2. When diffusion has reached equilibrium, we say that
the net movement of the molecules is zero. Does this
mean these molecules below would stop moving?
Answers
Answer:
See Below.
Explanation:
The key word here is net. The net movement has reached zero when a system is in equilibrium but there are still motion's going back and forth due to statistics and just random brownian motion.
Think of it this way, if there are 100 people walking forwards in a crowd but 2 are moving against the crowd, the net movement is still forwards because the bulk of people are going in that direction. However, there are still 2 people moving against.
Same here, if we are talking about a diffusion, let's say in the case of osmosis, if most of the solute is moving across a membrane then we'd say its net direction is that way but that doesn't mean that there aren't processes happening in the other direction. Water molecules in osmosis mostly diffuse, chemically speaking (because you can say this biologically in a different way), from the probability of water molecules colliding with each other and passing the membrane so even if there is a net movement in a certain way their random motion can make them go to the other side just as well. If the fact that motion stops at equilibrium were the case a lot of systems, both chemical and biological, would not exist as we know it.
Think net = bulk NOT total or entire.
When the net movement is Zero at equilibrium ; An insignificant number of molecules are still moving below
When diffusion reaches equilibrium most of the molecules moving from the areas of higher concentration to areas of lower concentration will stop moving, but a negligible number of molecules will continue to move due to random Brownian motion.
When we say the net movement of molecules at equilibrium is zero it is because majority of the molecules have stopped moving and not all the molecules therefore there will be an insignificant movements of molecules still occuring.
Hence we can conclude that When the net movement is Zero at equilibrium ; An insignificant number of molecules are still moving below
.
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Related Questions
How are soluble food molecules absorbed into the epithelial cells of the small intestine
Answers
Soluble food molecules are absorbed into the epithelial cells of the small intestine through the process of diffusion and active transport.
HOMEWORK! What do these mean?
Answers
So biodiversity is the different and varied living things such as animals and plants that lives on earth
Example Mechanism of evolution
1. As habitats change, populations of northern pine trees that were once separated can now exchange pollen. This exchange of genes between populations is allowing the previously isolated gene pools to mix. The mechanism of evolution is _______.
2. A sudden volcanic eruption kills many members of a population of elk. By chance, the individuals that remain do not have the same mix of genes as the original population. The mechanism of evolution is _______.
3. Although millions of prairie chickens once roamed the Midwest, their numbers dwindled to only 50 individuals in the 1990s. These few individuals have since produced a larger population. The genetic variation among the current population is quite low. The mechanism of evolution is _______.
4. Insecticide resistance among mosquitos is spreading around the world after mutations that originate in one population are spread to other populations through matings. The mechanism of evolution is ______.
5. Researchers discovered that female gray tree frogs prefer to mate with males who sound the longest mating calls. The mechanism of evolution is _______.
6. Tristan da Cunha is a remote island in the Atlantic Ocean. In 1814, 15 people formed a colony there, one of whom carried a rare gene for blindness. The frequency of this gene is now 10 times higher on the island than on the mainland from which the settlers arrived.
Answers
Answer:
what ru saying?
Explanation:
An individual is heterozygous for a particular gene. Which of the following is true of this individual?
Answers
which system is responsible for preventing pathogens from disturbing homeostasis?
Answers
Answer:
The immune system protects the host from pathogenic organisms (bacteria, viruses, fungi, parasites). To deal with this array of threats, the immune system has evolved to include a myriad of specialised cell types, communicating molecules and functional responses.
Explanation:
select the accurate statement about water potential.
Answers
Water always moves from areas of high water potential to areas of low water potential, and the water potential of a system can be influenced by factors such as solute concentration, pressure, and temperature.
Water potential is a measure of the potential energy of water in a system compared to pure water at standard conditions, which has a water potential of zero. It determines the direction and rate of movement of water within a system. The following statement accurately describes water potential:
The higher the solute concentration in a system, the lower its water potential, meaning that water is more likely to move from an area of higher water potential to an area of lower water potential. Additionally, pressure can also affect water potential, with positive pressure increasing water potential and negative pressure decreasing it.
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Your question seems incomplete. I could not find the exact question details online so I answered in general.
which erythrocyte metabolic pathway generates adenosine triphosphate (atp) via glycolysis? group of answer choices embden-meyerhof hexose monophosphate rapoport-luebering methemoglobin reductase
Answers
The Embden-Meyerhof pathway is the erythrocyte metabolic pathway that generates adenosine triphosphate (ATP) via glycolysis.
