Biology Questions

Opportunity cost There is no such thing as Microeconomics Fallacy of composition Economics was originally invented for studying the economy as a whole Question 22 3 points Listen Which of the following activities is excluded from GDP causing GDP to understate a nation s production Goods and services produced by firms Goods and services produced by the government Goods and services produced in the underground economy black market Goods and services purchased by foreigners

3 years 12 years 32 years 24 years 6 years Question 16 3 points Listen Compared to last year the exports for a small country have decreased by 2 million and the imports have decreased by 6 million If no other line items for GDP change how will GDP change based on the events above GDP will decrease by 4 million GDP will increase by 4 million GDP will decrease by 8 million by 8 million

The level of the stock market The level of technological progress The level of aggregate spending expenditure The level of available resources The level of export Question 13 3 points Listen What is a role of prices in the market system Prices can act as a signal incentive to both producers and consumers Prices are used to efficiently distribute goods and resources throughout the economy Prices provide a standard of measure of value throughout the world

2 The diagram below represents the life cycle of a frog Fertilized egg Adult frog Tadpole go This diagram shows that in frogs 1 methods of sexual reproduction depend on the species 2 metabolism is the sum of all chemical reactions 3 body structures change during development 4 offspring always look like the adult

Referring to the accompanying data what is GDP Types of Expenditures Consumer durable goods Consumer nondurable consumer goods Government consumption Business fixed investment Residential investment Government investment Exports Inventory investment Transfer payments Consumer services Tax revenues Imports R D In billion of dollars 200 400 200 100 100 200 100 50 50 600 300 200 50

Inflation Tax revenues Imports Unemployment Private debt Question 18 3 points Listen When using the income approach what is NOT considered to calculate GDP Rent Interests Net Exports Wages fite

Buying a newly built house Groceries Vehicle for personal use Education Medical treatment Question 24 3 points Listen What does NOT cause economic growth according to the production function Capital goods production Technological innovations War deration

in that year Why Real GDP has gone up by 5 There was 5 inflation There was 5 population growth The standard of living has gone up by 5 Question 20 3 points Listen What is an example of command in the market system Taxation Bonuses Holiday gift giving

of unemployment Full Employment is zero rate of unemployment If an employee has overqualified education experience or skills he or she is underemployed Underemployment rate is always higher than unemployment rate O US adopts employment at will doctrine which makes it easier for US companie to hire and fire workers Question 26 3 points Listen Real GDP is calculated as to have the output in each year multiplied by the prices in the base year Onominal GDP divided by each year s prices the output in each year multiplied by each year s prices

Homeless Stay at home parents Full time students Part time employees Retirees Question 30 3 points 4Listen Suppose a small economy produce 400 billion GDP in year one In year two 420 billion GDP was produced What is the growth rate of GDP for the country in year 2 4 5 1 10

Consider Learning Materials 5 as well as the other learning materials and instructor presentations both recorded and live from the structural wave module Respond to this prompt in 250 300 words How have we gone from the success of the Sanitation Movement to stories like those found in readings 4 and 5 in Learning Materials 5 Rural Talk Water the hidden challenge in rural NCLinks to an external site Mention at least one of the readings from Learning Materials 5 Don t forget to provide the reference and citation if necessary Ctrl

US government US businesses Foreigners Question 28 3 points 4 Listen What is the structural unemployment O George used to work in an automotive assembly plant He was laid off six months ago as the economy weakened He expects to return to work when national economic conditions improve Jeanette worked for a company that produces manufacturing goods She recently lost her job when the company moved the factory overseas Sarah moved to a new place and is currently looking for a job botter in that better fits h

A peak in the business cycle is a temporary minimum point or real GDP occurs when the inflation rate is its lowest O occurs when the unemployment rate is its greatest is a temporary maximum point of real GDP

Can you change your identity To what extent does the speaker change their Fy identity Your in change for

expands from 14 to 15 million people from one year to the next Over the year real GDP per capita has decreased by 533 per person decreased by 25 per person increased by 533 per person increased by 25 per person Question 33 3 points 4 Listen What is NOT a correct statement about investment in economics Acquiring capital goods is investment The opposite word for investment is consumption Investment increases labor productivity and productive capacity Purchasing financial assets i e company share is investment

1 Draw an example of a human cell and label the subcellular components Including all components discussed in lecture 2 In a sentence or two explain define each subcellular component in your drawing 3 Create at least two analogies to explain the function or general function of some or all parts of the cell

Match the type of muscle with the appropriate description Drag the appropriate items to their respective bins Striated and voluntary Cardiac Attached to bones Found only in the heart Striated and involuntary Smooth In walls of hollow internal organs Long multinucleated cells Spindle shaped cells Skeletal Reset Short branched ce with intercalated dis

