Biology Questions

How does prophase I differ from prophase II During prophase I there is one diploid cell during prophase II there are two haploid cells During prophase I chromosomes line up single file during prophase II the chromosomes line up double file During prophase I the chromosomes coil up the chromosomes are not coiled up during prophase II In prophase I the sister chromatids are attached in prophase II the sister chromatids are separated

orbs a photon TRUE regarding the behavior of a chlorophyll molecule as it An electron goes from the excited state to the ground state Light is released The energy of a photon raises an electron to the excited state ATP is broken down Question 18 1 point Listen Plant cells do not need chloroplasts because their mitochondria meet their energy needs have chloroplasts and mitochondria use carbon dioxide but do not use oxygen Iria because their chloroplasts meet their energy needs

A cell that completed the cell cycle without undergoing cytokinesis would have less genetic material than it started with not have completed anaphase have its chromosomes lined up in the middle of the cell have two nuclei

The energy with wavelengths that appear photosynthesis O red green blue orange is LEAST useful to

During metaphase 00 the nuclear envelope breaks up DNA decondenses chromosomes line up at the equatorial plat centromeres divide

Which component of the following reaction is the substrate lactose lactase water lactase glucose galactose lactose lactase glucose galactose

separate phase II Four haploid daughter cells are produced 28 Please list and explain 3 ways that meiosis contributes to genetic variation Crossing Over Exchange of genetic material between homologous chromosomes 2 Independent Assortment Random alignment of homologous poi combinations

What kind of stream is this 5 A Excess Energy B Deficient Energy Balanced Energy D Rejuvenated

What kind of stream is this 4 Excess Energy B Deficient Energy C Balanced Energy D Rejuvenated

What kind of stream is this 2 A Excess Energy B Deficient Energy Balanced Energy DRejuvenated

25 6 You return home to find that your baby brother has scattered his toy trains and trucks all over the floor of your room As you begin to pick up the toys and put them away you realize that even though he is just a baby he has clearly mastered Multiple Choice pints O the first law of thermodynamics O the second law of thermodynamics potential energy O free energy

9 The Law of Thermodynamics that states that increases in entropy are favored is 25 oints Multiple Choice The Fourth Law of Thermodynamics The Second Law of Thermodynamics O The Third Law of Thermodynamics O The First Law of Thermodynamics

11 25 oints AMP activated protein kinase AMPK is an enzyme that is activated by high levels of AMP in cells If levels of AMP are high in cells that means that levels of ATP are low Once active AMPK activates catabolic pathways and inhibits anabolic pathways in the cell Why do you think that is the case Choose the answer that best explains the role of AMPK Multiple Choice By activating catabolic pathways AMPK provides a mechanism to activate exergonic pathways which is important if AMP levels are high in the cell O High levels of AMP Indicate that there is a high amount of energy stored in the cell thus activating catabolic pathways and inhibiting anabolic pathways are mechanisms to use stored energy By inhibiting anabolic pathways AMPK provides a mechanism to generate heat for the cell which is important if AMP levels are high in the cell Activating catabolic pathways and inhibiting anabolic pathways will ultimately lead to higher consumption of ATP which is important if AMP levels are high in the cell

13 Tacrolimus FK 506 is a drug that inhibits an enzyme called calcineurin Calcineurin is a protein phosphatase This is an enzyme that dephosphorylates removes phosphate groups from proteins When added to cells tacrolimus can inhibit the dephosphorylation of a protein called NFAT but it cannot prevent the dephosphorylation of a protein called CDK1 What is the most likely explanation for this finding Multiple Choice Tacrolimus is a competitive inhibitor of calcineurin for NFAT and CDK11 O Calcineurin requires an additional cofactor to dephosphorylate NFAT O Tacrolimus changes the optimum pH for calcineurin NFAT is a substrate of calcineurin but CDK1 is not

In a chemical reaction 1 3 bisphosphoglycerate ADP yields 3 phosphoglycerate plus ATP What is the AG for this reaction Multiple Choice O Equal to zero Cannot be determined O Greater than zero Less than zero

