Parenchyma is usually present in,
i) Cortex
ii) Phloem fibre
iii) Pericycle
iv) Pith
v) Hypodermis
vi) Medullary rays
vii) Xylem fibres
viii) Mesophyll tissue

Options

A. i, iii, iv, vi, viii
B. i, ii, iii, iv, vi
C. i, v, vi, vii
D. i, ii, iv,vi

Answer

To determine where parenchyma is usually present, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Understanding Parenchyma**:
- Parenchyma is a type of simple permanent tissue in plants.
- It is characterized by living cells and has several functions including storage, transport, and photosynthesis.

2. **Analyzing Each Option**:
- **i) Cortex**:
- The cortex is a part of the plant that is made up of living cells, including parenchyma.
- **Conclusion**: Yes, parenchyma is present in the cortex.

- **ii) Phloem Fibre**:
- Phloem fibers are a type of dead tissue and do not contain living parenchyma cells.
- **Conclusion**: No, parenchyma is not present in phloem fibers.

- **iii) Pericycle**:
- The pericycle is a layer of living tissue located between the xylem and phloem, and it can contain parenchyma cells.
- **Conclusion**: Yes, parenchyma is present in the pericycle.

- **iv) Pith**:
- The pith is the central part of the stem and is primarily composed of parenchyma cells.
- **Conclusion**: Yes, parenchyma is present in the pith.

- **v) Hypodermis**:
- The hypodermis is the outer layer of the plant stem and can contain parenchyma cells.
- **Conclusion**: Yes, parenchyma is present in the hypodermis.

- **vi) Medullary Rays**:
- Medullary rays are made up of parenchyma cells and are living tissues.
- **Conclusion**: Yes, parenchyma is present in medullary rays.

- **vii) Xylem Fibres**:
- Xylem fibers are also a type of dead tissue and do not contain living parenchyma cells.
- **Conclusion**: No, parenchyma is not present in xylem fibers.

- **viii) Mesophyll Tissue**:
- Mesophyll tissue is found in leaves and consists of parenchyma cells that contain chlorophyll for photosynthesis.
- **Conclusion**: Yes, parenchyma is present in mesophyll tissue.

3. **Final Conclusion**:
- The options where parenchyma is usually present are:
- Cortex (i)
- Pericycle (iii)
- Pith (iv)
- Hypodermis (v)
- Medullary rays (vi)
- Mesophyll tissue (viii)

Thus, the correct options are **i, iii, iv, v, vi, and viii**.