If limulus ameboyte lysate turns into a gel when exposed to a sample, it means gramnegative bactera

Answers

Answer 1

Answer:

Gelation is the analytical signal used for the qualitative and quantitative detection of lipopolysaccharides. Bacterial endotoxins are lipopolysaccharides (LPS) located exclusively on the outer membrane of gram-negative bacteria; Their presence in injectable pharmaceutical products may be associated with problems during production, there are established endotoxin limits for this type of product. When the reagent is faced with solutions containing endotoxins, it produces gelling.

Explanation:

The LAL (Limulus Amebocyte Lysate) test is used to detect and quantify endotoxins associated with gram-negative bacteria. It is based on the amebocytes from the blood of the Limulus polifemus crab gel in the presence of minimal concentrations of endotoxin (ng / ml of blood ). It is positive in 60% of bacilli due to gram-negative enteric bacilli. The presence of endotoxins is determined by the formation of an insoluble gel or clot. The reaction requires the presence of divalent cations. The speed of the reaction depends on the endotoxin concentration, the pH and the temperature. The lysate contains a cascade enzyme system that is progressively activated in the presence of endotoxins. As a final result, the coagulable protein (coagulogen) is transformed into a gel (coagulin), which is the basis of the tube gel method.


Related Questions

What does autotroph mean?
A. They can feed themselves through photosynthesis.

B. They eat decaying things.

C. They eat other organisms.

Answers

Autotroph is A) they can feed themselves through photosynthesis

Answer:

A. They can feed themselves through photosynthesis.

Explanation:

I got it correct

Write a definition of weather do not "cut and paste."
I

Answers

Answer:

The weather is the state of atmosphere it refers to a day by day temperature.

I hope this might be the answer

why are spring floods common in rivers where the headwaters are in an area of cold, snowy winters?​

Answers

Answer:

The snow melts into water, causing floods. Coupled with the rainfall that is often associated with spring, water overflows.

Explanation:

If Two bushes each have woody stems. What other features
could you use to classify the bushes?

Answers

you could use leaves, height, width, flowers or fruit.


Hope this helps

Messages sent by the brain to the endocrine system pass
O A. from neurons to neuroendocrine cells via neurotransmitters
B. from neuroendocrine cells to neurons via hormones
C. from neuroendocrine cells to glands via action potentials
O D. from neurons to neuroendocrine cells via action potentials

Answers

Answer:

c. from neuroendocrine cells to gland via action potential

pituitary gland is a neuroendocrine gland which release hormones for the production of other glands

also called as master gland

Why do radio telescopes tend to produce blurry images? ASAP

Answers

Answer: When light passes through an opening it will dissfract. The smaller the opening, the blurrier the image will be

Explanation:

What is the complementary strand of DNA to: TAGCTT

Answers

Answer:

The complementary strand is ATCGAA

Compare and contrast the similarities and differences between the senses of taste and smell.

Answers

Answer:

Both use chemoreceptors and create the flavor whereas both have different organs and specialized cells.

Explanation:

The similarities between the senses of taste and smell is that both senses use chemoreceptors and both work to create the perception of flavor while on the other hand, the differences between the senses of taste and smell is that both have separate organs through which they perform their function. Foods are detected by taste buds, whereas specialized cells in the nose detect the odorants.

a ??? will take the shape of its container.

gas and liquid

gas

liquid and solid

solid

Answers

Answer:

Liquid and gas

Explanation:

Think of when you pour water into a glass, it will go inside and fill the container

Air in a glass will take the shape of the container

When you put a solid cube in a glass, it will remain a cube

liquid and gas do not have a constant shape, while a solid does

Answer:

Liquid and Gas

Explanation:

Gases always take the shape and volume of their container.

A solid will not take the shape of their container either, because it is already a shape.

For example an Ice Cube. It already has the shape of an Ice cube when you put it in your drink, It won't turn into the shape of the cup.

Hope this Helps!!

:)

If two stars are the same absolute brightness, why would one star appear more bright when seen from Earth?

Answers

Because one is farther away from the earth than the other

Which of these is the BEST way to assure a healthy animal stays healthy?
A) Enlist the help of an ethologist to observe its behavior
B) Breed it frequently
C) Proper nutrition
D) All of the above

Answers

The answer is D. Have a great day

what forces the magma beneath to move?​

Answers

Answer:

pressure

Explanation:

the earth's tectonic plates create pressure to make the magma rise

GIVING BRAINLIEST

If the growth rate is constant, how many jellyfish lived at the end of the pier 10 days ago?

Answers

Answer:

0

Explanation:

Since the constant is +10 every day (+15-5) 10 days ago the population would have been zero (100 - 10(15-5))

I’ll pay 20$ if you answer right now.

