how would you make an extract of a food to test for reducing sugar​

Answers

Answer 1
To test for the presence of reducing sugars, a food sample is dissolved in boiling water. Next, a small amount of Benedict's reagent is added and the solution begins to cool. During the next four to 10 minutes, the solution should begin to change colors. If the color changes to blue, then no glucose is present. If a high amount of glucose is present, then the color change will progress to green, yellow, orange, red and then a dark red or brown.

Related Questions

as a result of fertilization_____is formed​

Answers

Answer:

zygote

Explanation:

Fertilization is the process in which haploid gametes fuse to form a diploid cell called a zygote. To ensure that each zygote has the correct number of chromosomes, only one sperm can fuse with one egg.

Do spring tides have the lowest tides

Answers

Answer:

No

Explanation:

King tides are the highest tides. ... In the lunar month, the highest tides occur roughly every 14 days, at the new and full moons, when the gravitational pull of the Moon and the Sun are in alignment. These highest tides in the lunar cycle are called spring tides.

Which of the following are examples of a physical property of matter?
Iron (Fe) combines with Oxygen (O) to form rust.
the apple is red in color.
Copper (Cu) conducts electricity.
An apple oxidizes (turns brown) once it is cut and exposed to Oxygen (O).
Nickel (Ni) is magnetic.
Magnesium (Mg) combusts when exposed to Oxygen (O).
Water boils at 100ºC.

Answers

Answer:

the apple is red

copper conducts electricity

nickel is magnetic

water boils at 100

Explanation: the rest are chemical properties

What type of protein is missing in the blue people of KY?​

Answers

Answer:

four-part protein

Explanation:

The blue people of Troublesome Creek had methemoglobinemia, a metabolic condition affecting hemoglobin, the four-part protein that carries oxygen bound to an iron atom at each subunit's core.

Hope this helps:)

Answer:

The blue people of Troublesome Creek had methemoglobinemia, a metabolic condition affecting hemoglobin, the four-part protein that carries oxygen bound to an iron atom at each subunit's core.

Explanation:

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The golden-cheeked warbler and the black-throated green warbler look nearly identical to each other. What type of information could be used to determine if the birds are separate species? Select all that apply. The birds breed with each other where their territories overlap. The birds breed with each other where their territories overlap. The birds show differences in mating songs and behaviors. The birds show differences in mating songs and behaviors. The birds do not breed with each other where their territories overlap. The birds do not breed with each other where their territories overlap. The birds compete for food and nesting sites. The birds compete for food and nesting sites.

Answers

Answer:

The birds do not breed with each other where their territories overlap.

Explanation:

The correct answer would be that the birds do not breed with each other where their territories overlap.

A species consists of organisms that are phenotypically similar and are capable of mating to produce fertile progeny.

Hence, the first thing to establish that two organisms are not of the same species is the inability to breed with each other. If an eventuality occurs and they are able to breed, the resulting progeny would be invalid.

Therefore the fact that the golden-cheeked warbler and the black-throated green warbler do not breed with each other where their territories overlap is enough information to determine that the birds are separate species.

A scientist compares two samples of white powder. One powder was present at the beginning of an experiment. The other powder was present at the end. She wants to determine whether a chemical reaction has occurred. She finds that neither sample bubbles or dissolves in water. She measures the mass and volume of the solids. Sample one has a volume of 45 cm3 and a mass of 0.5 g. Sample two has a volume of 65 cm3 and a mass of 1.3 g. What should the scientist conclude?

A.
The samples have the same color, so no chemical reaction has occurred.
B.
The two samples do not react with water, so no chemical reaction has occurred.
C.
The densities of the samples are different, so a chemical reaction has occurred.
D.
The densities of the samples are the same, so no chemical reaction has occurred.
E.
The densities of the samples are different, so no chemical reaction has occurred.

Answers

Answer:

I think it is C because there densities are different.

To where does carbon dioxide go?

Answers

Some stays in the air domes taken up by plants

What differentiates Hela cells from other human cells?

Answers

Answer:

a normal cell contains 46 chromosomes whereas HeLa cells contain 76 to 80 (ref) total chromosomes, some of which are heavily mutated (22-25), per cell.

Explanation:

The main difference between Hela cells from other human cells is that a normal cell contains 46 chromosomes whereas HeLa cells contain 76 to 80 (ref) total chromosomes, some of which are heavily mutated (22-25), per cell.

