Why do gram negative bacteria lose the primary stain during decolorization with ethanol?.

Answers

Answer 1

Answer:

Conversely, the the outer membrane of Gram negative bacteria is degraded and the thinner peptidoglycan layer of Gram negative cells is unable to retain the crystal violet-iodine complex and the color is lost. ... However, the decolorized Gram negative cells are stained red.


Related Questions

Which plant can survive in dry environments

Answers

Answer:

Many plants like Cactus

Which molecule is equipped with an anticodon and transports amino acids?.

Answers

tRNA is the correct answer

what does photosyntihies occur in

Answers

Answer:

Chloroplasts

Explanation:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in carbohydrate molecules, such as sugars and starches, which are synthesized from carbon dioxide and water.

A chloroplast is a type of membrane-bound organelle known as a plastid that conducts photosynthesis mostly in plant and algal cells.

it's takes place in chloroplasts

List FOUR factors that could affect the nutritional needs of a teenager

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Answer:

Age, physical activity, gender, and body weight

Explanation:

Describe how plants determine the name of a biome.

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Answer:

Biomes are described by their vegetation because plants that grow in an area determine the other organisms that can live there. Plants in a particular biome have characteristics, specialized structures, or adaptations that allow the plants to survive in that biome. These adaptations include size, shape, and color.

Persons who eat 18-30 grams of ________ are less likely to suffer from constipation, diverticulosis, heart disease, obesity, diabetes mellitus, and certain cancers, compared to those who eat minimal amounts.
A) fiber
B) sugar substitutes
C) carbohydrate substitutes
D) carbon nutrients

Answers

Answer:

A.) Fiber

Explanation:

Got from Quizlet...

Hope this Helps!

ii) Name one other thing that weight that affects how much energy you need each day.


Answers

Energy used throughout the day

Proteins are polymers formed of structural units called.

Answers

Proteins are made of hundreds and thousands of polymers called Amino Acid which are attached with each other in long chains. There are 20 different types of amino acids that make up a protein

Hydrophilic molecules are able to cross the membrane through phospholipids. integral carbohydrates. peripheral proteins. extracellular glycoproteins. transmembrane proteins.

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Answer: Most likely transmembrane proteins

Explanation: Facilitate access in and out of cell

Why was water used to dilute the substances instead of another chemical?

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Water is mostly water molecules so adding water to an acid or base reduces the concentration of ions in the solution. When an acidic solution is diluted with water the concentration of H + ions decreases and the pH of the solution increases towards 7.

Compared to unicellular algae, seaweeds _____.

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Answer:

Compared to unicellular algae, seaweeds are eukaryotic

Explanation:

Why would a website for a for-profit organization most likely be an unreliable source for healthcare product information?

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Answer:

The website, which is for-profit, is most likely trying to sell something or earn money from advertising a product. So if the product they were trying to sell was  a healthcare product, they would try to make it sound like it is the best thing you may ever purchase. The website may earn money off of the purchase.

please help!! thank you

Answers

Answer:

B

Explanation:

B is the only answer that can be proven from the data in the chart, the rest are speculation and not scientific answers.

Which of the specialty areas do you think you would most like to work in? Why?​

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Answer:

Well i believe it depends on the person you are because then what ever specialty you enter you reward full and enjoyable e.g

If your a caring or find happiness in helping others then you can enter specialties around it and not be disappointed in tour choices

Also I would like to add if you do regret your choice then you can switch careers if you really think that work suits you more. I have a friend who used to be an head engineer for a car dealer ship but ended up switching careers at 37 years old. So don't think that you entering a certain specialty mean you can never switch careers.

I whole heartedly wish you the best in what job you enter.

In the field of forensic science, the specialty area I would likely prefer to work in is forensic DNA analysis. This area offers a compelling blend of cutting-edge technology and critical investigative contribution.

The vital significance that forensic DNA analysis plays in contemporary criminal investigations makes it an intriguing specialization. It makes use of cutting-edge methods to enable the identification of individuals based on their distinctive DNA profiles. Its accuracy and capacity to definitively link or rule out suspects from crime scenes are what make this field significant.

Forensic DNA analyzers work with law enforcement to help them solve crimes while maintaining the rules of justice by analyzing genetic evidence. Forensic scientists would make an interesting and significant choice if they worked in this specialized field because it provides for a dynamic confluence of science and judicial proceedings.

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The given question is incomplete, complete question is- "As a forensic scientist, which of the specialty areas do you think would most like to work in? Why?​"

Numbness in the limbs, visual disturbances, muscle weakness, and urinary problems can all be symptoms of ____

Answers

Answer:

Aside from numbness, weakness, restless leg syndrome and fatigue there are numerous symptoms associated with multiple sclerosis – some more common than others. Common symptoms of MS Walking difficulties – weakness, spasticity, loss of balance, sensory deficits and fatigue can all be contributing factors

Explanation:

where dose the extra electron in a negatively charged atom come from? pls help

Answers

Answer:

A negatively charged atom is called an anion. This just means it has gained electrons (negative charges) and the atom has become negative instead of neutral since number of protons = number of electrons. Now it has 1 or more extra electrons, it is more negative than positive or neutral.

