Biology Questions

QUESTION 9 People who have the O blood type possess 1 an enzyme that adds an N acetylgalactosamine to the end of the oligosaccharide chain on RBC membrane glycolipids 2 an enzyme that adds a galactose to the end of the oligosaccharide chain on RBC membrane glycolipids 3 an enzyme that adds phospholipids to the end of the oligosaccharide chain on RBC membrane glycolipids 4 no enzymes capable of attaching galactose or N acetylgalactosamine to the end of the oligosaccharide chain on RBC membrane glycolipids 01 02 0 3 04 O 1 and 2 QUESTION 10 What kind of membrane protein penetrates into the hydrophobic part of the lipid bilayer O integral protein O lipid anchored protein O peripheral proteins phosphatidylcholine

they are the site at which the indenza virus mirstomos a cen O All of these are correct QUESTION 5 Why did liposomes not work against diseases as hoped when they were first tried O They were degraded in the bloodstream O Immune system phagocytes removed them from the bloodstream before they could exert an effect O They leaked before getting to their target 4 O They were targeted incorrectly O They expanded osmotically and lysed before reaching their target QUESTION 6 How are the new stealth liposomes protected from immune system phagocytes O They are kept cold before use O They are coated with carbohydrates O They are given a synthetic polymer coating that protects them from immune destruction O They are loaded with radioactive isotopes O They are colored red QUESTION 7

QUESTION 39 Signal transition is a function of cell membrane O True O False QUESTION 40 You have fused a mouse cell and a human cell and then treated the cell with specific antibodies that are covalently linked to fluorescent dyes antiboc to mouse proteins green antibodies to human proteins red Immediately after fusion the cell appears to be yellow in color O True O False QUESTION 41 Lipid rafts contain higher concentrations of sphingolipids and cholesterol and certain proteins become concentrated within them O True

QUESTION 45 The largest proteins move the farthest during SDS polyacrylamide gel electrophoresis O True O False QUESTION 46 The neuron cell nucleus located is located in the cell body O True O False QUESTION 47 All membranes plasma nuclear or cytoplasmic from plants animals or microorganisms have the same ultrastructure O True O False

Which rock unit is oldest The Cold Canyon area Revelstoke Fm Kamploop GE Osoyoos Lake Limestone Penticton Fm Okanagan Fm Thompson River Fm Revelstoke Fr C E D Granite Copper Creek Fm Contact metamorphosed zone Copper Creek Fm A Abbotsford Fim

Complete the sentences about acids bases and pH using the words provided 1 A n Click to select 2 A n Click to select 3 A n Click to select 4 As the hydrogen ion concentration of a solution decreases the pH Click to select As the pH of a solution increases the concentration of Click to select ions increases The pH of a solution is defined as the Click to select of the hydrogen ion concentration 7 As the hydrogen ion concentration of a solution increases the pH Click to select 5 acts to increase the hydrogen ion concentration of a solution acts to decrease the hydrogen ion concentration of a solution acts to maintain a relatively stable concentration of hydrogen ions in a solution 6

Which of the following does NOT apply to lipids O A help to maintain body temperature B provide a readily available energy source preferred by cells O C form essential structural components of cells inst shocks

Which of the following statements is false concerning the dideoxynucleotides ddNTPs used in Fred Sanger s dideoxy chain termination method of DNA sequencing O If a ddNTP is added to a growing DNA strand the chain cannot be extended any further The dideoxynucleotides are not able to be detected in gel electrophoresis Dideoxynucleotides ddNTPs are chain terminators Dideoxynucleotides ddNTPs are flourescently dyed

Match the term regarding DNA replication within bacteria with the correct description V DJ DNA pol I topoisomerase helicase primase DNA polymerase DNA pol III 1 2 3 4 5 6 Main enzyme that adds nucleotides in the 5 3 direction Opens the DNA helix by breaking hydrogen bonds between the nitrogenous bases Helps relieve the strain on DNA when unwinding by causing breaks and then resealing the DNA Removes RNA primer and replaces it with newly synthesized DNA Synthesizes RNA primers needed to start replication adds nucleotides one by one to the growing DNA chain

