The reults for the macroscopic part: 0.30M glycerin – solution was translucent (could see text behind the test tube) 0.15M NaCl – solution was opaque (could not see text behind the test tube) 0.30M NaCl – solution was opaque (could not see text behind the test tube) 0.15M glucose – solution was translucent (could see text behind the test tube) 0.30M glucose – solution was opaque (could not see text behind the test tube) 0.30M Urea – solution was translucent (could see text behind the test tube) Results for microscopic part: 0.30M glycerin – no cells present 0.15M NaCl – normal sized cells 0.30M NaCl – crenated (shrunken and star-shaped) cells 0.15M glucose – no cells present 0.30M glucose – normal sized cells 0.30M Urea – no cells present Determine the osmolarity (hypoosmotic, isosmotic, or hyperosmotic) and tonicity (hypotonic, isotonic, hypertonic) of the following solutions.In which solutions did the osmolarity NOT match the tonicity? For those solutions, why did the osmolarity NOT match the tonicity?
Proteins
We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.
Protein Expression
The method by which living organisms synthesize proteins and further modify and regulate them is called protein expression. Protein expression plays a significant role in several types of research and is highly utilized in molecular biology, biochemistry, and protein research laboratories.
The reults for the macroscopic part:
- 0.30M glycerin – solution was translucent (could see text behind the test tube)
- 0.15M NaCl – solution was opaque (could not see text behind the test tube)
- 0.30M NaCl – solution was opaque (could not see text behind the test tube)
- 0.15M glucose – solution was translucent (could see text behind the test tube)
- 0.30M glucose – solution was opaque (could not see text behind the test tube)
- 0.30M Urea – solution was translucent (could see text behind the test tube)
Results for microscopic part:
- 0.30M glycerin – no cells present
- 0.15M NaCl – normal sized cells
- 0.30M NaCl – crenated (shrunken and star-shaped) cells
- 0.15M glucose – no cells present
- 0.30M glucose – normal sized cells
- 0.30M Urea – no cells present
Determine the osmolarity (hypoosmotic, isosmotic, or hyperosmotic) and tonicity (hypotonic, isotonic, hypertonic) of the following solutions.In which solutions did the osmolarity NOT match the tonicity? For those solutions, why did the osmolarity NOT match the tonicity?
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