Organic Analysis Discussion

Your day in the Forensic Lab had been fairly routine. Around 1:00pm, an investigator drops off some items of evidence to be analyzed from the scene of a homicide. One is a brown gummy substance found at the crime scene, another is an ink pen and note with writing, and the final is an unknown white powder. With each question, your substantial post should have at minimum 5 to 6 sentences for each question and for each of the different pieces of evidence.

For each item of evidence discuss the following:
1) Which analytical method/equipment would you use?
2) Why would you use this particular method for that piece of evidence?
3) How does that method/equipment work? Give details about how the method works.

PLEASE HELP ME

Answers

Answer 1

Answer:

1) The brown gummy would be going through a Food & Beverage. The ink pen and note would be going through Chromatography. The white powder would be going through Qualitative analysis. 

2) The gummy would be tested for food safety, nutrition, and quality. The ink pen would be tested for separating a mixture of chemical substances into its individual components. The white powder would be tested for a reaction.

3) The method would work for the brown gummy to see why it's brown, how long has it been sitting out, and is there any connection to the case. The method would work for the ink pen and note so it can be thoroughly analyzed to see if it was written in a distressing or frightening matter. The method for white powder would work to determine if it's narcotics or just baking powder. 

Explanation:


Related Questions

explain why the release of pcbs into an aquatic ecosystem may have longer lasting negative impacts on organisms than the realase of synthetic nitrates

Answers

Why Pcb have lasting effect than nitrate in the aquatic habitat.

PCB bind to soil and other particles in the water but only small amounts will dissolve in water. Small concentrations of PCBs can also evaporate and be carried long distances in the air. PCB stay longer in the soil and sediments more than nitrate.

When PCB is inside the ocean or aquatic environment,the fish or water organisms will absorb it from the water and sediments in their habitat. Too much accumulation of it can lead to their death and when such aquatic organisms are consumed, it will prone bad health to humans and even foetus. Over accumulation of PCB will affect the heat of individual.

What is PCB?

PCB or polychlorinated biphenyls refer to highly toxic and concentrated industrial substances. They pose serious health challenges to fetuses, babies and children and this can lead to developmental and neurological problems from continuous exposure to PCB

Learn more about PCB from the link below.

https://brainly.com/question/501768

how does blood change as it passes through the capillaries around your small intestine?

Answers

Digested nutrients are absorbed into the bloodstream through capillaries in the villi that line the small intestine.

If you are given the chance to be part of an authority, how will you address disorders in the society like terrorism?​

Answers

Keep a look out for suspicious situations, such as an unattended luggage or someone with a visibly high degree of interest in a building's security, to assist lower the risk of a terrorist strike.

In public places, be cautious.

In places where there are a lot of people, such as metro and railway stations, festivals and performance sites, and retail malls, be especially cautious.

In every building you visit, double-check the placement of the emergency exits.

Don't forget to keep an eye on your valuables.

The context plays a big role in determining whether or not a scenario appears suspicious. An abandoned luggage on a train platform, for example, does not always indicate something terrible. Still, the best course of action is to immediately alert a member of staff. Alternatively, you can contact the authorities.

Jaden’s mass is 50 kilograms. His weight on Earth is

Answers

10n= 1kg on earth !!!!!!!!

In addition to destabilizing glucose for subsequent breakdown, what else does phosphorylation of glucose do

Answers

Phosphorylation of glucose adopt the pentose phosphate pathway.

What Phosphorylation of glucose do?

The phosphorylation of glucose maintains the downhill gradient for metabolism of glucose and extramitochondrial glucose flux through the use of pentose phosphate pathway. Induction of the pentose phosphate pathway and the generation of NADPH may also contribute to protection against death of cells.

Learn more about glucose here: https://brainly.com/question/397060

If Evie wants to move her arm, she needs her _____ muscle to bend the elbow and the _____ muscle to straighten it.

Answers

Answer:

flexor and Triceps

Explanation:

The flexor is the muscle to bend your arm and the triceps to straighten your arm.

If a sperm cell contains 8 chromosomes, it comes from an animal that has ______ chromosomes.

Answers

Answer:

If a sperm cell contains 8 chromosomes, it comes from an animal that has 16  chromosomes.

what effect did Darwin's travels to the Galapagos islands have on the development of his theory of natural selection?

Answers

Answer:

During his visit to the islands, Darwin noted that the unique creatures were similar from island to island, but perfectly adapted to their environments which led him to ponder the origin of the islands' inhabitants. Among those that struck Darwin so greatly were the finches that are now named in his honor.

The diagram shows the displayed formula of a substance. How many different elements are there in this substance?

