PJ conducts an experimental study on the effects of soft music durin.pdf

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PJ conducts an experimental study on the effects of soft music during high stakes science testing. He randomly assigns students at the school. In one condition he does not provide music for testing while in the other group he does provide the music. He administers a pretest at the beginning of the year and a posttest at the end of the year. PJ’s design is best described as a: A.Static group comparison B. Pretest-posttest control group design C.Control-group-time-series design D. Nonrandomized control-group pretest-posttest design Solution B) Pretest_Posttest control group design.

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In every generation of a dynasty, the number of children born is X iidpoisson ()For each child born, one can think of the event of them surviving to have children of their own is X iidbernulli(p) what is the distribution of the number of children one has that survive to have theirown children? What is the distribution of the number of grandchildrenone has? Solution what is the distribution of the number of children one has that survive to have their own children? bernoulli, it is bernoulli because one can think of the event of them surviving to have children of their own What is the distribution of the number of grandchildren one has? poisson it is poisson distribution because In every generation of a dynasty, the number of children born is a poiison distribution.

In every generation of a dynasty, the number of children born is X i.pdf

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If you deposit money today in an account that pays 4.5% annual interest, how long will it take to double your money? Round your answer to two decimal places. Solution We use the formula: A=P(1+r/100)^n where A=future value($2x) P=present value($x say) r=rate of interest n=time period. 2x=x(1+4.5/100)^n 2=(1.045)^n Taking log on both sides; log 2=n*log(1.045) n=log 2/log(1.045) =15.75 years(Approx)..

If you deposit money today in an account that pays 4.5 annual inter.pdf

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HINT: Eventually you will need to factor. Just before factoring, try multiplying both sides of the equation by 2 to get rid of the fraction. Solution cot^2 theta=(3/2)csc theta cot theta=cos theta/sin theta and csc theta=1/sin theta cos^2 theta/sin^2 theta= (3/2sin theta) 2 cos ^2 theta= 3sin theta and cos^2 theta= 1- sin^2 theta 2(1-sin^2 theta)= 3 sin theta 2-2sin^2 theta= 3sin theta 2sin^2 theta -3sin theta -2=0 (sin theta -2)(2sin theta +1)=0 sin theta=2 and sin theta=-1/2 we have to ignore sin theta=2 since sin theta lies between -1 and 1 therefore sin theta=-1/2 theta= 7pi/ 6 , 11pi/6.

HINT Eventually you will need to factor. Just before factoring, try.pdf

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how can second messengers amplify a signal initiated by a toxicant or drug? Solution A toxicant or a drug can be considered as the first messenger.When these messengers bind to their respective receptors,they may not always be able to pass through the phospholipid bilayer of the plasma membrane to enter the cell and initiate the signalling process.In such cases, secondary messengers helps to relay the signals from the recepors into the cell and in doing so, they also amplify the signal received.This amplification of a signal is brought about by activating many multi-cyclic kinase cascades and many intracellular signalling processes at a time.Thus for one every receptor that is bound by a drug /toxicant, the signal is amplified many times..

how can second messengers amplify a signal initiated by a toxicant o.pdf

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Examine the following table of characters in four different species of flower. Based on the character matrix, which is MOST likely an ancestral trait for the group of species? presence of sepals arrangement of petals number of petals number of carpals Solution The different types of species should have the common type of traits is know as ancestral trait. It also has a genetic similarities like dogs, horses, donkey all have 4 legs they all arise from common ancestors. In this case, only arrangement of petals follows the ancestral trait because all the 4 species has the genetic similarities and common traits is whorled. Other traits like number of carples and petals having different numbers in different species so, they are not a ancestral traits..

Examine the following table of characters in four different species o.pdf

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Elucidate the various functions and elements of business models. .pdf

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describe the mutualistic relationship between trichonymphs, termite, and bacteria. Solution Trichonympha live in the gut of a termite and enable the termite to survive. As termites eat wood. But they are unable to digest cellulose, which is major component in the wood. The Trichonympha that live in the termite\'s gut feed on this cellulose. If not present then termites would die of starvation. The Trichonympha in this way feed themselves. Termites learned that a bacterium in their gut could help them break down the cellulose and plant fibers that they eat ..

describe the mutualistic relationship between trichonymphs, termite,.pdf

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Could you help me answer this question...If an older adult in your care presents with sudden onset of confusion, how does this influence your assessment? What risk factors and warning signs for delirium will you look for? Solution Sudden confusion in older adults is mostly likely to result from hypoxia. This can occur under the following conditions: 1). Sudden attack of asthma 2). Other respiratory problems 3). Cardiovascular problems such as stroke Other causes include, confusion induced by hypoglycemia or hyperglycemia, hypovolemia, certain medications such as opiates, digoxin, alcohol poisoning and alcohol withdrawal can also cause confusion..

