Serial dilution procedure only counts viable cells while other methods may count. What is the advantages and disadvantages to the serial dilution agar plate. Direct Improvement With Direct Dilution. The serial dilution technique 1 using pipets is a. Direct dilution provides a number of advantages over serial. LAB REPORT OF MICROBIOLOGY.

A disadvantage of the streak plate technique could be colonyisolation problems. If the streaking technique is not done properlyor if there is too much of an organism present on the inoculatingloop then the cells can cluster and form what looks like one colonybut it can actually be a couple colonies (made from a couplecells). This can cause an inaccurate colony forming unit count.

What is the differences between a streak plate technique and a serial dilution technique?

what is serial dilution and spread plate technique Read More

Could some bacteria grow on the streak plate and not be seen using the pour plate technique Explain?

Non conforming golf drivers reviews. Yes, although aerobic bacteria will not grow when using the pour plate technique, it can grow on the streak plate. Bacteria that is sensitive to low oxygen may not grow on a pour plate. Read More

Function of streak plate technique?

way of separating bacteria to grow as single colonies Read More

What are Advantages of pour-plate method over streak plate method?

The pour plate method requires somewhat less skill than that required for a good streak plate; a disadvantage, however, is that it requires more media, tubes, and plates. Read More

Could some bacteria grow on the streak plate and not be seen using the pour plate technique?

Yes. Some aerobic organisms do not grow in a pour plate but they can proliferate on a streak plate. Experminental errors may also lead to bacterial growth. Read More

What is the goal of streak plate technique?

the goal is to obtain isolated colonies of pure mixed culture Read More Anime prince of tennis sub indo goblin.

What is streak plate technique?

A streak plate technique is used to isolate a single species from a mixed species population. You take a small sample of the mixed species on a sterile loop and streak an agar medium into four zones, reflaming the loop between zones. After incubation, single species colonies should be visible within the fourth zone. Read More

Will diamond leave a streak on a streak plate?

Diamond will not leave a streak on a porcelain streak plate because diamond is harder than the streak plate. It will leave a scratch on the streak plate for the same reason. Read More

What are the disadvantages using streak plate method?

Streak Plate method cannot be used for the enumeration of the approximate number of bacteria in the given sample. It can used only for obtaining isolated colonies in Pure culture. This is because, In streak plate method, 1. the amount of inoculum added is not a measured quantity. 2. colony count method cannot be applied on streak plate, since except in the fourth quadrant, isolated colonies are not formed. Thus Streak plate method can be… Read More

What is the purpose of streak plate?

A streak plate is used to determine the streak colour of a mineral. You take the mineral and scratch it against the streak plate, and it will create a coloured streak on the plate. The streak is not always the same colour as the mineral itself. Read More

Does a diamond leave a streak on a streak plate?

Diamond will not leave a streak on a streak plate. This is because the diamond is harder than the streak plate. It may leave a scratch, though. Read More

Describe the correct streak plate technique?

Streak plate technique is used to isolate individual bacteria strains, at first streak you might get hundreds but continual streaking will isolate them down to the 1 colony needed. Sterilize by fire a wire loop, put specimen using on loop, then directly put on agar plate in closely s shaped streaks top to middle. Do not dig into agar, then sterilize wire loop by fire again and then streak through agar plate a different way… Read More

What happens if you rub the mineral across a streak plate but the mineral does not leave a streak?

The lack of a streak would indicate that the mineral is harder than the streak plate, or the color of the streak is the same as the color of the streak plate. Read More

Why is streak plate technique important?

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

Will a diamond leave a streak on a streak plate?

Diamond will not leave a streak on a streak plate because diamond is harder than the unglazed porcelain streak plate. The streak is the color of the powdered mineral residue left on the streak plate surface when pulling a mineral across it. With a Mohs hardness of 10 (on a scale of 1-10) a streak could only be left on a diamond plated streak plate. Diamond streak is colorless. Read More

Can bacteria grow on a streak plate and not be seen using the pour plate technique?

Put simply - yes. Some strictly aerobic organisms will not grow in a pour plate. They may, however proliferate on a streak plate. Also consider the posibility of experimental error. The culture may have been added to the molten agar when it was too hot for the organisms to survive. Read More

WHAT IS THE the principle of streak plate technique of producing a pure culture?

it is based on the spacial separation of single cells which in turn grow into pure colonies. Read More

Why is the streak-stab technique preferred rather than incubating the plates anaerobically?

The streak-stab technique is preferred over incubating the plates anaerobically because when isolating colonies allows biochemical testing to be performed. When the plate is incubated anaerobically it lacks oxygen and can not be biochemically tested. Read More

When you rub a pumice rock on a streak plate what color is left on the streak plate?

I believe when you rub a pumice rock on a streak plate you will get the color of white. Read More

How can a streak plate be contaminated?