What happens when the involvement of hela takes place?

The involvement of hela made to the developing field of genetics is a lot was educated about cell reproduction, DNA and mapping genetics. The hela cells prepared them ideal for use in the polio vaccine trials because they were more liable than other cultured cells.

Cancer cells such as Hela cells escape to normal cell cycle by mutations that lead to the misexpression and/or overexpression of regulatory molecules (e.g., cyclins and cyclin-dependent kinases) and faulty checkpoint control of the cell cycle.

The control of the cell cycle depends on 1-cyclins and cyclin-dependent kinases (CDKs) that regulate the cell cycle by a cascade of protein phosphorylations and 2- a group of checkpoint controls that monitor the completion of critical cellular events.

Therefore, The main difference between Hela cells from other human cells is that a normal cell contains 46 chromosomes whereas HeLa cells contain 76 to 80 (ref) total chromosomes, some of which are heavily mutated (22-25), per cell.

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How does the oyster population
In the Chesapeake Bay ecosystem affect the floating to sea floor ratio of algae
populations

Answers

Answer:

Analysis of the data shows that the ratio of floating algae to sea floor algae dramatically increased at the same time that oysters were removed from the Bay. ... (It is also possible to infer from the graph that high floating algae levels led to the decline in oysters.

Answer: Analysis of the data shows that the ratio of floating algae to sea floor algae dramatically increased at the same time that oysters were removed from the Bay. ... (It is also possible to infer from the graph that high floating algae levels led to the decline in oysters.

A cell is placed in a hypertonic solution. Which will most likely occur as homeostasis is maintained in the cell?

A.
The cell will gain ATP molecules.

B.
The cell will gain water.

C.
The cell will lose water.

D.
The cell will lose sodium ions.

Answers

Answer:

B the cell will lose water

Explanation:

Because of the hypertonic solution water will move on the concentration gradient leaving the cell and entering the solution. Thus the cell looses water.

When a cell is placed in a hypertonic solution, it will most likely lose water (Option C) as homeostasis is maintained in the cell.

What is homeostasis?

Homeostasis is the ability of an organism or a system to maintain a relatively stable internal environment, despite changes in external conditions. It is a key aspect of biology that helps living organisms survive in their environment. Homeostasis is maintained through a series of physiological processes that regulate different aspects of an organism's biology, such as temperature, fluid balance, and pH

A hypertonic solution is one that has a higher concentration of solutes (e.g. salts) outside the cell compared to inside the cell. This creates an osmotic pressure gradient, which draws water out of the cell and into the solution in an attempt to balance the concentration of solutes on both sides of the cell membrane. As a result, the cell will shrink and lose water.

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What are 2 characteristics of index fossils?

Answers

A useful index fossil must be distinctive or easily recognizable, abundant and have a wide geographic distribution and a short range through time. Index fossils are the basis for defining boundaries in the geologic time scale and for the correlation of strata.

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1 point
Which explanation best identifies the relationship between mitosis and
reproduction? *
Mitosis is a form of sexual reproduction because the daughter cells form from one
single parent cell.
Mitosis is a form of sexual reproduction because the daughter cells are genetically
different from the parent cell.
Mitosis is a form of asexual reproduction because the daughter cells form a new
nuclear membrane after reproduction.
Mitosis is a form of asexual reproduction because the daughter cells are genetically
identical to the parent cell.

Answers

muscle of the prada’s

What events occur when the tectonic plates move and grind against each other?

Answers

Answer:

Earthquakes

Explanation:

Since the Tectonic Plates slide across each other it cause some to go above and some below which might eventually cause an earthquake.

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How does the Department of Environmental Protection try to prevent water breaks from happening? Answer

Answers

Answer:

water mains break. And when they do, they disrupt the lives of those serviced by them. Breaks can close down roads, cause damage to property and generally wreak havoc on the area around it. So why does it happen? This simple guide can help explain it to your customers.

Explanation:

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what does dna have a high concentration of

Answers

Answer:

Nucleotides

Explanation:

DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating

explain exocrine system?? ​

Answers

Answer:

Exocrine: Pertaining to the secretion of a substance out through a duct. The exocrine glands include the salivary glands, sweat glands and glands within the gastrointestinal tract. Exocrine is as opposed to endocrine which refers to the secretion of a substance (a hormone) into the bloodstream.

mportant vocabulary continued:what is the difference between a unicellular organism and a multicellular organism?