Questions: figure 3 shows plant cells from either the stem or the leaf.

a. Describe what part of the plant is represented in figure 3.
b. What is structure A?
c. What process occurs in structure A?

Answers

Answer:

a. that is a section of an embryo of a plant. it is part of the plant's leaf, not the stem

b. its the group of cells called chloroplasts.

c. the process that occurs in structure a is called photosynthesis

Explanation: fr

Why are wetlands important ?

Answers

Answer:

Far from being useless, disease-ridden places, wetlands provide values that no other ecosystem can. These include natural water quality improvement, flood protection, shoreline erosion control, opportunities for recreation and aesthetic appreciation and natural products for our use at no cost.

Explanation:

I hope that this helped you ;)

When looking at the 10-print card - what is the only type of print that you count? Question 3 options: Whorl Delta Loop Arches

Answers

Answer:

Whorls

Explanation:

I just finished the quiz and got the answer correct when I selected whorls.

will somone pleas answer this

Answers

Answer:

Main idea

Explanation:

Main idea should be the answer

Question 3
What is the job of the nucleus?
O lets some things in and out of the cell
O'protects the cell from intruders
stores the DNA

Answers

Answer:

The core controls and controls the exercises of the cell (e.g., development and digestion system) and carries the qualities, structures that contain the innate data.

Atomic pores, little channels that span the atomic envelope, let substances enter and exit the core. Each pore is lined by a set of proteins, called the atomic pore complex, that control what atoms can go in or out.

The core is spheroid in shape and isolated from the cytoplasm by a layer called the atomic envelope. The atomic envelope confines and ensures a cell's DNA from different atoms that seem incidentally harm its structure or meddled with its handling.

What causes day and night

Answers

earth rotaion so i need points

What chemical family is sodium in?
O a
alkali metals
b
alkali earth metals
C
transition metals
Od
halogens

Answers

Answer:

a) alkali metals

Explanation:

group 1 elements (except for hydrogen) are alkali metals

Answer:

alkali metals

Using your understanding of diffusion, how do you think oxygen from our lungs is transported to our red blood cells?​

Answers

Red blood cells (RBCs) are a type of blood cell whose role is to transport oxygen from the lungs to the peripheral tissues of the body. Oxygen diffuses from the alveoli of the lungs into the RBCs, where it binds to hemoglobin. One molecule of hemoglobin can bind four molecules of oxygen (O2).

What does Mufasa mean by the circle of life? Make a diagram that shows the circle of life. Represent it this way: sun –> producer –> primary consumer –> secondary consumer-> decomposer

PLEASE HELP

Answers

Answer:

Sun --> carrot --> rabbit --> wolf --> earthworm

Fill in the chart for the three different cities. Use the graph below to find how far
each city is from the epicenter

Answers

Okay so start of with 3 then

HELP! Label the image of the DNA with the correct name of the part!

Answers

Answer:

The top is Phosphate

The orange is Deoxyribose Sugar

The green is Adenine

The blue is Guanine

I dont know the red one sorry

Explanation:

"________" she said, collapsing with exhaustion. "I'm glad that's over with!"
a Hey!
b Oh, no!
c Phew!
d Wow!

Answers

Option C. Phew!

Have a great day! :)

PLEASE HELP ME ASAP!!!!!!!!!!!!!!!!!!

i gotta catch up on missing work and cant leave the kitchen table until i do, and my back hurts :(

Answers

Answer:

Wind Shear

Explanation:

Wind shear is a rapid change in wind velocity or direction.

Think of an object, person place at home that functions similar to the vacuole.

Answers

Annswer:

a egg

Explanation:

This is the answer because vacoules are like cells and eggs are like cells and yeah.

Sorry about the explanation I have to get points. But here are comparisons between the 3.

can someone pls help me ​

Answers

Answer:

Explanation:

a. Since both the parents are carriers, they have one allele that is the gene for the normal trait and one gene that is for the sickle cell trait. So the genotypes of the parents are Hh

b.   If we use a punnett square:

                    H            h

         H       HH           Hh

         h        Hh           hh

Genotypic ratio: 1 HH: 2Hh: 1hh

Phenotypic ratio:      1 normal blood cell: 2 sickle cell carriers: 1 sickle cell disease

Hello get 40 points for helppp !!!!!!

I need help for a project

I need 3 LARGEST CONCERNS to the current situation out environment in facing in relation to global warming. 3 and I will look them up I just need 3 HELPP PLEASEEEE

Answers

Answer:

climate change; water pollution (and ocean acidification); and loss of biodiversity.

Explanation:

my teacher took this answer I hope it helps!

During meiosis, homologous chromosomes exchange genetic material. This exchange of
genetic material -

Answers

Answer:

During meiosis, homologous chromosomes may exchange genetic material during a process called "crossing over."

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