The molecular formula of an organic compound indicates the number of atoms of each element that make up a molecule of the substance and the proportion between them.
What is the molecular formula?The molecular formula indicates the actual number of atoms of each type of chemical element that appears in the molecule. For example, the molecular formula for water is H2O, which means that in every water molecule there are two hydrogen atoms bonded to one oxygen atom.
With this information, we can conclude that the number of atoms of each element that make up a molecule of the substance and the proportion between them is called molecular formula
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Comparing plant and animal cells Drag the correct label under each cell structure to identify whether it is found only in animal cells, only in plant cells, or in both types of cells. Labels can be used once or more than once.
The correct answers are:
Lysosome - found in ANIMAL cells but not most plant cells
Cell wall - found in PLANT cells but not animal cells
Nucleus - found in both PLANT and ANIMAL cells
Chloroplast - found in PLANT cells but not animal cells
Rough endoplasmic reticulum (ER) - found in both PLANT and ANIMAL cells
CellsAll biological things are constructed from simple units called cells. Millions of billions of cells make up the human body. They give the body structure, absorb nutrients from the diet, transform those nutrients into energy, and perform certain tasks. Furthermore, cells may replicate themselves and hold the body's genetic material.
The various components of cells each serve a unique purpose. Organelles are specialized structures that carry out particular functions for the cell among these other sections. All biological things are constructed from simple units called cells. All biological things are constructed from simple units called cells. Millions of billions of cells make up the human body.
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Worms are classified into three phyla: flatworms, roundworms, and annelids. what is the feature that distinguishes them?
Annelids are the feature that distinguishes them.
Annelids are segmented worms while roundworms are not segmented. further, annelids have a true coelom at the same time as roundworms have a pseudocolor. this means annelids have a well-developed mesoderm whilst roundworms lack a mesoderm. those are the primary capabilities that distinguish annelids from roundworms.
The 3 main malicious programs phyla are flatworms, roundworms, and segmented worms. Roundworms have a digestive tube that has openings. Segmented worms have a closed circulatory system wherein blood is enclosed in blood vessels. These are crucial steps in the evolutionary development of animals.
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Which number identifies the system that serves as the site of nutrient and waste exchange between cells and the interstitial fluid?
The site for exchange nutrients and waste in capillaries.
Exchange of Gases, Nutrients, and Waste Between Blood and Tissue by diffusion Occurs in the Capillaries. Capillaries are very tiny blood vessels — so small that a single red blood cell can barely fit through them. They help to connect your arteries and veins in addition to facilitating the exchange of certain elements between your blood and tissues.
Plasma and interstitial fluid are very similar because water, ions, and small solutes are continuously exchanged between them across the walls of capillaries, through pores and capillary clefts.
Capillary walls contain small pores that allow certain substances to pass into and out of the blood vessel.
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The ability of a muscle to contract and relax is dependent on the flow of what substance out of and into its storage site in the muscle cell? calcium chloride phosphorus iron
The ability of a muscle to contract and relax is dependent on the flow of calcium out of and into its storage site in the muscle cell.
Microfilaments travel over thick filaments as muscles flex.
The sliding filament theory describes how muscles contract. Myofilaments within your muscle fibers grasp hold of one another and slide to create a muscular contraction during this phase. However, without the presence of calcium, this is not possible. The myofilaments that cause a contraction are actin and myosin. Myosin grabs hold of actin via a myosin crossbridge, which resembles a small arm, to alter the form of the muscle. The tropomyosin molecule prevents the crossbridge from attaching at the precise location where it is required to do so. In addition to being connected to actin, tropomyosin is also connected to troponin. Calcium is released into the fiber in response to nervous system stimulation for a contraction.It associates with troponin and induces it to shift tropomyosin, revealing the myosin cross bridge's binding location. The muscle can now contract since calcium is present.learn more about muscle here: https://brainly.com/question/13920046
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Rouleaux formation is characterized by _______. Rouleaux formation is characterized by _______. an increase in ESR an increase in ESR and a decrease in fibrinogen production a decrease in fibrinogen production a decrease in ESR and a decrease in fibrinogen production a decrease in ESR
Correct answer is A. Rouleaux formation is characterized by an increase in ESR.
