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iris [78.8K]
3 years ago
9

If LAL (limulus amebocyte lysate) turns into a gel when exposed to a sample, it

Biology
1 answer:
Vlad1618 [11]3 years ago
6 0

Answer: The statement is TRUE.

Explanation:

Gram negative bacteria is a type of bacteria that possesses, from the interior to the exterior, a cytoplasmic membrane, a thin peptidoglycan layer, and an outer membrane containing lipopolysaccharide. The lipid portion of the lipopolysaccharide complex of the outer layer acts as an ENDOTOXIN.

The endotoxin of the gram negative bacteria can be detected in research or biomedical laboratories through a technique called LIMULUS AMEBOCYTE LYSATE test.

The test procedure follows a principle that the endotoxin of these gram negative bacteria are capable of forming gel clots (coagulation) of blood cell (amoebocytes) lysates of the Limulus polyphemus crab.

Therefore, If LAL (limulus amebocyte lysate) turns into a gel when exposed to a sample, it

means the sample is contaminated with endotoxins of gram-negative bacteria.

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position vs time for two cars which statements best describe the motion of car a and car b check all that apply
jekas [21]

Answer:

Option 1, 2, 5

Explanation:

Options for the question

  1. car a and car b are both moving toward the origin.
  2. car a and car b are moving in opposite directions.
  3. car a is moving faster than car b.
  4. car a and car b started at the same location.
  5. car a and car b pass each other at the crossover  point on the graph.  time (s)

Solution -

The motion of any object is represented by  position-time In such graphs the position of an object is fixed for any starting point on the y-axis and time on the x-axis.

The slope of such curves determine the velocity of the object at all its position within the graph. The steeper the slope is, the faster the the object is moving.

Hence, the following statements are correct

Option 1, 2, 5

3 0
3 years ago
If a drug is classified as being cytostatic the action of the drug would be
hichkok12 [17]
To inhibit cell division, such as those meant to treat cancer. 
3 0
4 years ago
Arrange the symbols to form a DNA molecule.
Julli [10]

The right answers are mentioned in the picture.

A base pair (bp) is the pairing of two nucleobases located on two complementary strands of DNA or RNA. This pairing is carried out by hydrogen bridges. There are four types of nucleic bases: A-T-C-G, these letters for Adenine, Thymine, Cytosine, and Guanine. A with T and C with G.

It is also necessary to take into account the antiparallel character of the DNA strands. If a strand is in the 5 '3' direction, its complete strand is in the 3 '5' direction.

5 0
3 years ago
Which characteristic do vertebrates have that invertebrates lack?
yarga [219]

Answer:

B. Backbone

I hope this helps!

7 0
3 years ago
Read 2 more answers
Give Jeason: si System is accepted by all nations in the world.<br>​
zubka84 [21]

it's very practical, because it's on base 10, so conversion between stuff like meters to kilometer is always just a multiplication with 10 to some power

like 1 km = 1000m (10³m)

or 1 m = 10^-3km = 0.001km

same reason for other SI units.

except time, that's base 60, or 12, or 24. that's more complicated, but there isn't any real competition

8 0
3 years ago
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