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Why is the citrate test carried out on an agar slope rather than a broth?
Wiki User
∙ 14y ago
Background:
Simmons' Citrate Agar is a defined, selective medium that tests for an organism's ability to use citrate as a sole carbon source and ammonium ions as the sole nitrogen source.
The medium contains citrate, ammonium ions, and other inorganic ions needed for growth.
It also contains bromothymol blue, a pH indicator. Bromothymol blue is green at pH below 6.9, and then turns blue at a pH of 7.6 or greater.
SO:
Sometimes, it is possible to detect growth on the citrate slant without the accompanying color change to blue. This is most likely due to insufficient incubation. Either a combination of blue color and growth or growth alone without the blue color should be scored as a positive for the citrate use test.
Wiki User
∙ 14y ago
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What direction is the force of friction compared to the surface of a slope?
Parallel to the surface of the slope and opposite to the movement of an object on the slope. Parallel to the surface of the slope and up-slope, in the case of an object resting in place on the slope.
What is the hardest ski slope?
The hardest ski slope depends on where you live in the world. In Europe it is the black slope and in North America it is the double black slope.
What kind of slope do a closely spaced contour lines indicate?
Closely spaced contour lines mean that the slope is steep.
How does the slope of an area affect its runoff?
It really depends on the slope. If it is a steep slope, the runoff will flow downhill faster and collect more at the bottom. If it is a pretty level slope, the runoff won't collect at the bottom of it. The water will just flood the top of the slope.
What is a uniform slope?
A Uniform slope is a slope with evenly spaced contours, it can be for hills of any gradient, weather it is steep or gradual, but they have to be evenly spaced
Why do aloes prefer to grow on a north facing slope rather than the south facing slope?
Why do aloes prefer to grow on a north facing slope rather than on a South facing slope
Which is steeper a slope of-3 or a slope of 2?
-3, but going downwards rather than upwards.
What is the slope of a line in degree measure rather than a fraction?
It is simply the arctan transformation of the fraction.
When gravity causes huge amounts of rock or soil to be carried down a slope this form of erosion is referred to as a what?
Mass wasting / landslide.
What Is An Island Slope?
An island slope is analogous to a continental slope, but it is attached to an oceanic island (volcano) rather than attached to a continent. In simple terms, it is that portion of the sea floor that slopes from an island's shallows down to the deep ocean floor.
When gravity causes huge amount of rock or soil to be carried down a slope this is referred to as a?
Rock slide / land slide / mass wasting.
What are slope lines?
They are lines that are not horizontal nor vertical.
How the slope of lands affect the amount of soil being carried away?
The amount of soil erosion depends on length of the time quantity of land mass natural factors like wind temperature water and the hight difference of surround material. Slope is a major factor to affect this process more slope means much easier to drift the soil
Why does slope always equal M?
No one knows for sure, but this is an assortment of ideas I have heard. One idea is that the first letter for the Greek word for slope is m, but no one knows if there is any correlation between the two. Another idea is that the French word for slope (monter) starts with a m, but it is not proven that there is a relationship (again). Another idea is that the old word for slope was modulus of slope (modulus being used in the sense of "number used to measure"), and the m was carried over. Yet another idea I have heard is there is no real reason.
How does changing the slope of the stream table produce different results?
Changing the slope of the stream table affects the speed and direction of water flow. A steeper slope creates faster water flow, which can result in more erosion and deposition. Conversely, a flatter slope slows down water flow, leading to less erosion and deposition. These changes in flow dynamics can cause differences in the shape and size of channels, as well as the amount and distribution of sediment carried by the water.
What are the Factors that Affect the Amount of soil that being Carried away?
by the slope of land " " strength and volume of running water " " presence of cover crops " " dryness and size of soil particles
Does the slope of a position time graph represent average velocity or rate of change of velocity?
The tangent at a point on the position-time graph represents the instantaneous velocity. 1. The tangent is the instantaneous slope. 2. Rather than "average" velocity, the slope gives you "instantaneous" velocity. The average of the instantaneous gives you average velocity.
