Which of the following is absent in the phloem of monocots

Options

A. Sieve elements
B. Phloem fibres
C. Phloem parenchyma
D. Companion cells

Answer

### Step-by-Step Solution:

1. **Understanding Phloem Composition**: Phloem is a type of vascular tissue in plants responsible for the transport of nutrients, particularly sugars produced by photosynthesis. It consists of various components, including sieve elements, companion cells, phloem fibers, and phloem parenchyma.

2. **Identifying Components in Monocots**: In monocots (monocotyledons), the phloem contains sieve elements and companion cells. Sieve elements are responsible for the transport of nutrients, while companion cells assist them by providing necessary proteins and ATP.

3. **Examining Phloem Fibers**: Phloem fibers, also known as bast fibers, are present in the phloem of monocots. These fibers are made of sclerenchyma cells, which provide structural support to the plant.

4. **Analyzing Phloem Parenchyma**: Phloem parenchyma consists of living cells that store food and other substances. However, it is important to note that phloem parenchyma is absent in the phloem of monocots.

5. **Conclusion**: Based on the analysis of the components of phloem in monocots, the component that is absent is the phloem parenchyma.

### Final Answer:
The component that is absent in the phloem of monocots is **phloem parenchyma**.

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