Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
Presence of plants arranged into well-defined vertical layers depending on their height can be seen best in:
Temperate Forest
Tropical Savannah
Tropical Rain Forest
Grassland
Specialized epidermal cells surroundings the guard cells are called:
Complementary cells
Subsidiary cells
Bulliform cells
Lenticels
Which of the following is made up of dead cells?
Phloem
Xylem parenchyma
Collenchyma
Phellem
Identify the wrong statements in context of heartwood.
It comprises dead elements with highly lignified walls
Organic compounds are deposited in it
It is highly durable
It conducts water and minerals efficiently
The vascular cambium normally gives rise to
Periderm
Phelloderm
Primary phloem
Secondary xylem
Which one of the following statements is wrong?
A square is a rhombus
A rectangle is a parallelogram
A rhombus is a square
A parallelogram is a trapezium
A typical fat molecules is made up of:
Three glycerol molecules and one fatty acid molecules
One glycerol and three fatty acid molecules
One glycerol and one fatty acid molecule
Three glycerol and three fatty acid molecules
Which one of the following statements is correct, with reference to enzymes?
Holoenzyme = Coenzyme + Cofactor
Apoenzyme = Holoenzyme + Coenzyme
Holoenzyme = Apoenzyme + Coenzyme
Coenzyme = Apoenzyme + Holoenzyme
Which of the following is not a characteristic feature during mitosis in somatic cells?
Spindle fibres
Disappearance of nucleolus
Chromosome movement
Synapsis
A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is containing more number of chromosomes as compared to other dividing cells. This would result in:
Aneuploidy
Polyploidy
Somaclonal variation
Polyteny