Cells cut off by the phellogen on the outer side is called

Options

A. phelloderm
B. Phellogen, phellem and phelloderm
C. phellem
D. periderm

Answer

To answer the question "Cells cut off by the phellogen on the outer side is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Phellogen**:
- Phellogen, also known as cork cambium, is a type of lateral meristem in plants. It is responsible for producing cork cells (phellem) on the outer side and secondary cortex (phelloderm) on the inner side.

2. **Identifying the Cells Cut Off**:
- The question specifically asks for the cells cut off by the phellogen on the outer side.

3. **Naming the Cells**:
- The cells that are produced on the outer side of the phellogen are called phellem or cork.

4. **Reviewing the Options**:
- Given the options:
1. Phyloderm
2. Phylogen, Phylum, and Phyloderm
3. Phylum
4. Pheriderm
- The correct term for the cells cut off by the phellogen on the outer side is "phellem" (often referred to as cork).

5. **Conclusion**:
- Therefore, the answer to the question is that the cells cut off by the phellogen on the outer side are called **phellem** or **cork**.

### Final Answer:
- The cells cut off by the phellogen on the outer side are called **phellem**.