When molecules of a gas or liquid move from greater concentration to a
lesser concentration through a selectively permeable membrane. This is
called.... *
Diffusion
Plasmolysis
Osmosis
Concentration gradient

Answers

Answer 1

Answer:

Osmosis

Explanation:

Osmosis is the diffusion of water or gas molecules, from a region of higher concentration to a region of lower concentration, through a partially permeable membrane

Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration.

Plasmolysis is the process of shrinkage or contraction of the protoplasm of a plant cell as a result of loss of water from the cell.

The difference in the concentration of a substance between two areas is called the concentration gradient.


Related Questions

how do you improve your mental health

Answers

Answer:

Talk about your feelings. Talking about your feelings can help you stay in good mental health and deal with times when you feel troubled.  

Keep active.  

Eat well.  

Drink sensibly.  

Keep in touch.  

Ask for help.  

Take a break.  

Do something you're good at.

Explanation:

The mass of a proton is the same as the mass of a neutron

True or false

Answers

Answer:

This statement is true.

Explanation:

Both protons and neutrons have a mass of one.

Hope this helps :)

Answer:

The proton and neutron have similar mass with the mass of the neutron slightly larger than that of the proton. Each of these particles has a mass approximately 1800 times greater than that of an electron. ... The atomic number of an element is equal to the number of protons in the nucleus of an atom of that element

Which of the following is NOT a unique property of water?
A. Ice floats on the surface of lake
B. Water covers most of Earth's surface
C. Water cools very rapidly
D. Water causes evaporative cooling

Answers

Answer:

Water covers most of Earth's surface

Explanation:

I chose Water covers most of Earth's surface because this is a fact, NOT a unique property. A property is a thing the item has.

a population of 100 insects that live in an area 100 square meters has a density of 1 insect per square meter. what’s this an example of?

Answers

population density...?

Question 2 of 10
Which of the following countries produces the most greenhouse gases?
A. Egypt
B. Greenland
C. France
D. United States

Answers

Answer:

The answer is D. United States

Explanation:

An earthquake occurs in which 'sphere?

Answers

Answer:it effects the biosphere and the hydroshere

Explanation: i learned this pls mark brainlist

Answer:

lithosphere

Explanation:

earthquakes are caused by shifts in the outer layers

hope that helps

Have a good day

Protozoa are usually found in _____.

the soil
the air
water
plants

Answers

Answer:

protozoa is usually found in water

water c brainist pls

A student is presented with a model of a digestive system and is asked to remove one structure (small or large organ) that will have the largest impact on decreasing chemical digestion. Which structure should the student remove

Answers

Answer:

Small intestine

Explanation:

Digestion is the process of breaking down food molecules into simpler and usable forms by the body cells. The process of digestion involved the mechanical aspect and chemical aspect. The mechanical one deals with using physical means like chewing to break down the food particles.

However, the chemical one deals with the usage of chemically-secreted enzymes to work on the food molecules. Lots of digestive organs are involved in this chemical digestion, but, the most of chemical digestion takes place in the SMALL INTESTINE. The small intestine is where most of the chemical digestion occurs including absorption.

Hence, according to this question, the student should remove the SMALL INTESTINE because it will have the largest impact on decreasing chemical digestion.

Which pair of structures would provide a positive identification of an animal cell under a microscope?

Answers

Answer:

lysosome, flagellum

Explanation:

Took the test & it was correct. See picture below.

What is a Metamorphic Rock?

rock that forms when existing rock changes to a new rock because of heat and pressure


rock that forms by the process of compaction and cementation of sediments


rock that forms when melted rock (magma, lava) cools and hardens


pls help

Answers

Answer: A) rock that forms when existing rock changes to a new rock because of heat and pressure ..hope this helped!

