To answer the question "In which one of the following groups, all the three are examples of polysaccharides?", we need to analyze the options provided and identify which group contains only polysaccharides.
### Step-by-Step Solution:
1. **Understand Polysaccharides**: Polysaccharides are large molecules made up of many monosaccharide units. Common examples include starch, glycogen, and cellulose.
2. **Evaluate Option 1**: The first option lists starch, glycogen, and cellulose.
- **Starch**: A storage polysaccharide in plants, composed of amylose and amylopectin, made from glucose units.
- **Glycogen**: A storage polysaccharide in animals, primarily found in liver and muscle cells, also made from glucose units.
- **Cellulose**: A structural polysaccharide found in plant cell walls, made from glucose units.
All three are polysaccharides.
3. **Evaluate Option 2**: The second option lists sucrose, maltose, and glucose.
- **Sucrose**: A disaccharide made of glucose and fructose.
- **Maltose**: A disaccharide made of two glucose units.
- **Glucose**: A monosaccharide.
This group contains disaccharides and a monosaccharide, not polysaccharides.
4. **Evaluate Option 3**: The third option lists glucose, fructose, and lactose.
- **Glucose**: A monosaccharide.
- **Fructose**: A monosaccharide.
- **Lactose**: A disaccharide made of glucose and galactose.
This group also contains monosaccharides and a disaccharide, not polysaccharides.
5. **Evaluate Option 4**: The fourth option lists galactose, starch, and sucrose.
- **Galactose**: A monosaccharide.
- **Starch**: A polysaccharide.
- **Sucrose**: A disaccharide.
This group contains a monosaccharide and a disaccharide, not all polysaccharides.
6. **Conclusion**: The only option that contains all polysaccharides is **Option 1: Starch, Glycogen, and Cellulose**.
### Final Answer:
**Option 1: Starch, Glycogen, and Cellulose** are all examples of polysaccharides.
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