A student carried out an experiment to model the digestion of starch by the enzyme amylase in the small intestine.

Visking tubing is a selectively permeable membrane that has small holes in it to allow small molecules to pass through. At regular intervals, the student tested the liquid inside and outside the Visking tube.
How could the student test for the presence of starch inside the Visking tubing?

Answers

Answer 1

Answer:

Put one drop on the dimple tile, and the rest in a test tube. Then put the teat pipette back in the water outside the Visking tubing. Test the drops of liquid in the dimple tile by adding one drop of iodine solution from the dropper bottle. If they turn blue-black, the liquid contains starch.

Explanation: i hope this helped :)


Related Questions

How are proteins and nucleic acids related?

Answers

Answer:

Element of proteins

Explanation:

Nucleic acids contain the same elements as proteins: carbon, hydrogen, oxygen, nitrogen; plus phosphorous (C, H, O, N, and P).

Please please answer my question if you see it please

Answers

I’ve annotated your question and colour coded the answer, (the dotted line represents current bird population) and blue line represents what the population will look love after natural selection

Think about Compounds in Your Body
Many functions in the body are controlled by special compounds. Which statements about these compounds do you think are true? Check all that apply.

The body can make all of the compounds it needs.

The body gets energy from some compounds.

Some compounds determine physical characteristics.

Answers

Answer:

the body can make all of the compounds it needs

Explanation:

the body gets energy from some compounds

HELPPP SOMEONE TOLD ME IT'S THE THYROID BUT I FEEL LIKE IT'S THE ADRENAL GLAND
Janelle was telling her mom about a dream where she was being chased by wolves. She said she ran and ran and when she woke up, her heart was beating rapidly, and she was very tired.
Which gland had secreted a hormone that caused her body to respond in this way?

A) the thyroid
B) the thymus
C) the pancreas
D) the adrenal gland

Answers

The gland that secreted the hormone that made Janelle respond as such would be the adrenal gland.

The adrenal gland

The adrenal gland is responsible for the secretion of hormones such as cortisol, adrenaline, and aldosterone. These hormones have a wide variety of functions that help maintain the normal body system

Of particular importance is adrenaline in the fight or flight response of humans. It makes major blood vessels contract and redirects blood to the heart - thus causing the heart to beat faster.

Hence, Jenelle's response would have been due to the adrenal gland producing the adrenaline hormone.

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what makes phylum arthropoda different from other phylum of kingdom Animalia​

Answers

see the file attached!!

Evolution A) can happen whenever any of the conditions for Hardy-Weinberg equilibrium are not met B) requires the operation of natural selection C) must happen, due to organisms' innate desire to survive D) must happen whenever a population is not well adapted to its environment.

Answers

Answer:
The correct answer would be A. Can happen whenever any of the conditions for Hardy-Weinberg equilibrium are not met.

Where in a typical eukaryotic cell would you expect to find genes?.

Answers

The typical eukaryotic cell you will find is:

Mature mRNA

Mature m(messenger)RNA is a type of single-stranded RNA that takes part in protein synthesis and is made up of a DNA template during the process of transcription.

HAVE A NICE DAY!

You would find genes in nucleus

What is the division of the nucleus of a cell called?

Answers

Mitosis

Hope this helped im sorry if I’m wrong

write three characteristics of fungi​

Answers

[tex]\large{\underline{\underline{\pmb{\frak {\color {red}{Question:}}}}}}[/tex]

[tex] \sf \red{What \: is \: fungi?}[/tex]

[tex]\large{\underline{\underline{\pmb{\frak {\color {blue}{Answer:}}}}}}[/tex]

Fungi is single celled micro organism, which grows in plants or soil. Fungi can be mostly found on soil or dead plants or dead matter.

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[tex] \sf \red{Write \: three \: characteristics \: of \: fungi}[/tex]

[tex]\large{\underline{\underline{\pmb{\frak {\color {blue}{Answer:}}}}}}[/tex]

[tex]\green\star[/tex]Three characteristics of Fungi are:

Fungi reproduce through spores. Fungi are mostly Eukaryotic or single celled. Fungi can play major role in recycling.

