The cyclopropane molecule is highly strained due to the presence of bond angle 60. Another reason that makes it highly strained is the torsional strain that leads to the formation of eclipsed conformation of the hydrogen bond.
Further explanation:
Cyclopropane is an explosive, colourless gas that is used for medicinal purpose. It is a non-irritating to the mucous membranes and also affects respiration. It is highly strained molecule as the confirmation of cycloalkanes is stimulated by torsional angle, angle strain as well as steric edge.
Cycloalkanes are composed of more than three carbon atoms that are not flat molecule and they are puckered.
The three as well as four-membered ring compound consists of angle strain and also minimise the internal bond angles. Angle strain is formed due to the deviation of bond angles from an optimum tetrahedral angle such as 109.5ᴼ. Torsional stress is formed due to the eclipsing interactions while a steric strain is formed when the carbon atoms are forced towards each other.
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Answer Details:
Grade: Senior School
Subject: Chemistry
Chapter: Organic chemistry
Keywords:
Cycloalkanes, angle strain, torsional strain, puckered, tetrahedral angle, carbon atoms, deviation.
While analyzing a karyotype genetics identify a missing chromosome. Which term describes this chromosomal abnormality
Answer: Aneuploidy
Explanation:
Aneuploidy is the presence of abnormal normal of chromosomes in a cell. Example: The chromosomes number 45 or 47 chromosomes which is not common in case of human beings.
The normal number of chromosomes in human beings is 46. This results in different syndromes which can cause deformities in the body of the individual.
It leads to miscarriage in most of the cases the survival is very less.
The underlying assumption of the harrod-domar growth model is that
The underlying assumption of the Harrod-Domar growth model is that Growth is mainly determined by capital accumulation through savings
The Harrod-Domar model is a model of economic growth. According to the Harrod-Domar model, economic growth depends on two important factors, the saving ratio and the capital output ratio.
The most common type of stroke is cerebral hemorrhage. cerebrovascular occlusion. cerebral aneurysm. cerebral ischemic attack.
Choose the answer that best describes the liverâs role in lipid digestion. choose the answer that best describes the liverâs role in lipid digestion. the liver creates lipocytes, which are cells that store lipids. the liver creates bile, a soapy compound that emulsifies lipids. the liver creates vitamin k, which is needed for lipid absorption. the liver creates digestive enzymes, which are needed to break down lipids.
Give an example of spinal reflex and explain how the nervous system functions in this reflex action
The patellar reflex is the most common example or a spinal reflex. When the knee is tapped, the nerve that will receives this stimulus sends an impulse to the spinal cord and relay it to the motor nerve. This sources the quadriceps muscle at the front of the thigh to contract and twitch up the leg. This reflex contains simply two nerves and one synapse. The leg will start to twitch up on the other hand the brain is just suitable aware of the tap and comprehends the situation. Subsequently the tap, the leg is routinely lengthy once and comes to rest. The nonappearance of this reflex is problematical and recognized as westphals sign this reflex might be lessened or absent in lower motor neuron lesions and during sleep.
A spinal reflex such as the withdrawal reflex involves a rapid, protective response where sensory neurons communicate with interneurons in the spinal cord, which trigger motor neurons to cause muscle contraction, all without conscious brain activity.
An example of a spinal reflex is the withdrawal reflex. This occurs when a person accidentally touches a hot stove and immediately withdraws their hand. In this reflex action, sensory neurons detect the painful stimulus and send nerve impulses to the spinal cord. There, the impulse transfers to an interneuron, which then relays it to a motor neuron. The motor neuron carries the signal to a muscle, like the biceps brachii, causing it to contract and thus withdrawing the arm. This reflex arc happens without conscious thought or brain involvement, illustrating the efficiency of the somatic nervous system in protecting the body from harm.
The survival of organisms best suited to a particular environment is known as
The survival of organisms best suited to a particular environment is known as Natural selection. This can be explained through the theory of survival of the fittest.
What is Natural selection?Natural selection is the process through which the populations of living organisms adapt and change according to the surrounding environment. Individuals in a population are naturally variable, meaning that they are all different from each other in some ways. This variation means that some individuals have traits which are better suited to the environment than the others.
For Charles Darwin, natural selection is a drawn-out, complex process which involved multiple interconnected causes. Natural selection requires variations in a population of organisms. For the process to work, at least some of the variations in a population must be heritable and passed on to the organisms' descendants in some way.
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C) what is the overall charge of the most abundant tripeptide species at neutral ph (ph 7.0)?
At a neutral pH of 7.0, the amino and carboxyl groups of amino acids are partially ionized.
The charge of a tripeptide relies on its amino acids and their pKa values. The tripeptide's three-letter amino acid code can be used to analyse charges at neutral pH:
Acidic amino acids like aspartic and glutamic acids are negatively charged at pH 7.0.