Explanation:

PLS PLS PLS HELP ME I NEED ThIS DONE FAST PLEASEEE


Directions Part TWO: Create a short story about your life as a droplet of water. Water can exist in many locations at any point in time. Pick any location or step of the water cycle to begin your journey. Your starting point could be a cloud, ocean, river, deep ground water etc. Choose a starting location and then fully explain with detail how you will travel throughout the entire water cycle. Be sure to include any changes in your heat energy along the way. You must include the following terms Evaporation, Condensation, Precipitation, Run-off, Collection, Deep groundwater, Increased heat energy, Decreased Heat Energy, Gas, and Liquid) Goodluck!!!


Its a simple assignment but i dont know what to say pls help me​

Answers

Answer:

It is very simple...

Explanation:

just answer it with your own thoughts of life....

Answer: Just look up water cycle images on the internet. You can also make it look like the water droplet is going through some hardships along the way.

What is a bacteria that is beneficial to humans and what does it do?

Answers

How will you react if I tell you that your body consists of 1 to 2.6 kg of bacteria? Shocked? Well, I can imagine your surprised face. Most people believe that bacteria are dangerous and are responsible for diseases and infections but this isn’t true. In fact the truth is, most of the bacteria are helpful in the functioning of a living body and are also capable of performing many other useful functions. These beneficial bacteria are present in huge numbers inside as well as outside our body. Well let’s check out various types of beneficial bacteria which not only help in proper functioning of our body but also contribute in many other functions in and outside the body. Some of the examples of helpful bacteria are Bifidobacterium, Rhizobium and E.coli.

Beneficial Bacteria – to Humans

Human body has millions of bacteria which participate in different functions of the body. As you know the amount of bacteria present in the body varies from 1 to 2.6 kg, this volume contains a huge number of bacteria. These bacteria can be present in all parts of the body but mostly they are found in the intestine where they help in the process of digestion. They also play a very important role in preventing bacterial infections in genital parts, like yeast infections. Some beneficial bacteria to humans are helpful in maintaining the pH of the body. Some are even involved in protecting the skin from many infections.

They are also helpful in the production of vitamin K and have an important role to play in the functioning of immune system. One of the most common bacteria which are helpful for humans is Escherichia coli. This bacteria is associated with the process of digestion. It is present in the large intestine where the maximum digestion takes place. These bacteria release enzymes which help in the process of digestion and synthesis of various vitamins and nutrients. Beneficial bacteria are also very helpful for the pregnant women. They reduce the chances of postpartum complications and also protects the baby from fungal infections.

Answer:

Probiotics are live bacteria that are good for us, that balance our good and bad intestinal bacteria, and that aid in digestion of food and help with digestive problems, such as diarrhea and bellyache. Bacteria that are examples of probiotics are Lactobacilli and Bifidobacterium.

Name the infectious agents can be good or bad for the human body and can even live skin

A. fungi
B. bacteria
C.parasites
D. viruses

Answers

Answer:

b

Explanation:

Explanation:

There are five major types of infectious agents: bacteria, viruses, fungi, protozoa, and helminths. In addition, a new class of infectious agents, the prions, has recently been recognized.

Hope this helps!

Give an example of how structure and function are related on the cellular level.

Answers

Answer:

Function and structure are related, because of a certain structure a living thing make contain makes the object function the way it does. ... The relationship of a structure and function is the structuring levels from molecules to organism ensure successful functioning in all living organism and living system

Explanation:

what if living cells released all their energy at once​

Answers

Answer:

they will lose their energy and die

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How might it be possible for your baby to show a trait that neither you or your mate has?

Answers

Answer:

it could be passed on from generations, even though if your mother or father doesn't have those traits

What statement is true about vines in the rainforest biome?
A) They grab onto several trees to gain access to sunlight.
B) They keep the structure of the canopy intact.
C) They can grow up to 3,000 ft long.
D) All of the above
PLS HELP ASAP

Answers

Answer:

D

Explanation:

Hope this helps you complete your question :)

Weak hydrogen bonds between the nitrogenous base pairs hold the two strands of DNA together. Why are the strands held together by weak hydrogen bonds instead of covalent bonds

Answers

Answer:

Explanation:

Hydrogen bonding is usually occur wen interaction with hydrogen atoms occur.