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You identify a new species of microorganism in an undersea thermal vent. The microbe is a single cell organism that lacks a nucleus. Which Domain would you classify your new species as belonging to

Answers

The domain of the new species of unicellular microorganism in an undersea thermal vent that lacks a nucleus is Archeae.

What is domain?

Domain in biology refers to the highest rank in the classification of organisms, above kingdom.

The three domain of organisms are as follows:

Prokarya or BacteriaArchaeaEukarya

Members of Prokarya and Archaea do not possess a membrane-bound nucleus, however, the major difference between them is that members of domain Archaea are found in extreme habitats e.g. hot regions.

Therefore, the domain of the new species of unicellular microorganism in an undersea thermal vent that lacks a nucleus is Archeae.

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The human body contains more than_cells
•100 trillion
•10 billion
•100 billion

Answers

Answer:100 trillion cells

Explanation: hope this helps (; rate 5 thank and pick me brainliest

The climate changes on Earth tend to be self-amplified. For example, the Earth is currently going through a warming trend. As the Earth’s temperature rises, the ice caps and sea ice melt, reflecting less solar radiation. This results in more absorption of the Sun’s heat, causing the Earth’s temperature to rise more, and the ice to melt more. This is an example of what type of system?

Answers

Answer:

positive feedback system

Explanation:

1. A new species of multicellular, eukaryotic heterotrophs is discovered. This species secretes digestive enzymes to digest its food externally. Which taxa would this organism belong to?

A.
domain Archaea

B.
phylum Platyhelminthes

C.
kingdom Fungi

D.
kingdom Animalia

2. Mammals and reptiles both belong to the amniote clade. What is the evolutionary significance of this clade?

A.
Amniotes produce membranes that allow them to reproduce without laying eggs in water.

B.
Amniotes produce milk to feed their offspring.

C.
Amniotes were the first vertebrates to evolve limbs specialized for living on land.

D.
Amniotes were the first vertebrates to evolve jaws for digesting the tough food found on land.

3. Which of the following is an example of negative feedback leading to homeostasis?

A.
a sponge conforming its internal salt concentration to match the salinity of its environment

B.
a frog slowing its metabolic rate while hibernating over the winter

C.
a cat’s uterine contractions increasing in strength as it gives birth to a litter of kittens

D.
a human sweating to reduce his or her body temperature on a hot day

Answers

2.In the evolutionary process, mammals and reptiles evolve Amniotes produce membranes that allow them to reproduce without laying eggs in water.

What are aminiot animals?

Amniote animals are those that have amnion surrounding the embryo, while non-amniotes do not have this membrane.

3.Homeostasis in environments can have as a negative example a sponge conforming its internal salt concentration to match the salinity of its environment.

By saving too much the marine environment limits the lives of other animals causing them to migrate in this way, there will be a collapse in the food chain.

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is the insect respiratory system more or less effective compared to the human respiratory system?​

Answers

I'd say more effective.

"Insects have a more efficient respiratory system than humans. "

But at the same time insects don't have any lungs they breathe through the help of trachea/tubes/and or holes along their abdomen area.

You need to think about how small, compared to us humans, and insect is. They can take in a lot more oxygen than we can (for their size)

If we were to be able to shrink until we're the same size as an insect, they would be the ones taking in way more oxygen because of the way their system is constructed.

How is the skin part of the integumentary system and the excretory system?
(Hint: Think of what happens when your body gets very hot.)

Answers

Answer:

let's first say that the skin is the largest organ and it's a part of the integumentary system because it helps regulating the body temperature and Incase of high temperature it releases sweat from it's specific swear pores

Answer:

Sweat glands in the skin allow the skin surface to cool when the body gets overheated.\

Explanation:

Draw the structure of the major product formed in the given reaction when the aromatic aldehyde is present in excess

Answers

When excess aromatic aldehyde( acetone) reacts with another element such as chlorine trichloroacetone is formed.

What is aromatic aldehyde?

Aromatic aldehyde is defined as the chemical compound that contains the functional group CHO, such as benzaldehyde and acetone, which has an almond-like odour profile.