At pH 7.0, basic amino acids like lysine, arginine, and histidine are positively charged.
At pH 7.0, neutral-side amino acids like glycine, alanine, and leucine are uncharged.
The tripeptide's charge is the total of its amino acid charges. We require tripeptide sequence amino acid information to find the most prevalent tripeptide species at neutral pH.
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The overall charge of the most abundant tripeptide species at neutral pH (pH 7.0) depends on the individual amino acids in the tripeptide and their respective charges. If the amino acids have neutral side chains, the tripeptide will have a neutral overall charge. If one or more amino acids have positively or negatively charged side chains, the tripeptide will have a positive or negative overall charge, respectively.
Explanation:The overall charge of the most abundant tripeptide species at neutral pH (pH 7.0) depends on the individual amino acids present in the tripeptide. In general, at neutral pH, amino acids can exist in different forms depending on the pH of the solution. Amino acids can either be positively charged (cationic), negatively charged (anionic), or neutral. The overall charge of the tripeptide can be determined by considering the charges of the individual amino acids and their respective pKa values.
For example, if the tripeptide consists of three amino acids with neutral side chains at neutral pH, then the overall charge of the tripeptide would be neutral. However, if one or more of the amino acids have positively or negatively charged side chains, then the overall charge of the tripeptide would be either positive or negative, respectively. It's important to note that the specific amino acids present in the tripeptide would determine the overall charge at neutral pH.
If the CO2 levels in the atmosphere increase, the average temperature on Earth will most likely ?
Answer:
increase
Explanation: PLATO
CO2 is a greenhouse gas. It traps infrared light and prevents it from leaving Earth. So, if the level of CO2 increases, more heat will be trapped, which will result in an increase in Earth’s average temperature.
Gases from __________ continue to play an important role in the climate and the long-term composition of the atmosphere.
A patient is taking bismuth subsalicylate [pepto-bismol] to prevent diarrhea. the nurse performing an assessment notes that the patient’s tongue is black. what will the nurse do?
In fishes, pharyngeal pouches may develop into
Goosebumps are caused by contractions of the
Goosebumps occur when the arrector pili muscles, tiny muscles attached to each hair follicle, contract. This is a survival mechanism inherited from our ancestors and can occur in response to emotions or cold weather.
Explanation:Goosebumps are caused by the contractions of tiny muscles at the base of each hair follicle known as arrector pili muscles. When these muscles contract, they cause the hair to stand upright, creating what we identify as goosebumps. The physiological reaction is a vestigial reflex inherited from our distant ancestors whose body hair would stand up to make them appear larger when faced with threats. In modern human, it is often associated with emotional responses such as fear, inspiration, awe, or cold weather.
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During activity and at rest, which type of body tissue burns the most calories?
Which rays of the electromagnetic spectrum are responsible for causing sunburn when you spend too much time exposed at the beach?
A) Ultraviolet
B) X-rays
C) Gamma
D) Visible
E) Infrared
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Which represents the point in Earth’s revolution around the Sun when it is at aphelion?
A) in early July
B) in early April
C) near the first day of winter in December
D) in early January
E) in early September
In a species of mice, brown fur color is dominant to white fur color. when a brown mouse is crossed with a white mouse all of their offspring have brown fur. why did none of the offspring have white fur?
Answer:
Because white fur is determined by a resessive allele. Resessive alleles are only expressed if they pair with another resessive allele.
Explanation:
The physical characteristics of the mice shown in the above question are determined by the dominance relationship between the genetic alleles. As we can see from reading the question, brown fur is a trait regulated by a dominant allele, in mice, on the other hand, white fur are a trait regulated by recessive alleles.
Dominant alleles are so named because certain genetic traits prevail over others. This is because dominant genes do not need their dominant allele pair on the chromosome, that is, they do not need to be double-dose in the genotype to manifest. However, recessive alleles are so named because to manifest their hereditary characters one must present a double dose in the genetic code.
In this way, we can define the reason that prevented the offspring, shown in the above question, from presenting white fur. Because white fur is recessive, it would require both parents to have white fur for this trait to be passed on to their offspring.
Why ornithine is unlikely to be found in proteins in vivo mcat?
Ornithine is unlikely to be found in proteins in vivo mcat because not every amino acid found in the human body is identified by a codon in the genetic code or merged into proteins, that is Ornithine.
Ornithine is found as one of the intermediates in the urea cycle, the process of metabolism when the body excretes excess nitrogen.
When organisms have a similar niche, __________ may occur.
"________ describes a proportion of difference among people that is attributed to genetics."
"Heritability describes a proportion of difference among people that is attributed to genetics."
Definition of Heritability: Heritability is a statistical measure that ranges from 0 to 1 (or 0% to 100%). A heritability of 0 indicates that genetic factors play no role in the observed variation, while a heritability of 1 indicates that all the observed variation is due to genetic differences.
