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Gnoma [55]
2 years ago
8

Explain the methods of preservation with examples and diagrams?

Biology
1 answer:
nata0808 [166]2 years ago
4 0

Answer:

Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals.

Explanation:

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A disease was caused by a bacterium; you want to produce a biological product to kill this bacterium. Which product you have to
makvit [3.9K]

Answer:

The product that must be produced to kill a bacterium —which causes a disease— is an antibiotic, which through biotechnology can investigate the structure of the bacterium and synthesize the chemical formula needed to produce antibiotics in high amounts.

Explanation:

Antibiotics are specific medicines for the treatment of infectious diseases, produced by bacteria. <u>Antibiotics can kill bacteria and prevent their replication</u>.

If a disease is produced by bacteria, the product that is necessary to kill those microbes is an antibiotic, for which biotechnology is useful.

By using biotechnology —a branch of biology that uses technology as a research and development tool— it is possible:

  • <em>Know the structure, functions and behavior of pathogenic bacterial strains. </em>
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  • <em>The synthesis and production of antibiotics on a large scale, allowing their sufficient availability for use.</em>
4 0
3 years ago
What are the two different results of a lack of calcium and a lack of atp?
liq [111]
<span>There are numerous proteins in muscle. The main two are thin actin filaments and thick myosin filaments. Thin filaments form a scaffold that thick filaments crawl up. There are many regulatory proteins such as troponin I, troponin C, and tropomyosin. There are also proteins that stabilize the cells and anchor the filaments to other cellular structures. A prime example of this is dystrophin. This protein is thought to stabilize the cell membrane during contraction and prevent it from breaking. Those who lack completely lack dystrophin have a disorder known as Duchene muscular dystrophy. This disease is characterized by muscle wasting begininng in at a young age and usually results in death by the mid 20s. The sarcomere is the repeating unit of skeletal muscle. 

Muscle cells contract by interactions of myosin heads on thick filament with actin monomers on thin filament. The myosin heads bind tightly to actin monomers until ATP binds to the myosin. This causes the release of the myosin head, which subsequently swings foward and associates with an actin monomer further up the thin filament. Hydrolysis and of ATP and the release of ADP and a phosphate allows the mysosin head to pull the thick filament up the thin filament. There are roughly 500 myosin heads on each thick filament and when they repeatedly move up the thin filament, the muscle contracts. There are many regulatory proteins of this contraction. For example, troponin I, troponin C, and tropomyosin form a regulatory switch that blocks myosin heads from binding to actin monomers until a nerve impulse stimulates an influx of calcium. This causes the switch to allow the myosin to bind to the actin and allows the muscle to contract. </span><span>
</span>
6 0
3 years ago
What is the role of the spindle during mitosis
lora16 [44]
It is basically a structure which helps segregate the chormosomes in to the daughter cells

hope this was helpful
6 0
3 years ago
Read 2 more answers
Please help I’ll give brainliest
Artyom0805 [142]
Hydrogen because it only has one valence electron I believe.
5 0
3 years ago
When glucose is present, enzyme IIAglc is __________ and LacY is __________. a. phosphorylated; inhibited b. not phosphorylated;
olga_2 [115]

Answer:

Option B, not phosphorylated; inhibited

Explanation:

Glucose 6 acts as a catobolite repressant . A catobolite repressant which is usually a carbon compound inhibits the operon transcription. In the presence of glucose -6, unphosphorylated enzyme IIAGlc  inhibits the transportation system and hence prevents the utilization of lactose. Glucose‐6‐phosphate and other non‐PTS carbon causes inducer exclusion thereby leading to dephosphorylation of enzyme IIAGl without getting transported.

Hence, option B is correct

5 0
3 years ago
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