Could you help me answer this question...If an older adult in your c.pdf

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comporative financial statements of Korbin Co mpany follow KORBIN COMPANY Comparative Income Statements For Years Ended December 31, 2015, 2014, and 2013 2015 2014 2013 $ 407,048 245,043 $ 311,832 195,207 $ 216.400 138,496 Sales Cost of goods sold Gross profit Selling expenses 162,005 57,801 36,634 116,625 43,033 27,441 77904 28,565 17,961 Total expenses 94.435 70,474 46,526 Income before taxes Income taxes 67,570 12,568 46,151 31,378 6,370 9.461 Net income $ 55,002 $ 36.690 $ 25,008 KORBIN COMPANY Comparative Balonce Sheets December 31, 2015, 2014, and 2013 2015 2014 2013 Assets Current assets Long-term investments Plant assets, net $53,083 41,531 700 106,529 $ 55,517 3,150 64,581 100,114 Total assets $ 153,197 $ 148,760 $ 123,248 Liabilities and Equity Current liabilities Common stock Other paid-in capital Retained earnings $ 22,367$ 22,165 70,000 8.750 47,845 70,000 8,750 52,080 $ 21,568 52,000 5,778 43,902 Total liabilities and equity $ 153,197 $ 148,760 $123,248 value: 2.40 polnts 1. Complete the below table to calculate each years current ratio. Choose Numerator: I Choose Current ratio Current ratio 2015 2014 2013 to 1 to 1 to 1 Solution Ans.(1) Current Ratio Year Current Assets / Current Liab. = Current Ratio 2015 53083 / 22367 = 2.37 to 1 2014 41531 / 22165 = 1.87 to 1 2013 55517 / 21568 = 2.57 to 1 Ans.(2) Korbin Company Common size Comparative Income Statement For Years Ended December 31, 2015, 2014 and 2013 Particulars 2015 2014 2013 Sales $ 407,048 100% $ 311,832 100% $ 216,400 100% Cost of goods sold 245,043 60% 195,207 63% 138,496 64% Gross Profit 162,005 40% 116,625 37% 77,904 36% Selling Expenses 57,801 14% 43,033 14% 28,565 13% Administrative Expenses 36,634 9% 27,441 9% 17,961 8% Total Expenses 94,435 23% 70,474 23% 46,526 22% Income Before taxes 67,570 17% 46,151 15% 31,378 15% Income taxes 12,568 3% 9,461 3% 6,370 3% Net Income $ 55,002 14% $ 36,690 12% $ 25,008 12% Ans.(3) Korbin Company Common size Comparative Income Statement For Years Ended December 31, 2015, 2014 and 2013 Particulars 2015 2014 2013 Assets: Current Assets $ 53,083 96% $ 41,531 75% $ 55,517 100% Long-Term investments - 0% 700 22% 3,150 100% Plant Asset, Net 100,114 155% 106,529 165% 64,581 100% Total Assets $ 153,197 124% $ 148,760 121% $ 123,248 100% Liabilities and Equity: Current Liabilities $ 22,367 104% $ 22,165 103% $ 21,568 100% Common Stock 70,000 135% 70,000 135% 52,000 100% Other Paid in Capital 8,750 151% 8,750 151% 5,778 100% Retained Earnings 52,080 119% 47,845 109% 43,902 100% Total Liabilities and Equity $ 153,197 124% $ 148,760 121% $ 123,248 100%.

