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den301095 [7]
3 years ago
10

In which energy level are valence electrons located?

Biology
1 answer:
KengaRu [80]3 years ago
4 0

Elements in the first row (hydrogen and helium) will have outer electrons in the first energy level. Their principal quantum number is 1. Elements in the second row (lithium through neon) will have valence electrons in the second energy level with a principal quantum number of 2.

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Cellulose, chitin, and the polysaccharide that makes up the cell walls of many bacteria are the structural polysaccharides, wher
Harrizon [31]

Answer:

B

Explanation:

Wall cell has to be strong to bring protection to the cell. In general it is made of beta-glycosidic bonds.

Storage polysaccharides, are a source of available energy for the cell in any moment. Therefore, the bonds of storage polysaccharides need to be weak. In that way, when the cell needs energy from carbohydrates, it is not going to spend so much energy trying to break the bond.  

 

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4 years ago
What would happen if the tripsin enzyme was placed in your stomach
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Trypsin is an enzyme that helps us digest protein. In the small intestine, trypsin breaks down proteins, continuing the process of digestion that began in the stomach. Trypsin is produced by the pancreas in an inactive form called trypsinogen.

Google and hope this helps
8 0
3 years ago
3. Were there any stages of the cell cycle that you did not observe? How can you explain this using evidence from the cell cycle
mario62 [17]

Answer:

The surface area of the cell increases to volume ratio

Explanation:

As a cell grows, the surface area of the cell increases to volume ratio. When cell division occurs, the surface area is distributed and each daughter cell have less surface area but with the passage of time, the surface area increases. The main function of mitosis is to increase the population of the cell, the cell must be divided into two daughter cells in the process of mitosis. Tumors occurs when the process of mitosis is uncontrollable. One observation that is found interesting while looking at the onion root tip cells is the multiplication of the cells by the process of mitosis.

5 0
4 years ago
Which of the following factors are biotic?
boyakko [2]

Answer:

soil temperature soil nutrients soil ph

5 0
2 years ago
Read 2 more answers
3. Susceptibility to antibiotics is a trait, or inherited characteristic, of bacteria.
tatuchka [14]

Bacteria can be SUSCEPTIBLE or RESISTANT to antibiotics. Susceptible bacteria can't grow if the drug (i.e., the antibiotic) is present.

Susceptibility to antibiotics occurs when bacterial colonies can't grow in presence of the antibiotic (e.g., erythromycin).

Some antibiotic-resistant bacteria include:

  • Methicillin-resistant <em>Staphylococcus aureus</em> (it is one of the most common antibiotic-resistant bacteria)

  • Vancomycin-resistant <em>Enterococcus</em>

Learn more in:

brainly.com/question/1182327?referrer=searchResults

4 0
3 years ago
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