Erythrocytes, also known as red blood cells, rely on glycolysis as their primary metabolic pathway for generating ATP, which is essential for their energy needs. The Embden-Meyerhof pathway, also referred to as the glycolytic pathway, is responsible for ATP production through glycolysis in erythrocytes.
In the Embden-Meyerhof pathway, glucose is converted into two molecules of pyruvate through a series of enzymatic reactions. These reactions occur in the cytoplasm of the erythrocytes. During glycolysis, a net gain of two molecules of ATP is produced through substrate-level phosphorylation. This ATP generation is crucial for maintaining the energy requirements of erythrocytes, as they lack mitochondria and rely solely on glycolysis for ATP production.
The other answer choices provided, such as the hexose monophosphate pathway, Rapoport-Luebering pathway, and methemoglobin reductase, are not directly involved in ATP generation via glycolysis in erythrocytes. The hexose monophosphate pathway is involved in the production of reducing equivalents (NADPH), which are necessary for maintaining the cell's antioxidant capacity. The Rapoport-Luebering pathway is responsible for the production of 2,3-diphosphoglycerate (2,3-DPG), which plays a role in regulating oxygen release from hemoglobin. Methemoglobin reductase is an enzyme involved in the reduction of methemoglobin, a non-functional form of hemoglobin. None of these pathways directly contribute to ATP generation via glycolysis in erythrocytes, making the Embden-Meyerhof pathway the correct answer.
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analyze the movement of carbon through the abiotic and biotic parts of the carbon cycle
Answers
The movement of carbon through the abiotic and biotic parts of the carbon cycle is the following:
In the carbon cycle, carbon is moved between the four reservoirs where it is in different states:
Atmosphere, carbon is in the form of carbon dioxide (CO2) by joining with oxygen in the form of gas.
Terrestrial biosphere, carbon is found in the elements that make up terrestrial and coastal ecosystems, in non-living organic matter, and in the soil.
Oceans, carbon is part of the hydrosphere, it is found in dissolved organic carbon, in marine organisms and in non-living matter.
The water vapor produced and released into the atmosphere also promotes gas exchange with the ocean, allowing carbon to dissolve in the water, where it is fixed by photosynthetic plankton.
Sediments: carbon is part of the geosphere, excess carbon in decomposing organic matter will accumulate and sediment in the various layers of the earth's crust, where it forms fossils, hydrocarbon deposits or reactive sediments.
During photosynthesis, green plants take CO2 from the abiotic environment and incorporate the carbon into the carbohydrates they synthesize.
Part of these carbohydrates are metabolized by the same producers in their respiration, returning carbon to the surrounding environment in the form of CO2.
That is, the return of CO2 to the atmosphere occurs when living beings oxidize food while breathing, producing CO2.
Therefore, we can conclude that the movement of carbon between the abiotic environment and biotic factors (living organisms) defines the carbon cycle.
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In the dna structure, what components of the nucleotide make up the backbone of dna?
Answers
In the DNA structure, the components of the nucleotide that make up the backbone of DNA are alternating sugar (deoxyribose) and phosphate groups.
А phosphаte bаckbone is the portion of the DNА double helix thаt provides structurаl support to the molecule. DNА consists of two strаnds thаt wind аround eаch other like а twisted lаdder. Eаch strаnd hаs а bаckbone mаde of аlternаting sugаr (deoxyribose) аnd phosphаte groups.
Аttаched to eаch sugаr is one of four bаses--аdenine (А), cytosine (C), guаnine (G), or thymine (T). The two strаnds аre held together by bonds between the bаses, with аdenine forming а bаse pаir with thymine, аnd cytosine forming а bаse pаir with guаnine.
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Question 9
2 pts
A disease is diagnosed with an X-ray. This is an example of a_______of a disease
None of the listed answers are correct
Signs
Symptoms
Question 10
When a person suffers from the full set of symptoms, the person is in the________
2 pts
Disease
period.
Convalescent
Prodromul
Incubation
Question 11
2 pts
Which type of enzyme is directly involved in causing cellular damage during the disease process?
Endoenzyme
Exoenzyme
None of the listed answers are correct.
Answers
Question 9:
A disease is diagnosed with an X-ray. This is an example of a diagnostic test for a disease.
Question 10:
When a person suffers from the full set of symptoms, the person is in the disease period.
