Biomolecules Questions and Answers

What force s stabilize s lipid bilayers Select all that apply Oa covalent bonds between the lipid tails b electrostatic bonding between the polar heads and surrounding water OC covalent bonds between the lipids and membrane proteins Od hydrogen bonding between the polar heads and surrounding water e van der Woola in

What is the driving force for ion movement in the Knock On model which suggests that the ions never occupy adjacent sites O a charge attraction b charge repulsion OC patch clamp Od interaction with water Oe interaction with carbonyl groups

What is the function of cAMP phosphodiesterase Oa It inactivates protein kinase B b It activates protein kinase A OC It converts cAMP into AMP Od It joins two R and two C subunits of the PKA e It phosphorylates other proteins

What is the composition of the Ca2 binding motif of the EF hand protein family a helix loop helix b helix turn helix zinc fingers O d leucine zinner

What is an acid Give an example of an acid What is a base Give an example of a base Fill in the blanks When acids dissolve in water they release dissolve in water they release express the ions when bases ions The scale is use to ion concentration of a solution A solution which is neutral while the Molecules which combine with or release A has a pH of The pH of an acidic solution would be pH of a basic solution would be hydrogen ions in order to prevent drastic changes in pH are called

How did black Christianity in the South differ from black Christianity in the North

Which question is not answered by the Article A How did Marley Dias get books for her book drive B What percent of Gen Z ers are people of color C When did Mari Copeny raise money for clean water D How does Greta Thunberg reach people all

Oxidation of biological molecules e g glucose Is anabolic Is amphipathic Is autotrophic Involves gain of electrons OIs exergonic

Which of the following is NOT part of the pathway for transfer of electrons from NADH through the ETS O Complex I Complex II Complex IV Ubiquinone Coenzyme Q

The reduction potential of FAD is Higher Lower The same than as that of NAD

The half reaction shown below is a an NADH NAD H 2e Oxidation Reduction reaction

In the Yeast Fermentation lab activity you set up four treatments to investigate what yeast cells need to carry out fermentation Treatment Yeast 1 2 3 4 4 mL 4 mL 4 mL Boiled yeast 4 mL Sugar 5 glucose 5 sucrose 5 sucrose Water distilled water Which treatment should have the highest rate of fermentation Justify your answer in other words explain why the other three treatments should not ferment as quickly

Describe how changing substrate concentration affects enzyme activity Use all relevant terms Edit View Insert Format Tools Table

The movie below shows some molecules in a tiny sampl 123 I 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 IIL Drag the slider to see how the molecules move

Replication Each of these four organisms began life as a single 2N cell Cells in each organisms divided and differentiated Probably the single most important process that ensured genetic continuity in all fou organisms was DNA Translation 2 3 O Alliteration 3 S Transcription

Some eukaryotic organelles membranes don t match the DNA of the plasma membrane suggesting they were engulfed A randomly C unintentionally B intentionally D never

Endosymbiosis refers to chloroplasts and mitochondria literally other cells A mimicing C living within B engulfing D randomly absorbing

A tenant of is that a cell pinched off and incorporated a more primitive cell which then functioned as an organelle A spontaneous formation C exosymbiotic theory B endosymbiotic theory D cell fragmentation

Endosymbiosis suggests that a heterotrophic cell that engulfed a chloroplast would have become a n A thermophile B detritovore C autotroph

What is the CORRECT way to classify the protein bel inno

The secondary structure shown below is an example of a n R of Oleft handed a helix OB turn O antiparallel sheet right handed a helix I LIL 01 R NII LI R 20 R 20 R

The secondary structure shown below is an exam eee O parallel sheet Oright handed a helix Oleft handed a helix

DOUDIE stranded Has ribose polynucleotide ION 2

It s hypothesized that cells formed spontaneously in the primordial soup but without further change could not A infold an organelle C absorb anything by infolding B form lysozomes D pass on their traits

When cell membranes first formed they often trapped but occasionally could trap something functional like a A protist C proteins B nothing D bacteria

It has been shown that through chemical interactions alone cell membranes can spontaneously A form a phospholipid trilayer C excrete waste B combust D trap functional substances

What is released when two organic molecules are bonded together in what is known as a dehydration reaction A Water C Oxygen B An electron D Hydrogen

Which of the following are the two post reading or reading

Which factor is most likely to determine the ability of a population to adapt to changes in its environment A Producing genetically identical offspring B Developing a behavior that s specific to the original environment O C Being well adapted to only one kind of environment O D Having a variety of genes in offspring

Match the reaction with the correct EC Group HO 0 HO C05778 HO OH H3C FC 4 Lasoc NH N N NH CH3 OH O EC 1 Oxidoreductases O EC 2 Transferases O EC 3 Hydrolases OH OH OH Co2 C00175 2 H C00080 HO HO C11538 O HO

ultiple choice questions on th stion 10 roquinolones such as ciproflox

Fluoroquinolones such as ciprofloxacin are synthetic drugs that interfere with the action of DNA helicases This means that O the cell will die because it cannot make folic acid which is a precursor to DNA and RNA as well as amino acids O the bacterial cell will die since it cannot replicate or transcribe its DNA O the bacterial cell will die since it cannot take in nutrients across the cell membrane Obinary fission cannot take place because the cell cannot make proteins

