Cell: The Unit of Life Questions and Answers

What is the main function of a phospholipid O Immune defense O Construction of membranes O Energy storage Q Cell signaling Biological catalyst O Construction of cell walls

cells will migrate within the True False Question 37 2 points Saved Listen Acoelomate animals have the following select all that applies Select 4 correct answer s do not form a gastrula a true gut cavity mesodermic cells only one body cavity called the gut trinl

Labels 1000 INTRODUCTION LABORATORY SIMULATION m Cell membrane Cell wall Central vacuole Chloroplast Cytoplasm Golgi apparatus Mitochondrion Nucleus Rough endoplasmic reticulum

The pedigree suggests that the mode of inheritance for an allele on chromosome 3 is I 2 3 18 2 6 autosomal recessive Y linked dominant autosomal dominant X linked recessive X linked dominant

98 From the image above select all of the statements that are true Select all that apply O B will contain intracellular fluid O C is called the interstitial space A will contain intracellular fluid D is indicating fluid between cells fluid is able to move between all 3 spaces as needed the 3 spaces in the body that contain fluid are the intracellular interstitial and extracellular careful this may he tricky

In which of the following can you find hydrogen bonds DNA double helix only a NaCl molecule proteins only DNA and proteins

Epidermal ridges are responsible for the shape of your O stretch marks O fingerprints Ohairline wrinkles

Which group of people favors extreme change to restore society to an earlier state O Radicals O Liberals O Conservatives

Creating hypotheses based on observations A hypothesis is a general principle or explanation that is derived from observations Suppose you make the following observations You look at 10 human liver cells and observe that each one has a nucleus You look at 10 onion cells and observe that each one has a nucleus You look at 10 nerve cells from a mouse and observe that each one has a nucleus a b C For each statement below mark True if it would be a valid hypothesis and mark False if it would not be a valid hypothesis 1 The onion cells I looked at have a nucleus Click to select B ing 2 All onion cells have a nucleus Click to select 3 All cells have a nucleus Click to select B Click to select B 4 Some cells have a nucleus 5 Only onion cells have a nucleus Click to select 6 Based on these three observations alone if I look at 10 skin cells from my hand would it be a reasonable hypothesis to conclude each one will have a nucleus Click to select

What statement supports the definition of a command economy The government determines Owhat goods are produced how and for whom The government determines the quality of goods produced by imposing strict standards of production The marketplace determines O what goods are produced and for whom The marketplace determines O the quantity and quality of goods

A group of organisms that belong to the same species and live in the same geographic location is called a n Click to select atom biosphere cell community ecosystem molecule organ organ system organelle population species subatomic particle tissue munity of different species together with its physical habitat constitutes a n Click to select

Click to select atom biosphere cell community ecosystem molecule organ organ system organelle population species subatomic particle tissue is a group of similar cells that act as a functional uni mple of a n Click to select ns that belong to the same species and live in the sam inity of different species together with its physical hab

Hierarchical organization from smallest to largest Complete the sentences with the words provided atom 1 The level of organization that is more complex than an atom but less complex than an organelle is a r Click to select biosphere cell 2 Molecules may be assembled into a microscopic structure called a n Click to select within a cell 3 4 A Click to select which carrie The simplest level of organization that can carry out all of the functions of life is a n Click to select is a group of similar cells that act as a functional unit 5 Your brain is an example of a n Click to select 6 A group of organisms that belong to the same species and live in the same geographic location is cal community ecosystem molecule organ organ system organelle population species subatomic particle tissue MALE FE ion

5 DNA profiling can now be used with confidence in forensics to identify individuals based on their unique genetic makeup This is in part because the has been accepted throughout the scientific communit O O observation hypothesis law theory

Which of the following types of work involves a change in position of the cell or a cell structure O Concentration Mechanical Electrical Bioluminescent

Which of the following is a characteristic of the three domains of life All ribosomes are of the same size Ribosomes from organisms of the three domains contain proteins and rRNA and catalyze protein synthesis DOO Ribosomes from organisms of the three domains can be found on the surface of the rough endoplasmic reticulum Ribosomes from organisms of the three domains have the same number of protein subunits Question 3 0 75 points 4 Listen Which of these organelles produces H202 as a by product peroxisome nucleus mitochondrion

