What should happen when iki solution contacts something that does not contain starch?

Answers

Answer 1
IKI stands for Iodine-potassium iodide, it is a chemical that is used in the laboratory to test for starch. When IKI comes in contact with starch solution, it will turn to dark purple colour in the presence of starch. When starch is absent in a substance, the addition of IKI to that substance will not produce any change in colour.

Related Questions

a person has a disorder that inhibits the production of thymosin. Which of the following would be a likely result ?

Answers

The answer is most likely A.) A weakened immune system.

A natural immune-modulating peptide called thymosin Alpha 1 aids in both acute and chronic conditions. Disease, allergies, rheumatoid arthritis, infections, inflammation, and a preventative immune system boost are all treated with it. Thus, option A is correct.

What are the inhibits the production of thymosin results?

The thymosin hormone promotes the growth of T lymphocytes. White blood cells called lymphocytes travel through the thymus during your youth, where they are converted into T cells.

A hormone called thymosin is released by the thymus. Its main job is to promote the development of T cells, which are vital for the immune system. Additionally, thymosin helps B cells transform into plasma cells, which make antibodies.

A 5-Da polypeptide hormone called thymosin is released by the thymus gland. Thymosin-1 promotes the maturation of T lymphocytes in the thymus from precursor T cells.

Therefore, a person has a disorder that inhibits the production of thymosin results in weakened immune system.

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____ many glands, such as sweat glands and salivary glands, are composed of this tissue

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Stratified cuboidal epithelium is the tissue that composed many glands. This includes sweat glands, salivary glands, mammary glands, and pancreas. This also forms the lining of ovarian follicles and seminiferous tubles being developed in the male and female reproductive system, respectively.

________ is stress-reduction technique whereby electronic equipment measuring a person’s involuntary (neuromuscular and autonomic) activity helps him gain a level of voluntary control over these processes.

Answers

Biofeedback is stress-reduction technique whereby electronic equipment measuring a person’s involuntary (neuromuscular and autonomic) activity helps him gain a level of voluntary control over these processes.

Biofeedback therapy will help you to relax and control involuntary response related to stress like heart rate, sweating, temperature and blood pressure. The electronic equipment will let you know when there is any sign of stress, therefore you know when to calm down yourself.

What would happen over the following fifty years if a fire burned off all of the vegetation in the area

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People would have to plant more, people could die, animals could die.

Which carbohydrate can be used by the body as an immediate source of energy?

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Your body can store some fuels in a form that offers muscles in a immediate source of energy.  Carbohydrates such as sugar are readily broken down in glucose, the part of your bodies principal energy source.


Hoped this helpes! =)

Answer:glucose

Explanation:

___ is the oldest possible age that members of a species can attain, whereas ______ is the average number of years the average newborn in a particular population is likely to live.

Answers

MAXIMUM LIFE EXPECTANCY is the oldest possible age that members of a specie can attain, whereas AVERAGE LIFE EXPECTANCY is the average number of years the average new born in a particular population is likely to have. The maximum life expectancy for humans is 122 years. The average life expectancy of female is greater than that of male, in USA, the average life expectancy for female is 81 while for male is 76.

What allows a dna probe to find a single-stranded target gene?

Answers

complementary base pairing

Complementary base pairing allows a DNA probe to find a single-stranded target gene.

What do you mean by DNA probe?

A probe is a single-stranded sequence of DNA or RNA used to search for its complementary sequence in a sample genome. The probe is placed into contact with the sample under conditions that allow the probe sequence to hybridize with its complementary sequence.

Gene probes can be produced in several ways and fall broadly into three types: gene-specific probes, oligonucleotide probes and polymorphic probes.

DNA probes are important tools in diagnostics to ensure high specificity and sensitivity. They are used in molecular biology methods like PCR, qPCR and hybridization techniques for an accurate detection of pathogens.

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A list of the cell fibers from largest to smallest would read: 1. microtubules, intermediate filaments, microfilaments

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Final answer:

Cell fibers can be listed from largest to smallest as microtubules, intermediate filaments, and microfilaments. Microtubules handle organelle movement and cell division, while intermediate filaments provide structural support, and microfilaments enable cell shape and movement.

