NEET 2023
- Exam
- NEET
- Year
- 2023
- Subject
- Botany
- Chapter
- Anatomy of Flowering Plants
NEET 2023 · Botany · Anatomy of Flowering Plants
Identify the correct statements: A. Lenticels are the lens-shaped...
Identify the correct statements:
A. Lenticels are the lens-shaped openings permitting the exchange of gases.
B. Bark formed early in the season is called hard bark.
C. Bark is a technical term that refers to all tissues exterior to vascular cambium.
D. Bark refers to periderm and secondary phloem.
E. Phellogen is single-layered in thickness.
Choose the correct answer from the options given below:
Options
- AB and C only
- BB, C and E only
- CA and D only
- DA, B and D only
Correct answer
C. A and D only
Step-by-step solution
- During secondary growth in stem, meristematic tissue called cork cambium develops, usually in the cortex region. Phellogen is a couple of layers thick.
- Bark is a non-technical term that refers to all tissues exterior to the vascular cambium, therefore including secondary phloem.
- Bark refers to a number of tissue types, namely periderm and secondary phloem.
- Bark that is formed early in the season is called early or soft bark. Towards the end of the season, late or hard bark is formed.
- Lenticels are lens-shaped opening in the phellogen forming a parenchymatous cavity for gaseous exchange.