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Related Questions
a bone biopsy from a jaw sent to a microbiology laboratory for culture grew out an actinomyces species. what would be the most probable contributing factor to this infection?
Answers
The most probable contributing factor towards this infection is poor oral hygiene.
Here are some signs of poor oral hygiene:
ulcers, sores, or tender areas in the mouth that won’t heal after a week or twobleeding or swollen gums after brushing chronic bad breathsudden sensitivity to hot and cold temperatures pain or toothacheloose teethreceding gumspain with chewing or bitingswelling on the face and cheekthe clicking of the jawcracked or broken teethfrequent dry mouthActinomyces are gram-positive. Actinomyces species are anaerobic and they grow best under anaerobic conditions. Actinomyces species may form endospores, and while individual bacteria are rod-shaped, Actinomyces colonies form branched networks
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Are
graded potential local to the dendrites anf soma of a neuron? Yes
or no? No explanation needed
Answers
Yes, graded potentials are local to the dendrites and soma of a neuron.
Graded potentials are changes in the membrane potential of a neuron that occur in response to incoming signals. They can be either depolarizing (making the cell more positive) or hyperpolarizing (making the cell more negative). Graded potentials are called "graded" because their magnitude can vary, depending on the strength of the stimulus.
These potentials are typically generated in the dendrites and soma (cell body) of a neuron, where they serve as local signals. Graded potentials can result from the opening or closing of ion channels in response to neurotransmitters, sensory stimuli, or other electrical signals.
Unlike action potentials, which are all-or-nothing events that propagate along the axon, graded potentials do not propagate as far and decay over short distances. However, if a graded potential is strong enough, it can trigger the initiation of an action potential at the axon hillock, leading to the transmission of the signal down the neuron.
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How to breathe in CO2 and give out oxygen?
Don't dare to spam :p
Answers
Answer:
when you inhale ( breathe in ), air enters your lungs and oxygen from the air move from your lungs to your blood. at the same time carbon dioxide moves from your blood to the lungs and is exhaled ( breathe out ). this process is called gas exchange and is essential to lifeAnswer:
was your old username glitchkpopstan
The constituent of petroleum used in Vaseline is ________________. A. lubricating oil
B. kerosene
C. paraffin wax D. bitumen
Answers
Answer:
paraffin
Explanation:
what passes through atp synthase in order to turn adp p into atp?
Answers
Protons (H+) pass through ATP synthase in order to turn ADP + Pi into ATP during the process of oxidative phosphorylation in cellular respiration.
ATP synthase is an enzyme complex found in the inner mitochondrial membrane (or the thylakoid membrane in chloroplasts) that plays a key role in ATP synthesis. It utilizes the energy stored in the proton gradient to convert ADP (adenosine diphosphate) and inorganic phosphate (Pi) into ATP (adenosine triphosphate).
During oxidative phosphorylation, protons are pumped across the inner mitochondrial membrane from the matrix to the intermembrane space, creating a proton gradient. This proton gradient is established by the electron transport chain, which transfers electrons from electron donors to electron acceptors, ultimately leading to the pumping of protons.
The protons then flow back into the matrix through ATP synthase, which acts as a molecular turbine. As the protons pass through ATP synthase, their flow drives the rotation of a rotor-like structure, causing conformational changes in the enzyme that allow the synthesis of ATP from ADP and Pi.
In summary, the passage of protons through ATP synthase is necessary to power the conversion of ADP + Pi into ATP, a process known as chemiosmotic phosphorylation or oxidative phosphorylation.
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what is occurring during the s phase of the cell cycle?
Answers
During S phase (synthesis), DNA replication takes place. Completion of DNA synthesis is followed by G2 phase during which cell growth continues and proteins are synthesized in preparation for mitosis. S page lasts for 8 hours approximately.
Reduced vitamin K is needed for the synthesis of prothrombin. An enzyme, vitamin K epoxide reductase (VKOR), converts vitamin K to reduced vitamin K. The diagram on the top shows this conversion. Another diagrams show the structures of warfarin and vitamin K. Using the information in the diagrams, suggest why warfarin inhibits the synthesis of prothrombin.Reduced vitamin K is needed for the synthesis of prothrombin.
Answers
The anticoagulant effect of warfarin is mediated through the inhibition of vitamin K-dependent coagulation factors (II, VII, IX and X). This effect of warfarin results in the synthesis of immunologically detectable but biologically inactive forms of these clotting proteins.
Is vitamin K reduction necessary for prothrombin synthesis?Vitamin K deficiency is associated with increased prothrombin time and bleeding events. In bone health, the vitamin acts on osteocalcin, allowing it to bind to calcium. Therefore, vitamin K deficiency would be associated with impaired bone calcification.
