Explain how a semi-permeable membrane works.

Answers

Answer 1

Semipermeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion—or occasionally by more specialized processes of facilitated diffusion, passive transport or active transport.


Related Questions

Why is biodiversity important?

Answers

Answer:

Biodiversity is important to humans for many reasons. Ecological life support biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services

can somebody help me??

Answers

I think that part is a mitochondrion, in which:

The process that the mitochondrion performs is that it generates energy for the cell (also known as the powerhouse of the cell).

The two raw materials the mitochondrion needs are oxygen and a precursor of some sort, whether is be sugar or carbohydrates.

The molecule generated by the mitochondrion is called ATP, or adenosine triphosphate, this molecule is important because it allows the cells to work and function, ultimately resulting in the organism being able to live.

Also btw mitochondrion is singular and mitochondria is plural.

Hope this helps!

Nonresistant starch is normally completely digested, and then absorbed into the bloodstream through the wall of which digestive organ? (From Gizmo)

Options (Only choose one):
stomach
large intestine
small intestine
esophagus

Answers

Small intestine.
The body completes the breakdown of proteins, and the final breakdown of starches produces glucose molecules that absorb into the blood

The sun converts nuclear energy into what type of energy?

Answers

Answer:

i would say chemical but if im wrong im super sorry!!

Explanation:

Construct an argumentative paragraph. Do you believe it's ethical or unethical to artificially select traits in plants and or animals? Provide evidenco to suoport your claims. It doesn't matter what side you chose, but I need it asap.​I will give you any mark you want.​

Answers

Answer:

The ethics of artificially inserting traits in animals has been in the practice for years in the form of selective breeding, but should scientists really be editing DNA to the extent they are today? I don't believe they should. Life itself should construct itself without us interfering. Making a brand new plant just because it looks nice doesn't account for many factors, including the fact that it could be harmful to nearby plants if pollinated. In addition, generic engineering costs quite a lot of money, which should be used on other more cost effective methods, such as improving agriculture rather than creating a whole new plant that could harm entire crops. Genetic engineering isn't a necessity and humans should not play God with plant and animal life.

true or false: the results of pollination are shown inside the punnett square​

Answers

Answer is false hope this helps

1. DNA 2. Helicase 3. DNA Polymerase 4. DNA Replication 5. Pyrimidine a. Double stranded molecule that has a deoxyribose sugar. b. The end-product of this process are two identical copies of DNA. c. Enzyme that breaks hydrogen bonds to unwind and unzip DNA. d. Nitrogen containing base that has a single ring as its molecular structure. Thymine and Cytosine are an example of this type of molecule. e. Enzyme that covalently bonds sugars and phosphates during DNA replication.

Answers

Answer:

1. DNA-A.Double stranded molecule that has a deoxyribose sugar.

2. Helicase- C. Enzyme that breaks hydrogen bonds to unwind and unzip DNA

3.DNA Polymerase- E. Enzyme that covalently bonds sugars and phosphates during DNA replication

4.DNA Replication-B. The end-product of this process are two identical copies of DNA.

5.Pyrimidine-D. Nitrogen containing base that has a single ring as its molecular structure. Thymine and Cytosine are an example of this type of molecule.

Explanation:

How can you determine the number of bonds an atom can make

Answers

Answer:

The number of bonds for a neutral atom is equal to the number of electrons in the full valence shell (2 or 8 electrons) minus the number of valence electrons. This method works because each covalent bond that an atom forms adds another electron to an atoms valence shell without changing its charge.

What are some factors that can cause observed evolutionary change?

Answers

Answer:

There are four such forces: mutation, gene flow, genetic drift, and natural selection.

Explanation:

Answer:

natural selection, random genetic drift, mutation, population mating structure, and culture.

Explanation:

I hope this helps! ^^

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if a middle level species were removed from the community, how might the flow of energy be affected? Explain your answer.

Answers

There will be far-reaching effects. If for example, the producer is removed, the consequences could be dire. Producers capture sunlight directly and make chemical energy for consumers. If this is the only producer that a particular consumer eats, it may die as well.

I hit a substance with a hammer and it shatters.It is a

Answers

Answer:

non metal ,so it is brittle in nature

help me out girlies its due

Answers

the stereotype is that all australians are some sort of zookeepers? and wear clothes like that. also that they drink beer a lot.

Answer:

the stereotype is that all australians are zookeepers? and wear clothes like that.