Explanation:Understanding Cell Fibers: Microtubules, Intermediate Filaments, and Microfilaments

Cell fibers play a critical role in maintaining the structure and function of cells. If we list these fibers from largest to smallest, we get: microtubules, intermediate filaments, and microfilaments. Microtubules are hollow tubes essential for guiding organelle movement and chromosome separation during cell division. Intermediate filaments, which include proteins like keratin, provide tensile strength and support cellular structure. Microfilaments are the thinnest fibers and they contribute to cell movement and shape maintenance.

________ is a general term for pain and stiffness that affects the skeletal or muscular system.

Answers

Rheumatism is a general term for pain and stiffness that affects the skeletal or muscular system.

Your professor wants you to construct a phylogenetic tree of orchids. she gives you tissue from seven orchid species and one lily. what is the most likely reason she gave you the lily?

Answers

If your professor desires you to make a phylogenetic tree of orchids and she provides you tissue from seven orchid species and one lily, then the most likely reason why she gave you the lily is for it to serve as an outgroup.

To add, in cladistics or phylogenetics, an outgroup is a group of organisms that serve as a reference group when determining the evolutionary relationship among three or more monophyletic groups of organisms. The set of organisms under study that precisely allows the phylogeny to be rooted is called the outgroup and it is used a comparison point for the ingroup.

Including a lily when constructing an orchid phylogenetic tree helps provide a point of comparison, clarifying evolutionary relationships.

When constructing a phylogenetic tree of orchids, including a lily as an outgroup is a common practice.

An outgroup, in this context, is a species or group known to have diverged earlier than the species being studied. The purpose of including the lily is to provide a point of comparison that helps determine the evolutionary relationships and character states among the orchid species, as lilies share a more distant common ancestor with orchids than the orchids do among themselves.The primary goal is to identify unique and shared characteristics that can clarify the lineage and evolutionary paths of the species being investigated. For example, lilies, being monocots like orchids, have similar but distinct features that make them a suitable reference point.Lilies serve as an outgroup, sharing a more distant common ancestor with orchids. This comparison aids in identifying unique and shared features among the studied orchid species.

Some cancers have a genetic component to them; if a parent has a certain type of cancer the children are more likely than the average population to develop the same cancer. why might this be

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This is very likely to happen, but me myself was dignosed with cancer and niether of my parents have any type of cancer. They're both very healthy.

The earliest organisms were most likely _____.

Answers

Bacteria or fungi were the first organisms know to mankind till This day
Final answer:

The earliest organisms on Earth were likely simple, unicellular prokaryotes, similar to today's bacteria and archaea. They probably derived energy via chemosynthesis due to the dense early atmosphere blocking sunlight. Evidence is found in microfossils and stromatolites, indicating life emerged as far back as 3.5 to 3.8 billion years ago.

Explanation:

The earliest organisms on Earth were most likely prokaryotic, which is to say they were simple, unicellular organisms that lack a cell nucleus. Examples include bacteria and archaea. These early life forms are most likely to have relied on chemosynthesis for energy, given that the Sun's rays were not yet capable of reaching the Earth's surface due to the planet's dense early atmosphere.

Our current understanding of these early organisms comes from the study of microfossils and stromatolites. Microfossils are the fossilized remains of microscopic organisms, while stromatolites are sedimentary structures created by microbial life. From these, it is clear that life emerged on Earth as far back as 3.5 to 3.8 billion years ago, which is relatively soon after the planet cooled enough to support life.

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The outer layers of the brain are referred to as _____.

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The cortex. Hope this helps!!

When a protein is denatured, why does it lose its functionality?

Answers

Final answer:

Proteins lose their functionality when they undergo denaturation, a process in which they lose their shape. Denaturation can be reversible or irreversible, depending on the specific conditions. An example of irreversible denaturation is when an egg is fried or boiled, causing the albumin protein to denature and lose its clear appearance.

Explanation:

Denaturation is the process in which a protein loses its shape and, as a result, its functionality. This can occur due to changes in temperature, pH, or exposure to certain chemicals. Denaturation can be reversible if the protein's primary structure is preserved, allowing it to resume its function after the denaturing agent is removed. However, in some cases, denaturation is irreversible and leads to a permanent loss of function.

One example of protein denaturation is when an egg is fried or boiled. The albumin protein in the liquid egg white denatures when exposed to heat, causing it to change from a clear substance to an opaque white substance. It's important to note that not all proteins are denatured at high temperatures. Bacteria that survive in hot springs, for instance, have proteins that are adapted to function at those temperatures.

Correct folding of proteins is crucial for their function. Some proteins fold automatically, while others receive assistance in folding from protein helpers called chaperones.