What is Rouleaux formation in ESR?Since rouleaux formation is primarily determined by elevated levels of plasma fibrinogen and globulin.ESR primarily reflects changes in plasma proteins associated with acute and chronic infections, some tumors, and degenerative diseases. Under such circumstances, the ESR value is much higher than 20 mm/h.In inflammatory conditions, fibrinogen, other coagulation proteins, and alpha globulin become positively charged, increasing ESR.To learn more about RBCs from the given link
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A(n) ___________________ is a substance with specific chemical and physical properties.
Neutron
Proton
Electron
Element
Answer: Elements
Explanation: Elements are unique forms of matter with specific chemical and physical properties that cannot be broken down into smaller substances by ordinary chemical reactions.
The phases of meiosis that can result in the most variation in the four resulting daughter cells are:_______
Phases of meiosis that can result in the most variation in the four resulting daughter cells is Telophase II. In telophase II, nuclear membranes form around each set of chromosomes, and the chromosomes decondense. Cytokinesis splits the chromosome sets into new cells, forming the final products of meiosis four haploid cells in which each chromosome has just one chromatid.
During telophase II, the chromosomes are enclosed in nuclear membranes. Cytokinesis follows, dividing the cytoplasm of the two cells. At the conclusion of meiosis, there are four haploid daughter cells that go on to develop into either sperm or egg cells.
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Describe the activities of the enzymes required to construct a recombinant dna molecule.
Recombinant DNA is the approach of becoming a member of two or greater DNA molecules to create a hybrid. The technology is made possible via sorts of enzymes, limited endonucleases, and ligase. A limit endonuclease acknowledges a specific collection of DNA and cuts within, or close to, that series.
Recombinant DNA is the method of joining or extra DNA molecules to create a hybrid. The technology is made possible via forms of enzymes, limited endonucleases, and ligase. A limit endonuclease acknowledges a specific sequence of DNA and cuts within, or near, that collection.
A recombinant DNA molecule is produced by using joining together two or greater DNA segments typically from different organisms. greater especially, a recombinant DNA molecule is a vector (e.g. plasmid, phage, or virus) into which the preferred DNA fragment has been inserted to enable its cloning in the proper host.
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The _____ system transports nutrients and oxygen to the cells and takes carbon dioxide and waste products to the lungs and kidneys for elimination.
The circulatory system transports nutrients and oxygen to the cells and takes carbon dioxide and waste products to the lungs and kidneys for elimination.
How does the circulatory system work?The circulatory system transports nutrients and oxygen to all the cells of the body. Circulatory system consists of the heart and the blood vessels (arteries and veins) which are present throughout the body and deliver nutrients and oxygen. The arteries work to carry the blood away from the heart while the veins carry it back to the heart. The network of blood vessels is just like a tree with branches.The heartbeats control the blood circulation.Blood flows from the atria to the ventricles from where it gets distributed to other organs.The brief pathway of blood through heart is as follows: different organs of the body > inferior/superior vena cava > right atrium > right ventricle > pulmonary arteries > lungs > pulmonary veins > left atrium > left ventricle > aorta > body cellsLearn more about circulatory system here:
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What type of cross is a mating between two individuals that are both heterozygous for the same two genes? multiple choice question.
Dihybrid cross ,the alleles used to form the zygote were the same. A mating experiment between two organism that are identically hybrid for two traits. Hetrozygous individuals ,used two different alleles to form the zygote.
Its a cross between two individuals with two observed traits that controlled by two different genes. This idea was developed by Gregor Mendal when he study on pea plants that were yellow or green and either round or wrinkled.