After biochemical fractionation to collect membranes from the vacuole and the endoplasmic reticulum only the ER membranes allow passage of the Ca2 ions What is the most likely explanation The membranes must have different lipid and different protein composition different lipid composition different carbohydrate composition different protein composition

ssion S a researcher and medical doctor you make several observations about the appear atients that you see Bacteria are always associated with ulcers Ulcers are cured by antibiotics Cured only when bacteria are eradicated otherwise chronic ich of the following would be the correct application of Koch s postulates 3 pts 1 Certain bacteria are always associated with an ulcer and these are not found in individuals without ulcers 2 These bacteria have been isolated from patients with an ulcer and grown in pure culture 3 When these bacteria are introduced to a new host an ulcer occurs 4 The same bacteria are recovered from the individual with the ulcer 1 Certain bacteria are sometimes associated with an ulcer and these are usually not found in ndividuals without ulcers 2 These bacteria have been isolated from patients with an ulcer and grown in pure culture 3 When these bacteria are introduced to a new host an ulcer occurs in most ndividuals 4 The same bacteria are recovered from the individual with the ulcer Certain bacteria have been isolated from patients with an ulcer and grown in pure culture 2 hese bacteria are sometimes associated with an ulcer and these are usually not found in dividuals without ulcers 3 When these bacteria are introduced to a new host an ulcer occurs 4 he same bacteria are recovered from the individual with the ulcer

sten Cholesterol is a 11 which terpene is the basis for many animal and plant vitamins fatty acid functions in energy storage steroid is the basis for many animal and plant hormones steroid is a component of eukaryotic membranes and is the basis for many animal and plant

Triacylglycerols Pectins Steroids Fatty acids Question 2 1 point Listen Membranes from cells grown in media enriched with stearate are less fluid than normal membranes This is because the cultured membranes probably have fewer sterols compared to normal membranes the cultured membranes have more unsaturated fatty acids compared to normal membranes the cultured membranes have a lower transition temperature compared to normal membranes ultured membranes have more saturated fatty acids compared to normal

You want to recreate the experiment by Louis Pasteur so you take an environmental sample boil it in water to kill microbes but you find microbial growth occurred anyway Why 2 pts A The presence of endospores abiewola merio eoa B The presence of fruiting bodies of bacteria C The presence of anaerobic bacteria The presence of some microbes by spontaneous generation due

The most prominent lipids in animal cell membranes are Ophospholipids O cholesterol O cerebrosides glycolipids

Of the following molecules which would you predict diffuses most readily across membranes Water Hydrogen ions Oxygen Sodium ions

Which of the following is not one of the six classes of lipids Triacylglycerols Pectins Steroids Fatty acids

How can weak acids and weak bases cause pH stress to cells 2 pts A At certain pHs both weak acids or weak bases will be uncharged and thus are small uncharged molecules that can diffuse across a membrane and cause pH stress inside the cell 5 Only weak acids can cause stress by diffusing across a membrane at low pH Weak acids and weak bases do not cause stress If a cell has transporters that are not well regulated weak acids or weak bases can accumulate inside the cells and cause stress

fluidity fatty acids have Unsaturated no double bonds Unsaturated double bonds Saturated no double bonds Saturated double bonds and contribute to increased membrane

Each of the following is a type of cell cell junctions except adhesive O tight Ogap All of the above

Listen The term amphipathic describes the characteristic of some molecules that have two polar regions only a single polar region both a polar and a nonpolar region two nonpolar regions

find any channel proteins specific of ATP you find that the organism can still transport potassium However you also Na is also moved out of the cell at this time and there is usually a high concentration of sodium ifl cell What is the mechanism of potassium transport in this bacterium 3 pts A Group translocation B Diffusion C Symport Antiport 10 You have isolated a bacterium from the rumen of a cow and wish to know how it transports glucose into the organism is grown in media in the presence and absence of inhibitors of ABC transporters The the cell You perform an experiment that shows uptake of radioactively labeled glucose is equal when concentrations of major ions such as potassium and sodium do not change in concentration inside the cell as glucose is taken up You know that the concentration of glucose is low in the environment and so is higher in the cell than in the environment What is the mechanism of glucose transport in this cell 3 pts A Group translocation B Diffusion 11 You are studying gut microbes and have several in culture Your first step in characterizing these microbes indicate most have two lipid bilayer membranes separated by peptidoglycan There are also porin A Gram negative B Gram positive C Archaea D Mycobacteria C Antiporter D ABC transporter 12 You are studying life forms in extreme environments and you have discovered a microorganism with cardiolipin hopanoids and ester linkages in the membrane It also has teichoic acids galactans and phenolic glycolipids in the cell wall In addition it has a porin similar to OmpA This microorganism is most likely a type of 2 pts A Mycobacteria B Gram positive C Gram negative D Archaea 13 You have isolated two novel archaea that you name M tardis and M palustre Both have a proteinaceous S layer and no pseudomurein cell wall Based on your knowledge of Gram staining predict how these microbes will stain and for which type of bacteria they might get confused 2 pts A Pink and Gram positive B Pink and Gram negative e Purple and Gram positive D Purple and Gram negative 14 In order for septation to occur which process must finish first 2 pts A Transcription B Translation C DNA Replication D Cell Wall Synthesis

