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:

Question

Match List - I with List - II.

Choose the correct answer from the options given below.

Answer 1

Let’s evaluate each statement to determine which are correct:

Statement A: Lenticels are the lens-shaped openings permitting the exchange of gases.
This statement is correct. Lenticels are indeed lens-shaped structures that appear on the surface of stems and allow for gas exchange between the internal tissues and the atmosphere.
Statement B: Bark formed early in the season is called hard bark.
This statement is incorrect. The bark formed early in the season is often referred to as "young bark" or "soft bark." The terms "hard bark" or "mature bark" refer to older, more developed bark that typically forms later.
Statement C: Bark is a technical term that refers to all tissues exterior to vascular cambium.
This statement is correct. However, the term "bark" includes both the outer and inner layers, including the periderm, secondary phloem, and any other layers external to the vascular cambium.
Statement D: Bark refers to periderm and secondary phloem.
This statement is correct. Bark generally comprises the periderm (including cork cambium and cork) and secondary phloem, which are found outside the vascular cambium.
Statement E: Phellogen is single-layered in thickness.
This statement is correct. Phellogen, also known as cork cambium, is typically a single layer of meristematic cells that gives rise to the periderm.

After evaluating all statements, we conclude that statements A and D are correct. Thus, the correct option is A and D only.

Answer 2

Let’s evaluate each statement to determine which are correct:

Statement A: Lenticels are the lens-shaped openings permitting the exchange of gases.
This statement is correct. Lenticels are indeed lens-shaped structures that appear on the surface of stems and allow for gas exchange between the internal tissues and the atmosphere.
Statement B: Bark formed early in the season is called hard bark.
This statement is incorrect. The bark formed early in the season is often referred to as "young bark" or "soft bark." The terms "hard bark" or "mature bark" refer to older, more developed bark that typically forms later.
Statement C: Bark is a technical term that refers to all tissues exterior to vascular cambium.
This statement is correct. However, the term "bark" includes both the outer and inner layers, including the periderm, secondary phloem, and any other layers external to the vascular cambium.
Statement D: Bark refers to periderm and secondary phloem.
This statement is correct. Bark generally comprises the periderm (including cork cambium and cork) and secondary phloem, which are found outside the vascular cambium.
Statement E: Phellogen is single-layered in thickness.
This statement is correct. Phellogen, also known as cork cambium, is typically a single layer of meristematic cells that gives rise to the periderm.

After evaluating all statements, we conclude that statements A and D are correct. Thus, the correct option is A and D only.

The Correct Option is A