Biology Questions

Thioester hydrolysis yielding more energy than O ester hydrolysis is ultimately due to Sulphur being a larger atom than oxygen Bond between S and carbonyl carbon is of lower energy Thioesters are more resonance stabilized Products of O ester hydrolysis have lower degree of solvation than its reactants in water

Supply 50 mg per 20 mL How many mL will be administered A 40 mL B 10 mL C 5 mL D 20 mL Question 10 Order 40 mg Supply 50 mg per 20 mL How many mL will be administered A 40 mL B 16 mL D 20 mL 5 mL

What is the gram per ml percentage of a 2M HCI solution 10 percentage 7 29 percentage 12 4 percentage 4 21 percentage

Order 100 mg Supply 125 mg per 2 mL How many mL will be administered B D A 1 4 mL B 1 5 mL Question 10 D 1 6 mL Order 25 mg Supply 50 mg per mL How many mL will be administered 1 25 mL 0 5 mL 1 5 mL 0 25 mL 0 75 ml

The carboxylation of acetyl CoA to synthesize malonyl COA by acetyl CoA carboxylase requires assistance from Vitamin B5 Vitamin B7 Vitamin K Vitamin D

The net charge of the following biomolecule at physiological pH is O 1 0 2 0 NH

This drug in the picture can treat O arrhythmia Epilepsy Cancer Fever HO N

Which of the following is NOT true When RNA undergoes alkali catalyzed cleavage O 2 OH is converted to 2 alkoxide ions cyclic 5 3 nucleoside monophosphate forms cyclic 2 3 nucleoside monophosphate forms transesterification reaction occurs

Two of the major amino acids used for the synthesis of flavonoids are Phenylalanine and tyrosine Tryptophan and tyrosine Tryptophan and proline Tryptophan and histidine

Suppose a solution containing water sodium and glucose If a voltage is applied to the solution glucose would move 45 In the same direction and speed as sodium In the opposite direction of sodium In the same direction as sodium but faster There would be no net movement of glucose

Which of the following secondary structures would you expect to find on the surface of a globular protein Beta sheet a b and c if the polar and charged amino acid side chains face the surface of the protein Loops between two alpha helices Alpha helix

The net energy requirement for translation of a 4 amino acid long polypeptide chain in terms of ATP will be consider from the point of tRNA charging to the release of the polypeptide chain 20 17 19 W

Which of the following polymer is intracellular Keratan sulfate Heparin sulfate Heparan sulfate

A 15 0 B 1500 0 1 5 D 0 15 Question 6 Order 20 mg Supply 10 mg per tablet How many tablets will be administered A 1 5 tablets B 1 tablet C 2 tablets D 0 5 tablet

For class I MHC which of the following statements are correct P They are expressed on all nucleated cells Q They are made up of a heavy chain and a light chain R They are essential for viral antigen recognition by cytotoxic cells S The genes for HLA class I molecules are located on chromosome 6 and 15 P R and S P and R Q and R Rand O

uring the turn of the twentieth century the federal government began to go after what in the ties instead of political machines O Tax evaders O Corruption O Those enrolled in top government position

How many tablets will be administered A 0 5 tablet B 1 5 tablets C 1 tablet D 4 tablets Question 8 Order 1 g Supply 250 mg per tablet How many tablets will be administered A 1 tablet B 4 tablets C 1 5 tablets

Supply 1 25 mg per tablet How many tablets will be administered A 2 tablets B 3 tablets C 1 tablet D 4 tablets Question 4 Order 0 625 mg Supply 1 25 mg per tablet How many tablets will be administered A 4 tablets B 2 tablets 1 tablet

What does this graph say about urban and rural populations in the United States America Becomes Urbanized Population in millions 70 60 50 40 30 20 10 0 1860 1870 1880 1890 1900 1910 1920 1930 Year Source U S Census adapted O Population growth slowed down because of the Civil War O Rural population was much more than urban population In the 1930 Urban Rural