How many significant figures are in the measurement 56 0 mL O a 1 O b 2 O c 3 O d 4

Question 1 7 points When writing answers to a quiz a formal lab report or even a 5 paragraph essay it is important to use the traditional symbols and abbreviations On the HTML editor the box you type into there is a button with a plus sign Expand the downward facing chevron to the right of the plus sign to see the menu containing symbols emojis and other items Expand the downward facing chevron to the right of the U to see the menu containing the superscript or subscript font options For the items below provide the symbol 1 Degree 2 Micro 3 Alpha 4 Beta 5 Percent Retype these items using the superscript or subscript 6 H O 7 103 When we do labs or write papers in this class please be sure to use these types of symbols and font options

Question 2 How did the allelic frequencies change over the 10 generations modeled in response to natural selection Do you think the white allele could be eliminated from the population if the model had continued for 10 more generations Reference Graph 2 in your explanation 0 Word s IUE ET T B Question 3 A mutation occurs in a population of rabbits affecting ear length After multiple generations 30 of the population exhibit the new recessive phenotype for short ears Use the Hardy Weinberg equation to determine the genotypic frequencies of the rabbit population Show all work in your answer B J U E T T 0 Word s

WA 6 Replication Crisis Write an essay on some aspect of the replication crisis Or write about a claim once widely accepted that is now disputed discredited or doubtful Cite your source

Exercise 2 Questions Question 1 Describe the enzyme required to complete the recombinant DNA plasmid initiated by this exercise and the resulting size of molecule that would be produced Reference Data Table 1 in your answer BI U T T 0 Word s

the Great Depression by providing relief to people in need by creating programs to help the nation recover from economic ruin and provide a framework to reform the system to try to prevent another economic depression Determine which of these goals each program had in mind Relief Recovery Reform

Quorum sensing involves the production and monitoring of signaling molecules AND is used by eukaryotes to sense the presence of bacteriawithin their population is used by bacteria to limit the density of cells in a population AND is used by eukaryotes to sense the presence of pathogens within their cells O is used by bacteria to limit the density of cells in a population AND is used by eukaryotes to sense the presence of bacteriawithin their environment involves the production and monitoring of signaling molecules AND is used by bacteria to sense the density of cells within their population is used by bacteria to sense the density of cellswithin their population AND is used by eukaryotes to sense the presence of bacteria in their environment

When E coli is placed in a medium containing both glucose and lactose why does cell growth stop temporarily when the glucose is used up Once glucose is depleted the cell must use the lactose before it can do this it must express the lac operon and synthesize the enzymes needed to use lactose which takes time Glucose is the preferred medium of the cells when it is available they grow extremely fast and this depletes all the energy in the cell which must be replaced before it can use lactose The presence of glucose denatures the lactose in the medium once the glucose is depleted the lactose has to regain its original shape before the cells can use it Once glucose is depleted the cell must use the lactose before it can do this it must express the lac operon it can only do this if the culture medium is placed in the dark at 22 C Once lactose is depleted the cell must use the glucose before it can do this it must express the lac operon and synthesize the enzymes needed to use lactose which takes time

You have found a bacterium it is uncharacteristically resistant to the antibiotic methicillin It has a genetic signature similar to the genes that Staphylococcus aureus strains have when they are resistant to methicillin MRSA How could the use of a cell structure be a mechanism for this microbe population growing in a managed environment to acquire antibiotic resistance which is more common to microbes associated with human skin

1 Describe the biological roles of the viral capsids in the virus life cycle 2 Estimate the T number of the sculpture shown in Figure below Estimate how many sheets of glass are needed to assemble the sculpture An icosahedral sculpture An icosahedral sculpture is often used by architects A dome structure built in roof of a building at Yonsei University in Korea A triangular facet is evident by linking three fivefold axes of symmetry the white dot 3 Describe two methods that are utilized to obtain a high resolution image of a virus particle structure And compare

4 Size Complete the table below Unique structures Shape Locomotion Amoebas Foraminiferans and Radiolarians Flagellates C

5 Saprolegnia a parasitic water mold parasitizes 9 and has a cell wall composed of unlike the true fungi which have cell walls composed of