The extracellular matrix outside the plasma membrane of animal composed of lipids collagen and proteoglycans collagen proteoglycans lipids and peptidoglycan peptidoglycan cellulose Question 5 0 5 points Listen The major structural elements of the cytoskeleton are cleavage furrows and G actin the cytoplasm and cytosol microtubules microfilaments and intermediate filaments Oproteoglycans and cellulose microfibrils hat and the cell wall

estion Listen Which part of the neuron contains the nucleus 1 point a the axon Ob the dendrites Oc the cell body Question 20 1 point Listen Figure 4 23 shows a cross section of the trachea to demonstrate how many tissues come together to form an organ Which connective tissue is found in the C shaped rings of the trachea hyaline cartilage spongy bone elastic connective tissue elastic cartilage Question 21 1 point Listen Module 4 7 describes several structures composed of epithelium and connective um pro all cavities studied in

Listen Which type of cell junction is closest to the apical face of the epithelial layer and prevents fluids from passing between the cells tight junctions desmosomes gap junctions Question 4 1 point Listen Which type of cell junction allows fluids to pass from one cell to the next cell tight junctions desmosomes gap junctions Question 5 1 point Listen Epithelial tissues consist of layers of epithelial cells sitting on a layer of smooth muscle blood vessel basement membrane loose connective tissue Question 6 1 point

Shown below are the structures of glucose glycine and myristic acid which are commonly consumed in diet and can be used as energy sources by the human body Which of the following statements is NOT correct regarding their chemical structures CH OH 18 1 HO glucose a sugar modif COO H N C H glycine an amino acid H H myristic acid a fatty acid HF 1 O There is a benzene ring in glucose O Myristic acid is fat soluble while glycine and glucose are water soluble O There is a double bond in at least one of the above structures

Question 3 Points 2 What do the zoning laws deal with Land area within the municipal jurisdiction Operations of small business within the municipal area Management of tourism within municipal area Supervising public schools and public parks within municipal

Excerpt from Bike Helmets Unused Lifesavers Consumer Reports May 1990 348 What is the central idea of this passage Cause of bicycling deaths Children s head injuries O Dangers of head injuries O Why head injuries

Dr Staple s research requires studying how adolescents behave around their parent and how that behavior shapes how they continue with the same or change their parenting styles towards their teenage kids in a continuous loop Because this is their specific focus which of the meta theories may they subscribe to mechanistic contextual

Cell type peptidoglycan layer cytoplasmic membrane Cell type Peptidoglycan layer cytoplasmic membrane inside cell Cell type protein S layer cytoplasmic membrane J Ju PORARS y outside cell inside cell outside cell outside cell inside cell I

How thick is a typical section of tissue that is cut to be placed on a microscope slide 1mm 0 5mm 0 2mm 0 01mm

Identify the following Hydrophobic portion Hydrophilic portion 1 Phosphoryl group Glycerol Fatty acid tails Ester bond Head group ARRI

The 10th Amendment of the Constitution says that states are governments of reserved powers which are enumerated in the Constitution granted to the states by the national government powers not granted to the O national government and not denied to the states

Which structure acts as both a barrier and a facilitator for the uptake of nutrients and other substances in the environment Select one O Cell membrane O Cell wall O Siderophores O Periplasmic space

Match the sponge cell type to the correct function Choanocytes Porocytes Pinacocytes Amoebocytes aka archaeocytes 1 generate water currents and trap food particles doughnut shaped cells that allow water to enter the sponge canals cells that make up the outer layer of the sponge and line some internal passageways 3 2 4 mobile cells that carry food throughout the sponge and can transform into any other sponge cell type specialized stunning cells that defend the sponge against predators 6 sponge neurons allow the sponge 5

2 You have two 5 ml broth cultures that were inoculated at the same time with the same bacterium Both were incubated for 24 hours at room temperature One culture is slightly turbid and at least to the naked eye the second tube of media appears perfectly clear You have only 48 hours to determine if any bacteria at all grew in the second tube Describe two ways that you could determine if bacteria are present using only bacteriological culture tools Note Assume both experiments must be completed in their entirety within 48 hours you do not get 48 hours per experiment

3 1 What is the genetic material in the chromosomes of an animal s cells O DNA ORNA O glucosamine transcriptase

1 1 Peptidoglycan is a compound in the cell walls of many bacteria Which 1 point of the following elements are most abundant in peptidoglycan O iodine and potassium chlorine and iron carbon and hydrogen aluminum and sodium

Prokaryotes and Eukaryotes differ by Select one O Eukaryotes contain a nucleus and membrane bound organelles while prokaryotes a not O Prokaryotes contain a nucleus and membrane bound organelles while eukaryotes d O not Eukaryotes contain specialized cell structures while prokaryotes do not O Prokaryotes contain specialized cell structures while eukaryotes do not