Partitioning Variation: In the context of heritability, the goal is to understand the relative contributions of genetic and environmental factors to individual differences in a trait.
Interplay of Genetics and Environment: It's crucial to understand that heritability does not imply that a specific percentage of an individual's trait is due to genetics. Rather, it provides information about the relative importance of genetic factors in explaining population-level variability.
Context Dependence: Heritability can vary across populations and environments. A trait may have different heritability estimates in different populations or under different environmental conditions.
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The skin becomes _________ when red blood cell perfusion to the capillary beds of the skin is poor.
what is the value of x+ 3y + z if x = 3, y = 3, and z = 4
The hypothesis,which says lightning struck the earth causing tiny organic molecules to join and form living organisms, is historically known as
Although against your better judgement, you squeezed an acne pustule on your face. now you notice a clear fluid seeping from the opening. what is the role of the clear fluid?
True or False: If you refuse to submit to a breath, urine, or blood test, it is admissible as evidence in DUI criminal proceedings in Florida.
Answer;
The above statement is true;
If you refuse to submit a breath, urine, or blood test, it is admissible as evidence in DUI criminal proceedings in Florida.
Explanation;
-Florida law requires you to take a breath, blood, or urine test if you are arrested for a DUI.
-If individuals are lawfully arrested by an officer who has probable cause to believe that they have been driving under the influence, then they consent to taking a chemical test of blood, breath or urine for the purpose of determining the blood alcohol content (BAC) or for drugs. If a person refuses to submit to a breath, urine or blood test, it is admissible as evidence in DUI criminal proceedings.
When you copy a selection of cells using drag and drop, which appears before you release the mouse button?
Final answer:
While copying cells in Excel with drag and drop, a moving dashed line border signifies the selection being copied. Releasing the mouse button pastes the content into the destination cells, with Excel's AutoFill feature updating any formula references.
Explanation:
When you copy a selection of cells using drag and drop in Excel, a border appears around the selected cells indicating the area to be copied. This border is typically represented by a moving dashed line, which persists around the selection until you release the mouse button. Once you drag the selection to the new location and release the mouse button, the selected cells' contents are copied to the destination cells. As you drag the cells to the point of destination using the fill handle, you may also see a ghost-like preview of the data that will be entered into the destination cells.
Moreover, if you're copying and pasting formulas that contain cell references, Excel's AutoFill feature will update these references relative to the destination cells. This functionality is particularly useful for maintaining the integrity of formula calculations throughout a spreadsheet. The fill handle is an essential tool for leveraging this powerful feature.
Three species of lizard, labeled A, B, and C, are being studied using molecular analysis by two research colleagues in different laboratories. The mitochondrial DNA of lizards A and B are compared and are found to differ by 0.1%. The ribosomal RNA of lizards B and C are found to differ by 0.02%. They compare their findings and conclude that lizard B is more closely related to C than to A. What is the flaw in their reasoning, and how can their analysis be improved?
A. They applied different mathematical formulas for their computations. They should recalculate using the same formulas.
B. They compared different molecules which have different mutation rates. They should compare same molecule in the lizards.
C. They only made one measurement each. They should repeat their measurements to reduce the uncertainty in their results.
D. They used different equipment for analyzing the molecules since they work in different labs. They should work in the same lab.
Answer:
The most appropriate answer would be option B.
The flaw in their reasoning is that they compared different molecules in a different set of organisms.
For example, they compared the DNA of lizard A and B whereas they compared the RNA of lizard B and C.
In addition, the mutation rates of different molecules (DNA and RNA) are different and thus, comparison of DNA in one set of organism and comparison of RNA in another set cannot be used as the basis for the conclusion.
Answer:
B. They compared different molecules which have different mutation rates. They should compare same molecule in the lizards.
Explanation:
The researchers shown in the question above wish to discover the genetic relationship of three lizards based on analyzes of different molecules. The researchers evaluated the difference between DNA in lizards A and B and evaluated the difference between RNA molecules between lizards B and C, so it is not possible to detect a genetic relationship between lizards. The correct thing would be for researchers to investigate only the DNA of all lizards, or just the RNA of all lizards.
Ms. golightly was diagnosed with breast cancer. the tumor was removed along with a large area of surrounding tissue and lymph nodes. this type of surgical procedure is called ________ resection.
Which of the following would most likely happen if the epithelial cells in the stomach failed to produce mucus?
A. Gastric juice would digest the stomach lining, resulting in ulcers.
B. Food leaving the stomach would only be partially digested.
C. Stomach pH would increase, resulting in acid reflux disease.
D. The cells would break down more slowly in order to protect the stomach.
Answer:
A. Gastric juice would digest the stomach lining, resulting in ulcers.
Explanation:
Because when the cells fail to produce mucus thats when gas comes in.
Polysaccharides are composed of what monomers (building blocks)?
An organ of common tissue between the mother and the growing embryo is called the