Explanation:

What would happen to the production of the high energy sugars if water or carbon dioxide were not
available to plants?
ATD

Answers

Answer:

There would be no production of high energy sugars in the plant.

Explanation:

Plants produce their food (autotrophism) in a process unique to them called PHOTOSYNTHESIS. Photosynthesis is the process whereby plants produce energy-storing sugars (glucose) in the presence of light from sun.

This photosynthetic process combines Carbon dioxide (CO2) and water (H2O) as reactants to form sugar (C6H12O6) and oxygen (O2) as products. The equation for photosynthesis is as follows:

6CO2 + 6H2O → C6H12O6 + 6O2

This means that water and carbon dioxide are strictly needed for the process of photosynthesis to occur in plants. Hence, if water or carbon dioxide were not available to plants, there would be no photosynthetic process and ultimately no production of high energy sugars.

What does the temporal lobe and Cerebellum do?

Answers

Answer:

The temporal lobes are also believed to play an important role in processing affect/emotions, language, and certain aspects of visual perception.

The cerebellum is busy planning, adjusting and executing movements of the body, the limbs and the eyes.

Explanation:

The vocal cords stretch across the opening of the larynx. True or false??

Answers

Answer:

True

Explanation:

Vocal cords are bands of smooth muscle tissue located in the larynx. When air passes through, the vocal cords vibrate.

Answer: True

Explanation:

The vocal folds, also known popularly as vocal cords, are composed of twin infoldings of mucous membrane stretched horizontally across the larynx. They vibrate, modulating the flow of air being expelled from the lungs during phonation.

Can someone help me with this chromosome assignment?

Answers

this is the answer for only first page.

homologous, diploid,gametes,haploid

the same thing as what the other person said.

di=2

hap=1

remember that for diploid and haploid

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How do living organisms maintain homeostasis within their bodies?

Answers

Answer:

The body regulates those levels in an example of homeostasis. When levels decrease, the parathyroid releases hormones. If calcium levels become too high, the thyroid helps out by fixing calcium in the bones and lowering blood calcium levels. The nervous system helps keep homeostasis in breathing patterns.

Explanation:

Hope this helps :)) Please mark brainliest :))

Answer:

Look below.

Explanation:

They maintain homeostasis by regulating temp, glucose, toxins, blood pressure, and pH.

Fill in the blanks the world banks the word bank is on the picture provided below :)

Answers

Answer:

1 is pioneer species 2 is limiting factor 3 is ecological succession

Explanation:

Answer:

1) pioneer

2) limiting factor

3) ecological succession

Which feature of chytrids makes them different from the other types of fungi? the material that strengthens their cell walls the special digestive material they release their use of budding to reproduce their ability to live in dry environments

Answers

Answer:

the material that strengthens their cell walls

Explanation:

Chytrids originate from the kingdom fungi and a division known as Chytridiomycota. They contain a feature of unique characteristics by the presence of the chitin and the cellulose cell wall. The chitin made up the component of their cell wall in fungi but in Chytrids, the cellulose helps to strengthens their cell walls.

Answer:

A. the material that strengthens their cell walls

Consider two individuals that have the following genotypes: CCDd and Ccdd.
Predict the outcomes of a cross for these two individuals. What are the outcomes that could occur in the offspring? Select ALL that
apply.
A)
1/4 of the offspring will be CCdd.
B)
ccdd is not possible as an outcome of this cross,
All of the offspring will show the dominant trait for the allele.
D)
Only half of the offspring will show the dominant trait for the Dallele.
E)
All of the offspring will be heterozygous and will display the dominant
traits

Answers

Answer:

A,B,C,D

Explanation:

Since one parent is CC, there is no way to get cc as an outcome from this cross. However, there is also no way that all of the offspring will be CcDd, which is heterozygous for both traits. Therefore, this is the only answer choice that is incorrect.

As per observation about the  two individuals that have the following genotypes: CCDd and Ccdd the cross are options: a,b,c,d.

Since one parent is CC, there may be no manner to get cc as an final results from this cross. However, there may be additionally no manner that every one of the offspring could be CcDd, that is impure breed for each traits.

What is genotype ?

Genotype is an individual's series of genes. The time period can also talk to the 2 alleles inherited for a specific gene. The genotype is expressed while the statistics encoded within side the genes' DNA is used to make protein and RNA molecules.

