Biology Questions

ou are studying the cell walls of gram negative bacteria You have solated the components of their cell walls and run a chemical nalysis of what you have isolated What component listed below would be toxic to eukaryotic cells such as human cells the cellulose the protein the peptidoglycan NAG O the lignin the namelyenccharides

Which of the following trait s do archaea and bacteria share 1 absence of a cell wall 2 presence of plasma membrane 3 lack of a nuclear envelope 4 well developed organelles O2 and 3 O2 and 4 O 3 only O 1 only 1 and 2

Diploid nuclei of the ascomycota fungus Neurospora crassa contain 14 chromosomes A single diploid cell in an ascus will eventually turn into a total of eight ascospores What is the chromosome count in a single mature Neurospora ascospore O 14 28 none of the above 07

sing the picture to the right which of the following would be onsidered a basal taxon A B C D E

certain unicellular eukaryote has a glasslike shell and exhibits totrophic nutrition When it dies this glasslike shell is not graded unless acted upon by bacteria To which clade does it long O Excavata O Unikonta O Archaeplastida Chromalveolata

Mycoplasmas are bacteria that lack cell walls On the basis of this structural feature which statement concerning mycoplasmas should be true They are gram negative O They possess typical prokaryotic flagella They could lyze when osmotic conditions change O They should contain less cellulose than do bacteria that possess cell walls They lack a cell membrane as well

How might the life cycle of Diphyllobothrium latum demonstrate an evolutionary relationship to that of the flukes

In relation to the scolex describe where one would find mature gravid proglottids

In fungi karyogamy does not immediately follow plasmogamy Because of this what consequence would result it means that sexual reproduction can occur in specialized structures Oit results in more genetic variation during sexual reproduction it is strong support for the claim that fungi are not truly eukaryotic for the claim that fungi are not truly eukaryotic Oit results in heterokaryotic cells comprised of two distinct nuclei Oit allows fungi to reproduce asexually most of the time

Which prokaryotes should be expected to be most strongly resistant to lysis i e bursting when found in very hypertonic environments O cyanobacteria nitrogen fixing bacteria that live in root nodules extreme thermophiles methanogens extreme halophiles MEM

Give one parasite and the condition it might cause when infecting dead end hosts

You are tutoring a fellow student about the genomes of prokaryotes You sk them to give you one important characteristic about the genomes of bacteria Which of the following statement given by your student is correct The bacterial chromosome is not contained within a nucleus but rather is found at the nucleolus O Bacterial cells can contain DNA called plasmids O Bacterial cells have multiple chromosomes packed with a relatively large amount of protein O Bacterial genomes are composed of linear DNA Bacterial genomes are diploid throughout most of the cell cycle

Clade Clade Chromalveolata Clade Archaeplastida Clade Excavata Clade Rhizaria

estion 19 ntify this structure at the arrow

Fill in the Blank Clade Clade Chromalveolata Clade Archaeplastida Clade Excavata Clade Rhizaria Question 19 Identify this structure at the arrow

If an ancestral protist was classified as an opisthokont then what should be true of this protist They should also have given rise to the plants O Like diplomonads and parabasalids they should bear multiple flagella They should be parasitic O They should perform heterotrophy by secretion of exoenzymes They should be the common ancestor of the basidiomycetes and

There were a few examples of humans being dead end hosts for parasites in this unit What does a dead end host mean for a parasite

Identify this structure at the arrow

To which of the 5 clades do these organisms belong V

Identify these structures at the arrows

Question 9 Identify these structures at the arrows

Select one a 6 Organization for Matter and Energy Flow in Organisms Question 4 Which step of cellular respiration is responsible for producing the most amount of ATP 81 O Krebs cycle O Electron transport chain O Glycolysis O Calvin cycle

s ces g 0 Question 15 What is pictured in this circle 9 O

Question 14 Identify the structure at the arrow PR 1 pts Q

Organization for Matter and Energy Flow in Organisms Question 10 What is carbon fixation Select one 80 O A process that happens during the light reactions It s when energy is captured in sunlight then used to convert NADP to NADPH O A process that happens during the Calvin cycle It s when nitrogen from amino acids is added to an existing nitrogen molecule O A process that happens during the Calvin cycle It s when carbon from carbon dioxide is added to an existing carbon molecule to build a glucose molecule A process that happens during the light reactions It s when energy is captured in sunlight then used to convert ADP to ATP

hat phylum would you find this organism

D New Tab courses 193688 quizzes 1487370 take Question 12 F2 30 Identify the phylum division for this organism 3 80 F3 X 4 8888 F4 Quiz Biology 7 Lab Exam 1 5 FS 6 X MacBook Air F6 7 New Tab 44 F7 DII FB X DA F9

accd edu courses 193688 quizzes 1487370 take Question 13 Identify the structure at the arrow 1 pts

Plasmin trypsin and cathepsin G are all serine proteases Which statement about these proteins is FALSE They are homologs with similar sequences inherited from a shared ancestor They are members of the same protein family They are enzymes that catalyze the synthesis of serine Their three dimensional structures are similar to each other though not identical All of these statements are false

Read the statement DNA is a nucleic acid made of building blocks called nucleotides Which of the following options make up nucleotides Choose all that apply 0 phosphate group An amino acid A sugar

