Questions

How do the carbon dioxide molecules contribute to global warming They absorb infrared radiation emitted from the Earth and redistribute it in different directions over the Earth s surface Carbon dioxide naturally emits heat energy The large number of carbon dioxide molecules in the atmosphere creates a layer surrounding Earth They react with other greenhouse gases to cause an exothermic reaction generating heat

is a change in atmospheric conditions over minutes to days whereas is the average of conditions over decades Global cooling global warming Storm formation hurricane formation Climate weather Weather climate

If y 5x 7 compute y 0 y 0

Macmillan Learning An environmental scientist developed a new analytical method for the determination of cadmium Cd2 in mussels To validate the method the researcher measured the Cd2 concentration in standard reference material SRM 2976 that is known to contain 0 82 0 16 ppm Cd2 Five replicate measurements of the SRM were obtained using the new method giving values of 0 791 0 747 0 831 0 842 and 0 764 ppm Cd Calculate the mean x standard deviation s and the 95 confidence interval A list of t values can be found in the Student s 1 table x ppm ppm

For each of the data sets find the range and the standard deviation The measured concentration of a sodium hydroxide NaOH solution 0 01009 M 0 01013 M 0 00994 M 0 01018 M and 0 01001 M range M standard deviation The percentage of iron determined in an ore sample 21 7 18 6 16 7 and 19 3 range standard deviation

6 What is the molecular weight of the large subunit of RuB A 14000 Daltons B 55000 Daltons C 37 kDa D 50 kDa 7 Which type of buffer is used during the elution step in ion exchange chromatography to displace proteins from the beads A High pH buffer B Low salt buffer C High salt buffer D Organic solvent 8 What is the purpose of heating samples with sample buffer before protein electrophoresis A To precipitate the proteins B To renature the proteins C To denature the proteins and reduce disulfide bonds D To sterilize the samples True False Questions 1 RuBisCO is an efficient enzyme with high CO2 fixation rates True False Secondary structure of proteins involves hydrogen bonding between polypeptide chains True False 2 In ion exchange chromatography the stationary phase is typically nonpolar True False 3 Proteins can be separated based on their solubility differences using ammonium sulfate precipitation True False Calculation Questions 1 If you have a protein solution of 100 mL how much ammonium sulfate in gram is needed to reach a saturation point of 37 given that the required amount is 210 g L 2 For a 50 saturation of ammonium sulfate how many grams would be neede per liter

6 What is the molecular weight of the large subunit of RuBisCO A 14000 Daltons B 55000 Daltons C 37 kDa D 50 kDa 7 Which type of buffer is used during the elution step in ion exchange chromatography to displace proteins from the beads A High pH buffer B Low salt buffer C High salt buffer D Organic solvent 8 What is the purpose of heating samples with sample buffer before protein electrophoresis A To precipitate the proteins B To renature the proteins C To denature the proteins and reduce disulfide bonds D To sterilize the samples

5 Which factor is NOT used to distinguish two different proteins in purificatio processes A Enzymatic activity B Molecular weight C Solubility D Charge

Calculation Qu 1 If you have a protein solution of 100 mL how much ammonium is needed to reach a saturation point of 37 given that the required amount is 210 g L 2 For a 50 saturation of ammonium sulfate how many grams would be needed per liter

D Protein synthes 2 During ion exchange chromatography why are proteins with different charges separated A Polarity B Ionic strength C Molecular weight D Hydrophobic interactions ofor to

1 What is the primary function of Ribulose 1 5 bisphosphate carboxylase oxy RuBisCO in plants A DNA replication B Lipid metabolism C Photosynthesis

Which of the following maintains the patency openness of the trachea Surface tension of water C shaped cartilage rings Surfactant production Skeletal muscle layer 10 1 point Which of the following is not part of the upper respiratory system Paranasal sinuses Pharynx Larynx Nasal cavity

I point The nose serves all of the following functions EXCEPT O O O O Cleansing the air As the direct initiator of the cough reflex Warming and humidifying the air As a passageway for air movement 14 1 point Which of the following statements is correct Bronchioles have more smooth muscle in their walls than bronchi Bronchioles have more cilia lining them than bronchi Bronchioles are supported by cartilage rings Bronchi are supported by elastic fibers

Which of the following statements regarding antibody production is are correct Memory B cells are heavily involved in making antibodies during the primary immune response During the primary immune response IgM antibodies are made first followed by IgG antibodies Antibody production takes longer to begin during the primary immune response than the secondary immune response Total antibody levels are lower during the secondary immune response 7 1 point Which class of antibody is produced by memory B cells after they differentiate into plasma cells IgM IgG IgE IgA

B E Right lung Trachea Pharynx Primary bronchus Carina Larynx A C D Left lung Diaphragm D A C B E

