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Sonja [21]
3 years ago
8

In E. coli protein synthesis, the initiation complex contains

Biology
1 answer:
Ksenya-84 [330]3 years ago
7 0

Answer:

The correct answer will be option-C.

Explanation:

The process of translation in prokaryotes is complex process and proceeds in three steps: initiation, elongation and termination.

1. Ribosomal subunits: 50S (5S and 23S subunit) and 30S (16S and proteins).

2. Initiation factors: IF1, IF-2 and IF-3 which help in the formation of assembly.

3 GTP: guanosine triphosphate as a source of energy.

4. Charged tRNA: with N-formylmethionine is the first amino acid.

5. mRNA: the RNA to be translated.

Since the option contains both 50S and 16S components of ribosome thus, Option-C is the correct answer.

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Bone resorption is a process whereby bone matrix is ____________ by substances released by ____________ . The lysosomes inside o
Nikitich [7]

Answer:

a. destroyed

b. osteoclasts

c. proteolytic enzymes

d. hydrochloric acid

e. blood

f. low

Explanation:

Resorption is the loss of substance from any mineralized tissue, mediated by cellular and humoral systems of their own. The four mineralized tissues of our economy, bone, cement, dentin (mineralized fraction of the dentino-pulp functional complex) and enamel, offer different degrees of resistance to resorption. The bone has the greatest lability and the enamel the least. The fact that the bone tissue is the least resistant to resorption is used to move and reposition teeth by controlled forces (orthodontics); and the fact that the enamel is the most resistant has led to think that it does not suffer from resorption.

Osteoclasts They are the spring cells par excellence; they belong to the lineage of the monocitomacrophages. They are large, multinucleated mobile cells, with a clear area and a rough brush border that live for about two weeks and disappear by apoptosis (cell death programmed by fragmentation in membrane particles that allows their phagocytosis without inflammation). They are responsible for the destruction of the organic and inorganic parts of the mineralized bone fraction. They are active both in the processes of the physiological renewal of the bone and in those of its pathological loss.

8 0
3 years ago
Natural Bridge Cavern was formed by water that seeped into the soft limestone in central Texas. What is this process called?
Mamont248 [21]

Answer:

Chemical weathering

Explanation:

Chemical weathering is the process when rain chemicals react with rocks and minerals. In this process, the rocks are weakened. This chemical happening provokes the chemical reaction in the rock or in the mineral.

Chemical weathering is a spontaneous process and it leads to a more stable state for natural materials under a given set of conditions.

7 0
2 years ago
Select three changes that are examples of physical change.
Marysya12 [62]

Answer:

ice melting

juice freezing

paper folding

Explanation:

The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.

3 0
3 years ago
Read 2 more answers
When amino acids are degraded for energy or glucose production, their amine groups are incorporated by the liver into ____.
masya89 [10]

Answer:

The correct answer is - urea.

Explanation:

In our body, to produce energy or produce glucose our body breaks the amino acids, it gets from proteins mainly. These amino acids are mainly breakdown into amine groups.

The human body has a unique ability to pack ammonia(amine group) by converting it to urea and incorporated and produced by the liver using 2 molecules of ammonia (NH3) and 1 molecule of carbon dioxide (CO2).  This incorporated urea is then secreted from the liver and incorporated into the urine in the kidney for further process.

8 0
2 years ago
Nails are made of:
Fudgin [204]

Answer:

keratin

Your nails are made of keratin

Keratin is a type of protein that forms the cells that make up the tissue in nails and other parts of your body.

Explanation:

6 0
3 years ago
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