Biology Questions

Dashboard Excelsior College Match the letter to the correct term s org Multicellular diploid A B C A E D Fertilization Choose Choose Choose Sign In B C Home Los Angele Multicellular haploid

Match the following statements to the correct term 2 points total characters that are found within two descendants but not necessarily within their common ancestor two structures that look alike and arise through divergent evolution a term that can describe two structures that share common features but do not derive from a common ancestor a term meaning more than one common ancestor Choose Choose Choose Choose

If a person actively is passing proglottids these structures can be used to identify the organism Give the name of a tapeworm a morphological character of the proglottid that led to your identification and the route of infection

Light detection in a Euglena is by an eyespot and a photoreceptor O True False

Which genera have members that undergo conjugation in order to acquire genetic variability O Trichomonas O Paramecium O Giardia O Entamoeba O Trypanosoma

How does a tapeworm acquire nutrients through the tegument

Question 8 What is the common name for these organisms

Question 79 1 point Olestra is a type of synthetic fat that passes through the digestive tract withou being absorbed Which one of the following health issues could result from consuming large amounts of Olestra Relief from abdominal cramping Increased episodes of constipation Build up of water soluble vitamins in the body Deficiency in fat soluble vitamins Risk of liver failure due to vitamin A poisoning

What is the common name for what is shown in this slide

Give the scientific name of a dioecious fluke and tell me the evidence you used to determine that it is dioecious

Choose all that apply De Organization for Matter and Energy Flow in Organisms Question 6 Which statement correctly describes the Calvin cycle 81 The cycle can function in the dark It does not need sunlight to function 0 The cycle turns multiple times to allow one sugar molecule to exit it The cycle breaks down a sugar molecule to produce carbon dioxide The cycle captures energy from the sun and converts it to ATP

Within lipid bilayers saturated hydrocarbon tails pack less tightly than unsaturated tails Increasing the percentage of unsaturated fatty acids within a cell membrane will increase the membrane One essential component of animal cell membranes is cholesterol means that it reduces the effect of temperat the fluidity of which acts as a fluidity buffer This

Question 77 1 point Which one of the following is NOT broken down by the amylase enzyme None of these options is correct Amylose Cellulose Amylopectin Starch Sucrose

Phylum Zygomycota the molds Phylum Glomeromycota the mycorrhizal fungus Phylum the club fungus Phylum Ascomycota the sac fungus

08 Choose all that apply De 18 Organization for Matter and Energy Flow in Organisms Qu Which statements about starch are correct De 0 It is made of glucose monomers 201 It is broken down to form amino acids 200 Plants use it to store energy in the form of glucose It is a carbohydrate

what is the common name for this

GTP binding proteins are regulated by GTP GDP binding How is a GTP binding protein switched from its inactive form to it active form The protein releases GTP and binds to a molecule of GDP The protein phosphorylates its bound GDP to produce GTP The protein hydrolyzes GTP so that it is now bound to GDP The protein releases GDP and binds to a molecule of GTP

Select one 81 61 Organization for Matter and Energy Flow in Organisms Question 7 Which statement correctly describes cellular respiration 81 O Glycolysis and the Krebs cycle do not produce any ATP energy O Only humans perform cellular respiration The electron transport chain produces the most amount of ATP energy compared to the other steps of cellular respiration The body cannot produce any ATP energy from glucose without oxygen

High fructose corn syrup HFCS normally has approximately what composition more than mannose dextrose glucose fructose Ofructose mannose dextrose mannose None of these options is correct fructose glucose Question 63 1 point The French Paradox refers to None of these options is correct the low liver cancer rate despite high wine consumption in France the unusually high incidence of heart disease despite low average cholesterol levels the preference to carry baguettes under the arm O an unusually low incidence of heart disease despite high fat consumption quic movies

Select one Dg Organization for Matter and Energy Flow in Organisms Question 9 When matter is conserved in organisms what exactly are scientists referring to 61 The combustion and loss of atoms during biochemical reactions O The gain of atoms during biochemical reactions O The rearrangement of atoms during biochemical reactions The loss of atoms during biochemical reactions

speech analysis does the following passage determine A speaker gives a one sided speech on wearing uniforms in schools A Speaker s credentials B Speaker s bias C Setting of speech Sponkor