Two DIFFERENT seeds are planted in the same amount of soil, light, same type of pot, and receive the same amount of water. This experiment is probably testing the impact of ...


plants genetics

plants environment
Please help, thank you, god bless you all

Answers

Answer: plants genetics :)

Explanation:

The environment is the same in this case and since it is two different plants then it must be plant genetics

Suppose you have had kidney stones, and you want to see the outside of a kidney stone, in three dimensions, to see why it causes so much pain leaving the body. What microscope would be best suited to this purpose

Answers

A scanning electron microscope (SEM) would be the best option for viewing a kidney stone's exterior in three dimensions.

Thus,  SEMs use a focussed electron beam to scan the specimen in order to provide finely detailed three-dimensional images of the specimen's surface.

This enables high-resolution imaging of the kidney stone's exterior features, revealing details on its composition, structure, and surface characteristics.

For examining the microstructure of materials and biological samples, SEMs are extensively employed in a wide range of scientific and medical applications.

Thus, A scanning electron microscope (SEM) would be the best option for viewing a kidney stone's exterior in three dimensions.

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In Mendel's cross for stem height, what contrasting traits did the pea plants in the P generation exhibit?

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Answer:

tall and dwarf pea plants

The ______ is a series of flattened sacs that sorts and packages materials into vesicles to be sent to the cell membrane. Multiple choice question.

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Answer: Golgi body/Golgi Apparatus

Explanation: Golgi body is responsible for packaging and shipping fats and proteins for export around the cell, or outside of the cell.

The diagram below shows a cell going through a certain phase of mitosis.
Which of the following best describes what happens during the phase of mitosis shown in the diagram?
Choose 1 answer:

Answers

Answer:

(Option A) Nuclear membranes begin to form around the cell’s genetic material.

Explanation:

In the given image, it can be predicted that the nuclear envelop reappears around the cell's genetic material. The correct option is A.

What is mitosis?

Mitosis is the process whereby a cell replicates and then separates its chromosomes, creates two identical nuclei in prep work for cell division.

Mitosis is commonly accompanied by the equal division of the cell's contents into two daughter cells with identical genomes.

Mitosis occurs in the following stages:

The chromosomes shorten and thicken during prophase. Metaphase - Chromosomes align in the center of the cell. Chromatids separate at the centromere and move to opposite poles during anaphase. Telophase - The formation of two nuclei after nuclear envelopes reform around each chromosome group.

The image is showing telophase of the cell division mitosis, which is indicating that the nuclear envelop is being formed around the genetic material of the cell.

Thus, the correct option is A.

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Nutrient cycles can all be classified as
A. Abiotic Factors
B. Biotic Factors
C. Unnatural
D. Causal Factors

Answers

Oh yes biology biologically I am in a Spinx cat because a Spinx cat is Nikki and I am a chicken nugget I’m a chicken nugget chicken nuggets and potato chips and now I kind of feel like I’m going to die so I’m really sorry really sorry I couldn’t answer your question also hi I’m going to turn you into a snowman and a huge one a big big snowman with he’s going to be yellow so people think he’s made out of lemonade or other bodily fluids OK OK also I jumped off of a high jump off of a 3,000,000 feet building and also I survived so that’s really cool

The plasma membrane A. controls movement of substances in and out of the cytosol B. has both lipid and protein molecules C. is impermeable D. A and B are correct answers E. all of the above are correct answers

Answers

Answer:

I believe it is E. All of the above

Explanation:

Place the nucleotides in the correct order to create a strand of mRNA.
TAC GAC TGG ATC
UAG CUG ACC AUG

Answers

Answer:

UTC CTG UCC TUG

TTC GTC TGG TTC

AUG CUG ACC UAG AUC GAC UGG UAC

Cellular respiration is the process that allows living organisms to extract energy from nutrients. What is the main difference between aerobic and anaerobic respiration?.

Answers

Answer:

Cellular respiration that proceeds in the absence of oxygen is anaerobic respiration. Cellular respiration that proceeds in the presence of oxygen is aerobic respiration.

In 3 to 5 sentences, explain how ears detect sound and how eyes detect light

Answers

The eardrum vibrates from incoming sound waves

How many copies of dna are required to see bands on the electrophoresis gel.

Answers

10 ng is the minimum amount of DNA to visualize it on agarose gel. The amount of DNA to load per well is variable. The least amount of DNA that can be detected with ethidum bromide is 10 ng.

What is a sugar that cannot be extracted from plants.

Answers

Answer:

Lactose

Explanation:

Lactose is the only sugar that cannot be extracted from plants. It can only be found in milk, including human breast milk, and in some dairy products.


Which location is most likely to be a source
of fossils?
A Exposed mountaintop
B Desert
C Sedimentary rock layers
D Volcanic lava

Answers

C. Sedimentary rock layers

Explanation:

This is because they are already in locations where sediment is likely to bury them and shelter them from scavengers and decay.

What happens when a plant is losing too much water through transpiration? Question 12 options: Stomata open Stomata close Guard cells swell Respiration increases.

Answers

Answer:

Stomata close

Explanation:

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