Whit this information we can conclude that Vitamin K is essential in the blood clotting process. This is because it helps proteins to transform into substances that contribute to the correct clotting of the blood. Therefore, this vitamin also contributes to better healing.
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how does a plant lose water in the night
Answers
Answer:
transpiration
Explanation:
by transpirational water loss is a consequence of allowing respiratory CO2 to escape at sufficiently high rates through stomata.
following question:
Do you believe that the government should enforce automobile safety regulations? Remember
to use claim, evidence, and reasoning to support your answer. Please write a paragraph in ur own words. Do don’t copy off the internet please. Please I really need someone help right now. This is due at 11:59 pm. Please help
Answers
Answer:
isk
Explanation:
What are endocrine hormones?
A. Chemical signals from one cell to remote target cells
B. Chemicals for direct cell-to-cell communication
C. Chemicals that cross a gap between adjacent cells
Answers
Answer:
A
Explanation:
In which order career related jobs are arranged
Answers
Answer:
In chronological order.
7. A hen's egg with the shell dissolved is placed in a 10% salt solution. Relative
to the interior of the egg the salt solution is
A. Hypotonic
B. Isotonic
C. Hypertonic
D. Semi-permeable
Answers
The salt solution is Hypertonic.
Hypertonic fluids contain a higher concentration of solute compared to plasma and interstitial fluid.What is hypertonic solution?A solution that contains more dissolved particles than is found in normal cells and blood.Cells placed in hypertonic solution will shrink. Water moves from a high water concentration inside the cell to a low water concentration outside of the cell by osmosis.What is osmosis?Osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's partially permeable membrane.Osmosis is a passive transport process during which water moves from areas where solutes are less concentrated to areas where they are more concentrated.To know more about osmosis here
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How does the immune and nervous system work together to maintain homeostasis?
Answers
Please help on this question
Answers
Answer:
its c
Explanation:
Genomic libraries have many uses in genetics research. Which of the following statements is FALSE? They are a collection of different restriction enzymes. The library is made by molecular cloning. They are collection of clones. They are a collection of plasmids. Each cloned plasmid in the library contains a different segment of the genome.
Answers
Genomic libraries have many uses in genetics research. The FALSE statement regarding genomic libraries is: They are a collection of different restriction enzymes.
Genomic libraries are collections of clones or vectors that contain genomic DNA inserts. Each clone contains a segment of the DNA of the species of interest. Researchers can create genomic libraries by cloning large genomic DNA fragments into a suitable vector. These libraries can be used to identify and isolate specific genes or DNA sequences of interest. Therefore, option A, "They are a collection of different restriction enzymes" is false. The correct statement is that genomic libraries are made by molecular cloning. They are a collection of clones and a collection of plasmids. Each cloned plasmid in the library contains a different segment of the genome.
A full collection of cloned DNA snippets that make up an organism's whole genome is known as a genomic library or gene bank. It represents every gene, including exons, introns, and expressed and non-expressed forms. Genomic libraries can be preserved for a long time, and copies can be used for analysis.
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100 points, I need help filling this out.
Answers
Answer:
can u put a less blurry pic?
Explanation:
Flowing ate the different health signs in an animal. Which of these are the signs of good health in an animal l?
Answers
Answer:
I think it's the first option. (Bright eyes)
Not 100% sure but let me know if this helps you with a <3 or crown!!
Explanation:
Scientific Argument 4.1 claim 2
Answers
Arguments are human artefacts; they are examples of human invention. Contrary to appearances, arguments are artefacts in the same sense that a computer is. Humans produce arguments for specific goals, just like all other things. Additionally, arguments have sciences devoted to comprehending their operation and enhancing their production, similar to many other objects. The formal logic, probability theory, and statistics of arguments are analogous to those of computer science for computers. In other words, one should approach arguments in the same way that they would any other tool or artefact.
What is scientific argument?
People are considered to be involved in a scientific argument when they disagree on scientific explanations (claims) and back up their positions with concrete evidence. Researchers employ a strategy to guide their work called a scientific argument. Scientists criticise the shortcomings and limitations of other people's arguments in order to ultimately enhance scientific explanations and experimental methods. This method is known as "arguments supported by evidence."
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Chaperone proteins or chaperonins assist in the proper folding of proteins. explain the process.
Answers
Chaperone proteins or chaperonins assist in the proper folding of proteins.
Left to right:
1. From one end, a polypeptide that has been unfolded enters the cylinder.
2. When the cap is attached, the cylinder transforms into a hydrophilic environment that facilitates the folding of the polypeptide.