Hydrogen bonds joins DNA polymers because an hydrogen atom occur on on one base which is called hydrogen bond donors and another oxygen or nitrogen atoms on the base across from it which is called hydrogen bond acceptors.

Adenine “A” a purine and Thymine “T” a pyrimidine each have a donor and one acceptor, whereas Cytosine “C” a pyrimidine has one donor and two acceptors, and Guanine “G” a purine has one acceptor and two donors.

This atoms allows for hydrogen bond between them that gives them structure of DNA molecule.

A nucleotides is hydrogen bonded to T nucleotides while C nucleotides is hydrogen bonded to G nucleotide this is called complementary base pairing.

help, please. this is for a friend to help me with.

Answers

Explanation:

I hope this helpppppppppppp

Answer:

14. To cause cancer, proto-oncogenes require 2 allele(s) to be mutated and therefore are considered recessive. The mutation results in a gain of function.

15. To cause cancer, tumor suppressor genes require 2 allele(s) to be mutated and therefore are recessive. The mutation results in a loss of function.

Which process is identified by number 1 in the diagram and where in the cell does this process occur?
DNA
mRNA
Protein
1
2
O replication; during the cell cycle
O transcription; in the nucleus of the cell
translation; at the ribosome
transcription; at the ribosome

Answers

Correct answer - Translation, at ribosome.

Why? - In molecular biology and genetics, translation is the process in which ribosomes in the cytoplasm or endoplasmic reticulum synthesize proteins after the process of transcription of DNA to RNA in the cell's nucleus. The entire process is called gene expression.

The process is identified by number 1 in the diagram and where in the cell does this process occur is translation, at the ribosome. Thus option 3 is correct.

What is translation?

Translation is defined as the process by which a messenger RNA (mRNA) molecule's sequence is converted into an amino acid sequence during protein synthesis.

It is also be defined as when DNA is converted to RNA in the cell's nucleus, the process through which ribosomes in the cytoplasm or endoplasmic reticulum synthesize proteins. Gene expression refers to the entire process.

Initiation, elongation, and termination are the three phases of an mRNA molecule's translation by the ribosome.

Thus, the process is identified by number 1 in the diagram and where in the cell does this process occur is translation, at the ribosome. Thus option 3 is correct.

To learn more about translation, refer to the link below:

https://brainly.com/question/16746467

#SPJ6

Glycogen synthetase kinase 3 beta is a protein kinase that has been implicated in many types of cancer. Depending on the cell type, the gene for glycogen synthetase kinase 3 beta (GSK38) can act ether as an oncogene or as a tumor suppressor. Which of the following best predicts how GSK 98 mutations can lead to the development of cancer? A Cells with inactive GSK 38 fail to trigger apoptosis. B Cells with inactive GSK 38 fail to proceed past the G2/M checkpoint. с Cells with overactive GSK 98 are more likely to repair DNA damage. Cells with overactive GSK 38 have longer cell cycles.​

Answers

Answer:

A Cells with inactive GSK 38 fail to trigger apoptosis

Explanation:

Apoptosis is defined as the process of programmed death cell. Tumor cells are capable of evading apoptosis, thereby leading to uncontrolled cell proliferation. Glycogen synthase kinase 3 (GSK-3) is a protein kinase that phosphorylates serine and threonine amino acid residues on different substrates, thus activating different signaling pathways and having different biological functions. The GSK-3-mediated phosphorylation on different substrates may lead to the activation or inactivation of apoptosis depending on the cell type. Thus, GSK-3 has a dual activity and functions as a tumor suppressor and oncoprotein.

Why does the body produce more urine on a cold day rather than a hot day if the same amount of
water is consumed?

Answers

Explanation:

During summer when the surrounding temperature is high, we lose water in the form of sweat, direct evaporation considerably. Hence kidneys retain water for maintaining fluidity of the blood and less urine is formed.

