Biological Classification Questions and Answers

In binary fission, two exact copies of DNA attach to opposite sides of the cell's [?]. A thylakoid membrane B centrioles C plasma membrane

What taxonomic group comes below the phylum? What two taxonomic names are uniquely given to ach individual organism? a. Class. Genus and species. b. Class. Genus and order. c. Genus. Family and species. d. Family. Genus and species. e. Order. Family and genus.

Cells are in interphase 90% of the time. In a given sample of 1,000 cells, our expected value for the number in interphase would be [?], and the number NOT in interphase is expected to be Not enough information is provided 900 100

A biologist examines a single-celled organism isolated from a hot spring. The organism is a photosynthetic halophile that uses the pigment bacteriorhodopsin. In which kingdom should the biologist classify the organism? A) Bacteria B) Archaea C) Protista D) Fungi

In a particular environments, a heritable trait which is intermediate in the phenotypic spectrum has a higher probability to survive and reproduce than other phenotypes. This is a case of A) stabilizing selection B) disruptive selection C) directional selection D) Non-random mating E) Ideal Population

Studying the folding patterns of protein molecules can help microbiologists better understand cellular processes as well as some diseases, such as Alzheimer's, that are caused by proteins that have misfolded. The folding of these complicated molecules can be simulated on computers, but it takes a lot of processor power and time for even expensive supercomputers to do this. A group of researchers at Stanford University developed software that can be used to distribute the processing of data to anyone who is willing to donate time on their idle personal computers. As a result, the researchers have been able to achieve protein-folding simulations that are far better than those other computing methods have done. Which statement best describes the work of these researchers? a) The work is not scientific because the data are not processed in one location. b) The work is not scientific because the simulations are not reproducible. c) The researchers applied creativity to solve a problem in running an experiment. d) The researchers used only well-established scientific techniques.

Which of the following species is the only oxidase positive gram negative rod discussed (but not used) during the Gl lab? E. coli Klebsiella Salmonella Pseudomonas Enterobacter

Which drug does not target the cell wall? Fosfomycin Bacitracin Streptomycin Cefaclor

Type A influenza is the only type of influenza that can cause pandemics. True False

The Urea Test is used to determine if bacteria... A) Produce urea B) Produce urease C) Degrades water D) are aerobic

The sterile medium is yellow but some bacteria can turn it black. What is the name of this medium? SIM Urea Simmons citrate Starch Indole

What is the black product formed in the plate shown in the previous question? lodine Starch A black product formed with starch and iodine a black precipitate formed with hydrogen sulfide None of the above

How can we slow the rate of antibiotic resistance? By never taking antibiotics By using antibiotics until you feel better (no need to complete the whole treatment) By taking antibiotics every time you have cold, flu, or COVID-19 symptoms By taking antibiotics every time that you feel sick (no prescription needed) By taking a complete regimen of antibiotic when it is prescribed by your doctor

If bacteria show a positive citrate test then you can deduce that bacteria produce.... A) citrate permease B) citrase C) Indole A and B A and C

Which of the following modes of actions would not be fungicidal (kill fungi)? Inhibition of mitosis Inhibition of peptidoglycan synthesis Injury to the plasma membrane Inhibition of nucleic acids synthesis

This is one of the tests that you study this week. What is the name of this test? Why is the liquid on the slide bubbling? oxidase test; the liquid is boiling catalse test; nitrogen gas that is released as bubbles Ooxidase test; hydrogen peroxide is being released. catalase test; the bubbles contain oxygen gas that is being released Carbohydrate fermentation test; CO2 gas is being released

Which of the following outcomes of a carbohydrate fermentation test is NOT possible? Yellow medium and gas Yellow medium without gas Red medium without gas Red medium with gas Any of these outcomes is possible

a pamphlet which argued that 'common sense' called for the colonists to rebel against the king's "violent abuse of power". a document which stated that a ruler or government is not all-powerful and gave all equal treatment under the law. A written agreement signed by all Pilgrim men aboard the Mayflower ship, in which they agreed to choose leaders and work together to make their own laws for the colony. rights of English citizens set by Parliament in which the monarch could not violate 1. Magna Carta 2. English Bill of Rights 3. Mayflower Compact 4. Common Sense by Thomas Paine

When parents, on average, have just the number of children required to replace themselves, the natural increase of their population is at total fertility Within their territory, pack animals such as wolves exhibit a uniform distribution The growth rate of a population is the difference between the population size and the death rate O₂ will diffuse from the tissues into the capillaries

Which of the following is a good idea when it comes to interest rates? A. Pay back as much interest as possible, even if it takes you longer. B. Pay back as much interest as possible, even if it doesn't take as long. C. Pay back loans quickly to avoid interest charges. D. Pay back high interest charges slowly to build better credit.

If you invest $1,000 in a bank and begin to earn interest on not only the original amount, but on gained interest as well, what are you earning? A. simple fees B. simple interest C. compound fees D. compound interest

The Kirby-Bauer test is used to determine which carbohydrates a bacteria can firment if the bacteria can produce gelatinase if the organism can produce catalase which antibiotics a bacteria is susceptible to the type of hemolysis a bacteria is capable of producing

1. Which drug was most effective against each organism? a. SA: b. EC: c. PA: d. SC: e. BS:

3. In which stage of the bacterial growth curve is an organism most sensitive to an antibiotic? Why?

Which media is used to determine if members of the Enterobacteriacae is mole Sulfur Indole Modlity (SIM) MacConkey Agar Kligler's Iron Agar (KIA) Urea Broth

In what form of study are phylogenetic independent contrasts calculated? observational experimental comparative all the above Onone of the above

Watch this video and photos of antiseptic Kirby-Bauer plates. You may want to consult pages 277-278 in the lab manual. Answer the following questions and upload the same assignment folder. 1. Which antiseptic was the most effective against each bacteria? 2. Where the antiseptics equally effective against each bacteria? 3. Which bacteria was the most resistant to these antiseptics? Does that mean that there are no antiseptics that will work against this bacteria? 4. What properties of an antiseptic/disinfectant could influence the size of the zones of inhibition?

