Biology Questions

Which of the following statements about hydrolysis reactions is correct Water is produced as a result of a hydrolysis reaction Hydrolysis reactions are energetically favorable In cells enzymes are not used or required for hydrolysis reactions Hydrolysis reactions create covalent bonds between molecules to produce larger molecules All of these statements are correct

Which function of money is carried out when we use the U S dollar to compare the relative values of different goods and services A standard of deferred payment B store of value C medium of exchange D unit of account

T and B cells are active functional ALL the TIME even when there is no infection nor exposure to microbe that or B cells recognize True False

What is the calibration of this graduated cylinder A 1 mL B 2 mL mL calibration difference between 2 marked values of spaces between marked values C 5 mL 70 D 10 mL 65 60

In an experiment studying the effect of music volume on plant growth where would height of the plant over time go in an IV C DV chart A Independent Variable IV B Constants C C Dependent Variable DV

what is the function of CTL activated CD8T cells O release cytokines that help to activate CD4 T cells and B cells make release antibodies do phagocytosis O present antigen kill infected cells O turn on complement

An antibiotic can be used as a drug when people figure out a way to modify it so that bacteria cannot overcome them O when it is proven NOT to cause resistance in bacteria when it s shown to have selective toxicity as soon as it s discovered when your instructor says so

which of the following is a role of the lymphatic system O brings microbes antigens into contact with T and B cells causes the symptoms and signs of inflammation such as redness and swelling transports complement to site of infection transports type 1 interferons to site of infection

Why was January 1 1867 so important in terms of voting for freed men OIt is the date that the Fifteenth Amendment was ratified It is the date that African Americans became eligible to vote O It is the date that became the focal point of the grandfather clause

What major event during the first half of the 20th century changed the economic and social power of future Presidents and how they would lead A World War II B Great Depression C World War I

The density data for a metal was collected in the table to the right The metal was thought to be aluminum which has a density 2 7 g cm3 Trial 1 2 3 Average A The data is both accurate and precise Density g cm 2 1 2 1 2 0 2 1 B The data is accurate but not precise C The data is not accurate but is precise D The data is neither accurate nor precise

Which of the following Presidents was responsible for future Presidents only being able to serve two terms A John F Kennedy B Franklin D Roosevelt C Richard Nixon

O is defined as preventing microbes or toxins from attaching to our cells O is NOT done by complement is something that ANTI BIOTICS instead of anti bodies do to bacteria to control or eliminate them O is something done by anti BODIES immunoglobulins only helps facilitates phagocytosis

All cells share some fundamental traits most likely inherited from our shared prokaryotic ancestor that existed around 3 5 billion years ago Which of the following is NOT a trait shared by all cells OCytoplasm surrounded by a lipid bilayer Genetic information encoded in DNA within the nucleus Ribosomes that translate mRNA into proteins Activated carriers such as ATP to store useful energy

passage By 1900 more than 30 000 black teachers had been trained and put to work in the South and the literacy rate had climbed to more than 50 percent a major achievement in little more than a generation Based on this passage and your own knowledge the training of teachers and the literacy rate were major achievements brought on by O Reconstruction O Jim Crow laws C

Which of the following statements is incorrect Both sugars and fats are used as energy sources for cells The activated carrier ATP is a nucleotide O Phospholipids can form lipid bilayers membranes because they are amphipathic Nucleotides are joined together by phosphodiester bonds to form proteins All of these statements are true

What does the range of a dataset tell us A the central tendency of the values within a dataset B the value that appears most often in a dataset C the difference between the lowest and highest values D the difference between the accepted and experimental values

Why were schools mainly private in the 19th century O Public education was not mandatory O Funds were mainly directed to private schools Only rich people had access to it

Which of the following securities is expected by its owners to pay interest A bonds B common stock O C preferred stock O D depository receipts

Which of the following is NOT part of a scientific experiment A Read the whole procedure before starting B Wear PPE to avoid physical harm or hazards C Only post results that support your hypothesis D Gather and label all materials that you will be using

what is the advantage of using broad spectrum antibiotics O they are also effective against diseases caused by viruses helps to maintain normal flora population ie affects disease causing bacteria but not normal flora controls spread of resistance by wiping out resistant bacteria Othey specifically kill pathogenic bacteria O keep patients alive until pathogen is identified

What is the purpose of an experiment A to test a hypothesis demonstrate a fact or make a discovery through a general procedure B to create new laws about the natural world C to explain the origin of life

Which of the following statements about mitochondria is false They are present in both plants and animals They most likely arose from ancient engulfed bacteria O They are endosymbiotes dependent upon eukaryotic cells to survive They are the location of aerobic cellular respiration in eukaryotic cells All of these statements are true

Carefully read the following quotation The city of Memphis has demonstrated that neither character nor standing avails th Negro if he dares to protect himself against the white man or become his rival There is nothing we can do about the lynching now as we are out numbered and withou arms Based on the quotation and your own knowledge who do you think wrote these words O Booker T Washington

What is the calibration Erlenmyer calibration difference between 2 marked values of spaces between marked values A 10 mL B 25 mL C 50 mL of this flask D 125 mL 925 100

shows how and when and why giraffes evolved from their Okapi like ancestor Get TMRCA data get genetic data genes analyzied