But during winter, the surrounding temperature will be very low. There will not be any sweating, no evaporation losses. Moreover to keep the body temperature constant, the blood capillaries in the skin get constricted and the blood pressure is increased. The result is that our body gets warmed up. In order to maintain the blood pressure normal, the excess water along with the wastes is excreted mostly in the form of urine. This is the reason for more urine out put and frequent urination under very cool conditions and in winter.

Some genes are important enough to be called "molecular switch" or "master" genes. What is the purpose of these genes?

A. They control when other genes are expressed
B. They determine the organization of the genome
C. They regulate cell metabolism
D. They modulate the rate of translation

Answers

Answer:

Genes called "molecular switch" or master genes have the purpose of control when other genes are expressed (option A).

Explanation:

Master gene is so named because it has the function of controlling the behavior of other genes, organizing their functions and regulating when they can be expressed.

The name of molecular switch is synonymous with the master gene, since its activation determines the genetic regulation necessary to establish cell differentiation and even the determination of the sex of some species.

The other options are not correct because:

    B. Master genes do not determine the organization of the genome .

    C. Regulation of cell metabolism depends of substances as hormones and enzymes.

    D. The rate of translation does not depend on the activity of master genes.

Delia is teaching her sister about important molecules in the body.
She tells her sister that one molecule provides a set of instructions that determines traits, such as eyecolor or hair color. Which molecule is Delia describing?
Pls help !!

Answers

Answer:

answer is A

Explanation:

The diagram models the collision of India with the Eurasian plate. Way crustal feature began forming 10 million years ago when India collided with the Eurasian plates?

Answers

Answer:a mountain range

Explanation: because when when they crashed it created a mountain range

Answer:

B  

when they crashed it created a mountain range

what would most likely indicate that
there are microscopic animals present in pond water

Answers

Answer:

Some of the organisms that can be found in pond water include:

Arthropods.Bacteria.Protozoa.Hydras.Algae.

Which mechanism of transport takes place without expending cellular energy?

Active
Hypotonic
Isotonic
Passive

Answers

Passive 123456799483762

Answer:

c

Explanation:

what is the effect of glucagon?​

Answers

The effect of glucagon can get you nausea, vomiting, headaces, rhinorrhea and nasal pain.

How does the article "Caring for Vets Should Be National Duty," develop the central ideas that nonprofit organizations are helping veterans and that the government should take more responsibility for caring for veterans? By listing examples of nonprofit organizations and explaining how these organizations work with the government by explaining how the nonprofit organizations raise funds for veterans and describing how government programs are funded by explaining that one nonprofit has been helping veterans for over a decade and emphasizing that the government should be doing more by describing how services provided to veterans by nonprofit organizations differ from those provided by the government and stating the government services are inferior

Answers

Answer:

here you go this is just for confirmation

Explanation:

By explaining that one nonprofit has been helping veterans for over a decade and emphasizing that government should be doing more.

What are non-profit organizations?

A non-profit organization is a group that was established with the intention of making a profit, and in which no part of the organization's revenue is given to its directors, officials, or members.

Donations, grants, and membership fees are how non-profit organizations make money. Additionally, they might make money by selling branded goods. Rent or mortgage payments are examples of costs incurred by non-profit organizations.

Examples of non-profit organizations are foundations, fraternal societies, civil leagues, social clubs, recreational clubs, charitable organizations, local employee associations, etc.

Learn more about non-profit organizations, here:

https://brainly.com/question/29791251

#SPJ6

Which characteristics do birds and mammals share? Check all that apply.

Both give birth to live young.
Both are endotherms.
Both have hair or fur.
Both produce milk to feed their young.
Both are vertebrates.

Answers

Answer:

B). Both are endotherms

Explanation:

Both birds and mammals are warm-blooded, which is the meaning of endotherm.

Hope this helps!

~PurpleMist

Answer: B

Explanation: brainlest

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