What are two consequences of patronage Fraud and industrialization O Violence and political unrest Popular satisfaction and job security Incompetence and fraud in government

estic Which of the following statements is are true about dehydration synthesis One monomer loses a hydrogen atom and the other loses a hydroxyl group Electrons are shared between atoms of the joined monomers H O is formed as the monomers are joined Covalent bonds are formed between the monomers All of the choices are correct

Unlike animal cells plant cells have animal cells have chloroplasts cell walls a nucleus centrioles chloroplasts cell walls and centrioles cell walls large central vacuoles chloroplasts cell walls centrioles Unlike plant cells

Bush s war on drugs took steps to do all these EXCEPT Osue drug users O legalize drugs O recall users college loans O perform random drug tests

Turn this molecule into its Br nsted Lowry conjugate base HIN H

illy which event would have occurred first or earliest in time O Antonie van Leeuwenhoek visualized microbial cells Robert Hooke invented the compound microscope O Koch s postulates were formulated O Edward Jenner invented a smallpox vaccine Question 2

The first cellular genome ever sequenced was O virus phiX174 O Thiomargarita nambiensis Escherichia coli

Which of the following things happened as a result of Camp David Records O Egypt disagreed to recognize Israel and Israel returned the Sinai Peninsula O Egypt agreed to recognize Israel and Israel returned the Sinai Peninsula O Egypt disagreed to recognize Israel and Israel refused to return Sinai Peninsula O Egypt agreed to recognize Israel and Israel refused to return the Sinai Peninsula

Points 3 Based on research which of the following sociological factors would most likely be associated with a Republican voter He is in a low income bracket He is young He is Protestant He lives in a Northeastern city

Why was the GI Bill of Rights passed in 1944 O To honor veterans O To allow veterans to study for free and seek higher education degrees To ease the transition from war to civilian life O To find a new job more easily

Look at this diagram During the Yalta Conference it was decided that after the war Germany would be occupied by forces from four different nations Which nation belongs in the empty quadrant United States Soviet Union O Spain O Italy O Russia France Post war Germany Great Britain

Beer s law states that as the concentration of a substance in solution becomes greater its absorbance will Decrease Increase Stays the same Cannot be determined Question 2 1 point Listen The OD280 reading of an unknown solution is 1 5 What does this mean The DNA concentration of this solution is 75 g mL This reading is unreliable the solution must be diluted and the OD checked again There is no DNA in this solution

is a fast food restaurant that was built in the 1950s and is still popular today O Burger King O Hardies O McDonalds O Checkers 12

Read this quotation I believe that it must be the policy of the United States to support free peoples who are resisting attempted subjugation by armed minorities or by outside pressures This statement was one salvo in what was to become the Cold War It also became the centerpiece of the Marshall Plan O d tente O Truman Doctrine NATO Complete Later Complete Questions 1 5 9 13 17 21 25 1 14 N5 22 26

Suburbs Automobile Manufacturing jobs Based on your own knowledge which of these choices would best fill in the diagram O Highway construction O Public transportation Cleaner air Downtown areas

Below left is a pedigree of a family with a history of Best disease vitelliform macular dystrophy an autosomal recessive condition As part of a study aiming to identify the gene responsible for this condition members of an affected family were genotyped for alleles of a SNP locus closely linked to the Best disease gene using ASO technology with results shown below right In the diagram Illustrating ASO results 1 and 2 refer to ASO probes specific for two different alleles of the SNP locus with filled circles showing where hybridization signal was observed and open circles showing where signal was not observed Numbers across the top of the ASO results diagram refer to individuals in the pedigree In the pedigree the numbers below each individual symbol indicate individual numbers in each generation not SNP alleles 1 11 III Part 1 1 2 2 0 0 O 25 50 3 ASO 1 ASO 2 O SNP allele 1 O There is not enough information to answer this question O SNP allele 2 1 1 If there is no recombination between the SNP and the Best disease gene which SNP allele is on the same chromosome as the disease allele 1 2 11 1 11 2 11 3 Part 2 What is the probability that Individual III 1 the child in the third generation will have Best disease To answer this question consider the genotype of the child s father and continue assuming no recombination between the SNP and the disease gene

Question 6 Points 1 Which country did Churchill Roosevelt and Stalin want to defeat England O United States O Germany Russia