Consider the following reaction Glucose 6 phosphate Fructose 6 Phosphate This essential step in glycolysis is energetically unfavorable under standard conditions Which of the following would make the actual AG more energetically favorable thus helping to drive this essential metabolic reaction forward CHOOSE TWO ANSWERS Increasing the amount of glucose 6 phosphate Increasing the amount of fructose 6 phosphate Removing fructose 6 phosphate as it is made Removing glucose 6 phosphate so that it is limiting

This is the strongest bond in an aqueous environment such as inside cells and is responsible for the formation of organic molecules Hydrogen bond O lonic bond Covalent bond van der Waal interaction

What is the effect of an enzyme catalyzing a chemical reaction The enzyme is altered and can no longer catalyze reactions The enzyme alters the equilibrium constant K of the reaction to favor the production of more output The enzyme lowers the activation energy of the reaction speeding up the reaction in both directions The enzyme increases the standard free energy change AG of the reaction so that more output is produe All of the above

The President of the United States cannot do which of the following on his own A Create a budget B Declare war C Send troops to another land D Veto a bill

Please use the information in the passage to the left to help you answer the question 5 Which of the following would be considered the CONTROL group in this experiment A the group with 25 mL fertilizer B the group with 15 mL fertilizer C the group with 5 mL fertilizer D the group with 0 mL fertilizer An experiment is testing how different fertilizers affect plant growth The following groups are created 2 3 A group with 25 mL of fertilizer A group with 15 mL of fertilizer A group with 5 mL of fertilizer 94 Resources apph

of the following would NOT be considered qualitative data A the heights of a plant B interview questions C observations of an animal in its habitat D recording the color change of a chemical reaction

WHERE are T cells and B cells activated O in the lymph vessels O in the skin in lymphoid tissues organs such as lymph nodes at the site of infection

In what way has the role of the U president and impact on policy making changed the 20th century A The office has become more powerful B There has been little change in the power of th office C The office has become less powerful D The office has become less important

Amino donate a proton to water groups are weak acids That means they will Select a decrease an increase resulting i in the solution s pH

What is an independent variable A the object being used in the experiment B the variable that is changed and being tested C the information that you record or observe D the observation made that began the experiment

Which of the following is NOT true of W E B Du Bois O He helped bring legal challenges to segregation and lobbled hard for African Americans full liberties He established what is now know as the NAACP O He accepted segregation and believed whites and blacks could work together for social progress

What is a control A the group under normal conditions that is not experimental B the variable that is changed and being tested C the information being recorded or observed

Which type of microscopy can be used to image intact cells while they are alive and functioning O Light microsopy Electron microscopy Both light and electron microscopy Neither light nor electron microscopy

Which of these is the dependent variable I felt sick so I skipped dinner A I felt sick B I skipped dinner C These are both independent variables

Which of the following molecules has the most useful energy stored in its chemical bonds O ATP Adenosine trisphosphate O ADP Adenosine diphosphate AMP Adenosine monophosphate All three molecules have the same number of high energy bonds

Suppose both groups used the 6 same type of toothbrush throughout the experiment Where would same type of toothbrush go in an IV C DV chart A Independent Variable IV B Dependent Variable DV C Constant C Experimental Design Dental Experiment Consider the following experiment Use it to help answer the question A dentist wants to know if her patients dental habits affect how likely they are to get cavities She conducts the following experiment using two subject groups Group 1 brush their teeth and floss twice per day Group 2 continue their usual poor dental habits only occasionally brushing and flossing Resources

Which of the following set of countries belonged to NAFTA when it was adopted in 1994 A U S Mexico and Cuba B U S Mexico and Honduras C U S Mexico and Canada

Which of the following animal phyla have 3 cell layers 3 layers of embryonic tissue Check all that apply Cnidaria Porifera Platyhelminthes

Study this quotation We consider the underlying fallacy of the plaintiff s argument to consist in the assumption that the enforced separation of the two races stamps the colored race with a badge of inferiority If this be so it is not by reason of anything found in the act but solely because the colored race chooses to put that construction upon it Based on this quote and your own knowledge this portion of a Supreme Court opinion is the basis for the set up in Plessy v Ferguson O integration O separate but equal doctrine O assimilation

AS IS TO IS TO Painting Which of the following BEST completes the analogy O Samuel Langhorne Clemens Writing Thomas Cowperthwait Eakins Thomas Cowperthwait Eakins Writing Samuel Langhorne Clemens

Below is the character matrix for five species of monsters 1 indicates the presence of the character and 0 indicates the absence of the character Species Species 1 Species 2 Species 3 Species 4 Species 5 Steel claws 0 1 1 1 1 O bulletproof armor O steel claws acid blood and bulletproof armor Osteel claws and acid blood Osteel claws O acid blood Acid blood 0 0 1 1 Character 1 Bulletproof armor Ability to fly 0 0 0 0 1 Based on the character matrix above which shared derived character evolved earlier than the ability to fly 1 0 0 0 1

trait is absent Character Cell membranes present Leaves present Paired limbs present O Willow Parrot Cow y O Willow Cow Parrot Willow O Willow Parrot Cow Y Y N Parrot Y Based on the character matrix above which of the three possible trees below is the most parsimonious N Y Cow Y N Y

Angiosperms 0 1 O 3 O 2 T 0 4 4 Gymnosperms U 3 Ferns 2 at In the phylogeny above the common ancestor of all land plants is the organism at point Note Charophytes are green algae Mosses R 1 P Charophytes

Which president passed Medicare and Medicaid and increased presidential involvement in social issues such as Civil Rights A Dwight Eisenhower B Harry S Truman C Lyndon B Johnson D Ronald Reagan