Which statement s or characteristic s is are not true for the plantlike protists algae Circle all correct answers a They are a diverse group that includes diatoms to multicellular kelp b They are photoautotrophs c They have chlorophyll a and membrane bound plastids d Examples include Spirogyra Volvox Polysiphonia and Euglena e They do not undergo conjugation

Traditionally Protista has been called a kingdom yet it is now recognized as a polyphyletic group What is the likely future of the kingdom Protista

How have the protists traditionally been classified

6 Where on the cell are the conjugating Paramecium caudatum joined

2 Match the parasitic flagellate with the vector Triatomine or kissing bug Sand flies Tsetse fly A Leishmania sp B Trypanosoma cruzi C Trypanosoma brucei

5 Briefly describe the purpose of conjugation in paramecia

3 What is unique about Giardia and Trichomonas How are they changing taxonomy

4 Describe the action of the contractile vacuole of the Paramecium in a hypotonic solution

3 What is a mixotroph Give an example of a plantlike protist that is considered a mixotroph

One of the most common echinoderms during the Paleozoic were Crinoids which lived directly on the seafloor i e epifaunal Usually fossils only preserve parts of Crinoid bodies From the different body parts of Pentrimites the calyx or head the stalk and the base reconstruct in a drawing the complete Crinoid Also draw a top view of the calyx identifying the mark with five fold symmetry Crinoids still exist today but are not very abundant use the figure in the book provided as a guide for your reconstruction but don t just copy use the fossil specimen themselves in the reconstruction

AOTD What is the primary material that makes up the inner cylinder of Phoronid tubes Thin Films Formed by Fibers Small Shells and Sand Hard Substrata Soft Sediment

Which answer best explains why the class Sipuncula has been separated from many other classes in the phylum Annelida Emanda On part WEY Lophotrochozoa in part Poc Annelida Pleistoannelida Le of o Sedentaria in part Citellata Stograse St Eche Na Ace Link Acarta dan Hyd Det hedductiv 2ortun Loss of de przypade 27 se Hrudnida Bestur eyes Branna propue DOC Sounce Chastopne Beberat Lines of Ania kol perce Posterior body sucker wa wat segmentatus Permal vegy Sipuncula do not have a feeding mechanism Sipuncula do not exhibit metamerism Sipuncula do not survive in marine environments

Fill in the blank Hookworms are so named because the suggesting a hook dorsal ventral posterior anterior end curves dorsally

4 12pts A research study published in The Journal of Biological Chemistry 2020 and mentioned in Science Daily 2020 discusses a drug that has been used in the treatment of SARS and MERS type coronaviruses Recent clinical trials were conducted by the NIH at the University of Nebraska Medical Center UNMC which is about 80 miles northeast of Doane University to test for its effectiveness towards combating the novel coronavirus COVID 19 Refer to the articles posted in module 4 and other resources you have at your disposal to answer the following questions Answer each part below accordingly a 1pt What is the name of the drug discussed b i 1pt Look up ie google and draw the structure of this drug ii 1pt How many carbon atoms in this structure are considered chiral c i 1pt What is the configuration of the chiral carbon which is not part of a ring Circle the correct label R or S below ii Using the structure drawn above label the priorities according to Cahn Ingold Prelog rules 1pt R or S d i 1pt How many additional stereoisomers does this compound have Note the phosphorous in this structure is also a stereocenter ii 2pts Propose a reason why the stereochemistry of this drug is important e 2pt What biochemical enzyme has this drug been shown to inhibit and why is this important f 2pt Draw the structure and provide a name of the RNA nucleotide that this drug most closely resembles

People who identify as gay lesbian or bisexual make up about O 1 3 O 2 4 O 3 5 04 6 of the U S population

The four forces in psychology s history include O functionalism structuralism psychoanalysis and multiculturalism psychoanalysis behaviorism evolution and multiculturalism psychoanalysis behaviorism humanism and multiculturalism behaviorism cognition humanism and subculturalism

is your culture s social psychological and behavioral expectations related to the sex you were assigned at birth Sex Gender Sexual orientation Culture