Dihybrid cross genotypic ratio is 1:2:1. Third cross of two heterozygous parents and phenpotypic ratio is 9:3:3:1. It is class Mendelian ratio for a dihybrid cross in which alleles of different genes are independently into gametes.
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ange the sentences in order to describe how oxygen from air is transported to the cells in the kidneys.
The correct order of the sentences is B A E C D F.
What is the kidney?The kidney is the organ that is responsible for the reabsorption of mineral salts in the body.
The following is the proper order to describe how oxygen from air is transported to the cells in the kidneys;
Air enters the bronchioles in the lunges and reaches the alveoli’sThe air diffuses into the capillaries surrounding alveoli’sThe capillaries join together to reach the arteries transferring the oxygenThe pulmonary veins carry oxygenated blood to the heartThe left atrium fills with oxygen rich blood and contracts to fill the left ventricleThe oxygen rich blood moves from the aorta and reaches the kidneys through a series of blood vesselsLearn more about the kidney:https://brainly.com/question/3645671
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Missing parts:
Arrange the sentences in order to describe how oxygen from air is transported to the cells in the kidneys.
A-The air diffuses into the capillaries surrounding alveoli’s
B-Air enters the bronchioles in the lunges and reaches the alveoli’s
C-The pulmonary veins carry oxygenated blood to the heart
D-The left atrium fills with oxygen rich blood and contracts to fill the left ventricle
E-The capillaries join together to reach the arteries transferring the oxygen
F-The oxygen rich blood moves from the aorta and reaches the kidneys through a series of blood vessels
While watching the Yankees game in the lab, you accidentally mutate the nuclear localization signal sequence of the large protein Moose 2, rendering the sequence not functional. Which of the following observations do you expect
The correct answer is Moose 2 is localized in the cytosol.
CytosolOne of the liquids present inside cells is the cytosol, which is also referred to as groundplasm or the cytoplasmic matrix. Membranes split it into compartments for storage. The mitochondrial matrix, for instance, divides the mitochondrion into several compartments.
The cell membrane of a eukaryotic cell encloses the cytosol, which is a component of the cytoplasm, which also contains the mitochondria, plastids, and other organelles. The cell nucleus is located outside of the cytoplasm. Therefore, the cytosol is a liquid matrix that surrounds the organelles. The majority of metabolic chemical reactions in prokaryotes occur in the cytosol, but a small number also occur in membranes or the periplasm. In eukaryotes, some metabolic pathways still take place in the cytosol, while others happen inside the organelles.
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The presence of precancerous changes in the cells that make up the inner lining of the cervix is known as:
The presence of precancerous changes in the cells that make up the inner lining of the cervix is known as cervical dysplasia.
Cervical dysplasia, also known as cervical intraepithelial neoplasia (CIN) can be described as a precancerous condition characterized by abnormal cell division which is usually observed in the surface lining of the cervix or endocervical canal, the opening between the uterus and the vagina.
Women under the age of 30 years are at higher risk of getting this disease which is usually discovered through a pap test. Mild cervical dysplasia sometimes resolves without treatment but proper maintenance of diet and hygiene is required with proper follow-up and regular check-ups whereas moderate and severe cases require proper treatment and removal of abnormal cells through surgery to reduce the risk of cervical cancer.
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______ results in genetically identical daughter cells, whereas ______ results in genetically different daughter cells.
Identical daughter cells are produced as a result of mitosis whereas meiosis results in the formation of the daughter cells which are different genetically.
Mitosis and Meiosis are the stages of the cell cycle which can be further divided into stages called prophase, metaphase, anaphase and telophase. Mitosis results in the formation of two diploid daughter cells which genetically identical to the initial parent cell.
In the process of meiosis, the DNA gets exchanged between the chromosomes that are paired. This shuffling of DNA results in the formation of daughter cells after cell division which are genetically dissimilar.
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When performing the Kirby-Bauer assay, the presence of a zone of inhibition indicates that __________.