In open areas and around vessel swim platforms, certain activities should be avoided. what activity should be avoided in order to keep away from carbon monoxide

Answers

In open areas, never go near where the engines, generators or stoves are running and in vessel swim platforms avoid sitting back deck when the engines are running.

In order to stay away from carbon monoxide the following activities to be avoided such as :

Stay away from the areas in swim platforms where exhaust are locatedImmediate ventilation in the boats when carbon monoxide or fumes are detected Never run a car or truck near your house attached garageAvoid burning of stove, when there is no proper ventilation facility in the fireplaceDon't use generators, gasoline powered engines near window or door

Symptoms of the carbon monoxide poisoning includes headache, nausea, chest pain, shortness of breathe, and seizures.

So, the above listed measures should be taken to avoid the carbon monoxide.

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Final answer:

To prevent carbon monoxide poisoning near water vessels, avoid idling or using the boat's engine while stationary, especially where exhaust can accumulate near people. Ensure proper ventilation and install carbon monoxide detectors on board to detect dangerous levels of CO.

Explanation:

Activities to Avoid Near Water Vessels to Prevent Carbon Monoxide Poisoning

To prevent carbon monoxide poisoning when in open areas or around vessel swim platforms, there is one main activity that should be avoided: idling or using the vessel's engine for extended periods while stationary, especially close to people. Carbon monoxide is a colorless, odorless gas that can have harmful effects on the body, including dizziness, headaches, and even death. This gas is emitted from combustion processes such as those that occur in boat engines or generators.

Here are some specific precautions to take:

Do not swim near or under the back deck or swim platform while the engine or generator is running. Exhaust outlets are often located here, and CO can build up in these areas.

Avoid enclosed spaces where exhaust fumes can accumulate, even when outdoors.

Ensure proper ventilation in areas where fuel-burning appliances or engines are used.

Additionally, having functioning carbon monoxide detectors on board is crucial, as they can alert you to the presence of high CO levels. Remember that carbon monoxide can affect anyone, including pets, so it is vital to be mindful of everyone's safety on and near the water.

A _____ is a tiny space between the axon of one neuron and the dendrites or cell body of another neuron. glial cell reticular formation synapse basal ganglia

Answers

Not sure if this answered your question fully but hope it helps :)

What is a complex protein-iron compound in blood that carries oxygen to cells?

Answers

Hemoglobin carries the oxygen.

If worms prefer dark, damp places then the worms will move to the dark side of the box. this is an example of a(n)

A) hypothesis.
B) inference.
C) law.
D) theory.

Answers

Answer:

A) hypothesis.

Explanation:

Hypotheses are conjectures, speculations, predictions about a particular phenomenon of nature and how it behaves. Assumptions must be tested, which is usually accomplished through experimentation.

On the other hand theories are well-founded explanations for describing events that occur in nature. They involve thoroughly tested hypotheses, facts and laws. A theory may sound like a definitive explanation, but it may be overturned over the years.

What would happen if water from Tank A was added to Tank B?
a.the salinity in Tank A would be less
b.the salinity in Tank A would be higher
c.the salinity in Tank B would be less
d.the salinity in Tank B would be higher

Answers

When you take water from tank A then tank A salinity would not be less or higher so option A and B are out. The answer is depends on the relative salinity of tank A to tank B.
Assuming the tank A salinity is higher than B, then the tank B salinity will also become higher.
Answer: d.the salinity in Tank B would be higher

The ligament that attaches the ovary to the uterus is the ________ ligament.

Answers

Suspensory ligament. Hope this helps!

The ligament that attaches the ovary to the uterus is the ovarian ligament.

What is ligament?

Ligaments are bands of tissue that aid in the stability of bones, joints, and organs.

One can protect their ligaments in several ways. Ligament sprains are a common occurrence, particularly in the ankle, knee, wrist, back, and neck.

Ligaments, a dense type of connective tissue, are short bands of tough, flexible tissue made up of many individual fibers that connect the bones of the body. Ligaments are the structures that connect the bones in the body.

The utero-ovarian ligament or the ovarian ligament is the proper ovarian ligament. In the female body, the ligament connects the uterus to the ovary.

It is sometimes confused with the ovary's suspensory ligament, which is located on the opposite side of the ovary.

Thus, the answer is ovarian ligament.

