A ground substance secreted by connective tissue accumulated between cells and fibres is

Options

A. polysaccharide
B. lipid
C. protein
D. steroid

Answer

To solve the question, we need to identify the ground substance secreted by connective tissue that accumulates between cells and fibers. Let's break down the options provided:

1. **Polysaccharide**
- Ground substances in connective tissues often include polysaccharides, particularly glycosaminoglycans (GAGs), which are also known as mucopolysaccharides. These substances are negatively charged and play a crucial role in providing support and hydration to the tissue.

2. **Lipids**
- Lipids are primarily composed of hydrocarbons and do not serve as the ground substance in connective tissues. They are more associated with energy storage and cellular membranes.

3. **Proteins**
- Proteins are macromolecules made of amino acids. While they are important in connective tissues (like collagen), they do not constitute the ground substance itself.

4. **Steroid**
- Steroids are a type of lipid and are not involved in forming the ground substance of connective tissues.

Given the analysis of the options, we can conclude that the correct answer is:

**Answer: Polysaccharide**

### Step-by-Step Solution:
1. **Identify the type of substance**: The question asks for a ground substance in connective tissue.
2. **Analyze the options**: Review each option to determine if it fits the description of a ground substance.
3. **Evaluate Polysaccharides**: Recognize that polysaccharides, specifically glycosaminoglycans, are key components of the ground substance in connective tissue.
4. **Eliminate other options**: Confirm that lipids, proteins, and steroids do not fit the definition of the ground substance in connective tissue.
5. **Select the correct answer**: Conclude that the correct answer is polysaccharide.