3. The cap is removed, releasing the correctly folded protein.
What is Chaperone (protein)?In molecular biology, molecular chaperones are proteins that aid in the conformational folding or unfolding of large proteins or macromolecular protein complexes.The common goal of all the different molecular chaperone groups is to aid in the appropriate folding of large proteins during or after synthesis as well as during partial denaturation.Chaperones are also involved in protein translocation for proteolysis. The first molecular chaperones to be discovered are assembly-type chaperones that aid in the formation of nucleosomes from folded histones and DNA.One of the primary functions of molecular chaperones is to prevent the buildup of misfolded proteins since heat stress increases the tendency for protein aggregation.The majority of chaperone proteins are hence classified as heat shock proteins.To learn more about chaperone proteins, refer to the following link:
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a water-soluble micronutrient found in seeds and grains is a cofactor for pyruvate dehydrogenase. what can result from deficiency of this compound?
Answers
The water-soluble micronutrient that is a cofactor for pyruvate dehydrogenase is thiamine (vitamin B1). The deficiency of thiamine, a water-soluble micronutrient, can result in the following complications: Beriberi, Wernicke-Korsakoff syndrome, and lactic acidosis.
Pyruvate dehydrogenase is an enzyme complex that converts pyruvate, the end product of glycolysis, into acetyl-CoA, which is further used in the citric acid cycle to generate energy.
A deficiency of thiamine can lead to a condition called beriberi, which can be classified into two types: dry beriberi and wet beriberi. Dry beriberi primarily affects the nervous system and can cause symptoms such as tingling or numbness in the extremities, muscle weakness, and difficulty walking. Wet beriberi primarily affects the cardiovascular system and can cause symptoms such as rapid heartbeat, edema (swelling due to fluid retention), and shortness of breath.
If the deficiency of thiamine is severe and prolonged, it can also lead to a condition called Wernicke-Korsakoff syndrome, which is characterized by a combination of neurological and psychiatric symptoms, including confusion, memory loss, and difficulty with coordination.
Lactic acidosis: It is a medical condition in which the lactate levels in the blood rise above normal levels. Thiamine deficiency can result in lactic acidosis, which can be life-threatening if left untreated.
Therefore, thiamine deficiency can impair the function of pyruvate dehydrogenase and lead to a decreased ability of the body to generate energy, which can result in various health problems as described above.
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does the presence of introns exons in eukaroytic cells provide more potentia diversity in gene products than is possible in porkatroi cells
Answers
Answer: Yes. Splicing can be done in different ways to yield different mRNAs wich will create different proteins. Prokaryotes are not able to do this.
Explanation:
DNA (deoxyribonucleic acid) is a molecule that contains the genetic information for synthesizing amino acids that form proteins. To do this, DNA must first be transcribed into RNA (ribonucleic acid) and this is the molecule used for protein synthesis (translation). The newly transcribed RNA (called primary messenger RNA) from DNA results in a very long molecule and also has regions that do not code for anything, called introns, which are removed by a process called splicing. Exons are segments in the RNA that do code for amino acids and remain in the mature mRNA after splicing.
Splicing is a process by which introns are cleaved from the primary messenger RNA and exons are joined to generate mature messenger RNA. In addition, alternative splicing occurs which allows different mRNA isoforms and thus different proteins to be obtained from a primary mRNA transcript. This is because the exons will be joined or spliced in different ways, giving rise to different mature messenger RNA sequences. This process occurs mainly in eukaryotes, although it can also be observed in viruses. But it does not take place in Prokaryotes (Bacteria).
In summary, exons/introns can be spliced together in different ways to yield different mRNAs sequences. Each different mRNA sequence will code for a different protein.
What process best explains how a nerve cell and a muscle cell can both
develop from the same fertilized egg?
O A. differentiation
O B. natural selection
O C. selective breeding
O D. genetic engineering
Need ASAP!
Answers
Answer:
Im pretty sure its A.
Explanation:
=just took the teskst
Answer: The correct answer is A. differentiation
Explanation: Confirmed correct.
help me thank you 1010101
Answers
Answer:
Plant Cell
Explanation:
I got it right
What type of mutation was the gray fur color?
Responses
Silent
Silent
Missense
Nonsense
Nonsense
Frameshift
Answers
The gray fur color mutation is known to be a (B), missense mutation.
What is missense mutation?A missense mutation is a type of mutation that changes one amino acid in a protein. This can change the structure and function of the protein, and can lead to a change in the phenotype of the organism. In the case of the gray fur color mutation, a single base pair change in the DNA results in the change of one amino acid in the protein that is responsible for fur color.
This change in amino acid results in a change in the way that the protein binds to other proteins, which in turn results in a change in the way that the protein is processed. This ultimately leads to a change in the color of the fur.