Question 11:
Which type of enzyme is directly involved in causing cellular damage during the disease process?
The correct answer is Exoenzyme. Exoenzymes are enzymes that are secreted by microorganisms and can cause damage to host cells during the disease process.
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________ is the greenhouse gas that has had the most impact on climate change and it is released into the atmosphere by __________.A. CuSO4 (copper sulfate), miningB. SO2 (sulfur dioxide), burning fossil fuelsC. NO2 (nitrogen dioxide), deforestationD. CO2 (carbon dioxide), burning fossil fuels
Answers
Carbon dioxide is the main greenhouse gas emitted by human activities. Human activities include the burning of fossil fuels such as oil (gasoline) and coal. This gas is released into the atmosphere as complete combustion of fossil fuels is achieved.
We can conclude that the correct answer is:
Answer:D. CO2 (carbon dioxide), burning fossil fuels
The following image shows the way that carbon cycles through our ecosystem:
Based on this diagram, which of the following statements BEST describes how carbon might make its way into animals in the ecosystem?
A) Animals breathe in the carbon dioxide from the air and are capable of converting it to usable organic molecules
B) Animals absorb carbon by drinking purified water.
C) animals eat plants or other animals that have eaten plants with therefore contain
D) Fertilizers containing manure allow the carbon to seep into the fruits and vegetables
that animals eat.
Answers
Animals eat plants or other animals that have eaten plants and therefore contain carbon. hence option C is correct.
Carbon enters the ecosystem through photosynthesis in plants, which converts carbon dioxide from the air into organic molecules. Animals then consume these plants (or other animals that have consumed these plants), and in doing so, they obtain the carbon-containing organic molecules that they need to survive.
This process is known as the carbon cycle, and it is the primary way that carbon is transferred from the abiotic (non-living) environment to the biotic (living) environment. Therefore, option C is the most accurate statement regarding how carbon might make its way into animals in the ecosystem.
Hence option C is correct.
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(HELP NEEDED ASAP WILL GIVE BRAINLIEST) After analyzing the radon table above. Which taxon level do all three organisms also NOT have in common?
-Class
-Family
-Order
-Species
Answers
An entity used for classification is a taxon (plural taxa). Species, genera, families, orders, classes, phyla (in animals), divisions (in plants), and kingdoms are examples of taxa at various levels of the hierarchical structure, in that sequence.
What is a taxon example?Taxon is the name for a certain hierarchy level used to categorise living things. An entity used for classification is a taxon (plural taxa).Species, genera, families, orders, classes, phyla (in animals), divisions (in plants), and kingdoms are examples of taxa at various levels of the hierarchical structure, in that sequence. Kingdoms are found at the top of a hierarchy, whereas species are found at the bottom. So each included group can be referred to as a taxon (rank). Generic groups are made up of genera, which are made up of families, which are made up of orders, which are made up of orders, and so on.Mangifera indica's Taxonomic TreeMangoliopsida is a suborder of the kingdom plantae.Magnoliophyta as the classAnacardiaceae Family, Order: SapindalesMangifera, genusSpecie: indica.To Learn more About taxon Refer To:
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A scientist is examining a single celled organism that is often found in the human body some examples of this organism are helpful in summer harmful to humans what kingdom does this organism belong to?
Answers
Answer:The answer Is Eubacteria
Explanation: I took the test ahaha :) Hope This helps.
All mammals have a double circulatory system. Fig shows part of the human double circulatory
system.
Name the muscular wall that separates the left and right sides of the human heart. (MARK-1)
Answers
Both plant and animal cells contain -
A. mitochondria, cell membrane, and chloroplasts.
B. a cell membrane, cytoplasm, and nucleus.
C a cell membrane, cell wall, and nucleus.
D. mitochondria, a cell wall, and chloroplasts.
Answers
Both plant and animal cells contain a cell membrane, cytoplasm and nucleus because animal cell does not contain cell wall and plant cell have cell wall but both of the cell contain cell membrane, cytoplam and nucleus.Thus option B is correct.
What is the difference between plant and animal cell?Plant cell consist cell wall but in animal cell, cell wall is absent. Nucleus is present in both of the cell. animal cell does not contain cell wall and plant cell have cell wall but both of the cell contain cell membrane, cytoplam and nucleus.
The main function of vacuoles present in plant cell as it help in storage of waste materials in a plant cell and maintain a proper pressure in a plant cell.