comporative financial statements of Korbin Co mpany follow KORBIN COM.pdf

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Compare and contrast how the nervous and endocrine systems control body function, with emphasis on the mechanisms by which the controlling signals are transferred through the body and the time course of the response(s) and action(s). Describe the structure of each type of hormone, explain how it is created, give an example and explain how that type is transported in the body, and how it generally works in cells. Amine Peptide/protein Steroid Predict the action of a hormone based on the stimuli that release the hormone and the class of hormone. Describe the roles of negative and positive feedback in controlling hormone release. Describe how receptors mediate hormone action. Explain the role of the hypothalamus in the release of anterior and posterior pituitary hormones. Describe the cascade that results in the release of thyroid hormones. Predict the effects of iodine deficiency. Solution Ans: Compare and contrast how the nervous and endocrine systems control body function, with emphasis on the mechanisms by which the controlling signals are transferred through the body and the time course of the response(s) and action(s). The nervous and endocrine systems differ in their means of communication. Nervous system: Electrical and chemical communication. Fast. Stops when stimulus ceases. Neurons quickly adapt and their reponses decline. Endocrine system: Chemical. Slow. Trickle-down effect. Persistent responses. Describe the structure of each type of hormone, explain how it is created, give an example and explain how that type is transported in the body, and how it generally works in cells. Amines – Monoamines synthesized from amino acids by the removal of COOH group, and retain a nitrogen (epinepherine, norepinephrine, dopamine, histamine, serotonin.). Hydrophilic, mixes with blood plasma. Monoamines (thyroid hormone): acts on nuclear receptors. Enters target cells thru ATP dependent transport proteins. Peptide hormones - (chains of 3-200+ amino chains) and Hydrophilic, mixes with blood plasma. Peptides and catecholamines: hydrophilic, stimulates tatrget indirectly. Binds to cell surface receptors, linked to second messenger systems, such as cAMP (cyclic adenosine monophosphate). Steroid hormones- derived from cholesterol. They are hydrophobic, binds to hydrophilic transport proteins (albumins and globulins synthesized by the liver, and prolongs half-lives.). The receptor associates with the target gene, controls transcription. (estrogen and progesterone are good examples of steroid hormone actions). Predict the action of a hormone based on the stimuli that release the hormone and the class of hormone.The stimuli causing endocrine glands to secrete their hormones in direct response to changing blood levels of certain critical ions and nutrients are called hormonal stimuli. Releasing hormone: any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituit.

Compare and contrast how the nervous and endocrine systems control b.pdf

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Answer 1 and 2 in detail Recently, Kathy Smith, a project manager for a large industrial construction organization, was assigned to oversee a multimillion-dollar chemical plant construction project in Southeast Asia. Kathy had earned this assignment after completing a number of smaller construction assignments in North America over the past three years. This was her first overseas assignment and she was eager to make a good impression, particularly given the size and scope of the project. Successfully completing this project would increase her visibility within the organization dramatically and earmark her as a candidate for upper management. Kathy had good project management skills; in particular, she was organized and highly self-motivated. Team members at her last two project assignments used to joke that just trying to keep up with her was a full-time job. Solution 1) Kathy lacks various characteristics of emotional intelligence including empathy, self- awareness, and social skills. To complete the deadlines of the project Kathy forced her team members to work on the weekends. She failed to understand the requirements of people from varying cultural backgrounds. She used the similar approach of project management that she used to adopt in her home country. Furthermore, Kathy lacked sufficient communication skills that resulted in misunderstandings and conflict among her team members. 2) Out of five different dimensions of emotional intelligence, Kathy lacked social skills and empathy element the most. She failed to understand the requirements and feelings of workers. She forced the workers to work on the weekends. It led to the dissatisfaction and passiveness of the workers. Besides this, she also failed to understand the cultural difference among people from different backgrounds.

Answer 1 and 2 in detail Recently, Kathy Smith, a project manager fo.pdf

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Can you complete this paragraph about biodiversity in Madagascar Pa.pdf