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The outer hair cells respond to sound by slightly tilting and changing length. because of the consequence of this, the action of the outer hair cells is called the _____.​
a. ​the cochlear amplifier
b. ​phase lock mechanism.
c. ​the tuning response
d. ​the traveling wave

Answers

The outer hair cells respond to sound by slightly tilting and changing length. because of the consequence of this, the action of the outer hair cells is called the cochlear amplifier. 

This activity of outer hair cells can amplify the vibration so it's called cochlear amplifier. A disturbance in this mechanism can cause hearing loss.

) the two boxers battled toe-to-toe until the final round, when the longtime champion of the ring was finally ______ by his young opponent’s stamina.

Answers

The answer to this question is "STYMY" which means to hinder or prevent. This happened when the two boxers battled toe-to-toe until the final round comes and when the longtime champion of the ring was finally STYMY by his young and strong opponent's stamina. Until the both of them get weaker and when the final round ends only one win and the other one loses.

In the video for this lab we discussed the evolution of cheetahs. cheetahs evolved to be faster because faster individuals could catch the gazelles. how do you think the population of gazelles evolved while the cheetahs were evolving to be faster? explain how this evolution would have occurred.

Answers

In this case we can say that "The cheetah gave the gazelle it's speed".

The explanation to this is that when cheetahs hunt down the gazelle, they only try to catch the slowest of the herd, leaving the fastest gazelles to mate and pass their genes to the next generation. Therefore the next generation of gazelles would be fast. However for the cheetah to catch their food, they must be faster than the gazelles. Hence, the slowest cheetahs were not able to hunt a gazelle, and starved and died, leaving the faster cheetahs to mate and pass their genes to their offspring. This is the reason why cheetahs are still faster than gazelles.

The type of chemoreceptor responsible for our sense of smell is called a(n) ________.

Answers

The type of chemoreceptor responsible for our sense of smell is called a(n) olfactory receptor.

Chemoreceptors are specialized sensory receptors that respond to chemical substances. In the case of smell, these are known as olfactory receptors. These are found in the nasal passages and play a critical role in the detection of odor molecules. When we inhale air through our nostrils, chemical molecules in the air bind to these olfactory receptors. This binding excites specific receptors, and an assortment of signals from different receptors composes what we perceive as a 'smell'. These signals travel along nerves to the olfactory bulb, and from there to the brain, particularly the smell centers in the frontal lobe of the cerebral cortex. The olfactory receptor neurons have the unique capability of regenerating, which is necessary for maintaining the sensitivity of our sense of smell.

Which is the following is responsible for the exchange of gases in a leaf

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The exchange of oxygen and carbon dioxide in the leaf occurs through the pores, which are called stomata.

Treating a minor health problem yourself without seeking professional help is

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It is considered to be a self-care. A self-care is a way of taking care or protecting yourself to other or having your health problems to be cured all by yourself without the help of any medical professional or other people who could be of help of your service. It is a way of treating yourself in means of showing independence and does not ask anyone of help.

If the temperature of our oceans continues to rise, what possible long-term effect will this have on marine organisms?
The geographic range of phytoplankton will decrease thus increasing the base of the marine food chain.
The distribution of marine life will increase.
The diversity of marine life will increase.
The available oxygen of ocean waters will decrease, thus reducing marine life diversity.

Answers

The increase in temperature of the oceans is brought about by the general increase in the temperature of the Earth especially due to global warming and others.

If the temperature of the water, in this case ocean, increases, the solubility of the oxygen is decreased. This is because oxygen molecules have higher kinetic energy allowing them to move out of the soution or water body. Generally, this means that the oxygen level would deplete and thus reducing marine life diversity.

The answer to this item is letter D. 

the correct answer is D

Which cell of hematopoiesis is responsible for the production of red blood cells (rbcs) and platelets?

Answers

The cells of hematopoiesis that is responsible for the prodcution of red blood cells and platelets is MYELOID STEM CELLS; they are developed from HEMATOPOIETIC STEM CELLS in the red bone marrow. Myeloid stem cells give rise to other blood cells through the process of hematopoiesis. 
Final answer:

The myeloid cell line is responsible for the production of red blood cells (RBCs) and platelets in the process of hematopoiesis.

Explanation:

The production of red blood cells (RBCs) and platelets is performed by the myeloid cell line within the process of hematopoiesis. The myeloid stem cells differentiate into different cell types, including erythrocytes (RBCs) and megakaryocytes, which produce platelets.

What should you do before measuring liquid volume with a graduated cylinder?