How many tablets will be administered B 1 5 tablets 3 5 tablets A Question 6 B 2 tablets Order 1 5 mg Supply 2 mg per mL How many mL will be administered G 2 5 tablets 1 5 mL 1 75 mL 1 mL

Why did immigrants decide to move to the cities in that period O To have better cultural exchange opportunities O To have access to more job opportunities

7 What you would expect to observe not observe if the following modifications to the Lab 4 protocol see Part I were made Provide a brief explanation for your observation a Colchicine a microtubule depolymerizing agent was fed to adult female flies expressing the kinesin galactosidase fusion protein 2 marks

The Tammany Hall leader from the West Side of Manhattan in late nineteenth century and early twentieth centuries was Tammy Hall George Washington Plunkitt

Approximately how many would be immigrants died on Ellis Island while being held in the hospital Facilities Three Thousand O Millions Five Hundred

IS TO AS IS TO City Boss Which of the following BEST completes the analogy O Securing votes Ward Boss Granting voters favors Granting voters favors Ward Boss Controlling political activities in city O Controlling political activities in city Local precinct workers Securing votes

Most T4 is only converted to T3 inside of the target cell True False

corporate expense commuting and transportation while improving opportunities for jobs education housing and transportation Living in cities permits individuals and families to take advantage of the opportunities of proximity diversity and marketplace competition Increasing industrialization outpaced the supply of laborers able or willing to work in dangerous low paying and dead end jobs However the demand for low or unskilled jobs drove wages up and attracted waves of Irish Italian Polish Russian and other immigrants who could earn more in America than in their homelands Which of the following statements about immigration to the United States during the 19th century is true O Immigration was encouraged by labor union leaders O Agricultural growth supported unlimited immigration O Increasing industrialization led to a demand for cheap immigrant labor

ne forbade Asian immigrants from becoming naturalized citizens of the United States O Immigration Act of 1924 O Alien Land Law of 1913 O Naturalization Act of 1790

What was one of the main urbanization problems in the 1800s O Industrialization O Sanitation

Study the Assured journey of only 10 15 days Greatly improved conditions for the emigrants O Ferry and Harkin Shipping Which of the following best completes the diagram Comfort and adequate food O Holland and Baltimore Steam Shipping

Under what condition did most English immigrants come to the United States under during th American Colonial Period Indentured servants Slavo ou

As GFR rises the increase in choose your answer is released in response to this increase is detected by the choose your answer cells and choose your answer

In the presence of choose your answer which inhibits the development of the choose your answer the development the choose your answer the embryonic indifferent gonad develops into testes Testes release choose your answer duct Testes also release choose your answer duct v which choose your answer

1 2 3 testosterone to induce Sertoli cells to up regulate sperm production

immigrants joined the Union Army in large numbers O Danish O European

The diagram below shows the bond between Lithium Li and Fluorine F Li F O Lithium gives Fluorine an electron to create a covalent bond Lithium gives Fluorine an electron to create an ionic bond O Lithium shares an electron with Fluorine to create a covalent bond O Lithium shares an electron with Fluorine to create an ionic bond

What was instituted by the United States Congress in 1907 O Immigration Commission The Dillingham Commission

2 Use a flow chart or a diagram to describe the passage of air from the nasal cavity to the alveoli where gas exchange takes place Include the following terms in your answer Terminology Intercostal muscles diaphragm Contraction Relaxation Thoracic cavity Nose Nasal cavity Cilia Mouth Oxygen Carbon dioxide Trachea Bronchii Bronchioles Alveoli Lungs Checkmark

entrepreneurs In the area The population boom in California caused by the Gold Rush had Immediate effects both positive and negative Although it only became part of the United States in 1848 California s population had grown so swiftly It was soon able to apply for statehood and it was admitted to the union in September of 1850 The sudden influx of outsiders made Californios and regional Native Americans Instant ethnic minorities and they were subject to severe discrimination from the new settlers Although its farming and ranching businesses boomed California s geographical Isolation made trade difficult It was not until the transcontinental rall road was completed in 1869 that businesses based on trade could flourish What happened to the Californios who dominated California prior to the gold rush of 1849 O Most died due to epidemic diseases brought in by the miners O Many lost status and land and were excluded from the prosperity of the statehood period O The ones who could speak English adapted well and continued to dominate real estate ownership