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An electron energy diagram Is drawn below. Black represents levels filled with electrons and grey represents empty energy levels This material is a. When hooked to a battery, some electrons in the lower band will. When hooked to a battery, some electrons in the upper band will. i.conductor, move. move ii.semi conductor in the dark, not move, move. iii.semi conductor in the light, move. move. iv.semi-conductor in the light, not move, move. v.insulator, not move, not move. b) Explain your reasoning for your answrr abeve in a lew sentences Include in your answer the fundamental idea behind why some electrons can move when a voltage is applied and why some cannot Solution a) The answer is (iv) The material is a semiconductor in the light. When hooked to a battery some electrons in the lower band will not move. When hooked to a battery some electrons in the upper band will move. b) As is seen in the above figure, there are two bands with an energy gap in between. The lower band (called valence) is alomst filled with few available states. The upper band (conduction band) is partiallty filled. This represents a semiconductor which is light. The photon energy has cause some electrons from the valence band to be excited into the conduction band. For a metal, the conduction and valence band overlap. For an insulator the energy gap is huge and electrons from the valence band cannot be excited into the conduction band. Hence the energy band diagram represents a semiconductor in light. Note that in dark, the electrons do not have enough energy to cross the band gap and go into the conduction band. When hooked to a battery the electrons in the lower band do not move. This is beacuse they are tightly bound to the nucleus of the atom. The electrons in the conduction band however are free electrons and are free to move. Hence when hooked to a battery, the electrons drift due to the applied electric field..

An electron energy diagram Is drawn below. Black represents levels fi.pdf

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As a whole the Krebs cycle, which occurs in the mitochondria of the cell, yields for every two molecules of Acetyl CoA A) 4 molecules of carbon dioxide are liberated by decarboxylation B) 6 NADH + 6H+ C) 2 molecules of guanosine triphosphate are generated by substrate level phosphorylation D) None of the above E) All of the above Electron transport chain, occurs in the inner mitochondrial membrane of human cells and A) The 6 NADH + 6H+ will later yield a maximum of 60 ATP molecules. B) The 6 NADH + 6H+ will later yield a maximum of 18 ATP molecules C) In the cellular respiration, the last electron acceptor of the chain is molecular hydrogen D) A and C E) B and C The first step in the electron transport chain is the transfer of high-energy electrons from NADH + H + tFMN, the first carrier in the chain. The second step in the chain coenzyme Q (Q) picks up an additional H+ from the surrounding aqueous medium A) The 1st statement is true, the 2nd statement is false B) The 1st statement is false, the 2nd statement is true C) Both statements are false D) Both statements are true Of the 36 or 38 APTs produced during aerobic respiration of one glucose molecule A) 2 result from the oxidation of glucose to pyruvic acid B) 6 result from the formation of acetyl CoA C) 24 result from the Krebs cycle D) A and B E) All of the above In glycolysis 4 or 6 of the APTs produced are destined for A) Oxidative phosphorylation in electron transport chain B) Krebs cycle C) Substrate-level phosphorylation D) None of the above E) A and C During aerobic respiration how many ATPs can be generated from one molecule of glucose. A) 3 B) 36 or 38 C) 2 D) 12 As a whole the Krebs cycle, which occurs in the mitochondria of the cell, yields for every two molecules of Acetyl CoA A) 4 molecules of carbon dioxide are liberated by decarboxylation B) 6 NADH + 6H+ C) 2 molecules of guanosine triphosphate are generated by substrate level phosphorylation D) None of the above E) All of the above Electron transport chain, occurs in the inner mitochondrial membrane of human cells and A) The 6 NADH + 6H+ will later yield a maximum of 60 ATP molecules. B) The 6 NADH + 6H+ will later yield a maximum of 18 ATP molecules C) In the cellular respiration, the last electron acceptor of the chain is molecular hydrogen D) A and C E) B and C The first step in the electron transport chain is the transfer of high-energy electrons from NADH + H + tFMN, the first carrier in the chain. The second step in the chain coenzyme Q (Q) picks up an additional H+ from the surrounding aqueous medium A) The 1st statement is true, the 2nd statement is false B) The 1st statement is false, the 2nd statement is true C) Both statements are false D) Both statements are true Of the 36 or 38 APTs produced during aerobic respiration of one glucose molecule A) 2 result from the oxidation of glucose to pyruvic acid B) 6 result from the formation of acetyl CoA C) 24 result from the Krebs cycle D) A and B E) All of the above In g.