S questions on this quiz Since we are online I

QUESTION 1 Cytology is the study of effect stains cells The Papa dar

In the dissected shark above 4 is a small intestine b stomach Oc liver d spleen 5 e gall bladder 20

noitests fi Exercise 2 Incomplete Dominance Background Incomplete dominance is when two different alleles for the same trait combine but neither allele is fully expressed over the other The offspring have a form of intermediate inheritance The heterozygous offspring show a phenotype that is in between the phenotypes of the two homozygous parents The human trait for autosomal recessive familial hypercholesterolemia mutation of LDLRAPI allele not as common as other mutations for high cholesterol is an example of incomplete dominance People with normal cholesterol levels below 200 mg dl are homozygous dominant HH These folks can maintain a normal level of blood cholesterol People who are heterozygous Hh for hypercholesterolemia tend to have blood cholesterol levels that are normal to moderately higher than normal These folks must maintain a low fat diet and exercise to maintain their cholesterol level People who are homozygous recessive hh for cholesterol tend to have a blood cholesterol levels significantly higher than normal and will need cholesterol lowering drugs to maintain healthy cholesterol levels Instructions Create a Punnett square depicting what you believe to be your parents genotypes for hypercholesterolemia in the space below Explain what information you used to determine each of your parents genotypes What are your chances for being at risk for hypercholesterolemia as based on your Punnett square results Explain Fynlain how this information relates to your personal health

A researcher recently discovered a species of bacteria DNA sequences were obtained from it and from several other species of bacteria The DNA sequences came from the same part of the bacterial chromosome of each species Species I Species II Species III Unknown Species Species I Species II Species III Species IV Species IV DNA Sequence ACT GCA GOC GCG CCG ACA According to the data above the unknown bacteria are most closely related to which species ACT GCT GGC ACA GCC GGG ACT GCA GCG POSSIBLE POINTS 1

POSSIBLE Traits that are better adapted to an environment will increase in frequency in a population O True O False

Drag and drop the components of Mendel s experiments and laws of probability to match with their description Hypothetical inheritance pattern in which parental traits are blended together in the offspring to produce an intermediate physical appearance Inheritance pattern in which a character shows a range of trait values with small gradations rather than large gaps between them Inheritance pattern in which traits are distinct and are transmitted independently of one another Probability of two independent events occurring simultaneously can be calculated by multiplying the individual probabilities of each event occurring alone Probability of the occurrence of at least one of two mutually exclusive events is the sum of their individual probabilities Discontinuous variation Blending theory of inheritance Sum rule Continuous variation Product rule

15 Propose a reason Why might the bacteria need to be manipulated and coaxed to take up plasmid DNA in the lab in this way

Drag and drop the terms to complete the concepts of genotypes and phenotypes 1 When true breeding or homozygous individuals that differ for a certain trait are crossed all of the offspring will be 2 If traits are inherited as dominant and recessive the F offspring will all exhibit the same 3 Because homozygous dominant and heterozygous individuals are phenotypically identical the observed traits in the F offspring will exhibit a ratio of three 4 5 6 Genes that are present on the X but not the Y chromosome are said to be 7 Dominant lethal alleles are fatal in dominant for that trait as the parent which is homozygous for the dominant trait describes situations in which the heterozygote exhibits a phenotype that is intermediate between the homozygous phenotypes describes the simultaneous expression of both of the alleles in the heterozygote such that males only inherit one allele for the gene and females inherit two Codominance recessive heterozygous individuals X linked phenotype heterozygous Incomplete dominance to one

Recessive lethal Sex linked X linked Dominant lethal Gene present on the x but not the y chromosome Inheritance pattern in which an allele is lethal both in the homozygote and the heterozygote Any gene on a sex chromosome Inheritance pattern in which an allele is only lethal in the homozygous form

scription F F P Parental generation in a cross Second filial generation produced when f individuals ar crossed or fertilized with each other First filial generation in a cross the offspring of the paren

Which sentence is true of group behaviors OA Group behaviors are performed only by mammals B Group behaviors are performed only when individual behavi have failed OC Group behaviors are common in prey organisms but are not observed in predatory organisms D Group behaviors benefit a population of organisms as well as individuals

What issues were added to the Clean Air Act during the 1990 amendments Select all that may apply Acid rain Ozone depletion Pollutants associated with silver mines Urban smog Lead in car exhaust 25252 15 DOS D LE LE EEN 05 S

What are volatile organic compounds Carbon based liquids that quickly evaporate Colorless gasses that have a foul smell Colorless gases that are not released directly into the air Carbon based liquids that don t evaporate

What pollutants do catalytic converters help to neutralize before car exhaust is released into the atmosphere Select all that may apply Sulfur dioxide Nitrogen dioxide CFC s Carbon monoxide Lead dioxide

2 In order for fission rea self perpetuating me going What do you d needed for the reactio bebubong

Dentists sometimes give a patient antibiotics after a teeth cleaning procedure especially if the patient is older or has heart disease What is the best explanation for this The materials used during a teeth cleaning procedure are high in low density lipoproteins and contribute to atherosclerosis O Teeth cleaning procedures add bacteria to a person s mouth and antibiotics are needed to control the bacteria O Antibiotics help kill the bacteria that move from the mouth to the bloodstream and prevent the bacteria from contributing to atherosclerosis Antibiotics help remove the plaque that remains on the teeth after a teeth cleaning procedure

Which of the following can increase your risk of atherosclerosis O avoiding cigarettes O avoiding exercise O avoiding sugary snacks O avoiding a diet high in saturated fat O avoiding high blood pressure