In an experiment, a small dialysis bag is filled with a 20% salt solution. It is placed in a
beaker filled with a 40% salt solution. Assuming that water can pass through the
small pores of the dialysis bag, whereas the large salt molecules cannot, what will
happen to the size of the dialysis bag?

Answers

Answer 1

Answer:

The bag will get smaller

Explanation:

Osmosis can be defined as the process of diffusion or movement of water molecules across a semipermeable membrane from an area of higher concentration of water (i.e., lower concentration solution) to a lower concentration of water. For example, in cells, there are specialized pores called 'aquaporins' which are membrane proteins that form channels to transport water molecules by facilitated diffusion. In this case, the outside of the bag has a higher salt concentration than inside, thereby water molecules will move by facilitated diffusion through pores from inside to outside the bag.


Related Questions

If there is an increase in stimulation by the sympathetic nervous system

Answers

May i know the complete sentence?

Why do you think it’s a challenge to reduce fossil fuel usage in homes in the United States? How could the use of fossil fuels affect the biodiversity in neighborhoods and the surrounding ecosystems?

Answers

Answer:

Well,for starters fossil fuels have been there since the beginning of the country's life style in using it.Eg;for household used such as cooking.

Explanation:

The used of fossils may affect the surrounding biodiversity,and ecosystem due to the amount of Carbon Dioxide they emitted when being lit,which contributes to Ozone Depletion,and other global issues

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Answers

Answer:

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write the function of eustachian tube?

Answers

Answer:

Equalized air pressure.

Explanation:

The function of eustachian tube enables air pressure to be equalized between the outside air and the middle ear cavity. The eustachian tube also known as pharyngotympanic tube that connects the middle ear cavity with the nasopharynx. Eustachian tube is responsible for the aeration of the middle ear system as well as clears mucus from the middle ear into the nasopharynx. Opening and closing functions of the eustachian tube are is very important.

Albinism is a recessive trait where an individual does not produce the pigment melanin. A man and woman who both produce melanin have one child out of three who has albinism. What are the genotypes of the man and woman

Answers

it’s just because the answer is this melanin both of them have it

Albinism is a recessive trait where an individual does not produce the pigment melanin. Albinism is an autosomal disease where the gene which is expressed here is having albinism which is the cause of heterozygous condition.

What is the heterozygous ?

Heterozygous is the condition where the genes in the alleles are different to each other where one has a dominant character and one has a recessive character. The genotypes of the woman and man decide the genotype of the offspring.

The genotypes of the man and woman is heterozygous where the dominant once out of 3 will have the dominant traits for the albinism. The condition will have to be heterozygous as in the Ia Ii gene where the gene for the albinism   will be i gene.

The same genotype for the male where the Ib i gene in which i i the albinism carrying gene here the ii condition of the gene will express the albinism.

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The area is the brain the controls, temperature, metabolism and water/electrolyte balance is called?

Answers

Answer:

The Hypothalamus

Answer:

Hypothalamus

Explanation:

Who was Dr. Joseph Bell?

Answers

Answer:

Sherlock Holmes

Explanation:

He was the inspiration. Not the actual Holmes.

Answer:

Joseph Bell  (2 December 1837 – 4 October 1911) was a Scottish surgeon and lecturer at the medical school of the University of Edinburgh in the 19th century.

why is it important to record all data and procedures in an experiment?

Answers

Answer:

Answer:important to record all data and procedures because if we list that data then we can see that which we record

hope this will help you

Answer:

Good record keeping can help user to track errors or refine an experiment.

Records can be used to audit or to check data integrity

what is the minimum weight that requires 2 people to lift a dog​

Answers

In a perfect world, a "safe" lift would be 51 pounds i think, not sure tho sorry

What is physiological?

Answers

relating to the branch of biology that deals with the normal functions of living organisms and their parts.
The above answer is correct

Hola, necesito ayuda con este ejercicio. Regalo 70 puntos, 5 estrellas y corazón.

Answers

Respuesta corta: Produciendo un sentimiento de satisfacción.

Explanation

En el texto se hace referencia a una investigación para analizar la relación entre las redes sociales y el cerebro de los adolescentes. Para ello los investigadores utilizaron imágenes magnéticas del cerebros de los 32 adolescentes estudiados. Una vez terminaron el estudio se dan cuenta que "una estructura del cerebro, llamada núcleo accumbens, se activa más cuantos más likes tuviera una imagen". Además, el autor del texto agrega que "Esto es interesante si se tiene en cuenta que este órgano nervioso es el responsable de que experimentemos momentos de placer intensos al ganar un premio, comer helado, etc". De acuerdo a lo anterior se puede interpretar que las redes sociales influyen en el cerebro de los adolescentes debido a que produce en ellos un sentimiento de satisfacción o reconocimiento a recibir "likes" de otras personas. Además, este sentimiento se puede interpretar como aprobación por parte de las demás personas.

nucleotides are the basic
unit for which macro molocules

Answers

The correct answer to question is Nucleic Acids, (DNA) AND (RNA).  

hope this helps let me know.

i’m sorry i don’t know the answer this

Which of these actions is likely to prevent the spread of pathogens in the environment?