Answers

There are only three elements in the above structural formula above:

Carbon

Hydrogen and

Oxygen

The name of the compound Butan 2 ol. There are different elements such as carbon, hydrogen, and oxygen. Carbon, hydrogen, and oxygen will form hydrocarbons.

What are hydrocarbons?

Hydrocarbons are group of compound formed with a  carbon, hydrogen and oxygen. There are different hydrocarbons such as ethanol, propanol and butanol.

Hydrocarbons are formed by carbon, hydrogen and oxygen. They have some specific functional groups as alcohol, ketone and aldehyde group.

An organic chemical molecule that only contains hydrogen and carbon atoms is referred to as a hydrocarbon. Natural hydrocarbons are the building blocks of coal, natural gas, crude oil, and other significant energy sources.

Therefore, The name of the compound Butan 2 ol. There are different elements such as carbon, hydrogen, and oxygen. Carbon, hydrogen, and oxygen will form hydrocarbons.

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Which of the following is not a form of energy?
A) wind
B) light
C) chemical
D) electric

Answers

Answer:

A) wind

Explanation:

The forms of energy include light, chemical , and electricity. Wind is basically air which is not a form of energy, but it is a matter.

Some fish in a murky underground lake have lighter scales than the others. This makes it slightly harder for the lighter fish to escape detection
by predators but most light-colored fish live long enough to reproduce. A natural event separates the dark-scaled fish from their light
scaled cousins, and as a result a new species of dark-scaled fish emerges
Which statement accurately describes the scenario?

Answers

According to the given situation, the fish experienced an evolutionary change because of genetic drift.

What is genetic drift?

Genetic drift is the change in the frequency of a present gene variant or allele in a population due to random chance.

Genetic drift may cause gene variants to disappear completely and thereby reducing genetic variation and also causing rare alleles to become much more frequent and evenly fixed.

Thus, the fish experienced an evolutionary change because of genetic drift.

To learn more about genetic drift click here:

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Answer:

(Q1) An animal is born with a shorter tail. This makes no difference to its ability to survive or reproduce, but as a result of pure luck, the animal survives, reproduces, and passes its shorter tail down to its offspring. Over time, the species develops a shorter tail.

(Answer) genetic drift

(Q2) The process of altering the genome of one species by adding genes from another species in order to gain a beneficial trait is known as

(Answer) genetic modification.

(Q3) Some fish in a murky underground lake have lighter scales than the others. This makes it slightly harder for the lighter fish to escape detection by predators, but most light-colored fish live long enough to reproduce. A natural event separates the dark-scaled fish from their light-scaled cousins, and as a result, a new species of dark-scaled fish emerges.

(Answer) The fish experienced an evolutionary change because of genetic drift.

(Q4) Which scenario accurately describes an example of artificial selection?

(Answer) A farmer intentionally breeds oranges to be more resistant to aphids.

(Q5) Over many generations, there is a good chance that an advantageous gene will be shared by every organism of the same species or that a new species will emerge. These long-term outcomes are called

(Answer) evolution.

Explanation:

these are the correct answers for the 2022 school year. hope this helps UwU

Your lab partner tells you the bacteria are moving in his Gram-stained smear. You can conclude that __________.

Answers

Answer:

your lab partner tells you the bacteria are moving in his Graham staines way you can conclude that smear

In eukaryotic cells, aerobic respiration occurs in organelles called

Answers

Answer:

the mitochondria

Explanation:

Through aerobic respiration (respiration requiring oxygen), the mitochondria breaks down glucose, with the use of oxygen, to produce ATP energy. Unlike anaerobic respiration, which occurs in the cytoplasm and produces less ATP energy, aerobic respiration occurs in the mitochondria and produces more ATP energy.            

A particular habitat has experienced many changes in environmental conditions over the last 75 years. Which is MOST likely a characteristic of a species that has the best chance to survive these environmental changes?

Answers

Answer:

I'd say C- a wide range of locations in which the species thrives. sorry if it's wrong

Question 3 (1 point)
RNA is a double stranded molecule made of nitrogen bases Adenine (A), Thymine (T),
Cytosine (C) & Guanine (G).
True
False

Answers

Answer:

False

Explanation:

Adenine, Cytosine, uracil and guanine

what does ethical mean?

Answers

Answer:

relating to moral principles or the branch of knowledge dealing with these.

Explanation:

Relating to moral principles with a branch of knowledge

how does a jelly fish eat

Answers

Answer:

First, the tentacles will catch the food. The jellyfish has long tentacles which are used to capture the food

Explanation:

.)

inside their bell shaped body there is a opening called mouth . they eat and discard waste from there .

Can someone please help me? :(

Answers

Answer:

A. Thunderstorms

Explanation:

Pretty sure it's thunderstorms, but I'm also thinking it might be C. Clouds with light rain but it's normally patchy rain or showers

1) Both plants are producers and use photosynthesis to make food. There are differences between the two plants even though they carry out the same processes. What is one way the desert plant differs from the rainforest plant?