4 A calorie is the commonly used unit of chemical energy It is also the unit of 0 25 points Multiple Choice O sound light radioactivity heat magnetism

uger produ Video and audio works written criticism taught classes curated exhibitions designed products such as T shirts and mugs and developed public projects such as billboards bus wraps and architectural interventions Kruger addresses media and politics in their native tongue sensational authoritative and direct Personal pronouns like you and I are staples of Kruger s practice bringing the viewer into each piece Direct address has motored my work from the very beginning Kruger said I like it because it cuts through the grease Kruger s work prompts us to interrogate our own positions in the artist s words to question and change the systems that contain us She demands that we consider how our identities are formed within culture through representation in language and image We don t need another hero Artist Photographer Title Date Medium Size Barbara Kruger Untitled We Don t Need Another Hero 1987 Screenprint on vinyl 108 7 8 x 209 3 16 x 2 1 2in 276 5 x 531 3 x 6 4 cm Word Length 275 300 Total Overview For this response your formal analysis is one long paragraph in length Use the Guide to Formal Analysis and the Thick Description sample in the Week 3 Module for additional support Rather than focusing on just one element in detail you need to address several elements briefly Like any formal analysis the purpose is make argument about the photograph Specifications for Constructing the Paragraph Your first sentence known as a topic sentence should broadly identify what s on the table so to speal in terms of how you will consider the image Seeing as there is no single way to interpret any image yo will want to signal to your reader in the first 1 2 sentences the general nature approach of your analysis This will include a one to two sentence thesis statement In the next few sentences provide an initial description that gives the basic details and context of the image mention the artwork s title its author date and location subject

What is the name of the process when organisms produce ATP in anaerobic environments How does this process work Please provide 2 examples of organisms that complete this process and list the warto

en Please list and explain 3 ways that meiosis contributo Paragraph

Reactions to this current discussion on LOANS affecting parents retirement trajectory Would you do this for your child Whatever you answer give an explanation https www youtube com watch v VKrJXEOKY O

RNA intereference is a mechanism for silencing gene expression by acting on OA DNA replication O B RNA transcription C mRNA stability D mRNA translation E C and D Fill in the blank

In the figure below what method is used in the experiment A Myo1565lacz B XbaI 1565 A lacZ TATA C MEF 2 E1 D O An in situ hybridization microarray O Transgenic mouse O siRNA inhibition Myo1565lacZ A

cellular Matrix protein ranscription factor intracellular domain ptor tyrosine Kinase In the signaling diagram on the below the ligand binds to a blank Ligand binding domain Extracellular Fill in the Ligand paracrine factor Cytoplasm Inactive P P responding protein ATP ADP P Active responding protein

Application of FGF8 coated beads induce limb mesenchymal cell proliferation In contrast FGF8 coated beads implanted on the epidermis of the back do not promote proliferation This experiment provides an excellent example of which of the following O Hedgehog signaling O paracrine signaling juxtacrine signaling O Competence

Remember The dangling Modifier does not have a word words it can describe therefore you must change it to a dependent clause or supply it with some thing it can describe Example Walking slowly the fence startled me A fence can not walk Correction As I was walking slowly the fence startled me or Walking slowly I was startled by the fence The Old Man At the Bridge 1 Jempted to rest the bridge was a refuge 2 Staggering in his gait the overcast sky was overbearing 3 On his route to safety the road seemed hopeless 4 Speaking gently help was an option for him 5 Traveling Lightly dust settled over his clothing about his animals the time quickly passed Worrying abou Cautiously prodding him bombers were steadily advancing Giving in to sadness and fatigue Luck was t

What kind of stream is this 1 Excess Energy B Deficient Energy Balanced Energy

The study of extrinsic motivation revolves around three central concepts Which of the following is NOT one of those concepts O need O punishment Oreward O incentive

A n is an environmental object that occurs before the start of a sequence of behavior and attracts or repels the individual to engage or not in the behavior O punisher Oreward need O incentive

CA A B E J K Proteobacteria Mitochondria Cyanobacteria Chloroplasts Archaea Green algae Plants Brown algae Other protists Fungi Choanoflagellates Sponges Coelenterates jellyfishes Echinoderms sea urchins F H M Bony fishes Birds Crocodiles Hippopotamus N Whales Rodents Primates Molluscs Arthropods

Succinate dehydrogenase SDH assay will be used to identify the presence of mitochondria in the acquired fractions SDH enzyme is a Embedded in the inner mitochondrial membrane IMM b All of these c Specific to the mitochondria d Involved in the electron transport chain and the Krebs cycle

In differential centrifugation a None of the these b The more dense particles sediment form a pellet at lower speeds leaving the less dense particles in the supernatant The less dense particles will settle pellet at higher speeds c The more dense particles sediment form a supernatant at lower speeds leaving the less dense particles in the pellet The less dense particles will settle pellet at higher speeds d The less dense particles sediment form a pellet at lower speeds leaving the more dense particles in the supernatant The more dense particles will settle pellet at higher speeds

