What does smooth endoplasmic look like?
What does smooth endoplasmic look like?
The smooth ER is a continuous extension of the rough ER, located more distally from the nucleus. Whereas the rough ER is shaped like flattened hollow pancakes in many cell types, the smooth ER is usually more tubular in structure, forming a lacelike reticulum.
What is an example of smooth endoplasmic reticulum?
The smooth endoplasmic reticulum is present in almost all eukaryotic cells. Examples of cells with abundant sER are sebaceous glands, gonadal cells involved in producing steroid hormones (such as Leydig cells in the testis and follicular cells in the ovary), hepatocytes in the liver, and cells of striated muscles.
What is the structure of the smooth ER?
Smooth ER consists of a long network of a folded, tube-like structure. You can think of it like a pipeline with a lot of twists and turns. The interior of the smooth ER is called the lumen, which is enclosed by a phospholipid membrane, just like the membrane that encloses the entire cell.
What color is the smooth endoplasmic reticulum?
light blue
The smooth endoplasmic reticulum looks similar to the rough, but it does not have ribosomes. It has a few jobs, such as creating and storing lipids. Color the smooth E.R. light blue.
What are the three forms of smooth endoplasmic reticulum?
The endoplasmic reticulum may occur in the following three forms:
- Lamellar form or cisternae.
- Vesicular form or vesicle and.
- Tubular form or tubules.
What are the functions of SER and RER?
Introduction on Rough and Smooth Endoplasmic Reticulum
| RER-Rough Endoplasmic Reticulum | SER-Smooth Endoplasmic Reticulum |
|---|---|
| They are found near the nucleus of the cell. | They are found away from the nucleus in the cell. |
| Their function is to synthesize proteins. | Their function is to synthesize lipids. |
What does the ER do in a cell?
The ER is the largest organelle in the cell and is a major site of protein synthesis and transport, protein folding, lipid and steroid synthesis, carbohydrate metabolism and calcium storage [1–7].
What are diseases caused by endoplasmic reticulum?
Endoplasmic reticulum (ER) dysfunction might have an important part to play in a range of neurological disorders, including cerebral ischaemia, sleep apnoea, Alzheimer’s disease , multiple sclerosis, amyotrophic lateral sclerosis, the prion diseases , and familial encephalopathy with neuroserpin inclusion bodies.
What are the characteristics of the endoplasmic reticulum?
The endoplasmic reticulum (ER) is a network of flattened sacs and branching tubules that extends throughout the cytoplasm in plant and animal cells. These sacs and tubules are all interconnected by a single continuous membrane so that the organelle has only one large, highly convoluted and complexly arranged lumen (internal space).
What are some examples of the endoplasmic reticulum?
The endoplasmic reticulum is defined as a series of folded membranes in the cells which are associated with protein synthesis, storage and the movement of cellular materials. An example of the endoplasmic reticulum is the place that steroids are stored in the cells for later use.
What makes the rough endoplasmic reticulum rough?
Rough endoplasmic reticulum looks rough under a microscope because it is covered by little ribosomes, that help with protein synthesis.
What does smooth endoplasmic look like? The smooth ER is a continuous extension of the rough ER, located more distally from the nucleus. Whereas the rough ER is shaped like flattened hollow pancakes in many cell types, the smooth ER is usually more tubular in structure, forming a lacelike reticulum. What is an example of…