A) The roots are bigger to collect water.
B) The desert plant does not make flowers.
C) The desert plant is much smaller in size.
D) The leaves are smaller to reduce water loss.

Answers

The answer is B hope this helps

hello humans ~
Vaccines are made up of:

Chemicals
Weak microorganisms
Viruses
Drugs​

Answers

Answer:

Viruses

Explanation:

Some vaccines are made of weak viruses or even dead ones :)

Have an amazing day!!

PLEASE RATE AND MARK BRAINLIEST!!

Answer:

Viruses

Explanation:

Cuz vaccines are made up of weak and dead viruses.

Adipose tissue is made up of cells that have areas for long-term energy storage. An analysis of the structure of the molecules within the cells of adipose tissue show that there are glycerol and fatty acids combining to form the majority of molecules within the cell. The most likely macromolecule type found within the adipose tissue would be which molecule?

A) lipid
B) protein
C) nucleic acid
D) carbohydrates

Answers

Answer:

lipid

Explanation:

lipids are formed by combination of fatty acid and glycerol

Hi, what are the signs of obesity??

give 4 of them, ty

Answers

High blood pressure (hypertension) or heart disease from the heart working hard to pump blood throughout the body

High cholesterol levels (fatty deposits that can block arteries), can lead to stroke, heart attack, and other complications8

Stroke from high cholesterol levels and high blood pressure

Type 2 diabetes (nearly 50% of type 2 diabetes cases are directly linked to obesity)

Answer:

Common symptoms of obesity:

-Excess body fat, particularly around the waist.

-Shortness of breath3.

-Sweating more than usual.

-Snoring.

-Trouble sleeping.

-Skin problems from moisture accumulating in the folds of skin.

-Inability to perform simple physical tasks that one could easily perform before weight gain.

Sugar is consumed by animals, which perform

Answers

The glucose molecule's principal function is to provide energy; it is a fuel. Glucose is a soluble, widely distributed kind of chemical energy that may be 'burned' in the cytoplasm and mitochondria to produce carbon dioxide, water, and energy.

What is mRNA?

A. Creates proteins on the ribosome

B. Transfers amino acids to the ribosome during protein synthesis

C. Carries copies of instructions to make proteins from the DNA to the rest of the cell

D. Carries amino acids to the growing polypeptide chain on the ribosome

Answers

Transfers amino acids to the ribosome during protein synthesis

who proposed the polynucleic model, stating that DNA and RNA were composed of nucleotides.

Answers

Answer : Levene

That is the answer and if it is wrong, let me know because i know that it’s right

Answer to 19 ………………..

Answers

Answer:

C.) Eukaryotic Plant Cell

Explanation:

A.) is incorrect because eukaryotic animal cells do not contain chloroplasts or a cellulose membrane wall.

B.) is incorrect because prokaryotic plant cells do not exist. Plants are always eukaryotes. However, there are some types of prokaryotic algae that undergo photosynthesis like plants.

C.) is correct because eukaryotic plant cells contain all of the listed properties.

D.) is incorrect because prokaryotic animal cells do not exist. Animals are always eukaryotes.

Which part of fried shrimp provides the most energy in the form of glucose to help power cellular respiration

Answers

Answer:The breading on the shrimp

Explanation:

A part of fried shrimp that provides the most energy in the form of glucose to help power cellular respiration is known as the breading on the shrimp.

What is Cellular respiration?

Cellular respiration may be defined as a biological process that significantly leads to the production of energy in the form of ATP by the disintegration of glucose which we get from food molecules and oxygen.

The reactants of cellular respiration are oxygen and glucose while the products are carbon dioxide, water, and energy in the form of ATP.

The part of food products that power the process of cellular respiration must be highly rich in glucose in order to deliver as much as energy can possible.

So, the breading on the shrimp provides the most energy in the form of glucose to help power cellular respiration.

Therefore, the breading on the shrimp is a part of fried shrimp that provides the most energy in the form of glucose.

To learn more about Cellular respiration, refer to the link:

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The thylakoids of chloroplasts are the location of several important steps of photosynthesis. Suppose you put chloroplasts in the dark, and then artificially lowered the pH of the interior (lumen) of each thylakoid. What does lowering the pH do to the lumen of the thylakoid

Answers

The answer is A I think

What does this have to do with the real world?

Answers

You are in the real world and just typing this on brainly

What is the process in which an organism makes a new organism?
Question 4 options:
Overlapping
Relationship
Reproduction
Overproduction

Answers

Answer:

reproduction

Explanation:

K-12! :)

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