Which of the following statements is TRUE O Membrane fluidity is necessary for the membrane fusion that occurs during vesicle transport O Glycolipids are found in equal numbers on the cytosolic and non cytosolic sides of the plasma membrane lipid bilayer The cytosolic surface of transport vesicles will become the extracellular surface of the plasma membrane Phospholipids rapidly flip flop between the surfaces of the lipid bilayer without the aid of enzymes All of these statements are true

1 Two types of electron carrier molecules NADH and FADH2 are produced during glycolysis and the Krebs cycle Select one 81 Which option describes how these molecules are used during the electron transport chain O They are used to combine with pyruvate to create another glucose molecule O They are broken down to produce water and hydrogen O They are used to transport carbon dioxide out of cells O They power ATP synthase to produce ATP

8 This graph shows the braking distances for different cars measured under the same conditions Which is an accurate statement about the graph Acura RL Honda Accord Volvo S80 100 120 140 160 180 Braking Distance feet 200 OThe graph depicts the data accurately giving a good comparison of the braking distance for the three types of cars The graph unfairly favors the Volvo 80 showing that it has the shortest braking

A tree like diagram that shows related organisms that descended from a common ancestor

He should do his homework a little better because he ll find out that we ve had a 10 decline of 5 million in the farm population under these government programs He ll also find that the Democratic administration has sought to get from Congress an extension of the farm program to include that three fourths that is now free A Reagan bases his argument on fact He should do his homework a little better B Reagan bases his argument on fact we ve had a decline of 5 million in the farm population C Reagan s argument is speculation we ve had a decline of 5 million in the farm population D Reagan bases his argument on emotion we ve had a decline of 5 million in the

Refer to the metabolic pathway illustrated below The feedback inhibition illustrated by the red arrow will result in the decreased production of which of the following molecules Mark all correct answers B A 1 E D E G OK B F G C D H H J K

Mutation 2 is a mutation that is not near the enzyme s active site but still inactivates the enzyme Briefly explain how this mutation could eliminate MAP kinase function Again 1 2 sentences is sufficient

Complete the following sentences Allosteric inhibitors bind at a protein s active site Km is a measure of an enzyme s binding affinity Covalent attachment of a polyubiquitin chain can anchor a protein in the membrane

is high in beta carotene has no effect on the proliferation of breast cancer cells in the lab none of these responses is correct has been shown in clinical trials to reduce the risk of heart disease has been shown in clinical trials to cure some cancers contains natural aromatase inhibitors Question 2 1 point Most minerals necessary for body function are found naturally in foods and water in the ionic form found usually as supplements since food does not normally contain mineral materials ingested as elements and then changed to ions in the body none of these responses is correct found mainly in water in the elemental form

You are studying a newly identified membrane protein using single particle tracking microscopy You repeat the experiment many times and consistently get similar results as shown in the three cells below What is the most likely explanation for this observation A The protein is attached to the cell s cytoskeleton B The protein is attached to the extracellular matrix A GUTHe calle

Many purified proteins can maintain their correct folded structure if purified into a solution with the correct pH and salt concentrations What would typically happen to a purified protein if a high concentration of urea a molecule capable of disrupting hydrogen bonds is then added to the solution The loss of hydrogen bonds will break the protein up into individual amino acids The protein will become unfolded It could refold if the urea is removed because amino acid sequence alone is sufficient to determine a protein s folded shape The protein will maintain its correctly folded shape because hydrogen bonds are not important for protein folding The protein will become unfolded It won t refold if the urea is removed because proteins require chaperones to determine their correct folded shape

The recorder point for amoxicillin 250mg is 4 and the maximum is 7 How many bottles should be ordered if there are 4 bottles of amoxicillin 250mg

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In the habitat of a chipmunk population an earthquake creates a giant crevice that is 10 miles long and too far across to jump Chipmunks now reside on both sides of the crevice What type of isolation is being described

Early cell P Pearson Archaea Nucleolus Eukarya Membrane enclosed nucleus Cytosol Endoplasmic Reticulum Bacteria CHA www DNA Eukaryote Prokaryotes vs Eukaryotes CH Mitochondrion Chloroplast Mitochondrion Capsule Copyright 2019 Pearson Education Inc All Rights Re Ribosomes MAD Plasma Membrane Prokaryote 474 www Pilis

How is repetition used in the following passage from Thomas Paine s The Crisis No 1 What we obtain too cheap we esteem too lightly A cheap and lightly are repeated to establish an allusion to the Bible B we and too are repeated setting up the contrast of obtain too cheap and esteem too lightly C obtain and cheap are repeated to establish common ground and use logical reasoning D what and obtain are repeated to establish a logical argument and use

Select one a Dg Cycles of Matter and Energy Transfer in Ecosystems Question 1 Which statement correctly describes energy transfer in ecological pyramids D8 Ten percent of energy available will go on to the next level O Fifty percent of energy available will go on to the next level O A hundred percent of energy available will go on to the next level Ninety percent of energy available will go on to the next level

the following confusing pronoun antecedent They went to the mall with Joanna A Human beings went to the mall with Joanna B People went to the mall with Joanna C Everyone went to the mall with Joanna D Chris and Todd went to the mall with Joanna

What kind of genetic information is most likely to be found on a plasmid Duplication of the entire genome Essential O Non essential Impossible to predict

Drag the terms to the correct boxes to complete this infographic on the general parts of the eukaryotic cell Otoskeleton External Mitochondria GHO Glycocalyx Internal Saved Ribosomes Chromosomes EUKARYOTIC CELL membrane Boundary Cell Wall