When excess aromatic aldehyde( acetone) reacts with another element such as chlorine, trichloroacetone is formed.

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I need help this is Cells
Which structure is it??
A
B
C
D

Answers

the answer is I need help this cells which structure is it ? answer: the a,b,c,d

1
Select the correct answer from each drop-down menu.
Earth's atmosphere helps to regulate its temperature. However, the addition of gases such as
causes more energy to radiate back
toward Earth. As a result, the atmospheric temperature increases over time.
If Earth had no atmosphere, it would radiate nearly as much energy as it receives from the Sun. This implies that the temperatures on Earth would
be
Earth's current temperature.

Answers

Answer:

Carbon dioxide; lower than.

Explanation:

Temperature can be defined as a measure of the degree of coldness or hotness of a physical object. It is measured with a thermometer and its units are Celsius (°C), Kelvin (K) and Fahrenheit (°F).

Radiation is simply the transmission or emission of energy in the form of particles or electromagnetic waves through a vacuum, material medium or space.

Earth’s atmosphere helps to regulate its temperature. However, the addition of gases such as carbon dioxide causes more energy to radiate back toward Earth. As a result, the atmospheric temperature increases over time. If Earth had no atmosphere, it would radiate nearly as much energy as it receives from the Sun. This implies that the temperatures on Earth would be lower than Earth’s current temperature.

Which of the following processes make producers so unique?

Answers

Answer:

I would say b

I might be wrong but I hope i helped! ^^

Answer:

it is D

i am pretty sure

Explanation:

plants use the solar energy from the sun to be able to make chemical energy to synthesis their food( this process is called photosynthesis)

The sport of American football has come under fire since some professional players have reported head injuries that have led to severe disabilities or even death. Football is very popular in the United States, so the ramifications of such findings are troubling for coaches, players, and fans. Researchers are studying the physical effects of head injuries, how to treat them, and how to prevent them in the first place. If you or someone you care about participates in a sport in which head injuries are common, where would you look for reliable information about the symptoms of a head injury and what to do about it?

Answers

In a sport where head injuries are common, it is necessary to seek reliable information about the symptoms of a head injury from a neurologist.

What are the dangers of American football?

Considered a high-impact sport due to the constant contact and high rate of orthopedic trauma to players during training and games, traumatic shocks to the head and spine have always been the most worrying problems because they put in check vital parts of the athletes' body.

With this information, we can conclude that in a sport where head injuries are common, it is necessary to seek reliable information about the symptoms of a head injury from a neurologist.

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Analyze the given diagram of carbon cycle below.

An image of carbon cycle is shown. The sun, a cloud, two trees, one on the left and the other on the right, an animal, lake, and a factory are shown in the image. An arrow is shown from the sun towards the left tree marked A. The sun is marked B. There is an arrow from the air above the clouds, marked C, towards the left tree. An arrow from a location close to the ground marked D points towards Dead Organisms, which is a label under the animal. An arrow marked E points from the right tree straight up to the clouds. An arrow marked F points from the animal straight up to the clouds. An arrow marked G points from the factory towards the air above the clouds, C. There is an arrow pointing from the air to the lake labeled Carbonates in Water, an arrow pointing down from dead organisms to Fossils and Fossil Fuels, and an arrow from Fossils to the factory.

Part 1: What is happening at location G?
Part 2: Which type of energy transformation is taking place at this location?
Part 3: Justify why this process is a recycling of carbon in the carbon cycle.

Answers

The carbon cycle recycles carbon in the earth and at G, carbon dioxide is released into the atmosphere at G, thus contributing to the carbon cycle.

What is the carbon cycle?

The carbon cycle is a diagrammatic illustration of a cycle which describes how carbon is recycled in the earth.

The carbon cycle shows the process of how carbon is released to the atmosphere and how it is returned back to the earth's crust.

The process marked G illustrates combustion releasing carbon dioxide to the atmosphere.

The energy transformation at G is chemical energy to heat energy.

Therefore, the carbon cycle recycles carbon in the earth and at G, carbon dioxide is released into the atmosphere at G, thus contributing to the carbon cycle.