Which statement about protein phosphorylation is TRUE Phosphorylation of enzymes will always activate them Protein phosphorylation covalently attaches a negatively charged group to a protein Regulation by phosphorylation is irreversible Protein phosphatases catalyze protein phosphorylation and protein kinases remove the modification All of these statements are true

Question 2 Classify this bacteria s shape

In general the fluke life cycle is comprised of seven life stages In the space below list them in the appropriate developmental order and identify whether you would consider each stage to be free living or parasitic For example Caterpillar Free living would be the concise and appropriate format here

Membrane proteins can be classified based upon how they associate with the membrane What type of membrane protein is indicated by the black arrow 3 O Peripheral membrane protein Lipid anchored protein O Transmembrane protein extracellular space cytosol

Which sentence contains transitional words or phrases A I saw a movie got a manicure and went to the mall B I saw a cartoon at the movie theatre got a manicure at the salon and went shopping at the mall C First I went to the movies I got a manicure and lastly I went shopping at the mall D I got my nails done saw a movie and went 6

Which sentence uses the 12 underlined vocabulary word incorrectly A Only the elite of the class boarded the vessel for the dangerous trip B If you don t want to be misunderstood be very explicit on what you are asking for C Do we really want more speeches more rallies more proliferating D It takes a fair amount of maintenance to keep a house in working order maintenance n upkeep preservation care Now one side in this campaign has been telling us that the issues of this election are the maintenance of peace and prosperity elite n best chosen select few This is the issue of this election Whether we believe in our capacity for self government or whether we abandon the American Revolution and confess that a little intellectual elite in a far distant capitol can plan

What mechanism ensures that motor proteins like myosin or kinesin move undirectionally along the cytoskeleton Motor proteins are attracted to the charged ends of cytoskeleton filaments Motor proteins are only active when bound to GTP O Some of the motor protein s conformational changes are tightly linked to ATP hydrolysis Motor proteins bind to the cytoskeleton and undergo random conformational changes

Choose the word that correctly completes this antonym analogy elite ordinary organized A ordered B compatible C chaotic D systematic

When protein is converted in the body to amino acids what is the role of water Traces of water are needed to stimulate the enzymes O Water is released by the process Water is needed for the process to break the amide peptide bond between amino acids Water is not involved only enzymes Only beef proteins need water to convert them to amino acids None of these statements is correct Question 61 1 point Dolomite is a substance sold in health food stores Select the correct statement Due to the toxic nature of dolomite it has been banned in the U S and Canada Dolomite can contain toxic heavy metals such as mercury Dolomite is a mixture of calcium and magnesium carbonate and is always purified to eliminate other elements This product is mainly magnesium sulfate and is soluble in water This substance is not a good source of calcium as it does not dissolve well in water None of these statements is correct

following confusing pronoun antecedent They went to the football game with Emma A Tom and Steven went to the football game with Emma B The people went to the football game with Emma C Everyone went to the football game with Emma D The human beings went to the football game with Emma

Researchers performed an experiment to investigate DNA replication First they synthesized radioactively labeled nucleotides which are nucleotides that contain radioactive elements that allow them to be visualized Then they inserted the radioactively labeled nucleotides into a cell When the cell divided it incorporated the radioactively labeled nucleotides into its DNA during DNA replication The following image shows the cell s DNA before and after replication The original DNA strands are shown in blue and the DNA strands with the radioactively labeled nucleotides are shown in orange original DNA blue radioactively labeled DNA orange original DNA blue

Tag edull atch each excerpt from Song of Myself by Walt Whitman to the poetic device used I ascend from the moon I ascend from the night O suns O grass of graves O perpetual transfers and promotio No doubt I have died myself ten thousand times before alliteration Hous es and rooms are full of per fumes assonance rhyme

If energy is required to move molecules across a microbial membrane then the transport method must be O Active transport O Facilitated diffusion O Osmosis O Passive diffusion O Endocytosis

A B C Which of the pictures shows a cell that carries oxygen O a O c O d O b D

De Cycles of Matter and Energy Transfer in Ecosystems Question 10 Which example describes how carbon moves from the atmosphere to the hydrosphere Select one 1 O De O O Decomposers under the ocean consume dead organisms and release carbon dioxide Some fish carry out cellular respiration to break down glucose molecules Some of the carbon dioxide in the air gets dissolved in the oceans Some underwater plants carry out photosynthesis to produce glucose