Both plant and animal cells contain a cell membrane, cytoplasm and nucleus because animal cell does not cotain cell wall and plant cell have cell wall but both of the cell contain cell membrane, cytoplam and nucleus.Thus option B is correct.
There are various differences are found in plant and animal cell. The very first difference is shape of the cell, plant cell is square or rectangular in shape but animal shape is irregular in shape.
Plant cell consist cell wall but in animal cell, cell wall is absent. Nucleus is present in both of the cell.
The main function of vacuoles present in plant cell as it help in storage of waste materials in a plant cell and maintain a proper pressure in a plant cell.
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Which of these is a harmful interaction? (4 points) Competition Mutualism Commensalism Symbiosis
Answers
Answer:
Commensalism Symbiosis
Explanation:
Answer:
Symbiosis
Explanation:
the process used by planta and other autotrophs to capture light energy and use it to power chemical reactions is called 1.) chemosynthesis 2.) biogeochemical 3.) heterotroph 4 photosynthesis
Answers
Answer:
Photosynthesis
Explanation:
Photosynthesis is the process by which green plants use sunlight to produce their food
Assuming that the breathing rate of human can be affected in some way. If a large number of people was confined in a small room for a long period of time. Give a reason for your answer.
Answers
working in a small space is dangerous. Working in restricted places causes numerous injuries and fatalities among employees every year.
What is the human breathing rate?To deliver oxygen to the body (working muscles) more quickly, breathing rate rises. Heart rate increases to more effectively get oxygen (and glucose) to the breathing muscles. The cardiovascular system is made up of the heart, lungs, and circulatory system working together.
Adults typically breathe 8 to 16 times per minute while at rest. A typical rate for a baby is up to 44 breaths per minute.
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3. Any spread of particles from area of high concentration to area of lower 1 point
concentration. This question has more than one answer. *
Diffusion
Active Transport
Osmosis
U Phagocytosis
Passive Transport
Facilitated Diffusion
Pinocytosis
Receptor-Mediated endocytosis
Exocytosis
Answers
Answer:
Diffusion
Osmosis
Passive transport
Which of the following terms would best describe the 9th rib from the top on your rib
cage?
True Rib
Floating Rib
False Rib
Articular Rib
Answers
Answer:False Rib
Explanation:
Question 3 of 10
The reactants when fossil fuels are burned are shown below. What are the
products of this reaction?
Fossil fuel + oxygen gas → ?
A. Nitrogen gas + heat
B. Water + heat
C. Carbon dioxide + water + heat
D. Carbon dioxide + fossil fuels
Answers
Why? - Combustion is commonly called burning, and the substance that burns is usually referred to as fuel. The products of a complete combustion reaction include carbon dioxide (CO2) and water vapor (H2O). The general equation for a complete combustion reaction is: Fuel + O2 → CO2 + H2O.
microtubule structures that help separate the chromosomes during mitosis
Answers
Answer:
O fuso mitótico
Explanation:
fuso é uma estrutura feita de microtúbulos, fibras fortes que são parte do "esqueleto" da célula. Sua função é organizar os cromossomos e movê-los durante a mitose. O fuso cresce entre os centrossomos a medida que eles se separam.
Explain the rapid evolution of flu viruses and the impact of immunizations.
Answers
What is the ratio of white crossed with heterozygous purple?
Answers
The genotypes of the offspring born from the union of a heterozygous purple flower (Rr) and a recessive white flower (rr) are (Rr), (Rr), (rr), and (rr). Consequently, half of the progeny possess purple flowers (Rr), while half have white blooms (rr).
Because all of them are heterozygotes and purple is dominant above white in this situation, all the offspring from this cross would be purple (Pp). There is therefore no possibility of a child having white blooms. The F2 generation is composed of 50% Pp (heterozygous), 25% PP (homozygous dominant), and 50% Pp purple flowers (homozygous recessive, white flowers). In this way, the white characteristic is passed on to the next generation. The F1 generation, which solely possessed purple flowers, was created by cross-pollination using two parent (P) plants. from F1 self-pollination
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PLEASE HELP WITH 1(a)and (b) !!! it u spam u will be reported ! will be marked as brainlist if correct
Answers
Pigs were first brought to the Americas in the 1500s. Some of these pigs escaped into the wild, where they established the feral pig population. Since these pigs had never existed in this region, they filled an entirely new ecological niche. Surplus of food, shelter, and habitat resulted in a huge population spike.
b)
Feral pig population is still on the rise in North America. However, their population growth has slowed. Eventually limits on their food sources and habitat will likely limit their population rise.