As a whole the Krebs cycle, which occurs in the mitochondria of .pdf

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Bacteria that are difficult to grow under laboratory conditions often need to be inoculated into specialized media known as: Selective media Enriched multivalent media none of the above Monovalent Blood agar is often used in microbiology labs as it can be used to isolate resistant bacteria Inhibit certain types of bacteria differentiate between various types of bacteria determine motility The EMB ager plates are used in both water and food tasting procedures. Explain why this particular medium is used? Why is ground beef a better bacterial growth medium than a steak or a roast? A growth medium that can determine if a bacterium contains several different types of enzymes or characteristics differential multitask medium enriched medium selective medium all of the above A quick way to determine if a water source may possibly be contaminated with E. coli is to streak a sample of that water onto. Manito salt agar Phenyl ethyl alcohol agar Simmon\'s Citrate agar Blood agar plate Eosi Solution Answer 12: Bacteria that are difficult to grow under laboratory conditions are inoculated into specialized media known as Enriched media. Enriched media are the media that contains special nutrients specific to the microbe to facilitate its growth. One example of basal media is LB media. An example of enriched media is blood agar. Company policy does not allow us to answer more than one question at a time. Therefore, questions 13 onwards can not be answered at the moment..

Bacteria that are difficult to grow under laboratory conditions often.pdf

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Briefly Description 4 application and 4 Mechanism that is used on a steamboat? And how do these applications and Mechanism is applied on a steamboat? Solution Mechanism: Marine steam engine A marine steam engine is a steam engine that is used to power a ship or boat. Propeller A propeller is a type of fan that transmits power by converting rotational motion into thrust. Paddle steamer A paddle steamer is a steamship or riverboat powered by a steam engine that drives paddle wheels to propel the craft through the water. boiler The boiler holds a quantity of water in such a way that most of the heat from the fire can be transferred to the water. The water boils and gives off steam under pressure, so the boiler has the double purpose of transferring heat and containing pressure. The greater the surface area exposed to the fire, the more heat can be transferred to the water ( and the less wasted up the stack ), and the more steam produced. The best way to create this large surface area in a small space is to fill the space with pipes, or tubes. Therefore the heating surface of all steamboat boilers is made up primarily of tubes..

Briefly Description 4 application and 4 Mechanism that is used on a .pdf

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Biology (ecology) There are ecological implications for areas with a fast doubling time. Using complete sentences describe four ecological implications (affecting both the human populations as well as other organisms on the planet.) Label the four ecological implications A,B,C,and D. Solution The doubling time is the period of time required for a population to double, it is a concept that is applied to growth of a population. The ecological implications for areas with a fast doubling time are as follows: A: Availability of resources like food B: Prevalence of diseases C: Prevalence of predators D: Lack of space.

Biology (ecology)There are ecological implications for areas with .pdf

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2. T or F:Investors are usually in favor of poison pills because they prevent takeovers. 3.T or F: Bondholders never have any control over the actions of a firm. 4.T or F: Stock classes may differ in voting rights,dividend rights, and claims to income during company elimination. Solution 2.False because investors are interested towards wealth maximisation which can be obtained through Takeovers,Mergers & Acquisition 3.True . The bond holders does not have any control over the actions of the Firm 4.True.Stock may differ in voting rights ,dividend rights and claims to income during to company elimination.

