone H1 plays a crucial role in the structure of chromatin. Which of the following statements regarding its interaction and function is INCORRECT?
H1 binds to the linker DNA between nucleosomes.
H1 helps to compact chromatin structure.
H1 interacts with the core histones within the nucleosome octamer.
H1 stabilizes the interaction of DNA with the nucleosome.
Certain seeds require a period of cold exposure before germination, a process known as stratification. This requirement primarily ensures:
Increased seed coat permeability to oxygen solely
Activation of enzymes responsible for nutrient mobilization only
Leaching of germination inhibitors and promotion of gibberellin biosynthesis
Vernalization of the embryo and subsequent flowering
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
Which of the following is NOT a function of the stem in plants?
Support for leaves, flowers, and fruits
Transport of water and nutrients
Storage of food reserves
Absorption of water and minerals from the soil
Which of the following is NOT a function of lenticels in woody stems?
Gaseous exchange
Transport of water and minerals
Transpiration
Providing a pathway for pathogens
Which tissue in the stem provides mechanical support and flexibility?
Parenchyma
Sclerenchyma
Collenchyma
Xylem
In a dicot stem, the pith is located:
Outside the vascular bundles
Between the xylem and phloem
In the center, surrounded by the vascular bundles
Within the vascular bundles
What is the primary function of lenticels in the stem?
Gaseous exchange
Water transport
Food storage
Support
Which of the following is NOT a function of the stem?
Absorption of water and minerals
Support for leaves and flowers
Transport of water and nutrients
Storage of food