6 7 19 7 cm P 8 m A 12 cm 6 cm X P x 8 cm A

3 3 10 3y r 3 11 2x 0 A 1 3 4 4 4x 4y 12 0 3y 3x 3 B 1 3 c 1 3 D 1 3 A 2 2 C 2 2 B 2 2 D 1 2 5 x 3 2y 21 83 22 6 A 5 44 C 4 5 B 1 4 D 4 5 6 0 790y 380x 4108y 1976x 0 A 43 B 43 8 C Infinite number of solutions D 8 43

A factory received a shipment of 24 bolts and the vendor who sold the items knows there are 7 bolts in the shipment that are defective Before the receiving foreman accepts the delivery he samples the shipment and if too many of the bolts in the sample are defective he will refuse the shipment For each of the following give your responses as reduced fractions If a sample of 7 bolts is selected find the probability that all in the sample are defective If a sample of 7 bolts is selected find the probability that none in the sample are defective

A group of Mathematics faculty at the local college consists of 7 women and 6 men Four people are to be selected to go to a conference How many different ways can a group of four people be selected from this group of 13 In how many ways can four women be chosen from the group of 7 women What is the probability that all women will be chosen to attend the conference Enter a reduced fraction or decimal

Selve each system by graphing 5 5 2xy 4 x 3y 9 6 6 41 4y 12 Zoom A 3 1 2 3 2 3 D 1 2 A 5 1 1 5 2 C No solution D Infinite mamber of solutions Use graphing to find the s coordinate of the solution to each system

3 3 10 y x 3y 11 2x 0 A 1 3 4 4 4x 4y 12 0 3y 3x 3 B 1 3 A 2 2 B 2 2 C 1 3 D 1 3 C 2 2 D 1 2 6 5 x 3 2y 2x 8y 22 A 5 4 B 1 4 C 4 5 D 4 5 6 0 790y 380x 4108y 1976x 0 A 8 43 B 43 8 C Infinite number of solutions D 8 43

Solve each system by elimination 1 2x 16 y 8y 8x 8 A 3 4 B 4 3 C 3 4 D 3 4 2 2 4y 4x 8 4x 8 4y A 2 4 B 4 2 C Infinite number of solutions D 2 4

Genetics counselors assess individual or family risk for a variety of inherited conditions such as genetic disorders and birth defects They provide information and support to other healthcare providers or to individuals and families concerned with the risk of inherited conditions They work in university medical centers private and public hospitals and physicians offices They work with families patients and other medical professionals Most work full time and typically need a master s degree The median annual wage for genetic counselors was 67 500 in May 2014 SOURCE Bureau of Labor and Statistics U S Department of Labor Occupational Outlook Handbook 2016 2017 Edition Genetics Counselors Sickle cell disease is an inherited blood disorder that affects red blood cells Since it is a recessive disorder a person inheriting two sickle cell genes will have the disease whereas a person inheriting only one sickle cell gene will be healthy but will carry the sickle cell trait If both parents have the sickle cell trait and it is equally likely whether a parent passes on the gene for sickle cell trait determine the probability that 1 an offspring will have the disease 2 an offspring will have the sickle cell trait 3 an offspring will have neither sickle cell anemia nor the sickle cell trait

Contestants A B C and D are in a 10K race How many different ways can a race with 4 runners be completed Assume there is no tie In how many ways can B finish first and A finish second What is the probability that B finishes first and A finishes second Enter a reduced fraction or decimal

A hacker is trying to guess someone s password The hacker knows somehow that the password is 10 characters long and that each character is either a lowercase letter a b c etc an uppercase letter A B C etc or a numerical digit 0 1 2 3 4 5 6 7 8 or 9 Assume that the hacker makes random guesses What is the probability that the hacker guesses the password on his first try Enter your answer as a decimal or a fraction not a percentage

5 Match the alternative hypothesis shown below with its graph to the right Then state the null hypothesis and sketch its graph H2 3 Match the alternative hypothesis to its graph Choose the correct graph below OA OB C State the null hypothesis Ho 1 Sketch a graph of the null hypothesis Choose the correct graph below A Oc OE 000 WHA 1 O OB OD

d Joachim a third student noted that the confidence interval in part a gives plausible values of the parameter as an interval between two values He suggested that they develop a one sided confidence interval because they were only concerned with whether the number 6 was landing face up more often than expected not less often The one sided interval will determine a value L such that all plausible 1 values of p are greater than L The formula for L is L p n i Determine the values of z needed to create the one sided 95 percent confidence interval Then calculate the value of L ii Do the results of Joachim s one sided confidence interval agree with results of Aurelia s significance test in part b Explain your reasoning

From a group of 9 people you randomly select 3 of them What is the probability that they are the 3 oldest people in the group Give your answer as a fraction