Answer: that the bacteria are more sensitive to the antibiotic in the disk.
Explanation:
Figure: Kirby-Bauer test: In Kirby–Bauer testing, discs containing antibiotics are placed on agar where bacteria are growing, and the antibiotics diffuse out into the agar.
The urinary system does all of the following except A. excreting excess albumin molecules. B. regulating blood volume. C. eliminating organic waste products. D. regulating plasma concentrations of electrolytes.
The urinary system does all of the functions above except regulating blood volume (option B).
What is excretory system?The excretory system is the collection of organs that work together to remove or eject material that has no further use from the body.
The urinary system is a part of the excretory system that deals with the removal of urinary waste products.
The urinary system has the following functions:
excreting excess albumin moleculeseliminating organic waste productsregulating plasma concentrations of electrolytesTherefore, the urinary system does all of the functions above except regulating blood volume.
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For the cross in Part B, predict the frequencies of each of the phenotypes in the F1 progeny, and determine the genotype(s) present in each phenotypic class.
The genotype(s) present in each phenotypic class.
yellow round: 3/8, RrYY, RrYy (x2)yellow wrinkled: 3/8, rrYY, rrYy(x2)green round: 1/8, Rryygreen wrinkled: 1/8, rryyGenotype AaBbCc can produce 8 types of gametes, i.e., ABC, Abc, ABc, AbC, abc, aBC, aBc and abC.What is the genotypic ratio of the F1 generation?
Since that component is regarded as dominant, generation F1's genotype ratio of 100 percent Ss hybrid resulted in 100 percent smooth pea production. Mendel was producing the Ss X Ss hybrid by self-fertilizing those F1 individuals.What is the genotype of the green pod plant?
Due to the dominance of green (G) over yellow (g), plants with G in their genotypes produce green pods. The only plants with yellow pods are gg-genotype plants.What is the phenotype of F1 progeny?
Given that one dominant and one recessive allele were transmitted from the parents, the F1 generation exhibits a uniform round yellow phenotype, as predicted by the first law.
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The structures that guard the nostrils and ear canals, preventing foreign particles from entering these areas are also called guard hairs or
The structures that guard the nostrils and ear canals, preventing foreign particles from entering these areas are also called guard hairs or Vibrissae
Ear and EardrumYour ears stay clean and healthy thanks to earwax. It also serves to safeguard the lining of your ear canal and is waterproof. Earwax can be either soft and moist or dry and stiff. It can range in color from yellow to brown.The modified apocrine glands known as ceruminous glands are located in the epidermis of the human external auditory canal and produce ear wax along with sebaceous glands. Cerumen is crucial in the ear canal's defense against harm from external factors and microbial invasion.Putting a wick in the ear may be necessary if the ear canal is extremely enlarged. The wick will help the drips get to the canal's conclusion.
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After the cerebellum receives proprioceptive information from muscles carrying out a voluntary movement, where does it send corrective feedback?
After the cerebellum receives proprioceptive information from muscles carrying out a voluntary movement, where does it send corrective feedback to primary motor cortex and cerebral nuclei.
The cerebellum, also known as the corticocerebellum, has a close connection to the regulation of movement timing, rate, range, length, direction, and strength. The cerebellum receives information from the command neurons and also obtains feedback (afferent) from the proprioceptive terminals of the muscles, tendons and joints regarding what the actual movements produce .
All these information are combined and the correction signals are given to the motor cortex. The motor nuclei of the cranial nerves and spinal cord exert the lowest level of motor control. Through the closed feedback loop, this occurs.
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For a species with a Type II curve, less than ____% of individuals survive for 50% of the maximum life span. At 50% of maximum life span.
10% is the answer.
In contrast, the Type II curve describes birds, mice, and other organisms characterized by relatively constant mortality or survival throughout life.
