Identify region of root.
A = Region of maturation, B – Region of elongation, C – Region of meristematic activity, D – Root cap
— Concept: This question tests the understanding of the different regions of a root tip and their respective functions.Concept: This question tests the understanding of the different regions of a root tip and their respective functions.
Why (A) is correct:
- A = Region of maturation: This is the uppermost region where cells differentiate and mature into various tissue types, forming root hairs.
- B = Region of elongation: Located above the meristematic region, cells here rapidly increase in length, pushing the root deeper into the soil.
- C = Region of meristematic activity: This is the tip of the root, containing actively dividing cells (meristematic cells) that are responsible for the growth in length of the root.
- D = Root cap: This is a thimble-like structure covering the root meristem, protecting it from damage as the root pushes through the soil.
Why other options are wrong:
- (B) Incorrectly identifies the regions and their order.
- (C) Incorrectly identifies the regions and their order.
- (D) Uses general terms instead of specific biological names for the regions.
NEET Tip: Remember the order of regions from the tip upwards: Root Cap -> Meristematic -> Elongation -> Maturation. A common mnemonic is My Elephant Makes Roots (Maturation, Elongation, Meristematic, Root cap - in reverse order from top to bottom).
Correct Answer: (A)
A = Region of maturation, B – Region of elongation, C – Region of meristematic activity, D – Root cap