In which structure does fertilization take place oviduct cervix ovary uterus

How can injecting a person with a vaccine of bacteria inactivated by high heat protect that individual from a disease The proteins of the killed bacteria stimulate the production of antibodies which can be utilized later in response to infection O The proteins of the killed bacteria give the person a mild form of the disease which conditions the body not to respond to later infection The proteins of the killed bacteria bind with receptors in the body so that live bacteria can t bind with them later O The proteins of the killed bacteria remain in the body and live bacteria later prey on them instead of live tissues

Gland I Releases a fluid that the urethra track right before ejaculation AKA Precum Pre ejaculation

Which of the following statements is are TRUE 1 In May 1872 Congress passed the Amnesty Act in which about 160 000 former Confederates were given the right to vote and hold political office II In the same year Congress allowed the Freedmen s Bureau to expire iii Both actions weakened Republican power and allowed Southern Democrats to regain political power O Statements I II and III O Statements II and III Statements I and II

Left ventricle Left atrium Right atrium Right ventricle Choose Receives blood from the pulmonary veins Pumps blood to the pulmonary arteries Pumps blood to the aorta Receives blood from the vena cava Choose Choose

a List two functions of the circulatory system b Name the four chambers of the heart c Use a flow chart or a diagram to explain how blood gets to and from the lungs and what happens to the blood while it is in the lungs Include the following terms in your answer Terminology Lungs Arteries Veins Deoxygenated blood Oxygenated blood Right atrium Left atrium Right ventricle Left ventricle Superior and inferior vena cava Pulmonary artery Pulmonary vein Septum Checkmark

Sexual reproduction allows animals to conserve resources and reproduce only during optimal conditions guarantees that both parents will provide care for each offspring O enables males and females to remain isolated from each other while rapidly colonizing habitats can produce diverse phenotypes that may enhance survival of a population in a changing environment

part of their body Researchers injected bark scorpion venom into the hind paws of the common house mouse and the southern grasshopper mouse they also injected 0 9 saline essentially salt water as a control The researchers then observed how long the mice licked their paws Which of the data sets depicted below do you think the researchers collected A 300 Paw licking sec 200 Paw licking sec 100 C 300 0 200 100 O 0 A B O 0 9 Saline 0 25 g L venom House mouse Grasshopper mouse 0 9 Saline 10 25 g l venom House mouse Grasshopper mouse B 300 Paw licking sec 200 Paw licking sec 100 0 D 300 200 100 0 0 9 Saline 0 25 g uL venom 11 House mouse Grasshopper mouse 0 9 Saline 0 25 g uL venom House mouse Grasshopper mouse

Assertion A To curtail Klan violence and Democratic intimidation Congress passed a series c Enforcement Acts in 1870 and 1871 Reason R One act provided for the federal supervision of elections in Southern states while the other gav the president the power to use federal troops in areas where the Klan was active Which of the following is TRUE for the above statements Both A and R are true but R is not the correct explanation of A Both A and R are true and R is the correct explanation of A

Which of the following immigration event happened between 1820 and 1930 3 5 million British and 4 5 million Irish entered America O A million Germans left Germany and settled mostly in the Midwest

brought the Iberian Peninsula the circled area under Muslim control Muhammad A B The Rashidun Caliphate C The Umayyad Caliphate The Spread of Islam Use the map below to answer the question Map of the spread of Islam 18 The Early Spread of Islam 632 750 AD Expansion during Umayyad Caliphate 661 750