1 Answers
Option 1 : Cellulose
The correct answer is Cellulose.
- Cellulose is a fibrous carbohydrate found in all plants.
- It is the structural component of plant cell walls.
- They are both made from the same monomer (+) - glucose and have the same glucose-based repeat units.
- In starch, all the glucose repeat units are oriented in the same direction. But in cellulose, each successive glucose unit is rotated 180 degrees around the axis of the polymer backbone chain, relative to the last repeat unit.
- Starch is practically useless as a material to make things, but cellulose is strong enough to make fibres, and hence rope, clothing and paper products.
- Cellulose doesn't dissolve in water the way starch does and certainly doesn't break down as easily.
- Cellulose is a polysaccharide (made up from sugar units) polymer.
- The monosaccharide unit of the cellulose is Glucose.
- The cell wall in the plant cells is made up of cellulose.
- Xylem:
- It is one of the important tissues of the vascular system of plants. The main activity of this tissue is to transport minerals and water from roots and carry them to other parts of the plants. It has two separate chambers tracheids and vessels for transporting minerals and water.
- Phloem:
- It is as important as the xylem tissues for the vascular system of plants. The main activity of this tissue is to transport nutrients and food from leaves to other growing parts of plants.
- Cytoplasm:
- Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane.
- It is mainly composed of water, salts, and proteins. In eukaryotic cells, the cytoplasm includes all of the material inside the cell and outside of the nucleus.
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