Prisha has just moved with her father from India to Paris She is having difficulty fitting in at school and finds herself not wanting to speak French or do traditional French things with classmates She has made friends with an elderly Indian woman who lives next door to her and spends all of her time with her talking in Hindi about her previous life in India What type of acculturation strategy is Prisha using O assimilation separation Omarginalization O integration

You want to better understand a coworker s culture In order to avoid stereotyping your coworker it would be best to make sure that you O consider only what is typical for your coworker s culture consider that everyone including your coworker is unique and that culture is irrelevant consider what is typical for your coworker s culture but also that your coworker might not be typical for that culture consider what is atypical for your coworker s culture and that your coworker might be typical for that culture

O learn about a different culture other than your own live and interact effectively in a multicultural society O score high on a test regarding different cultures in the world recognize different racial and ethnic groups

Macmillan Learning You live in a culture that is open to various viewpoints and requires few laws or social guidelines to dictate and control behaviors This type of culture is high in avoidance of uncertainty long term orientation acceptance of uncertainty short term orientation

Which statement is correct regarding the percentages of various races and ethnicities of the U S population Three percent are Asian Thirteen percent are Black or African American Twenty five percent are Hispanic or Latinx O Forty five percent are White

Sexual orientation rates Oare the same O differ widely Oare unknown differ slightly across various parts of the country

The model believes that cultural differences are not disadvantages but are unique qualities that carry their own strengths that should be acknowledged and celebrated deficit culturally disadvantaged cultural pluralism positive psychology

is when a person who is transgender lives a life as the gender that matches their identity rather than their biologically assigned gender based on their sex Adapting Assimilating O Transitioning Transgendering

ick to see additional instructions magine a population evolving by genetic drift in which the frequency of allele K is 0 2 What is the probability that at some point in the future allele K will drift to a frequency of 17

Cow of the Future Case Study Part 2 continued G1 a Fxn promoter b how many for pmoCAB transcription G2 a Fxn of initiation and termination sequences b how many mRNA molecules produced from pmoCAB G3 a Fxn RBS b How many RBS when pmo is transcribed Figure 3 Depiction of the pmo operon G4 a Fxn start stop codons b How many start stop codons on RNA transcribed from pmoCAB a b C pmoC def pmoA ghi pmoB k 1 G5 Which letter represents were the RNAP would bind to transcribe pmoCAB as a unit G6 Which area s marks where you would find initiation site s m G7 Which area s marks where you would find termination site s G8 a Which area s marks where you would find translational start site s b Which area s marks where you would find translational stop site s G9 Which letter indicates the 5 end

ere 3 synthesis estrial ke Plant respiration Plant biomass 550 Soil carbon 60 Fossil fuels cement and land use change Microbial respiration and decomposition Fossil pool 10 000 Atmospheric Carbon Net Annual Increase 90 2 Phytoplankton photosynthesis Air sea gas exchange of carbon year Numbers in parentheses refer to stored carbon pools Red indicates carbon from human Q Net ocean uptake 2 6000 90 Reactive sediments Surface ocean 1000 Respiration and decomposition Deep ocean 37 000 Observe the labels in the diagram What is similar and different between the terrestrial and aquatic ecosystems in this Figurer Observe the number values in the diagram What is similar and different between the terrestrial and aquatic ecosystems in this Figure Why do these differences exist Be specific in your explanation Using the quantitative data on the diagram explain how the ecosystem is attempting to maintain homeostasis Include the numbers in your explanation Terrestrial Aquatic Using the quantitative data on the diagram explain how the net gain of atmospheric carbon from human emissions impacts these ecosystems Terrestrial Aquatic Using the quantitative data on the diagram explain how you know whether the attempt to maintain homeostasis has been successful or not

In the figure below which of the following listed body parts is responsible for the feeding mechanisms in lophophorates Lateral arm of lophophore Spiral portion of lophophore Dorsal brachial valve Mouth dorsal valve ciliated food groove water current direction of food movement Ciliated food groove Direction of food movemer Water current