20 You are measuring growth in a bacterial culture The number of viable cells remains constant and when you check the medium you find that the carbon source has been used up In which phase of growth is the culture 2 pts A Stationary phase B Lag phase C Log phase D Death phase Use the following for next 2 questions A death phase B lag phase C log phase D stationary phase The recipe for MacConkey agar is given below MacConkey agar is often used to differentiate E coli from other on peptone and appear white Be sure to read the function of all ingredients in the media Gram negative rods because E coli can ferment lactose and produces acid Other Gram negative rods grow Ingredient Peptone Lactose ase would penicillin an antibiotic that inhibits cell wall synthesis be most effective Bile salts NaCl Neutral red Crystal violet Agar pagin efalumb Function Nutrient source C and fermentation source inhibits growth of Gram positive cells Major metal pH indicator red at low pH clear at neutral pH inhibits growth of gram positive cells Solidifying agent Amount 17 g 10 g 1 5 g 21 What types of media is MacConkey agar from this list pick all that apply complex defined selective differential Why 5 pts 5 g 0 03 g 0 001 g 13 5 g via 8 0 22 Now suppose you streaked E coli on the left half of a MacConkey Agar plate and Pseudomonas aeruginosa on the other What describes what that plate would look like after an appropriate incubation period and why would it look that way Hint Pseudomonas is a Gram negative rod that cannot ferment

Hemoglobin is a protein that is destined to be exported from the cell in which it was created What is the path of hemoglobin from creation to export free ribosome vessicle to golgi apparatus vessicle to plasma membrane free ribosome chaperonin enzymes vessicle to plasma membrane exported from cell bound ribosome on Rough ER modification in Rough ER vessicle to Golgi apparatus modification in Golgi apparatus vessicle to plasma membrane exported from cell bound ribosome on Smooth ER modification in Smooth ER vessicle to plasma membrane export from cell

The Monroe Doctrine was passed to deal with the issue of Foreign Policy Asia Trade Asia Foreign Policy Europe Trade Furone between the United States and

cutting tropical trees is A is sustainable because new forces replace old forces within a few years B is not sustainable because extensive cutting causes runoff of rain to overfill aquifers c is sustainable because net primary production increases with a rapid regowth of plants d is sustainable as long as the rat of removal equals the rate of recovery e is sustainable because it decreases biodiversity

What two people did Jefferson assign to map out and explore territory reaching all the way to the west coast of North America Lois and Clark Clark and Sacajawea Mayweather and Johnson Lewis and Clark

Which of the following statements about gastropods is FALSE Torsion creates a sanitation problem because it moves the mantle cavity to the anterior All gastropods undergo torsion during development The evolution of the conispiral shell eventually led to the loss of the gills on one side of the body Coiling involves a complete 180 degree rotation of the shell and visceral mass with respect to the head and foot

Match the structures with the correct function Note that not all functions will be used pneumostome crystalline style siphuncle metanephridia 1 sensation 2 protection 3 feeding 4 reproduction 5 respiration 6 excretion osmoregulation 7 buoyancy control

Bivalvia Polyplacophora Gastropoda Cephalopoda Question 9 1 point D If a drug was administered to the chromatophores of a cephalopod mollusk that caused the radial muscles to completely relax what impact would this have Listen the chromatophores would open and the animal would appear darker in color ad the animal would appear lighter in color

only a diffuse subepidermal nerve plexus underneath the ventral skin a simple brain of ganglion cells leading to a ladder type nerve network only sensory and motor neurons but no association neurons the first complex central nervous system no cells since they were lost along with other unnecessary systems in parasites Question 2 1 point Listen Which stages of the life cycle of a digenetic fluke are asexual Select all that apply sporocyst cercaria redia motacorcoria

Which groups of mollusks have a closed circulatory system select all that apply Cephalopods Polyplacophora Bivalves Gastropods

A parasitic worm is extracted from the intestines of a sick dog How can you determine whether this worm is a trematode or a cestode In the first blank give one unique trait that would allow you to identify the organism as a trematode A trait that would allow you to identify the organism as a cestode In the second blank give one unique

Identify the cells found within the tissue shown

Name this tissue 10

A Identify the cells found within the tissue labeled A A

II What values did Sun Yatsen s Three People s Principles encompass 12 Why in his reorganisation of the GMD did Sun put such emphasis on the military

Part A Identify the cells found within this tissue

The intervertebral discs are found between the of the vertebrae bodies spinous processes transverse processes vertebral foramen

When viewing the vertebral column laterally the spinal cord can be seen through the a foramen magnum b vertebral foramen Oc intervertebral foramen d transverse foramen

A B

Identify the cells found within the tissue shown Submit Previous Answers Request Answer A B