Washing hands once a week
Coughing out loud
Touching wounds
Washing fruits

Answers

Washing fruits because by washing you will decrease the bacteria’s

Answer:

A or D

Explanation:

Coughing out loud  and Touching wounds will spread it, not prevent it, Its most likely D, because only washing your hands once a week is basically useless and will prevent little- to nothing so washing fruits is your best bet I would go with D

Part B
Next, our galaxy can be organized into a galaxy group. This galactic group is a collection of about 50 galaxies that are
gravitationally bound to each other. What is the name of the galaxy group in which our galaxy belongs? As you are
researching, list at least three characteristics that you learned about our galaxy group.

Answers

Answer:

The Milky Way galaxy is part of a group of galaxies called the Local Group. Three characteristics that I learned about our galaxy group is The Milky Way is a large barred spiral galaxy, they come in a variety of shapes and sizes, and  it appears as a milky band of light in the sky when you see it in a really dark area.

Explanation:

Edmentum

The Milky Way galaxy is a member of the Local Group of galaxies named Laniakea . The Milky Way is a massive barred spiral galaxy and  can be seen as a milky band of light.

What are the characteristic feature of the Milky Way?

The Milky Way galaxy is a massive, flat, disk-shaped collection of stars, gas, and dust that spans around 100,000 light-years and is several thousand light-years thick.

The Milky Way galaxy contains every star that we can see with our unaided eyes. The Andromeda Galaxy is the only celestial object visible in the night sky with unaided eyes that is not part of the Milky Way.

It is estimated that the Milky Way is 12 billion years old.

Thus, Milky Way is the galaxy we live in amongst others.


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Which two physical properties of graphite make it a good mineral for use in pencils?
1. luster and fracture
2. cleavage and color
3. hardness and streak
4. greasy feel and composition

Answers

The answer is 3 3 3 3

The physical properties of graphite which makes it good for pencils is ;  

( 3 ) hardness and streak

Graphite is made up of carbon atoms which are held together by van der waals forces ( weak force ). They are soft and slippery which is why graphite is used in the manufacture of  lubricants. while graphites are used for the manufacture of writing materials such as pencils because of its hardness and streak

Hence we can conclude that the physical properties of graphite which makes graphite good for the production of pencils are hardness and streak

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12. What would be the other strand of DNA?
-A T C C G A A GTC C GA G-

Answers

Answer:

TAGGCTTCAGGCTC

Explanation:

The complementary base of Adenine is Thymine in a DNA strand but it is Uracil if it's a Mrna strand

then the complementary base of cytosine is therefore guanine

The eurkaryotic cells glycocalyx is..?

Answers

Explanation:

The glycocalyx is a carbohydrate-enriched coating that covers the outside of many eukaryotic cells and prokaryotic cells, particularly bacteria .

What is the role of DNA polymerase enzymes in replication?

(A) unzipping the double helix by breaking down the hydrogen bonds

(B) adding the free nucleotides to the complementary strand of DNA

(C) splitting the DNA molecule

(D)connecting the fragments on the lagging strand of DNA

Answers

Answer:

A

Explanation:

the function of DNA polymerase is to unzip the double helix structure of DNA by breaking down the weak hydrogen bond

Answer:

(B) adding the free nucleotides to the complementary strand of DNA

Explanation:

A DNA polymerase is an enzyme capable of creating new DNA molecules by sequentially adding nucleotides to the three prime (3')-end of a DNA strand. A DNA strand is a polynucleotide chain composed of a linear series of nucleotides, each consisting of a deoxyribose sugar, and phosphate, and a base (i.e., thymine, guanine, cytosine and adenine). Before a cell starts to divide, it needs first to replicate its genetic material by using DNA polymerases that duplicate the cell's DNA during the interphase (S phase). During this process (DNA replication), an enzyme known as helicase unwinds the DNA molecule, which is made up of two antiparallel strands oriented in opposite 3′-5′ directions to each other. Subsequently, each strand is used as a template for its replication through DNA polymerases that can add nucleotides (one at time) to an existing short fragment of RNA, i.e., the primer sequence, which is paired with the template DNA strand.

how does Fibrocartilage receive it's nutrients?

Answers

Answer:

These cells receive nutrients through a double diffusion barrier but rely on anaerobic respiration due to low oxygen concentration.

ethyl methane sulfonate is a chemical mutagen that modifies bases in DNA this agent causes c to be mutated to

Answers

Ethyl methane sulfonate is a chemical mutagen that modifies bases in DNA. This agent causes C to be mutated to T

If Sarah had skin vesicles on the anterolateral region of her neck, which peripheral nerve is infected by the virus? To which peripheral nerve plexus does this nerve belong

Answers

Answer: transverse cutaneous nerve

- cervical plexus

Explanation:

The peripheral nervous system refers to the network of the motor and the sensory nerves which helps in connecting the brain and spinal cord to the entire human body. The peripheral nerves control movement, sensation, and motor coordination.