Thus it is clear that all the observations are correct.

To learn about genotypes refer to the link ;

https://brainly.com/question/2235939

Which geological feature would most likely occur at this boundary? (the plates are the same density.)

A) mid-ocean ridge, rift vallyes
B) earthquakes
C) volcanos
D) mountain chains

Answers

A

mid ocean ridges occur along divergent plate boundaries

Answer:

a

Explanation:

Help me please, I’m confused

Answers

Answer:

Photosynthesis-

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities. Photosynthesis occurs in the chloroplast of a plant, which contains chlorophyll. In order for photosynthesis to take place, it needs to have water and carbon dioxide, the two very important raw materials necessary for this process. In the presence of carbon dioxide, such cells are able to convert this solar energy into energy-rich organic molecules, such as this energy-rich molecule known as glucose. Oxygen the by product of photosynthesis is inhaled by heterotrophs which aids in cellular respiration and other internal processes and then exhales carbon dioxide. ... In like manner, carbon dioxide passes from blood to the alveoli and exhaled after

Explanation:

NEED HELP ITS DUE AFTER MY WINTER BREAK!

Answers

Answer:

For question 1 the answer is respiratory, and for question 2 is circulatory

Answer: (1) Circulatory (2) Respiratory

Sloths spend most of their time living in trees. They are considered __________ animals.
A)
folivorous
B)
epiphytic
C)
zoning
D)
arboreal
E)
browsing

Answers

The answer is D) arboreal
I believe the correct answer is D. Arboreal

A cell containing 20 chromosomes undergoes mitosis, each daughter cell will have 20 chromosomes
a.True
b.False

Answers

Answer:

the answer is true because a cell containing 20 chromosomes undergoes mitosis, each daughter cell will have 20 chromosomes

Virtual Lab
Active
Create a dichotomous key.
O
Magnifying Glass
Drag your question here.
Legs
Wings
Antennae
Stinget
Claws
Please help

Answers

Answer:

WHAT ARE YOU TRYING TO ASK BRO

WILL GIVE BRAINLIEST

DNA molecules are the instructions to make what?

-proteins

-carbohydrates

-lipids

-plasmids

Answers

Answer:

A

Explanation:

DNA is used to make mRNA, which is then used alongside tRNA to make a polypeptide chain. This chain folds to make a protein.

in which Domain & Kingdom would scientists classify an organism, whose cells contain a nucleus, has cell walls made of chitin, and does not have chloroplasts?

Answers

Answer:

The correct answer is -

Domain: eukarya

kingdom: fungi

Explanation:

A cell with a nucleus and cell wall made up of the chitin and does not have chloroplast, are all the characteristic features of an organism of kingdom fungi which is a group of eukaryotic organisms.

The cells with the nucleus are grouped in the domain eukarya while the prokaryotic organism does not carry a nucleus in their cell and divided into Archaea and bacteria. The chitinous cell wall without any chloroplast in the cell is one of determining features of the fungi kingdom.

Please help!!!! Grizzly bears and polar bears are very closely related, so much so that they can reproduce to form hybrid offspring. Use your understanding of natural selection to describe how polar bears became a separate classification from the grizzly.

Answers

Scientists believe that at first these bears scavenged seal carcasses that had washed ashore, and gradually began to hunt the seals by waiting at the water's edge as the seals surfaced to breathe. This is believed to be an important step in the evolution of a new bear species, the polar bear

Over time the new polar bears were used to the cold climate and learnt how to fish, they then separated from the grizzly bears, they developed new creatures which would help them survive in one of the most dangerous climate.

Polar bears become separate classification from the grizzly by the natural selection known as divergent and adaptive evolutionary change.

Polar bears and grizzly bears are considered as closed to one another so they can interbreed. They both diverged from one another due to the harsh climate of the Arctic and the ecology of the region.

The changes that took place are camouflaging and pigment-free fur-coat that helped them in order to adapt to the different climates.The genetic mutation leads to such Adaptive changes when the polar bears migrated northwards.The populations living in different climates undergo natural selection that is divergent natural selection and the adaptive evolutionary changes that result in different species.

Learn more about speciation:

https://brainly.com/question/4493180

which statement best describes the difference between the sympathetic and parasympathetic nervous systems?

Answers

Parasympathetic system calms you down lets all your organs have the same amount of oxygen delivered. The sympathetic system gets your muscles moving and makes you excited.

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