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Jul 1, 2024 · Erbium is a silvery-white metallic element belonging to the lanthanide series of the periodic table, with the atomic number 68. Known for its pink-colored ions, erbium finds extensive use in optical fiber amplifiers, lasers, and in the coloring of glasses and ceramics.
- Endoplasmic Reticulum Definition
- Endoplasmic Reticulum Overview
- Endoplasmic Reticulum Function
- Structure of The Endoplasmic Reticulum
- Endoplasmic Reticulum Location
- Types of Endoplasmic Reticulum
The endoplasmic reticulum (ER) is a large organelle made of membranous sheets and tubules that begin near the nucleus and extend across the cell. The endoplasmic reticulum creates, packages, and secretes many of the products created by a cell. Ribosomes, which create proteins, line a portion of the endoplasmic reticulum.
The entire structure can account for a large proportion of the endomembrane system of the cell. For instance, in cells such as liver hepatocytes that are specialized for protein secretion and detoxification, the ER can account for more than 50% of the total lipid bilayer of the cell.Similarly, the ER membrane system is particularly prominent in pan...
The ER plays a number of roles within the cell, from protein synthesis and lipid metabolism to detoxification of the cell. Cisternae, each of the small folds of the endoplasmic reticulum, are commonly associated with lipid metabolism. This creates the plasma membrane of the cell, as well as additional endoplasmic reticulum and organelles. They also...
The endoplasmic reticulum membrane system can be morphologically divided into two structures–cisternae and sheets. Cisternae are tubular in structure and form a three-dimensional polygonal network.They are about 50 nm in diameter in mammals and 30 nm in diameter in yeast. ER sheets, on the other hand, are membrane-enclosed, two-dimensional flattene...
The endoplasmic reticulum processes most of the instructions from the nucleus. As such, the endoplasmic reticulum surrounds the nucleus and radiates outward. In cells that secrete many products for the rest of the body, the endoplasmic reticulum can account for more than 50% of the cell. In general, the nucleus expresses mRNA (messenger RNA), which...
There are two major types of ER within each cell – smooth endoplasmic reticulum (SER) and rough endoplasmic reticulum (RER). Each has distinct functions, and often, differing morphology. The SER is involved in lipid metabolism and acts as the calcium store for the cell. This is particularly important in muscle cells that need Ca2+ions for contracti...
Dec 29, 2021 · Defining chemistry. When individuals experience chemistry, they experience their interaction as something more than the sum of their separate contributions. Interpersonal chemistry requires coordination, in that the interacting individuals share and match their goals and efforts, supporting each other in the process.
Jun 26, 2021 · Take a look at what systematic and random error are, get examples, and learn how to minimize their effects on measurements. Systematic error has the same value or proportion for every measurement, while random error fluctuates unpredictably.
May 7, 2021 · For precise measurements, you aim to get repeated observations as close to each other as possible. Random error introduces variability between different measurements of the same thing, while systematic error skews your measurement away from the true value in a specific direction.
- Random and systematic error are two types of measurement error. Random error is a chance difference between the observed and true values of somethi...
- Systematic error is generally a bigger problem in research. With random error, multiple measurements will tend to cluster around the true value. Wh...
- Random error is almost always present in scientific studies, even in highly controlled settings. While you can’t eradicate it completely, you can...
Emotion regulation (ER) refers to attempts to influence emotions in ourselves or others. Over the past several decades, ER has become a popular topic across many subdisciplines within psychology.
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Primary scientific research examples include lab, field and natural experiments; secondary scientific research examples include meta-analyses, systematic reviews and reviews. What are the seven stages of scientific research?