A couple plans to have three children What is the probability that a they have all boys b thou haun

b Aurelia another student suggested they conduct a significance test to investigate the claim She tested the hypotheses Ho p versus Ha p at the significance level of a 0 05 She obtained a test statistic of 1 83 with a p value of 0 033 Do the results of the significance test agree with the results of Clarke s confidence interval in part a Explain your reasoning

Determine the volume of each of the composite solids below 9 11 4 cm 6 cm 13 cm 5 cm 5 6 cm 6 cm 2 cm 4 in 4 in 6 in 5 in

An American roulette wheel has 38 slots two slots are numbered 0 and 00 and the remaining slots are numbered from 1 to 36 Find the probability that the ball lands in an even numbered slot not including 0 or 00 Your answer is

In a brand recognition study 862 consumers knew of Costco and 34 did not Use these results to estimate the probability that a randomly selected consumer will recognize Costco Report the answer as a percent rounded to one decimal place accuracy You need not enter the symbol prob

Listen Select all of the following that are true based on the figure below 100 Male frequency 50 50 O 18 20 22 22 24 26 28 30 32 34 Incubator temperature C Eggs incubated at low temps produce males There is a 50 50 chance that either a male or female turtle will be born at 18 or 34 C High temperatures produce female turtles There is a chance either a male or female can be born between 28 30 C Nest temperature does not determine sex Eggs incubated at lower temps produce females

Select all of the ways in which paedomorphosis affects the Common mud puppy salamander Necturus maculosus Remains aquatic Primarily breathes through lungs Gill retention Juvenile features in mature stages Can go from aquatic terrstrial

AOTD How do tree hole frogs adjust their calls within tree holes By adjusting the pitch of their calls By changing their physical appearance By changing their body temperature By increasing their vocal sac size

Assume the 12 000 Treasury bill 6 for 13 weeks Calculate the effective rate of interest Note Use calendar year Round your answer to the nearest hundredth percent Effective rate of interest

There are some excellent free personal finance apps available Mint com Good Budget Mvelopes BillGuard PocketExpense HomeBudget and Expensify After using Mint com you realize you need to pay off one of your high interest loans to reduce your interest expense You decide to discount a 6 250 340 day note at 3 to your bank at a discount rate of 4 0 on day 220 What ar your proceeds Note Round your final answer to the nearest whole number Proceeds

Ron Prentice bought goods from Shelly Katz On Sept 12 Shelly gave Ron a time extension on his bill by accepting a 2 700 8 19 day note On Dec 16 Shelly discounted the note at Roseville Bank at 8 Use Days in a year table What proceeds does Shelly Katz receive Note Use 360 days a year Do not round intermediate calculations Round your answer to the nearest cent Proceeds received

If v represents the velocity or speed of the car when the brakes are first applied and d represents the distance it takes for the car to come to a complete stop then we can write a formula for the braking distance of a car with good tires on a level road d 0 0194v v is measured in ft s and d is measured in ft Note ft is a standard abbreviation for feet and s is a standard abbreviation for seconds Match each of the five quantities equations below with a reasonable interpretation from the list of choices below that You do not have to use all of the choices from the list d 40 d 50 d 50 d 40 d 60 d 50 d a 300 a A car traveling a ft s will come to a complete stop in 300 ft b The change in braking distance required if the speed increased from 40 ft s to 50 ft s c The distance it takes for a car traveling 40 ft s to come to a complete stop

On July 24 Sheffield Company discounted at Sunshine Bank a 7 650 maturity value 131 day note dated April 16 Sunshine s discount rate was 10 Use Days in a year table What proceeds did Sheffield Company receive Note Use 360 days a year Do not round intermediate calculations Proceeds received

Miranda s financial aid stipulates that her tuition not exceed 1200 If her college charges a 90 registration fee for the term plus 475 per course what is the greatest number of courses for which Miranda can register Miranda can register for at most courses Your answer should be a whole number

Determine the most appropriate translation for the following question 67 is what percent of 28 Choose the correct answer below OA 67 p 28 OC 28 p 67 OE 28 67 b OB a 28 67 OD a 67 28 OF 67 28 b

What number is 80 of 740 is 80 of 740 Type an integer or a decimal

Determine the most appropriate translation for the following question 15 is 85 of what number Choose the correct answer below OA 85 15 b OC 85 p 15 OE 15 p 85 OB a 85 15 OD a 15 85 OF 15 85 b

What percent of 80 is 16 of 80 is 16 Type an integer or a decimal

Solve G vk for k C 9

ASK YO The point slope form of the equation of a line is y y m x x1 where m is the slope and x1 y is a point on the line Write the equation of the line in point slope fo perpendicular to the graph of y x 7 passing through the point 6 9 y 2x 21

Write an equation of the perpendicular bisector of JK where J 8 4 and K 4 4 y 4

Choose the equation that correctly illustrates the following property or law Associative law of multiplication Choose the correct answer below OA 4 9 9 4 4 4 1 17 OB 7 4 OC 7 9 9 7 OD 7 0 7 9