Cytosol Nucleus E Cell membrane Outside of cell 4. Identify the structures labeled A-E in the diagram. Answer 5. Is this diagram illustrating a plant or an animal cell? What is your reasoning? Provide an example of an organ that this cell could have come from and explain your reasoning.
Cell Structure
The knowledge and concept about the structure of the cells have changed constantly over the past years. Primarily the scientist defines the cells as a simple membranous sac with fluids and some particles. Researches have now revealed that the cell is the more complex and basic unit of life. There are different types of cells and they also differ in shape and structure. The basic three parts of a cell are cell membrane, cytoplasm, and organelle.
Plant Cell
The smallest functional unit of a living organism is known as the cell. It is composed of cytoplasm enclosed by an outer layer known as the cell membrane. A cell is classified as a prokaryotic cell and a eukaryotic cell. A prokaryotic cell does not contain a nucleus, and the genetic material is freely suspended in the cell cytoplasm; for example, bacteria are composed of a prokaryotic cell. Whereas a eukaryotic cell contains a nucleus and membrane-bound cell organelles with a specific function, plants and animal cells are examples of eukaryotic cells.
Plant Cell Types
Plants are made up of a variety of cell types that include both living and dead cells. These cells provide them mechanical and structural support along with the growth of plants. Plant tissue is a group or collection of cells, which are similar in structure and work together to accomplish a specific function. Plant cells are most similar to animal cells, both being eukaryotic cells.
![**Diagram Description:**
The diagram illustrates a section of a eukaryotic cell, focusing on structures involved in protein synthesis and processing.
1. **Nucleus**: Located at the top left, the nucleus is the control center of the cell, containing genetic material.
2. **Cytosol**: The fluid component surrounding organelles.
3. **Structures (A-E)**:
- **A**: Rough Endoplasmic Reticulum (RER) - Identified by the ribosomes on its surface, the RER is involved in protein synthesis.
- **B**: Smooth Endoplasmic Reticulum (SER) - Lacks ribosomes and is associated with lipid synthesis and detoxification.
- **C**: Transport Vesicle - Moves molecules between different compartments within the cell.
- **D**: Golgi Apparatus - Processes and packages proteins for transport.
- **E**: Vesicle - Contains substances for secretion.
4. **Cell Membrane**: Forms the outer boundary of the cell, controlling the movement of substances in and out.
5. **Outside of Cell**: Indicates the external environment surrounding the cell.
**Questions:**
4. **Identify the structures labeled A–E in the diagram.**
*Answer:*
- A: Rough Endoplasmic Reticulum (RER)
- B: Smooth Endoplasmic Reticulum (SER)
- C: Transport Vesicle
- D: Golgi Apparatus
- E: Vesicle
5. **Is this diagram illustrating a plant or an animal cell? What is your reasoning? Provide an example of an organ that this cell could have come from and explain your reasoning.**
*Answer:*
This diagram likely illustrates an animal cell because it lacks plant-specific structures such as a cell wall and chloroplasts. An example of an organ this cell could have come from is the liver, as it contains extensive smooth and rough endoplasmic reticulum for lipid synthesis and protein processing, respectively, features common in liver cells.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F90b2ad7e-71be-4993-92e0-fe2030354ee3%2Fb3fabfdc-5294-426a-8834-04b535bf5568%2Fgpk1sof_processed.jpeg&w=3840&q=75)
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