In the streak plate technique, a loop is used to streak the mixed sample many times over the surface of a solid culture medium in a Petri dish plate. Theoretically, the process of streaking the loop repeatedly over the agar surface causes the bacteria to fall off the loop one by one and ultimately to be distributed over the agar surface, where each cell develops into a colony Read More

Can you show me a picture of a streak plate that has a streak from aquamarine on it?

I do not have a picture, but when you scratch aquamarine on a streak plate, the powder will be white colored. Read More

How do the results of the pour-plate method compare with those obtained using the streak plate and spread -plate methods?

In the pour plate, the microorganisms will grow within the gel that has been set, and in the spread-plate technique, growth will be on top of the agar gel where it has been spread. Read More

How do you determine the streak of a mineral whose Mohs scale is higher than the streak plate?

You can determine the streak of a mineral whose Mohs scale is higher than the streak plate by either filing or crushing with a hammer before rubbing the sample on a streak plate. Read More

Why do some very hard minerals leave no streak?

Some minerals are harder than a streak plate and will therefore leave no streak or the powder of the ceramic streak plate. Read More

What is the purpose of streaking bacteria for isolation?

By using streak plate technique to spread a clinical sample out on the surface of a growth medium individual types of bacteria can be isolated Read More

Why doesn't the mineral topaz leave a streak on a streak plate?

It leaves a scratch instead of a streak because Topaz has a higher number on the Moh's scale compared to the streak plate. Read More

What is the name of the streak when you apply specimen to agar plate?

It is called a streak plate, inoculating the agar plate with a zig-zag motion. Read More

Why doesn't a diamond leave a streak on a streak plate?

Diamond will not leave a streak on a streak plate because diamond is harder than the unglazed porcelain streak plate. The streak is the color of the powdered mineral residue left on the streak plate surface when pulling a mineral across it. With a Mohs hardness of 10 (on a scale of 1-10) a streak could only be left on a diamond plated streak plate. On the Mohs scale of hardness, diamond is the hardest… Read More

Is streak a mineral?

no. streak is the powder left behind when you scratch a rock on a streak plate Read More

Why do a streak plate for an unknown bacteria?

A streak plate is used in the isolation of a bacterium from a sample. Once isolated using the streak plate, the bacterium may be identified through sequencing of its 16S gene or through various biochemical assays. So the streak plate is only used to get single colonies to identify the bacterium.. Read More

What are 2 minerals that don't leave a streak on a streak plate?

A streak plate has hardness of 7 on the Mohs scale, so harder minerals will not leave a streak. Diamond has a hardness of 10 and corundum is 9 - so neither will leave a streak. Read More

How could your streak plate technique improved?

Try holding the loop at a different angle or try getting a smaller amount (a small amount of bacteria will go along way). Read More

Can all minerals produce a streak on a porcelain plate why or why not?

Those minerals that are harder than the unglazed porcelain streak plate will scratch it rather than leave a streak. Read More

What is a streak plate?

A streak plate is a surface of unglazed ceramic, used to find the true color of a mineral specimen by drawing the specimen across it. The color of the resultant powder is referred to as the streak or streak color of a mineral. Read More

What is basalts streak?

A streak is the line of color left behind when a rock is rubbed against a streak plate. The streak of basalt is black. Read More Autocad civil 3d 2013 64 bit crack free download.

What is the hardness of a porcelain streak plate?

The hardness of a porcelain streak plate will vary between 6.5-7.5 on the Mohs hardness scale. Read More

If a mineral doesn't make a streak is it not a mineral?

Minerals with a hardness greater than around 7 on the Mohs hardness scale will not leave a streak on a standard unglazed porcelain streak plate. They will instead scratch and powder the streak plate. Read More

What is a scientific sentence for streak?

Streak is the color of powder of a mineral on a porcelain plate. Read More

Streak of conglomerate?

Conglomerate is a rock composed of other rocks. It has a pale grey streak when it is rubbed on a streak plate. Read More

Without using a streak plate how do you determine the streak of a mineral?

If you know what mineral it is you could look it up. If you don't have a streak plate available, you could crush some of the mineral with a hammer into a fine powder. What you'll be left with is the streak color. Read More

What is the streak of corundum?

Corundum has a white streak (colour of crushed mineral powder) but you'll not be able to use the streak test on a streak plate as corundum is much harder (mohs hardness of 9) than the plate (6 1/2). Read More

What is the process used to determine the streak of a mineral?

The streak of a mineral refers to the color left on a streak plate after rubbing a mineral across its surface. A streak plate can be as simple as the unglazed side of a porcelain tile. The streak is the mineral in a powdered form from abrasion with the hard, slightly textured surface of the unglazed porcelain streak plate. The streak color may differ from the color observed in a specimen. The streak is used… Read More

What color streak does a diamond leave?

A diamond will leave a colorless streak because the diamond is harder than the streak plate. Read More