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Explain how the development of agriculture and the green revolution both affected humans. then explain how agriculture and the green revolution affected the environment. please be detailed in your response and write in complete sentences for full credit.

Answers

Answer:

The Green Revolution involved the widespread use of chemicals in agriculture that had adverse environmental impacts. The interrelationships between water resources, erosion, pesticides and fertilizers, deforestation, population pressure, and biodiversity, and farmers are individually addressed.

Explanation:

The development of agriculture and the green revolution affected humans by increasing food production. However, it also led to environmental degradation.

What is green revolution?

The development of agriculture provided humans with a stable food supply and allowed for the growth of civilizations. It also led to the domestication of animals and the creation of farming communities. The Green Revolution, which began in the mid-20th century, involved the development and implementation of new agricultural technologies and increased the productivity of crops, leading to increased food production and economic growth in many countries.

However, the use of pesticides and fertilizers in agriculture has had negative impacts on the environment, including soil degradation, water pollution, and loss of biodiversity. The Green Revolution also resulted in the increased use of mechanized farming, which led to the loss of natural habitats and the displacement of wildlife.

Climate change caused by agricultural practices, such as deforestation, and the use of fossil fuels in farming, has also had a significant impact on the environment.

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May I get some help with his homework question?

Answers

it helps with blending in with its environment, therefore keeping it safe from predators

3
Which of the following is the first source of energy in the food chain?
A the sun
B) the moon
c) the ocean
D) the clouds

Answers

Answer:

the sun!!

Explanation:

the sun is always going to be your first resource! Goodluck! <33

The first source of energy in the food chain is always going to be the sun

Why?

Sun is basic source for any plant to get ready I.e if a plant has to grow and prepare food it requires sun , sunlight is used as a part of photosynthesis along with water.

Why not moon/ocean/the clouds
Moon ,ocean,clouds isn’t favorable for a plant to grow.

draw a ppunnett sqare using the allele symbol H amd h to show the expected genotypes of the man and women biological children.

Answers

The Punnett square is used to make predictions about the genotype and phenotype of a future generation according to the alleles involved in the cross. 25% HH, 50% Hh, 25% hh.

What is a Punnett square?

The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.

Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.

Let us assume that in the exposed example both parents are heter0zyg0us for the trait.

The feature is coded by a single diallelic gene in which H is the dominante allele and h the recessive allele.

Cross:

Parentals)  Hh     x     Hh

Gametes) H    h       H     h

Punnett square)      H          h

                       H     HH        Hh

                       h      Hh         hh

F1) Genotype

- 1/4 = 25% of the progeny is expeted to be h0m0zyg0us dominant, HH

- 2/4 = 1/2 = 50% of the progeny is expected to be heter0zyg0us, Hh

- 1/4 = 25% of the progeny is expeted to be h0m0zyg0us recessive, hh

    Phenotype

- 3/4 = 75% of the progeny is expected to express the dominant trait

- 1/4 = 25% of the progeny is expected to express the recessive trait

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Sickle-cell disease is a disorder that results in malformed hemoglobin molecules. What is the result of this in terms of hemoglobin function

Answers

The result of this disease in terms of hemoglobin function is a defective transport of oxygen in the blood cells.

What is sickle-cell disease?

Sickle-cell is a genetic disease where blood cells are known to encode a defective hemoglobin protein.

Hemoglobin protein is responsible for transporting oxygen to all cells of the body, thereby sickle-cell disease causes a problem in this function.

In conclusion, the result of this disease in terms of hemoglobin function is a defective transport of oxygen in the blood cells.

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The main difference between ponds and lakes is that ponds _______.
a.
are inland bodies of water
b.
do not develop self-contained ecosystems
c.
are smaller than lakes
d.
have easily observed currents

Answers

Answer:

Option C

Explanation:

C.they are smaller than lakes

How does nuclear envelope aide in compartmentalization

Answers

The nuclear envelope distinct the process of transcription and translation in the cell. It controls the release of mRNA from the nucleus through the biological process of transcription.

What is a Nuclear envelope?

A nuclear envelope may be characterized as a positively regulated membrane barrier that separates the nucleus from the cytoplasm in eukaryotic cells.