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a kidney stone is also called a/an
Answers
A kidney stone, also called a renal calculus, is a hard, crystalline mineral material that forms within the kidney or urinary tract.
Kidney stones develop when there is a high concentration of certain substances, such as calcium, oxalate, or uric acid, in the urine. These substances can crystallize and accumulate, eventually forming a kidney stone.
Common symptoms of kidney stones include severe pain in the back or lower abdomen, blood in the urine, and frequent urination.
Treatment options for kidney stones include increasing fluid intake, using medications to help pass the stone, or in more severe cases, undergoing medical procedures like lithotripsy or surgical removal.
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A kidney stone, also called a renal calculus, is a hard, crystalline mineral material that forms within the kidney or urinary tract.
Kidney stones develop when there is a high concentration of certain substances, such as calcium, oxalate, or uric acid, in the urine. These substances can crystallize and accumulate, eventually forming a kidney stone.
Common symptoms of kidney stones include severe pain in the back or lower abdomen, blood in the urine, and frequent urination.
Treatment options for kidney stones include increasing fluid intake, using medications to help pass the stone, or in more severe cases, undergoing medical procedures like lithotripsy or surgical removal.
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What is most often given a value of zero to describe an object's position on a straight line?
BERS
displacement
reference point
O
distance
ending location
Answers
Reference point .................................
Answer: Reference Point
Two students are planning an experiment that will test how planaria(aquatic flatworms)respond to different environments they will conduct two investigations ine that test the worms responses to different water temperature and one that tests the worm responses to different levels of acidity.
Answers
Incomplete question. The full question reads;
Two students are planning an experiment that will test how planaria (aquatic flatworms) respond to different environments. They will conduct two investigations—one that tests the worms’ responses to different water temperatures and one that tests the worms’ responses to different levels of acidity. Student 1 wants to buy two groups of flatworms and use a different group for each investigation. Student 2 thinks the same group of worms should be used for both investigations.
Do you think either student’s method would give more accurate results? Why or why not? Explain your response.
Answer:
No.
Explanation:
This is the case because it could be observed that only Student 2 thinks the same group of worms should be used for both investigations. This ultimately would result in more accurate results as both specimens can be compared to see if there's a difference in the way they respond to different environments.
However, by using a different group for each investigation, Student 1 may more likely get less accurate results.
please help me with this i have class soon
Answers
Answer:
1 G
2 D
3 F
4 A
5 H
6 B
7 E
8 C
Explanation:
These should be the correct answers. I hope this helps you and good luck!
Background Layout- Theme Transition
MEIOSIS I
TYPE
Homologous
chromosomes
pair up forming
a tetrad
FIR
Spindle fibers
attach to
chromosomes
KX
88
Name and match the Description of
the Phases of Meiosis I...
& Cytokinesis
DNA
Replication
occurs
Two new nuclear
membranes form.
Two new cells are
formed.
Answers
Homologous chromosomes link up to create tetrads during the prophase stage of the cell cycle. Synapsis is another name for the development of tetrads. Tetrads play a crucial role in the process of crossing over, which involves the exchange of DNA segments across homologous chromosomes.
What is phase of meiosis does a tetrad form?The two processes of cell division are meiosis and mitosis. Gametes, such as egg and sperm cells, are created during the cell division process known as meiosis. There are haploid gametes. This indicates that there is just one set of chromosomes present in humans as opposed to two. Because it enables the sexual reproduction necessary for genotype recombination, the generation of gametes is crucial. Therefore, sexual reproduction can boost genetic diversity, which can improve an organism's chances of surviving to produce offspring. Variable fitness brought on by genetic variety can increase a species' chances of surviving and reproducing in the future.Let's examine the meiosis process itself now that we have a clearer understanding of it on a wider scale:An initial parent cell is used. There are two copies of each chromosome in this cell, as you can see. An organism's chromosomes are genetic material bundles that contain genetic information for various parts of the body. Two chromosomes, one from each set, that have the same genetic code are said to be homologous. The chromosomes in question are homologous. In addition to having genes that code for the same things, they are roughly the same size and form. Although they are not the same. Various alleles for particular genes may be present.To Learn more About tetrads refer To:
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Which statement best describes Earth's oceans?
Answers
Answer:
Ocean covers most 0f the planet's surface and contain nearly all its water.
Explanation:
The ocean is a constant form of salt-water that incorporates more than 70 percent of the Earth's exterior. Ocean courses command the world's climate and shake a kaleidoscope of experience. ... Smaller ocean domains such as the Gulf of Mexico, Mediterranean Sea, and the Bay of Bengal have recognized seas, gulfs, and bays.
Answer: C (i need 20 or more words lol)