Type II. Many bird species have a type II survival curve. On the Type II curve, organisms die almost evenly at each age interval. Organisms with this type of survival curve also have relatively few offspring and can provide important parental care.
The Type II survival curve shows near-constant mortality throughout the life of the species. This means that the probability of an individual dying is independent of age. The Type II survival curve is plotted as a diagonal down the graph.
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which of these should be reportable reasons to protect public health? a) Skin cancer b) Heart disease c) HIV d) Diabetes
Answer: c (HIV)
Explanation: Skin cancer, heart disease, and diabetes cannot be passed down unless it's hereditary though HIV being a sexually transmitted disease should be reported for that reason.
A laboratory technologist has identified a new type of protist. This protist is heterotrophic, but it also appears to extend threadlike structures into its environment. How could the technologist classify this protist
This protist can be classified as either an animal-like or fungus-like protist.
What are protists?The Kingdom Protista consists of eukaryotic protists.Members of this very diverse kingdom are typically unicellular and less complex in structure than other eukaryotes.Some protists are non-motile, others exhibit locomotion through different methods (flagella or cilia).These may be photosynthetic or heterotrophic.These organisms are often described based on their similarities to the other groups of eukaryotes: animals, plants, and fungi.The observed protist is heterotrophic which is an animal or fungus-like character. And it appears to extend threadlike structures just like the hyphae of a fungus. Therefore, this protist can be classified as either an animal-like or fungus-like protist.Learn more about protists here:
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There is a major difference between homeostasis and allostasis. Sterling and Eyer (1988) coined the term allostasis to mean that
The primary explanatory framework for physiological control, homeostasis, has undergone major adjustment in recent years, with modern models varying greatly from the original formulation.
Allostasis, a different perspective on physiological control, extends beyond its homeostatic foundations, providing unique insights pertinent to our understanding and treatment of a variety of chronic health disorders. Despite increased interest in allostasis, the notion remains ambiguous, in part because of uncertainty in how the term is defined and used, hindering effective translational and clinical research on allostasis.
The processes behind physiological regulation and dysregulation are anticipated to have significant health and disease consequences.
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Folate deficiency impairs DNA synthesis, so the nuclei of immature red blood cells are unable to divide and the cells grow larger than normal. This condition is called ______ anemi
Folate deficiency impairs DNA synthesis, so the nuclei of immature red blood cells are unable to divide and the cells grow larger than normal. This condition is called macrocytic anemia.
What is folate deficiency anemia?The red blood cells in folate-deficiency anemia are excessively big. Macrocytes are this type of cell. When they are discovered in the bone marrow, they are also known as megaloblasts. This anemia is also known as megaloblastic anemia for this reason.When your body doesn't get enough folate, it develops a folate deficiency. Symptoms include fatigue, weakness, mouth sores, and neurological issues. A diet rich in folate-rich foods can help prevent folate insufficiency.Haemoglobin, a component of red blood cells, is used to transport oxygen throughout the body.Learn more about cell here:
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Coevolution: can produce an insect with a tongue as long as its body. is responsible for nectar production by plants. All of these are correct. is responsible for all the beautiful flowers in the world. reveals that both biotic and abiotic resources can serve as selective forces.
According to the research, the correct option is (c) "All of these are correct".
What is Coevolution?It is the mutual adaptation of two or more species of living organisms in the context of their evolutionary processes.
It is linked to biotic factors, and we can find cases of co-evolution between different plants and insects.
Therefore, we can conclude that according to the research, the correct option is (c) "All of these are correct".
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Leukocytes at the infected site are a symptom of:________
a. gardnerella vaginosis.
b. genital herpes.
c. candidiasis.
d. trichomoniasis.
e. lymphogranuloma venereum.
According to the research, the correct option is d. Leukocytes at the infected site are a symptom of trichomoniasis.
What is trichomoniasis?It is a sexually transmitted infection (STI) that can affect the urogenital tract in both men and women whose disease-causing agent is a parasite called Trichomonas vaginalis.