Of that colossal Wreck boundless and bare The lone and level sands stretch far away In line 8 the speaker says The hand that mocked them and the heart that fed How do you think this line adds value to the poem The line explains how the traveler mocked at looking at the shattered image of th subject This line explains the sculptor s perfect recreation which looks like it is mocking at the subject O This line shows how the speaker mocks at the derogatory comment of the traveler about the subject

Which of the following statements are TRUE about MALT I A group of lymphoid tissues is called the mucosa associated lymphoid tissue II MALT is found in the tonsils appendix intestinal villi and Peyer s patches III MALT is characterized by a large number of antibody producing plasma cells macrophages O Statements I and II Statements I II and III Statements II and III

A bacterium responds to the presence of a human specific protein by producing a toxin This is an example of O Corepression O Anabolic activation Ligand based induction O Catabolic repression

Which of the following can a prokaryote not do O Passive diffusion O Endocytosis O Facilitated diffusion O Active transport

on 35 O Acidification O Halotolerance O Adherence You have a urinary tract infection and after urinating vigorously have your urethra swabbed The swab comes back positive for a specific bacterial pathogen Of the following which is the single most important virulence factor for that pathogen to stay in your urethra even as you urinate Enzyme production BR tion 34 adly pathogen to have no antigens on the une response

Use the phylogenetic tree of influenza viruses to answer the question tree is from J Virol 2000 74 18 8502 8512 H2 How many clades are represented dkAus 80 dkAlb 76 ma TN 85 tyMN 81 dkBav 77 swArn 79 swNet 80 swGer 81 SWIA 30 swBel 83 swNet 85 swIta 87 swGer 91 SWHO1 92 swIta 76 swHok 81 tymo 81 tyNC 88 PR 34 WSN 33 FM 47 Avian Avian like swine Classical swine USSR 77 Taiwan 86 Human Finland 91

Plasmids must have an ori This is an abbreviation for the O Operculum O Operon O Origin of replication Original locus

Question 20 You add DNA for making the color pink to a culture of bacteria pink They must have taken up the DNA via O Conjugation O Transduction O Transposon Transformation

How Science Works Question b When performing a science experiment or trying to solve an engineering problem an investigation may take place Select one 81 How would an investigation in science compare to an investigation in engineering De O O Science uses simulations to develop explanations of natural events while engineering makes models to show the same events Science uses people to carry out investigations whereas engineering uses technology only Science starts by stating a problem that needs to be solved while engineering starts by asking a question about the natural world Both involve identifying what variables will be tested and what data will be collected

Imagine a newspaper running the following headline In Toronto the divorce rate has decreased as the use of margarine has decreased What can be concluded based on this statement Removing trans fats from modern margarines has reduced the divorce rate Eating butter leads to a happier marriage There is a correlation between divorce rate and margarine consumption however dubious it might be in real life O Consumption of margarine causes people to get divorced How much margarine one eats depends on marital status None of these options is correct Question 13 1 point Which one of the following is correct Cholesterol in the diet boosts trans fats in the blood Aspirin can be used to treat hemophilia Lignans have anti cancer effects Grape seed extract increases the number of senescent cells in the body

Cell membranes consist of both a lipid bilayer and protein components Which of these is not a function of membranes They are involved in energy production They can self heal small wounds like a puncture They are a permeable barrier They are involved in cell signaling All of these are functions of cell membranes

Select one a F Cycles of Matter and Energy Transfer in Ecosystems Question 4 How do primary consumers get energy De O Primary consumers eat secondary consumers O Primary consumers eat producers O Primary consumers produce their own energy from the sun O Primary consumers eat other primary consumers

PURPOSE The purpose is to study the size and arrangement of bacterial Cell EXPECTED RESULTS 1 Sketch a negatively stained rod 2 Which organism used in this exercise is a red RESULTS Sketch a few bacteria viewed with the oil immersion objective lens Specimen Total magnification Morphology and arrangement Bacillus subtilis 1000 x Staphylococcus epidermidis 1600x CONCLUSIONS 1 Which cell is a rod stained with methylene blue simple direct stain Milla pai Unknown Culture 1000 x Tooth and gum scraping did you observe in the tooth and gum scraping 1000X ARO How does its appearance differ from that of the rod yo

Convert the complex number to polar form in radians 2 2i A 2 cos isin B 2 cos isin C 2 2 cos isin D 2 2 cos isin Enter