If Sarah had skin vesicles on the anterolateral region of her neck, the peripheral nerve affected is the transverse cutaneous nerve. The transverse cutaneous nerve innervates the skin which covers the anterior cervical region and it brings to the cervical plexus.

A suspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. To follow this process by monitoring the release of CO214, at which positions in the glucose molecule would the C14 label need to be incorporated

Answers

Answer:

carbons 3 and 4

Explanation:

Alcoholic fermentation is an anaerobic (non-oxygen-requiring) pathway capable of converting one mole of glucose (C6H12O6) into two moles of ethanol (C2H5OH) and two moles of carbon dioxide (CO2), producing during this process two moles of ATP. The overall chemical reaction is as follow: C6H12O6 (glucose) >> 2 C2H5OH (ethanol) + 2 CO2.  During this process (fermentation), energy is obtained from the glycolysis process by which each glucose molecule is broken down into two pyruvate molecules (2 CH3COCOO−). Pyruvic acid is an organic acid that ionizes to produce a hydrogen ion and a molecule of pyruvate. Subsequently, this pyruvate is then converted into ethanol and CO2, generating NAD+, i.e., the oxidized form of nicotinamide adenine dinucleotide or NAD, which is required for glycolysis (and therefore to produce ATP). Moreover, dismutation refers to the redox reaction by which one compound with an intermediate oxidation state converts into two compounds. In consequence, the CO2 generated during fermentation arises from the dismutation of pyruvic acid. During this process, the major source of CO2 is carbon 3 (C3) and carbon 4 (C4) of the glucose as a result of the dismutation of pyruvate, and thereby these positions in the glucose molecule would the C14 label need to be incorporated.

g An Hfr strain is produced when Select one: A. an F episome is transferred to a new cell. B. an F episome leaves the E. coli chromosome. C. an F episome leaves the host chromosome and removes some of the host chromosome. D. an F episome integrates into the E. coli chromosom

Answers

Answer:

A. an F episome is transferred to a new cell.

Explanation:

Hfr strains arise from the integration of the plasmid into the bacterial cell in one of several ways such as the recombination of events. Most commonly are formed by the UV-induced integration of E coil F factor. It tries to transfer a copy of the F factors as well the entire chromosome to the recipient bacterium.

How are meiosis and mitosis different?

Answers

Answer:

b. only meiosis results in a reduction in chromosome number

Explanation:

Flows of energy and cycles of nutrients link the biotic and abiotic components of ecosystems into a/an __________ system, ultimately structuring the feeding relationships, or __________ structure of organisms that inhabit them.

Answers

Answer:

The correct answer is - dynamic and trophic.

Explanation:

A/an dynamic system is linked to lows of energy and cycles of nutrients link the biotic and abiotic components of ecosystems that structure the feeding relationships, or trophic structure of organisms that inhabit them. The trophic structure is the position of the organism in the ecosystem and food chain.

The correct answer is - dynamic and trophic.

__________________ moves the respiratory medium over the respiratory surface.

Group of answer choices

perfusion

percolation

ventilation

diffusion

Answers

Answer:

ventilation

Explanation:

Breathing, also known as ventilation, is the process of moving air or water in order to facilitate the gas exchange between the external and internal (body) environment, mostly to eliminate carbon dioxide (CO2) and bring in oxygen (O2). For example, fish are aquatic animals that need to run water over their gills to get the O2 that they need to survive (gills are organs that create a large surface area for ventilation). Moreover, insects ventilate their tracheal system to get O2. Finally, terrestrial vertebrates (i.e., amphibians, reptiles, birds, and mammals) use organs called lungs to exchange O2 and CO2 between their cells and the external environment.

How the aging is related with the methylation? The methylation increase or decreased ?

Answers

Aging is strongly correlated with changes in DNA methylation. DNA methylation and epigenetic alterations have been directly linked to longevity in a wide array of organisms, ranging in complexity from yeast to humans.

What is the closest crop relative of Aloe vera?

Answers

Answer:

lily

Explanation:

aloe perryi

i’m not 100% sure try researching

Describe how oxygen is transported in blood, and explain how temperature, pH, BPG, and affect oxygen loading and unloading.

Answers

Solution :

The flow of oxygen in the blood is been transported by two ways :

1. in plasma 1.5%

2. bound to hemoglobin 98.5%

As the oxygen loads in the body, affinity of the Hb makes the oxygen loading very efficient in the blood. The Hb molecule gets saturated when all the 4 hemes are oxygen binded.

The decreased pH weakens the hemoglobin oxygen binding in the tissues.

Higher temperatures in the oxygen means a lower affinity and thus more oxygen is released and so the oxygen unloads.

Increase in the temperature, the BPG and the modification of the structure in the hemoglobin decreases the affinity for the oxygen and further enhances the unloading of the oxygen in the blood.

"During cytokinesis of an animal cell, a cell plate grows from the center moves outward"
True
False

Answers

Answer:

True

Explanation:

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