DCIP would act as an indicator of SDH activity by a Blocking the electron transport chain b Changing its color from blue to purple c Transporting electrons from Succinate to fumarate d Reducing from its oxidized blue form to its reduced colorless for

We homogenize tissue to lyse the cells True False

We homogenize tissue to lyse the cells True False

Which step of the cell fractionation procedure separates broken cells into fractions a Centrifugation Ob Lysing c Purification d Collection Question 7 1 point Listen Azide acts as an inhibitor to the electron transport chain When azide is removed the SDH activity would be increased True

SDH catalyzes the oxidation of succinate to fumarate If no succinate is present then FAD cannot be reduced and fumarate is not produced in the Krebs cycle If we remove succinate the SDH activity would be decreased True False Question 2 1 point Listen The nucleus only exists in eukaryotic cells True

With the presence of Malonate in SDH Assay as a competitive inhibitor the SDH activity would be increased True False

Differential centrifugation helps to separate organelles based on a Charge b shape c Size d Density

Which step of the cell fractionation procedure separates broken cells into fractions a Centrifugation b Lysing c Purification d Collection

iscussion Post A oard Posts 25 total e of your participation you will write 200 word minimum the readings as well as responding to at least one other post In I want to see concrete examples where you critically reflect on the is can include citing specific photographs and photographers Connections between different readings ideas themes and or the n argument Please refer to my separate guide on discussion posts ails Posts are due by Sunday 6pm almost every week There will not rtunity to post after the deadline so make sure you enter the due Thrift is the watchword of Jewtown as of its people the world over It is at once its strength and its fatal weakness its cardinal virtue and its foul dis grace Become an over mastering passion with these people who come here in droves from Eastern Europe to escape persecution from which freedom could be bought only with gold it has enslaved them in bondage worse than that from which they fled Money is their God Despite that the book is a landmark in American social reform 2 Always a muck raking reformer who recognized the value of photographs as social documents Riis continued to lecture as well as write He eventually published more than a dozen books including his autobiography The Making of an American 1901 and he remained an indefatigable magic lantern lecturer Although not free from prej udice and stereotypes his blend of amusement and instruction impelled civic minded people to act After Theodore Roosevelt became governor of New York in 1899 he worked with Riis to institute reforms Through his lectures and publica tions Riis demonstrated that photographs in combination with words could di rect social activity As part of this American wave of social reform Lewis Wickes Hine 1874 1940 a sociologist from Columbia University who became interested in artistic photog raphy began to photograph at Ellis Island in 1904 where 71 percent of all immi grants to America landed between 1892 and 1924 Hine taught camera courses and took his students such as Paul Strand to Stieglitz s 291 gallery As a teacher at the Ethical Culture School in New York a vital setting for the progressive move ment Hine employed photography to combat the rampant prejudice against the newly arrived peoples from eastern and southern Europe Using a 5 x 7 inch cam notential of these newly arrived individuals Hine s

Please define metabolism enzymes and activation energy What effect do enzymes have on activation energy

What is the name of the process when organisms produce ATP in anaerobic environments How does this process work Please provide 2 examples of organisms that complete this process and list the waste products for each of these examples

Match the types of structural mutations that alter chromosomes Drag the elements placed at the bottom and drop them again their appropriate boxes on top of the image ID X Inversion Deletion Fission

Discuss from an osteological bone perspective why the mammalian jaw is stronger than in early synapsids Reference the figure below to make your points Lower jaw of Shuotherium a shrew sized mammal with backward lower mo lars from the Middle to Late Jurassic of Sichuan People s Republic of China Length of jaw 0 5 inch 12 mm Drawing by Peter Trusler