2. T or FInvestors are usually in favor of poison pills because the.pdf

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1. All of the following are emerging infectious diseases, except: A. HIV/AIDS B. SARS C. Nipah virus D. Hepatitis B QUESTION 2 As a country becomes healthier, what is most likely to happen regarding childhood mortality? A. Neonatal mortality decreases while under-5 mortality remains the same B. Neonatal deaths account for a larger share of under-5 mortality C. Both neonatal mortality and under-5 mortality remain the same D. Neonatal deaths account for a smaller share of under-5 mortality QUESTION 3 Early adolescence is defined as the period between: A. Ages 9 and 11 B. Ages 9 and 16 C. ages 10 and 12 D. Ages 10 and 14 QUESTION 4 Key factors contributing to the emergence and re-emergence of infectious diseases include: A. War and famine B. Microbial adaptation and change C. Breakdown of public health measures D. All of these are correct. QUESTION 5 Of the leading causes of DALYs for adolescents aged 10–14 years, which is not a leading cause for adolescents aged 15–19 years? A. Asthma B. Diarrheal disease C. Road injury D. Diarrheal disease and road injury QUESTION 6 Reducing the incidence of a disease in a specific area to zero is termed: A. Elimination B. Control C. Eradication D. Extinction QUESTION 7 What are common mental health problems among adolescents? A. Conduct disorders B. Anxiety C. Depression D. All of these are correct. QUESTION 8 What causes the most neonatal deaths globally? A. Preterm birth complications B. Malaria C. Sepsis D. Pneumonia QUESTION 9 What is not a consequence or complication of vitamin A deficiency? A. Asphyxia B. Xerophthalmia C. Immune system compromise D. Measles QUESTION 10 What is not a leading cause of death among adolescents in high-income countries? A. Self-harm B. Lower respiratory infections C. Road injury D. Interpersonal violence QUESTION 11 What is the most cost-effective intervention in low-resource settings to treat diarrhea and prevent its complications and mortality? A. Consumption of large quantities of water B. Oral rehydration therapy C. Antibiotic treatment D. Intravenous fluid administration QUESTION 12 Which WHO region has the highest percentage of adolescents who are current drinkers? A. Africa B. Western Pacific C. Europe D. South-East Asia QUESTION 13 Which intervention is the most appropriate, cost-effective measure for caring for stable, low birthweight infants in very resource-limited settings? A. Kangaroo mother care B. Neonatal incubator C. Feeding through a nasogastric tube D. None of these are correct. QUESTION 14 Which of the following statements about HIV/AID is false? A. New HIV infections occur predominantly in people ages 15–24. B. Circumcised males are less likely to be infected with HIV than uncircumcised males. C. Cambodia faces a generalized epidemic of HIV/AIDS. D. The highest rates of prevalence are in Central, Eastern, and Southern Africa. QUESTION 15 Which region has seen the largest percentage decline in under-5 mortality since 1990? A. Sub-Saharan Africa B. Latin A.

1. All of the following are emerging infectious diseases, exceptA.pdf

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1. explain how the structures of simple squamous, cuboidal and ciliated and non-ciliated columnar epithelium are related to their functions 2. outline the taxonomic scheme, describe four classical and four molecular methods used in phylogeny Solution 1). The epithelial tissues form the sheet like outer covering of the body surfaces and provide protection to the organs. One surface of this epithelial tissue is not bound to anything and produces glandular secretions, also involved in absorption process. The classification of epithelial tissue based upon their shape is given below: 1). Squamous epithelial cells: Thin layer of flattened cells 2). Cuboidal epithelial cells: Cube like shape 3). Columnar epithelial cells: Elongated shape 4). Simple epithelium: Single layer of cells 5). Stratified epithelial cells: Two or more than two layers of cells The structure and function of some of the epithelial tissue is given below: Type of tissue Structure Function 1). Simple squamous Single layer of thin, flatten cells tightly packed with one another. The nuclei are broad and thin. Lines the inside of capillaries of blood vessels and alveoli. Allows the diffusion and filtration of molecules such as gaseous exchange in the alveoli. 2). Simple cuboidal Single layer of cube shaped cells. The nuclei are centrally located and spherical shape. Covers ovaries, glands, linings of kidney tubules. Allow the tubular secretion and tubular reabsorption in the kidneys, secretion of glandular products in the glands. 3). Simple columnar Single layer of elongated cells, nuclei are located near the basement membrane. Some of them are ciliated, and some are non-ciliated. The length of cilia ranges from 7 to 10 µm in length. Linings of digestive organs and uterine tubes. Cilia allows the expulsion mucus, movement of egg cell to the uterus. 4). Stratified columnar Multiple layers of cube shaped cells (usually, 2 to 3 layers) Lines the urethra, pharynx, ducts of exocrine glands. 5). Pseudostratified columnar Multiple layers of cells. The superficial layer is of elongated cells, and the deeper layer layers are cuboidal. Cover the air ways of the respiratory system. The goblet cells secrete mucus and the cilia of these cells sweep the mucus. Type of tissue Structure Function 1). Simple squamous Single layer of thin, flatten cells tightly packed with one another. The nuclei are broad and thin. Lines the inside of capillaries of blood vessels and alveoli. Allows the diffusion and filtration of molecules such as gaseous exchange in the alveoli. 2). Simple cuboidal Single layer of cube shaped cells. The nuclei are centrally located and spherical shape. Covers ovaries, glands, linings of kidney tubules. Allow the tubular secretion and tubular reabsorption in the kidneys, secretion of glandular products in the glands. 3). Simple columnar Single layer of elongated cells, nuclei are located near the basement membrane. Some of them are ciliated, and some are non-ciliated. The length of c.

1. explain how the structures of simple squamous, cuboidal and cilia.pdf

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