How do you distinguish tornado and down burst at a given
location after the event had occurred? Describe in detail the role
of vorticity in the formation of the supercells
Answers
Tornadoes and downbursts are two of the most destructive weather phenomena on earth. While both of them can create strong winds, it's important to distinguish between the two to avoid confusion.
To differentiate between the two, the following steps can be taken:After the event has occurred, check the damage path. Tornadoes can leave a relatively narrow, twisted path that can be hundreds of yards long. On the other hand, the damage from a downburst is often straight-lined and can be more widespread in terms of coverage area.Check the direction of the damage. In a tornado, the damage will generally be aligned with the direction of the wind, but in a downburst, the damage will often be perpendicular to the direction of the wind.
Check the atmospheric conditions before the storm. If a tornado is expected, the atmosphere will be charged with energy and very unstable. A downburst, on the other hand, can be caused by a simple thunderstorm. So, if the atmospheric conditions were calm and there was no warning of a tornado, then it was probably a downburst.Vorticity is a term used to describe the rotation of air masses around an axis or an imaginary line. It is a crucial component of supercell formation. When wind shear is present, vorticity can be created in a supercell.
A supercell is a thunderstorm with a rotating updraft. When this happens, a horizontal tube of spinning air is created, and this tube can be stretched and rotated vertically, forming a mesocyclone. A mesocyclone is the precursor to the formation of a tornado. The strength of the vorticity in the mesocyclone is what determines whether a tornado will form or not. The stronger the vorticity, the more likely a tornado will form. Therefore, vorticity plays a significant role in the formation of supercells.
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explain how blood flow in the skin helps to maintain a constant body temperature in very hot conditions.
Answers
Answer:
The skin immense blood supply helps regulate temperature
Explanation:
The skin immense blood supply helps regulate temperature
Each end of a long bone has an expanded portion called the: ________
Answers
The extended end of long bones in animals is called the epiphysis. It ossifies separately from the bone shaft but joins it when the bone has grown to its maximum size. An extremely thin layer of compact bone is placed on top of the spongy cancellous bone that makes up the epiphysis.
What is the function of the epiphysis?The long bone's epiphysis, which is located at its terminal end, is usually where joints are joined. Long bones' main supply of the red bone marrow necessary for erythropoiesis is also found here.There are two different kinds of epiphyses: traction epiphyses (also known as apophyses), which are the places where large muscles originate or insert, and pressure epiphyses, which are located at the ends of long bones (e.g., the greater trochanter of the femur). The diaphysis and epiphysis meet at the metaphysis.Strong, thick, and mobile, long bones are made of a strong, mineral-rich material. The lengthy bone in the thigh is called the femur. Two ends and a shaft are present on a long bone. Even though they are little in size, several of the fingers' bones are categorized as long bones.To Learn more About epiphysis Refer To:
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Photosynthesis & Cell Respiration
Topic: Cellular Respiration
•Goal of cellular respiration = to convert the_______ energy in food (________) to ________ energy stored _____
•we use_________ 1st for energy, but any food can be processed/broken down as a source of ________
•Chemical Equation:
_____+______->____+_____+____ (ATP)
Reactants=________
○_____ (glucose) and _____ oxygen
Products=________
○____(carbon dioxide)and _______ (water)
• Note: Energy is released in the form of ATP from this process but isn't considered a product
Structure of Mitochondria
• Cellular respiration takes place in the _________ which has 2 parts:
○inner membrane:_______
○matrix:________
Answers
Each cell in the body has mitochondria and cytoplasm, which are where cellular respiration takes place.
Explain about the mitochondria?The membrane-bound cell organelles known as mitochondria are responsible for producing the majority of the chemical energy required to drive a cell's metabolic functions (mitochondrion, singular). The majority of a cell's energy is produced by mitochondria, which also contain specific genetic material that differs from that present in the nucleus.
The cellular organelles known as mitochondria carry out the process of turning food energy into a form that cells can use. There are hundreds to thousands of mitochondria in each cell, which are found in the fluid surrounding the nucleus of the cell (the cytoplasm).
Each cell in your heart muscle has roughly 5,000 mitochondria. Since these cells require more energy than any other organ in the body, they have more mitochondria than any other organ!
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