Treatment FAQ

how are the colonies from the two treatment conditions different

by Mrs. Alessia Cremin MD Published 3 years ago Updated 2 years ago
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How are the colonies from the two treatment conditions different (e.g., size, color, shape, etc.)? The normal colonies were small, yellow, off white, and red. They were shaped like irregular circles. What effect does the heating and cooling procedure have on the bacteria present in the soil samples?

How do bacterial colonies differ from one another?

In what ways do the macroscopic features of bacterial colonies differ from those of molds? Bacterial colonies are generally smooth and small as compared to fungal colonies, which are large and "fuzzy.

How do you differentiate colonies?

Colony morphology is a method that scientists use to describe the characteristics of an individual colony of bacteria growing on agar in a Petri dish. It can be used to help to identify them. A swab from a bin spread directly onto nutrient agar. Colonies differ in their shape, size, colour and texture.

Why are these colonies different in Colour?

Bacteria grow tremendously fast when supplied with an abundance of nutrients. Different types of bacteria will produce different-looking colonies, some colonies may be colored, some colonies are circular in shape, and others are irregular. The characteristics of a colony (shape, size, pigmentation, etc.)

What was the population density of the original sample what would have happened if you had inoculated an agar plate with 1 mL of the original sample?

What would have happened if you hadinoculated an agar plate with 1mL of the original sample? The population density of the original sample was non countable. Inoculating an agar plate with 1 mL ofthe original sample would still yield numerous CFU/plate as based from the observation.

How do bacterial colonies differ from fungal molds colonies?

The main difference between bacterial and fungal colonies is that bacterial colonies are small, smooth or rough colonies with defined margins while fungal colonies are large colonies with a fuzzy appearance. Furthermore, bacterial colonies look wet and shiny while fungal colonies are powder-like.Jun 26, 2018

How do you identify a colony characteristics?

Observing colony morphology is an important skill used in the microbiology laboratory to identify microorganisms. Colonies need to be well isolated from other colonies to observe the characteristic shape, size, color, surface appearance, and texture. Another important characteristic of a bacterial colony is hemolysis.

Why can bacterial colonies be different sizes and shapes?

Simply put, bacteria with different shapes present different physical features to the outside world, and these features help cells cope with and adapt to external conditions.Nov 5, 2007

What are colonies in microbiology?

In microbiology, a “colony” is a group of bacteria, fungi, and other microorganisms grown on a solid agar medium. The cells plated on this medium grow to form a mass, which can then be duplicated for further use in the lab.Nov 3, 2020

Why do bacteria form colonies?

As the bacteria consume the nutrients, they begin to grow and multiply. This generates thousands to millions to billions of cells that begin to pile up, becoming visible to the naked eye. This pile of cells originates from one cell and is called a bacterial colony.Aug 25, 2021

How did endospores affect the results from the heated and unheated soil slurries?

So in the unheated samples, endospores did not grow. So, when endospores survive the heat treatments, so then when they encounter the rich nutrient media conditions, they will germinate and form colonies. Therefore, all heated endospore formers should have grown, and they did.

Which condition produced the most mold growth the fastest the least the slowest?

Dark control produced the most and fastest mold growth. Dark lemon produced the least. Dark vinegar produced the slowest.

Why are the LB nutrient agar plates used in the experiment?

The growth on the nutrient agar plates was used to incubate enough bacterial growth so the pure culture could be transferred to the starch agar plates for further experimenting.

How are the colonies of Massachusetts and Virginia different?

To sum up, the colonies of Massachusetts and Virginia had their major difference in the sense of religion on one hand, and financial motivation on the other. Massachusetts was a charter colony, and therefore, able to determine their own governor. However, Virginia was much more under the influence of the queen, who took care of appointing a governor herself. These two english colonies are a good examples of how different people were thinking at that time. At one colony, religion is set by law and if you do not belief or behave in the same way you are punished to death. On the other side, Virginia handled the religion aspect much different. As an international student from Germany, I learned a lot about american and european history throughout this essay. It is interesting to see how America developed and what it became after its revolutionary war.

What were the social constraints of the Massachusetts Bay Colony?

There were many social constraints from appropriate dress to consumption of alcohol. All colonists were expected to carry a godly and holy demeanor and were held to high social standards3. Different occupations included fishermen, shipbuilding, hunting, lumberjack, and special skills and trades like blacksmith or seamstress. The social structure of the colony included the upper class, which consisted of the clergy, professors, and men of distinguished professions; the middle class, which had most of the colonists, especially traders, shopkeepers, and farmers; and the lower class who fell to some type of enslavement5.

How did the colonists establish a government?

Each of the original 13 colonies had a charter, or a written agreement between the colony and the English Parliament5. This meant that even though the Puritans left England, England still had some control over them. Only males who owned property were allowed to vote but governors were chosen by the king. England controlled trade and taxation but soon faced problems with colonists smuggling and trading goods behind its mother country’s back5.

What was the charter of the 13 colonies?

Each of the original 13 colonies had a charter, or a written agreement between the colony and the English Parliament5. This meant that even though the Puritans left England, England still had some control over them. Only males who owned property were allowed to vote but governors were chosen by the king.

Who founded the Virginia colony?

The colonial period in Virginia had its origin at Jamestown in 1607, and was founded by the Virginia Company of London. The Virginia Company of London was a group of investors who hoped to profit from the new environment. In 1609, a second royal charter arrived in order to provide ultimate political control from the crown. Virginias first two governors were Thomas West and Baron De La Warr, who achieved a strict set of rules. As a royal colony, Virginias politics operated as a "semi-military dictatorship“ in the fact that governors were elected by the crown.

What were the experiences of women during the colonial era?

The experiences of women during the colonial era varied greatly from colony to colony and among different ethnic groups. In New England, for example, the Puritan settlers brought their strong religious values with them to the New World, which dictated that a woman be subordinate to her husband and dedicate herself to rearing “God-fearing” children to the best of her ability. Among Puritan settlers in New England, wives almost never worked in the fields with their husbands. In German communities in Pennsylvania, however, many women worked in fields and stables. German and Dutch immigrants granted women more control over property, which was not permitted in the local English law. Unlike English colonial wives, German and Dutch wives owned their own clothes and other items and were also given the ability to write wills disposing of the property brought into the marriage.

What was the role of women in colonial America?

The Role of Women in the Colonies. Women played an integral role in the development of colonial America, despite having few legal rights.

How many people were killed in the Salem Witch Trials?

The trials resulted in the executions of 20 people, 14 of them women and all but one by hanging. Five others (including two infant children) died in prison.

When were the Salem Witch Trials?

The Salem witch trials were a series of hearings and prosecutions of people accused of witchcraft in colonial Massachusetts between 1692 and 1693.

Why were women more susceptible to suspicions of witchcraft?

Women were more susceptible to suspicions of witchcraft because they were perceived, in Puritan society, to have weaker constitutions that were more likely to be inhabited by the Devil.

What did the Puritans believe?

Like many other Europeans, the Puritans of New England believed in the supernatural. Every event in the colonies appeared to be a sign of God’s mercy or judgment, and it was commonly believed that witches allied themselves with the Devil to carry out evil deeds or cause deliberate harm.

Who weakened the idea that husbands were natural rulers over their wives?

Much later during the colonial experience, as the values of the American Enlightenment were imported from Britain, the philosophies of such thinkers as John Locke weakened the view that husbands were natural “rulers” over their wives and replaced them with a (slightly) more liberal conception of marriage.

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