Answers

Masses and volumes are critical in any chemical reaction. An extra drop of a certain reactant can lead to a disaster.

Also, the combination of certain compounds or elements together can give drastic outputs.

Therefore, you should be very accurate in your measurements to the masses and volumes of the compounds that you'll use.

Based on this, before measuring a liquid volume in a graduated cylinder, you need to be absolutely sure that the cylinder is completely dry and does not contain any traces of any other liquid.

All chemicals in the lab are to be considered dangerous true or false

Answers

The answer to your question is true.
Final answer:

False. The hazard diamond provides information about the potential hazards of a chemical substance.

Explanation:

False. Not all chemicals in a lab are considered dangerous. The hazard diamond symbol, also known as the fire diamond or hazard diamond, is used to provide information about the potential hazards of a particular substance.

The hazard diamond consists of four colored diamonds, each representing a different hazard. The blue diamond represents health hazards, the red diamond represents fire hazards, the yellow diamond represents reactivity hazards, and the white diamond represents specific hazards.

Therefore, it is important to consult the hazard diamond and follow proper safety procedures when working with different chemicals in a laboratory setting.

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"Exponents and Multiplication- Simplify. Your answer should only contain positive exponents." Please help quickly !! What is it called when the group that wins an election appoints its own people to the best jobs? Radioactive decay occurs when two nuclei are smashed into each other and combine to form a much larger nucleus and release a vast amount of energy.True False In the world of computers, the term ____ refers to the computers physical components, such as the monitor, keyboard, motherboard, and hard drive. __________ is the largest city in texas with a mayor-council form of government. Which excerpt from Click It or Ticket Mobilization Media Campaign best achieves the purpose of informing people that seat belt laws are enforced nationwide?A.Those who drive and ride in pickup trucks may think that their large vehicle will protect them more than other vehicles in a crash. This false sense of security may cause them to not wear their seat belts, but the stats show that this bravado is misplaced.B. In 2012, 13,268 traffic fatalities occurred in rural locations, compared to 8,341 traffic fatalities that occurred in urban locations.C.People who live in rural areas might believe that the close-knit nature of their small town will get them out of a ticket. However, motorists should not think that knowing the officer who pulled them over will help them avoid a ticket.D. Local law enforcement officers are actually trained to spot seat belt violations at night, so just because its dark, dont think they wont be able to spot unbelted drivers. why did thomas jefferson object to letting the national government issue a charter for a national bank The was a massive scientific undertaking meant to identify and sequence all of the genes found in a human cell. this is just one example of , the bran Rewrite the rational exponent as a radical.5 to the 3 over 4 power, to the 2 over 3 power A.the cube root of 5 squaredB. the twelfth root of 5C. the square root of 5 D.the cube root of 5 the fourth power Explain why body substance isolation (BSI) is generally the preferred method of isolation used by pre-hospital and out-of-hospital providers an actor gains 20pounds for a part and then losses 15 pounds during the filming of the movie to go along with the story.who do you write a addition expression to describe this situation The test statistic calculated by the statistical procedure selected is known as the Derive the equation of the parabola with a focus at (5, 5) and a directrix of y = 1. The area of a triangle is 6 square feet. The base is 3 times its height. What is the base of the triangle? Biological organization extends beyond the organism to include which of the following?A.populations,communities, and ecosystems B. DNA,RNA , and proteinC. Cells, tissues, and organs Jerry received both the 15th highest and the 15th lowest mark in the class. how many students are in the class? Aiko stands 5 m from a tree. At that distance, the angle of elevation from the ground to the top of the tree is 80. Approximately how tall is the tree? Lines with irregular meter and length are called _____. I. Fill in the blanks in the following sentences with the appropriate Spanish word.1. Mi familia y yo ____ (vivir) en Colorado.2. Me ____ (encantar) las fresas.3. Juan y yo ___ (beber) mucho jugo.4. What does the waiter bring you at the end of a meal in a restaurant? 5. Starbucks vende ____ .6. La ____ es una fruta roja y pequea y va bien con el cereal.7. T ____ (comer) mucha fruta.8. A Juan y a Rita _____ ofende la msica rock.9. Uds. no ____ (escribir) la tarea.10. Quieren un _____ ? La torta (cake), las frutas, y el flan son deliciosos. Which of the following is not a power of the United States Congress? A. Regulating commerce between the states B. Establishing and paying for the armed forces C. Enforcing immigration laws D. Levying and collecting taxes Steam Workshop Downloader