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Misha Larkins [42]
3 years ago
8

How were dead S-type cells able to transform living R-type cells?

Biology
1 answer:
antiseptic1488 [7]3 years ago
6 0

Answer:

Griffith concluded that in the presence of the dead S-type pneumococcus cells, some of the living R-type cells had been transformed into virulent S cells. These cells were able to grow in the bodies of the mice, causing pneumonia and multiplying in the blood. ... The DNA alone caused bacterial transformation.

Griffith introduced heat-killed 'S'- strain bacteria Streptococcus in to a mouse along with live 'R' strain bacteria. ... Some 'transforming principle' transferred from the heat-killed 'S' strain had enabled the 'R' strain to synthesise a smooth polysaccharide coat and become virulent.

In this experiments, Griffith injected mice in the lab with live R-type of bacteria. They did not suffer from the disease. ... He thus concluded that heat-killed smooth type bacterial caused a transformation of the living rough type bacteria. This experiment suggested that DNA and not proteins are the genetic material.

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Compare and discuss how cells store energy and release energy using ATP. Be specific! You may draw the cycle
Inessa [10]

Answer:

Due to process of respiration, ATP is formed and release energy by breaking of ATP.

Explanation:

Cells store energy in the form of adenosine triphosphate (ATP) and also release energy in the form of ATP because ATP has a chemical energy which can be gained by breaking down ATP molecule and use this chemical energy in different cellular processes. Cells produces energy in the form of ATP molecule in the mitochondria of the cell by broken down of glucose in the presence of oxygen in the process of respiration. By breaking of ATP, ADP is formed and the energy present in the bond is used by the cell in different activities.

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2 years ago
Equilibrium is when the concentration is the same throughout an entire system. Explain how a cell reaches equilibrium in all thr
Sati [7]

The cell reaches equilibrium in a hypertonic solution by removing water from it so that the two concentrations are isotonic, in a hypotonic solution the water will move into the cell and in an isotonic solution the water will not move anywhere anymore. Both cells have the same solute concentration.

<h3>How do these equilibrium processes occur?</h3>

The hypertonic solution is the one that has a solute concentration greater than that of the cell, so in order to reach the same concentration, the water in the cell will leave to equal the solute concentration in the cell. The hypotonic solution, on the other hand, is the one that has a lower solute concentration than the cell, so the water will enter the cell to have the same concentration.

Finally in the isotonic solution nothing will happen, since both inside the cell and in the solution itself there will be the same concentration of solute, so no concentration has to be equalized.

Therefore, we can confirm that the cell reaches equilibrium in a hypertonic solution by removing water from it so that the two concentrations are isotonic, in a hypotonic solution the water will move into the cell and in an isotonic solution the water will not move anywhere anymore. Both cells have the same solute concentration.

To learn more about solutions visit: brainly.com/question/7932885

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6 0
1 year ago
Do molecules have more energy in a solid, liquid, or gas?
borishaifa [10]

Answer: answer is below

Explanation:

Molecules in a liquid have more energy than molecules in a solid. And if you heat it up even more, the molecules will speed up so much that they won't be stuck together at all. The molecules in the gas have the most energy.

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2 years ago
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Complete the sentence.Around1900, European nations built up their military forces, formed alliances, and expanded their colonial
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<span>B. maintain a balance of power.

The alliances among nations in Europe was established to maintain a balance of power in the region.

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3 years ago
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Trait approaches to leadership propose that leadership ability arises from:
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Trait approaches to leadership propose that leadership ability arises from distinctive personal characteristics. These personality traits shape personality.

Personality refers to the singular and unique patterns of thoughts, emotions and behaviors that exhibit a person.

The trait approaches represent different methodologies to analyze the personality of a person (for example, his/her leadership skills).

These approaches (trait approaches) put major emphasis on the traits of a person that can be considered markers of personality.

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