### Description of Red Blood Cell Shape

Red blood cells (RBCs), or erythrocytes, have a distinct shape that is crucial for their function in the body. They are characterized as:

1. **Biconcave Disc**: This is the correct shape of a red blood cell. The biconcave shape means that the cell has a concave surface on both sides, creating a disc-like appearance with a thinner center and thicker edges. This design increases the surface area to volume ratio, allowing for more efficient gas exchange (oxygen and carbon dioxide) as they circulate through the bloodstream.

Other options provided in the question include:
2. **Squamous**: This refers to flat cells, which do not describe red blood cells.
3. **Columnar**: This refers to tall, column-like cells, which is also not representative of red blood cells.
4. **Cuboidal**: These cells are cube-shaped and do not apply to red blood cells.
5. **Spherical**: While red blood cells can exhibit some spherical characteristics under certain conditions, they are predominantly biconcave in their normal state.

### Final Answer
The correct choice is **biconcave disc**.

Question

### Description of Red Blood Cell Shape

Red blood cells (RBCs), or erythrocytes, have a distinct shape that is crucial for their function in the body. They are characterized as:

1. **Biconcave Disc**: This is the correct shape of a red blood cell. The biconcave shape means that the cell has a concave surface on both sides, creating a disc-like appearance with a thinner center and thicker edges. This design increases the surface area to volume ratio, allowing for more efficient gas exchange (oxygen and carbon dioxide) as they circulate through the bloodstream.

Other options provided in the question include:
2. **Squamous**: This refers to flat cells, which do not describe red blood cells.
3. **Columnar**: This refers to tall, column-like cells, which is also not representative of red blood cells.
4. **Cuboidal**: These cells are cube-shaped and do not apply to red blood cells.
5. **Spherical**: While red blood cells can exhibit some spherical characteristics under certain conditions, they are predominantly biconcave in their normal state.

### Final Answer
The correct choice is **biconcave disc**.

Knowee AI · Accepted Answer

### Description of Red Blood Cell Shape

Red blood cells (RBCs), or erythrocytes, have a distinct shape that is crucial for their function in the body. They are characterized as:

1. **Biconcave Disc**: This is the correct shape of a red blood cell. The biconcave shape means that the cell has a concave surface on both sides, creating a disc-like appearance with a thinner center and thicker edges. This design increases the surface area to volume ratio, allowing for more efficient gas exchange (oxygen and carbon dioxide) as they circulate through the bloodstream.

Other options provided in the question include:
2. **Squamous**: This refers to flat cells, which do not describe red blood cells.
3. **Columnar**: This refers to tall, column-like cells, which is also not representative of red blood cells.
4. **Cuboidal**: These cells are cube-shaped and do not apply to red blood cells.
5. **Spherical**: While red blood cells can exhibit some spherical characteristics under certain conditions, they are predominantly biconcave in their normal state.

### Final Answer
The correct choice is **biconcave disc**.

Describe the shape of a red blood cell.Multiple choice question.biconcave discsquamousalcolumnarcuboidalspherical

Question

Describe the shape of a red blood cell.

Solution

Description of Red Blood Cell Shape

Final Answer

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