Answers

Answer:

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. ... Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions.

Explanation:

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Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. ... Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions.

When do populations increase?

Answers

Answer:

c

Explanation:

i have seen this before and i got it correct i dont know if it works with you?

hey there!
the correct answer would be C when birth rights are higher then death rights.
this is correct because when there are more people being born and less dying there are more overall people.
hope this helped!

A large group of seals from Prince Harold Coast Antarctica has emigrated to Oates Coast Antarctica How will this impact the remaining seal population Prince Hard Coast
A The Prince Harold population will decrease
B. The Prince Harold population will increase
C The Prince Harold population will be reduced to zero
DThis will have no impact on the Prince Harold population

Answers

Answer:

B

Explanation:

Because now it’s a larger group

B because it will increase

Our biggest loser went from 403lbs to 288lbs. He lost a total of 215lbs. Explain what happened to the 215lbs. Be sure to discuss what he did, the process(es) that took place, the type of matter he lost, and the type of matter he lost it as.

Answers

Answer:

Explanation:

Weight on a human body is mainly stored as muscle or fat. When we exercise we don't necessarily lose fat. Instead, the fat cells tend to shrink in size but remain the same amount. Fat is converted into energy which the body uses to function. This energy is expelled from the body in many different forms such as carbon dioxide and sweating. Therefore those are the matter that the individual in question lost when losing the 215lbs

Describe how new hair fibers are formed

Answers

Answer:

Taking nutrients from the dermal papilla, the hair bulb generates new hair cells. As these cells move up through the hair root, they mature through a process called keratinization, fill with fibrous protein and lose their nucleus.

Explanation:

I found this on the internet and don't know if it is correct but if it is can I get a brainliest please?

In general, food molecules are ___________ by the digestive tract of organisms so they can be _______________.
Select one:

broken down; absorbed into the bloodstream

broken down; released as heat

combined; absorbed into the bloodstream

converted to energy; used to power the muscles

Answers

Answer:

converted to energy ; used to power the muscles

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Two plants were being tested for growth. Both were given water and proper soil, etc. However, one was placed in the closet, and one was placed in the window sill. Why did the one in the closet die?

Question 4 options:

It did not have chloroplasts.


It was not around other plants.


It did not receive sunlight.


It was not around people enough.

Answers

Answer:

It did not receive sunlight.

Explanation:

Plants need sunlight to survive along with water and nutrients from the soil.

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Explain the importance/need for homeostasis.

Answers

Answer:

look

Explanation:

So ur body can work properly and without it you can die (: Hope I helped im not the best at this.

How are viruses, bacteria, and parasites alike?
A. They are non-living and can cause disease.
O
B. They are multi-cellular and can cause disease.
O C. They can infect a host and cause disease.
O
D. They are unicellular and can cause disease.

Answers

C they can infect a host and cause disease
Edge 2020

Which of the following represents a cross between two heterozygous plants?
A. Ww x WW
B. ww x WW
C. Ww x Ww
D. WW x WW

Answers

c I hope it’s right

Genetics is the study of
A: Cell Division
B: Heredity
C: Body systems
D: Sexual Reproduction

Answers

Answer:

B. Heredity

Explanation:

Answer= B (heredity).

I hope this helps.

During the day when the sun is shining the ground gets warm mainly as a result of

Answers

Answer:

The ground becomes warm by the effect of sunlight.

Explanation:

This is because the sun radiates huge amount of heat from its surface. This heat reaches the earth in the form of light energy. This heat is absorbed by the earth's surface and makes it warm.

if a microscope has a eyepiece lens with a power of 25X and an objective lens with a power of 50X, what is the microscope's total magnification power?

Answers

Answer:

1250

Explanation:

What is true about the insanity defense?

It is defined in the Diagnostic and Statistical Manual of Mental Disorders.
It can be used only if a person is diagnosed with a specific disorder from the DSM.
It is a legal term used to determine if a person can be held accountable for a crime.
It is a legal term that helps to determine if a person committed a crime or not.
It cannot be used if a person was previously found to be responsible for a different crime.

Answers

It is a legal term used to determine if a person can be held accountable for a crime

It's a legal term used to determine if a person can be held accountable for a crime. Hope this helps; have a wonderful day.

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