Which answer best completes the following statement? Select the best answer. Jacob is suffering from anorexia nervosa. He is likely to . be a Hispanic male from a Western society purge the food by inducing vomiting or through the use of laxatives develop anxiety, mood, or substance abuse disorders

Which of the following drugs are components of the topical antibiotic treatment neosporin? (Mark all that apply). Bacitracin Polymyxin Vancomycin Neomycin

Smoking damages the cilia present on many respiratory epithelial cells. Why is this a problem for smokers? Explain your reasoning.

The Soleus tetanus peaks are fused, which means that they do not completely relax before peaking again. Why might the soleus show fused tetanus peaks and higher forces at a lower stimulation frequency than the EDL? a) The soleus can generate ATP faster b) The soleus absorbs calcium more slowly than the EDL c) The EDL is faster at pumping calcium out of the cytoplasm d) The EDL can generate ATP faster

Virus and prions differentiate from other pathogens that cause diseases in humans such as bacteria, fungi, and protists in that virus and prions... replicate faster inside the host cells cause more serious diseases that are harder to control cause damage of the host cells are not cells are only composed of proteins and nucleic acids

A. Did the bees fly to the plant that you chose? B. What happens to the nectar and pollen, as shown by the bars at the top of the Gizmo? C. Go back inside. How much honey is in the hive now? D. Does it look like there is more honey and pollen in the hive? How can you tell? E. How many bees are in the hive? F. Did the number of bees go up from the beginning?

The bulb of the open-end manometer shown above contains a gas. True statements about this system include which of the following? I. Only atmospheric pressure is exerted on the exposed mercury surface in the right side of the tube. II. The gas pressure is greater than atmospheric pressure. III. The difference in the height, h, of mercury levels is equal to the pressure of the gas. (A) II only (B) III only (C) I and II only (D) I and III only (E) I, II, and III

What does it mean to say that extension by DNA polymerase III proceeds 5'-3'? The 5' end of a DNA polymerase molecule attaches to the 3' end of primase. DNA polymerase adds nucleotides to a growing strand, moving in the 5'-3' direction. DNA polymerase seals nicks as it moves along a DNA strand toward the 3' end. DNA polymerase can only synthesize DNA at the 5' end of an existing strand of DNA.

In general, utilitarianism tells us to: A. Maximize the good for the greatest number B. Minimize suffering to the greatest extent possible C. Recognize that all sentient beings are worthy of moral consideration D. All of the above

Interpret: A boat is looking for a safe passage from the beach at the top (north) end of the map to the open ocean at the bottom (south) end of the map. On the maps you have made in the previous question, use a marker to trace a continuous route that is at least 4 meters deep the whole way. In the space below, write the latitude and longitude of five points along this route.

Viruses can be identified using... All the options are correct Electron microscopy Serological tests based on the use of antibodies Plaque formation Cytopathic effects on host cells

When bacteriophages lyse bacteria cells, they generate clear circular areas in a confluent "lawn" of bacteria. These clear circular areas are called..... holes plagues phages cell lysis viral plaques

Temperate bacteriophages can have either a lytic or a lysogenic cycle True False

In which of the following steps of the viral infection process are bacteriophages and animal viruses similar? Uncoating Penetration Attachment to host's cell plasma membrane Biosynthesis (production of viral nucleic acids and proteins) Release by budding

When the viral DNA is incorporated into the DNA of an animal cell, the virus becomes a ... temperate cell prophage lysogenic cell provirus lytic virus

Why are viruses considered nonliving? Because they don't have protein shell Because they don't have nucleic acid Because they can not reproduce by themselves Because they have spikes that can anchor the host

Proto-oncogenes are... A. genes that cause cancer B. Viral genes in oncoviruses C. Normal genes that regulate cell growth and differentiation D. Normal genes that stop or slow down the cell cycle E. Genes that allow uncontrolled cell growth during cancer

Oncogenic DNA virus... A. Always cause cancer B. Have only RNA C. Are used to treat cancer D. might cause cancer E. contain lysozyme

What is "antigenic drift"? A. A new subtype of virus generated by mixing two or more different viruses B. The frequent generation of mutated virus that produce new strains of viruse C. Antigenic variation observed in oncoviruses D. The antibody-production induced by viral infections E. None of the above

What are aflatoxins? A mycotoxin produced by Candida albicans A drug used to treat migraine headaches A fungal toxin that can cause hallucinations A type of mycetismus A toxin produced by Aspergillus flavus that contaminates food crops and its ingestion can cause cancer

1. Which one of the following statements about fungi is incorrect? A. The fungal cell wall is composed of mannans, glucans, or chitin B. They are unicellular or multicellular C. They are sensitive to antifungal drugs D. They have sterols in their cell membrane E. They form protective endospores in adverse environments

describe lysogenic conversion and its significance [10]

What element of gothic literature is evident in the following lines from "The Raven"? Line 49-54: Much I marvelled this ungainly fowl to hear discourse so plainly... For we cannot help agreeing that no living human being Ever yet was blessed with seeing bird above his chamber door - With such name as `Nevermore! A. Element 7 -- Damsels in distress B. Element 5 -- Highly charged emotional states like: terror, obsessive love C. Element 6-Supernatural events: ghosts, unexplained sounds, etc.