answersLogoWhite

0

so that we can dilute the consentrated bacteria (or whatever) into forming a single colony that can be idntifiied with the naked eye

User Avatar

Colby Leffler

Lvl 13
3y ago

What else can I help you with?

Continue Learning about Earth Science

The purpose or objective of streak plating is what?

Streak plating is used to isolate individual bacterial colonies from a mixed culture by spreading cells across a solid agar surface in a way that thins out and separates the colonies. This technique helps to obtain pure cultures for further study or testing, such as identifying and characterizing specific bacteria.


Does a ruby have a streak?

No, rubies are too hard to leave a streak. They just scratch the plate.


What is the difference between alkaline zinc plating and cyanide zinc plating?

The main difference between alkaline zinc plating and cyanide zinc plating is the type of bath used in the plating process. Alkaline zinc plating uses an alkaline electrolyte solution, while cyanide zinc plating uses a cyanide-based electrolyte solution. Alkaline zinc plating is considered more environmentally friendly compared to cyanide zinc plating, which contains toxic cyanide compounds.


How do you identify minerals according to streak?

Minerals can be identified by their streak, which is the color of the mineral when it is broken down into a powder. To test a mineral's streak, a streak plate (usually made of unglazed porcelain) is used. The streak is usually compared to a streak color chart, which contains the colors of a variety of minerals. To test a mineral for its streak, take a small piece of the mineral and rub it on the streak plate. The resulting powder is then compared to the streak chart to identify the mineral. Streak is an important property of minerals because it is more reliable than the external color of the mineral. External color can be altered by impurities and oxidation, but the streak of a mineral does not change. Therefore, testing a mineral's streak is an effective way of identifying it.When identifying minerals according to streak, it is important to consider the following properties: Color - the color of the powder when rubbed on the streak plate. Luster - the shine of the powder when rubbed on the streak plate. Texture - the feel of the powder when rubbed on the streak plate. Opacity - the transparency of the powder when rubbed on the streak plate.By considering these properties when testing a mineral's streak, it is possible to identify the mineral accurately and quickly.


Which mineral has a metallic luster a black streak and is an ore of iron?

Magnetite

Related Questions

What are the benefit of streak plating?

Streak plating helps isolate individual bacterial colonies on an agar plate for observation and analysis. It allows for the identification of different types of bacteria present in a sample by creating distinct and separated colonies. Streak plating is a simple and effective method for quantifying and studying bacterial populations.


What is the simplest technique for isolating bacteria in growth media is referred to as the?

The simplest technique for isolating bacteria in growth media is referred to as streak plating. In streak plating, a small sample containing mixed bacterial populations is spread in a pattern over the surface of an agar plate, allowing individual bacterial colonies to form and grow separately.


What is the significance of using a 'dry and hard' agar plate in streak plating?

Why is it impotant to use dry and hard agar for streaking


Why is enrichment necessary for the isolation of bacteriophages?

To increases the probability that colonies of the desired organism will be isolated upon subsequent streak-plating and not crowded out by others.


The purpose or objective of streak plating is what?

Streak plating is used to isolate individual bacterial colonies from a mixed culture by spreading cells across a solid agar surface in a way that thins out and separates the colonies. This technique helps to obtain pure cultures for further study or testing, such as identifying and characterizing specific bacteria.


Does a ruby have a streak?

No, rubies are too hard to leave a streak. They just scratch the plate.


Why is streak an important physical property of minerals?

A streak test is used to determine a minerals streak color. This can help in the identification of minerals.


What service company does plating and polishing chrome?

A metal plating company or a metal finishing company would be able to provide services for plating and polishing chrome. It's important to find a reputable company with experience in chrome plating to ensure high-quality results.


Will ultrasonic cleaning damage gold plating?

Ultrasonic cleaning should not damage gold plating as long as it is done properly. It is important to follow the manufacturer's guidelines for the cleaning solution and duration of the cleaning process to avoid any potential damage to the gold plating.


How do you prevent pitting porosity in hard chrome plating?

To prevent pitting porosity in hard chrome plating, it is important to properly clean and prepare the surface before plating to remove any contaminants. Ensure that the plating solution is free of impurities and properly maintained. Use appropriate plating parameters such as current density, temperature, and duration to achieve a smooth and uniform deposit. Regularly inspect and maintain plating equipment to prevent issues that may lead to pitting porosity.


How is a minterals streak determinded?

Streak color is determined by scraping the mineral across a a streak plate, (which is made of unglazed porcelain), and then observing the color of the streak, which is left on the plate. Note that some minerals do not leave a streak, as they are too hard. Thus, it is important to learn other identification methods, to use in conjunction with streak color, in order to identify minerals.


What is immersion plating?

it is a plating of immersion

Trending Questions
Where does appinite fit in the classification of plutonic rocks? What is 40 f to celsius? Where was there an earthquake? If an organism is able to convert the sodium citrate in simmons citrate agar to pyruvate what are some possible reasons why an organism might ferment rather than metabolize it oxidatively in the Krebs? Does boiling a hot dog reduce sodium? What is the texture of andesite? If you have 80 grams of NaCl in 100 grams of water at 20 C is that undersaturated saturated or oversaturated? What are the harmful gases released from firecrackers? What mass of potassium nitrate would be needed to produce a saturated solution of potassium nitrate in 50 grams of water at 313K? Is copper a good conductor of heat and electricity? What is used to describe the continuous heating and cooling of magma in the mantle? What are facts about the forest floor in a rainforest? How do scientists learn about the levels of carbon at different times in the past? What are the characteristics of the soil in range land? How does granite form into Obsidian? How did plants start to grow on Earth? What external force has affected more of the earth and surface than any other? How many mL of a 2.0 m NaBr solution are needed to make 200 mL of 0.50 m NaBr? What engineering techniques have been used in San Francisco to ensure that buildings and other large structures remain stable in the event of a earthquake? The greenhouse effect keeps the earth 33 degree c 60 degreefwarmer than it other wise would be?