<u>Bone tissue</u>
You are observing a tissue under the microscope and notice dark concentric circles of matrix and osteocytes in lacunae. You identify this tissue as <u>bone tissue.</u>
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<h3>What does bone tissue look like?</h3>
- Osteons or haversian systems are tightly packed together to form compact bone.
- The osteon is made up of concentric rings (lamellae) of matrix surrounding a central canal known as the osteonic (haversian) canal.
- The bone cells (osteocytes), which are situated between the rings of matrix, are found in regions known as lacunae.
<h3>Which 4 tissues are present in bones?</h3>
- Osteoblasts, osteocytes, osteoclasts, and osteogenic cells are the four types of bone cells that make up bone tissues.
<h3>How does bone tissue develop?</h3>
- The recruitment and growth of bone progenitor cells from neighboring tissues is the first step in the development of bone tissue.
- Next come differentiation, matrix production, and mineralization.
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There are several reasons why the body temperature falls continuously just like when you are exposed to an extreme cold weather or wearing wet clothing for a long time. This abnormality state of the body temperature can lead into some potential diseases and disorders like infection, insomnia, stress and sepsis.
Answer:
By way of introduction, A260/A280 ratio is use to measure Protein Contamination. This procedure was first described to measure protein purity in the presence of nucleic acids. However it is now commonly used to assess protein contamination of DNA. The method to determine the concentration of protein contamination by using A260/280 ratio method is well explained below by filling in the missing words.
Explanation:
The A260/A280 ratio method estimates protein __purity___ by measuring the absorbance maximum at 280nm caused by the amino acids__cytosine___, ____Adenine____, and ___Guanine_________ Since ___Spectrophotometer____ also absorbs in the UV range, we can correct for this contaminate by measuring the absorbance maximum at ____260nm______ and using the following equation: Concentration (µg/ml) = (A260 reading – A320 reading) × dilution factor × 50µg/ml___ When extrapolated from a standard curve, the Bradford data indicates the amount (in _ug__ ) of __unknown ___ protein found in a sample. If you know the volume of sample that was added to the assay then you can calculate the protein ____concentration ___ of the sample. The coomassie blue dye in the Bradford assay specifically binds primary ¬¬___sulfonic___ and __positive amines__ groups of the amino acid side groups of the proteins. The more the dye binds to the sample, the _anionic_ the blue color will be, and the absorbance at 595¬nm will be_shifted Amax___. A sample with an unusually __protein___ number of ___280nm of Tyrosine __ [give a specific example] amino acids will underestimate the total amount of protein present in the sample.
Answer:
Downstream, along the river is vague and middle of town makes no sense, upstream would mean that the pollution would run right past the town and cities and could pollute the town's and cities