People with this non-fatal chronic type infection present a high value of leukocytes in the laboratory analysis since these indicate the establishment of the pathological process in the body and tend to increase to fight the infection.
Therefore, we can conclude that According to the research, the correct option is d. Leukocytes at the infected site are a symptom of trichomoniasis.
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Assume you are growing bacteria on a lipid medium that started at pH 7. The action of bacterial lipases should cause the pH of the medium to Group of answer choices Decrease. Stay the same. Increase.
The action of bacterial lipases should cause the pH of the medium to decrease.
Do bacteria have lipase?The majority of lipase-producing microbes are bacteria, fungus, and yeast. Bacillus spp., Pseudomonas spp., Staphylococcus sp., and Burkholderia sp. are the most typical bacterial suppliers of lipases. Lipases are mostly produced by bacteria especially Bacillus species whose pH is 7.0
The majority of bacterial lipases are extracellular and are made through submerged fermentation. Along with some more contemporary techniques such as reverse micellar and aqueous two-phase systems, hydrophobic interaction chromatography is the method that is most frequently used to purify enzymes. Most lipases can act in a wide range of pH and temperature, though alkaline bacterial lipases are more common.
In relation to the pH, since lipases produce fatty acids, we can expect that the pH decreases, given the acid character of the fatty acids.
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The _________________ is composed of and endothelial layer that is continuous with the endocardium of the heart.
The tunica media is composed of an endothelial layer that is continuous with the endocardium of the heart.
What is tunica media?
Collagen, elastin, and smooth muscle cells make up tunica media. It is located halfway between the tunica externa and the tunica intima. The transverse arrangement of its strands and color make the middle coat (tunica medium) distinct from the inner (tunica intima). It not only supports the vessel but also alters the vessel's width to control blood pressure and flow.
Elastic fibers make up the majority of the tunica media in bigger vessels. The number of elastic fibers reduces as arteries get smaller, whereas the number of smooth muscle fibers grows. The strongest of the three layers is the tunica adventitia, which is the top layer. Elastic and collagenous fibers make up its structure.
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Explain how extraction of aluminium from bauxite may contribute to the acidification of water.
Carbon dioxide produced in the extraction of aluminum from bauxite may contribute to the acidification of water.
How does extraction of aluminum from bauxite may contribute to the acidification of water?The extraction of aluminum from bauxite occurs in two steps.
Bauxite is first purified to produce alumina. Aluminum is then obtained from alumina by electrolysis. During the electrolytic process, carbon dioxide is produced at the anodes. This carbon dioxide dissolves in water to form carbonic acid resulting un the acidification of water.
In conclusion, the extraction of aluminum is from the ore bauxite.
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Answer:
Carbon dioxide produced in the extraction of aluminum from bauxite may contribute to the acidification of water.
How does extraction of aluminum from bauxite may contribute to the acidification of water?
The extraction of aluminum from bauxite occurs in two steps.
Bauxite is first purified to produce alumina. Aluminum is then obtained from alumina by electrolysis. During the electrolytic process, carbon dioxide is produced at the anodes. This carbon dioxide dissolves in water to form carbonic acid resulting un the acidification of water.
In conclusion, the extraction of aluminum is from the ore bauxite.
What is the final electron acceptor of the series of re-dox reactions that are facilitated by the electron transport chain in mitochondria?
In electron transport chain (ETC) , Complex IV, also known as cytochrome c oxidase, oxidises cytochrome c and delivers the electrons to oxygen, the final electron carrier in mitochondria.
The electrons in the electron transport chain (ETC) pass through a chain of proteins that raises its reduction potential and results in an energy release. A proton gradient is produced by pumping hydrogen ions (H+) from the mitochondrial matrix to the intermembrane space, with the majority of this energy being lost as heat in mitochondria .
This gradient generates an electrical difference with a positive charge outside and a negative charge inside, increasing the acidity.
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