The process of transcription occurs inside the nucleus and transforms DNA into mRNA, while the process of translation occurs in the cytoplasm which transforms mRNA to specific protiens.

Therefore, it is well described above.

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Which amino acids are most likely present at the dimerization interface of stat3 proteins?.

Answers

Answer:

Hydrophobic Amino Acids.

Explanation:

If the following mRNA strand were produced during transcription, what amino
acids would be found in the protein?
CAUGGUGGCUACGGG
The table below shows which amino acid results from each codon.
Amino acids
Glycine
Histidine
Tyrosine
Codons
GGU
CAU
UAU
GGC
CAC
UAC
GGA
GGG
• A. Glycine-histidine-histidine-tyrosine-histidine
• B. Histidine-glycine-glycine-tyrosine-glycine
• c. Glycine-histidine-glycine-glycine
D. Histidine-glycine-glycine- glycine

Answers

Answer:

Histidine, Glycine, Glycine, Tyrosine, Glycine

Explanation:

Answer B

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Mira Royal detective theme song Enumerate both the major and the minor characters in the selection. Write the name of the character at the center. On the right side, write his/her good qualities while on the left side, write his/her bad qualities. Make sure to explain briefly why you consider such attributes good or bad. Match the definition to the term.1. Great Vowel Shift2. voice3. mood4. morphology5. collective6. adjective placement7. syntax8. abstractthe way words are put together to form sentencesthe change that occurred when the pronunciation of vowels changed in Middle Englisha noun standing for more than one person, place or thinga common noun referring to a quality or idea that cannot be seen or touchedindicative, imperative, subjunctivewhether the subject acts or is acted upon is shown byattributive, appositive, predicatethe study of word forms and how they are affected by their origins. The radius of a circle is 7 mm. What is the area. Find the mean of a student test scores if he earned 5, 93, 85, 90 and 91 points on five tests Essay on drinking water in Nepal . please help me with thiss 5. Choose the correct form of the possessive for the underlined word in the following sentence:"A years worth of hard work has finally paid off."OyearOyearsOyears'Oyear's(1 point) A dunk tank hold 30,533 moles of water? How many grams of water are in the tank? The two most important factors that characterize climate are ________ and temperature.A scientist studying short-term weather patterns needs to look at _______.Both precipitation and _______ influence what the climate is in a specific area.A hiker knows she is on the _______ side of a mountain because theres a lot of vegetation.When the temperature is significantly warmer in the northern part of North America, a/an _______ oscillation is taking place.Respond to the following based on your reading.Describe how the Antarctic Circumpolar Current helps regulate the European climate. Which of these most likely explains why the bacterial population stopped growing? Was this a chemical reaction? Did new products form? Make the choice that answers those questions: A jar contains 8 red marbles, 6 blue ones, and 6 yellow ones. One marble is chosen at random. The color isrecorded in the table, and then it is returned to the jar. This is repeated 40 times.Red Blue Yellow111118 Can Anyone help me?Which of the following is a complete sentence? A. Because the story was long and filled with complex words and complicated puns, she fell asleep. B. Although the cook, Wendy, is a hard worker, and I dare say a very efficient, caring sort of woman. C. Since she had scored so high on the difficult test and the others had not done very well at all. How does the body obtain more glucose, if it is needed for cell respiration? Can someone please help? This is sooooooooo hard!!! :( what is the different nobel gases that didnt have octet rule How is ananatomicaladaptationdefined?A. a system present within theorganism that allows it to perform abiochemical reactionB. a feature of the organism's bodythat helps it survive and reproduceC. a response from the organism thatchanges it's behavior to help it surviveand reproduce The equation of a circle is given below:x squared minus 8 x plus y squared plus 6 y minus 11 equals 0Identify the center and radius of the circle. Group of answer choicescenter: left parenthesis 4 comma minus 3 right parenthesis radius: 6center: left parenthesis negative 8 comma 6 right parenthesis radius: 6center: left parenthesis 4 comma minus 3 right parenthesis radius: 36center: left parenthesis negative 8 comma 6 right parenthesis radius: 36 I need help with the 3 questions shown