Mammals only have two sets of teeth O True O False

Mammals have three middle ear bones O True O False

Elaphrobates euzeti One of approximately 130 blood flukes that have been identified in bony fish this worm infects the heart and gills of red snapper E euzeti is one of over 100 parasite species attracted to red snapper but it s the only one known to specialize on this fish s blood Griphobilharzia amoeng Crocodiles are more closely related to humans than they are to turtles But when we look at their parasites the opposite is true that is croc and turtle blood flukes are most similar This is an example of host switching in which two distantly related organisms e g crocs and turtles share a closely related parasite likely because of overlapping environments e g freshwater Hapalotrema mehrai Current research suggests that humans and green sea turtles are actually more genetically different than their blood flukes are H mehrgi looks and acts much more like the fluke that inhabits humans than the one that affects freshwater turtles Schistosoma mansoni This worm parasitizes 83 million people and can damage the spleen bladder lungs and liver S mansoni s eggs exit the body through urine and feces and then seek out aquatic snails where they multiply and grow To complete their life cycle the parasites return to the water in search of human skin to penetrate once more Spirochis haematobius As some fish were evolving into the early tetrapods that later gave rise to organisms like turtles their parasites adapted as well and began to split off into different families S haematobius parasitizes the freshwater snapping turtle and is part of a family of blood flukes that infect turtles and crocodiles BUILD A TREE MISSION 5 S mansoni H mehrai G amoena S haematobius T position 8 C position 7 T position 2 If blood flukes were to exhibit strict cophyly over millions of years you would predict that blood flukes would Evolve in a way that s completely different from their current host Evolve in a manner that parallels the evolution of their host Spread to a species that s not closely related Take a bow In cophyly parasites evolve in parallel with their hosts 1 E euzeti G amoena H mehrai S mansoni S haematobius A T T T T GC T CT CT T TC T position 4 NEXT XXX

The goal of this project is to grapple with the time scale of life on earth You will generate a history of life on earth in any medium of your choosing with the following restrictions 1 The representation must be on a linear scale not logarithmic 2 The only format that will get you no points for creative effort is a simple drawing of a timeline or creation of a checklist Making a PowerPoint or Prezi presentation or using images directly from the internet will not get you full points but is acceptable You can make Musical piece Short story or poem

1 In this experiment you will be mixing aqueous solutions of sodium carbonate and calcium chloride to produce solid calcium carbonate Na2CO3 aq CaCl2 aq 2 NaCl aq CaCO3 s Order the steps required to predict the volume in mL of 0 100 M calcium chloride needed to produce 1 00 g of calcium carbonate There is an excess of sodium carbonate Step 1 Choose match Choose match Convert mass of calcium carbonate to moles of calcium carbonate Compute the volume of calcium chloride solution required Compare moles of calcium carbonate to moles of calcium chloride based on balanced equation to calculate moles of calcium chloride required Convert the volume of calcium chloride solution required from liters to milliliters Choose match Step 4 Choose match 2 Na2CO3 aq CaCl2 aq 2 NaCl aq CaCO3 s Calculate the volume in mL of 0 100 M CaCl2 needed to produce 1 00 g of

tree you created which animal is the closest relative to humans 0 5 pt 6 2 Who is A afarensis more closely related to Homo neanderthalensis or H sapiens 0 5 pt 6 3 With which archaic human species did some of the ancestors of modern Europeans interbreed during the past 100 000 years 0 5 pt Dinka Aa 8 1 There is more genetic diversity within Africa than in all the rest of the world combined The Dinka ethnic group living in South Sudan along both sides of the Nile constitutes one piece of this diversity Its members are thought to be the tallest people in Africa Italian Fossilized teeth found in England and Italy are among the oldest known remains of modern humans Homo sapiens They date the arrival of Homo sapiens across Europe to about 43 000 years ago Most Europeans today have a little Neanderthal DNA about 1 4 which suggests that some modern humans interbred with Neanderthals either on their way to Europe or when they arrived Khoisan Modern humans evolved in Africa about 200 000 years ago Over much of the time that followed the Khoisan people of Southern Africa were relatively isolated from other groups of humans This physical separation led them to become genetically different from the rest of humanity This has happened to other isolated communities inside and outside Africa as well Papua New Guinean It s possible to extract archaic human DNA from fossils Compare that to the DNA of someone from Papua New Guinea today and you ll find that 1 2 of his or her DNA comes from Neanderthals and a further 4 6 comes from Denisovans another archaic human species related to Neanderthals This means that some modern humans who migrated to Papua New Guinea interbred with Neanderthals and Denisovans along the way Yoruba One of the largest ethnic groups in Africa the Yoruba live in Nigeria and Benin in West Africa Leanderthal fossils have never been found in Africa but recent studies have shown that many opulations in Africa including the Yoruba do have some Neanderthal DNA This DNA likely arrived on TREE MISSION 6 Khoisan Dinka Yoruba Papua New Guinean C position 11 A position 21 A positio C position 13 G position 6 5 10 15 20 Dinka G italian G Khoisan G CGC T G TCT TGT G P N Guinean A TCT T Yoruba G TGC T A With which arch human species of the ancestor modern Europe interbreed duri past 100 000 y Australopith afarensis Denisovan Homo erect O Neandertha Homo habil T position 16 SUBMIT