Which of the specimens is a prokaryote cell?     A. staphylococcus and E.coli   B. rhinovirus and Ebola virus   C. red blood cell and lymphocyte

Q: The bacterium Staphylococcus aureus is ___________ in shape and ______________ in arrangement.

A: Bacteria are prokaryotic organisms which vary in different size, shape, and arrangement. According…

Q: What is the relationship between normal flora Escherichia coli (E. coli) and STEC?   A When normal…

A: Answer is :. Normal flora E. Coli do not make shiga toxin, but STEC are E. coli that do make shiga…

Q: Choose the combination of answers that most accurately completes the statement.The envelope of an…

A: A cell is a small self-contained unit within whole organisms. It is the littlest unit of the body.…

Q: Choose the combination of answers that most accurately completes the statement. Viruses cannot be…

A: Viruses are obligate parasites. They are non cellular entities which have their RNA (ribonucleic…

Q: a. Since viruses lack metabolic enzymes, how can they synthesize necessary components? b. Name some…

A: Viruses are infectious agents that can only replicate inside a living host cell. They are inactive…

Q: Which are considered Zoonotic diseases? Select all that apply. O Ebola O HIV O Rabies Hantavirus…

A: Disease is a kind of harmful condition which disturb or impairs functioning of body part or whole…

Q: The ebola virus is ______ times larger than the rhinovirus.   A. same size   B. 10   C. 100   D.…

A: A virus is a submicroscopic organism which contains genetic information either in the form of DNA…

Q: RNA viruses require their own supply of certain enzymes because(A) host cells rapidly destroy the…

A: Viruses are defined as infectious agents that can survive only by invading the living cells. They…

Q: Students are debating about differences between viruses and cells. Which student’s argument is MOST…

A: Viruses are the connecting link between living and nonliving kingdom. So they are not regarded as…

Q: a. During which stages of an infectious disease does the host exhibit signs and symptoms? Is there a…

A: Hi! As you have posted multiple questions, I will be answering the first question for you. If you…

Q: QUESTION 6 Protein made by Gram positive or Gram negative bacteria a. endotoxin b. exotoxin QUESTION…

A: 8) cell wall of bacterias are formed of lipopolysaccharide. The endotoxin is an toxin released by…

Q: 1. Cell shape and arrangement in A? 2. Gram stain reaction in A? 3. Cell shape and arrangement in…

A: staining is the technique to view the bacterial cells in a smear of inoculum. Gram staining is the…

Q: Compare and contrast onion cell, Staphylococcus aureus, and cheek cell.

A: Both prokaryotic cells and eukaryotic cells have cytoplasm, ribosome, and a plasma membrane.…

Q: What is the significance of Pasteur’s experiment to test the germ hypothesis? a. It proved that…

A: There are some living organisms that cannot be observed by the naked eye and only can be seen under…

Q: Which of the following refer/s to viruses? A. They are disease-causing. B. They contain DNA or…

A: Introduction: Viruses are non-cellular microscopic particles that can replicate inside the living…

Q: Which of the following is not true of viruses? O A. They have a prokaryotic cell structure B. They…

A:

Q: Choose the combination of answers that most accurately completes the statement. In general, RNA…

A: Viruses are infectious agents that are non-cellular and composed of genetic material covered by a…

Q: Which is not a characteristic of Streptococcus pyogenes? a. group A streptococcus   c. sensitive to…

A: Ans: Streptococcus pyogenes: It is the gram-positive organism and is the causative agent of diseases…

Q: How does fluoroquinolone antibiotic drug treat infections? a. Blocking folic acid synthesis  b.…

A: Antibiotics, as the name suggests, are antimicrobial compounds that are either bactericidal or…

Q: How does soap kill coronavirus?  B. Why virus can not be washed off with water along?  C. Why soap…

A: Coronavirus can be prevented by practicing good hand hygiene. The best technique to eliminate…

Q: Virus spikes are commonly associated with which of the following?   a. Non enveloped viruses b.…

A: Virus have spikes protein.

Q: Antibiotic resistant bacteria are commonly found in hospitals. Why do you think that is?

A: Antibiotic resistance occurs when bacteria develop the capacity to overcome the antibiotics created…

Q: a.Explaination of  how a bacteria  must be present in all the cases of a disease.

A: Hi! As you have posted multiple questions, I will be answering the first question for you. If you…

Q: What are antiviral and antitumor agents? Why would it be significant if fluid extracted from…

A: * Antiviral agents are the drugs that used to treat or control viral infections. These agents will…

Q: Viruses are not considered to be alive because: (choose all that apply) A. They do not grow B.…

A: Option-B is correct.They cannot reproduce on their own. Viruses are considered as living as well as…

Q: A is a virus that infects a bacterial cell.

A: Lets know each of the terms:   Retrovirus : They are also viruses which uses RNA as their genetic…

Q: What is the difference in peptidoglycans in gram negative vs gram positive cells/ B. Why does Gram…

A: The bacterial cells are surrounded by a cell envelope that is a multilayered structure. The major…

Q: Which best describes conjugation in bacteria? OA. Bacteria take DNA from their environment. B.…

A: Gene transfer is the movement of genetic information between organisms. It can be horizontal or…

Q: Which of these is true of prions?a. They are small RNA viruses.b. They replicate in the nucleus.c.…

A: Prions are the infectious substances that are discovered by Stanley B. Prusiner.

Q: Why don’t scientists usually consider viruses living? A.They do not have DNA  B.They do not have…

A: The cell is the basic structural and functional unit of life. It carries out various functions in…

Q: Which is true of DNA viruses? a. They use the host cell’s machinery to produce new copies of their…

A: Virus is an entity which can resort to various forms replication types. These can have different…

Q: A. What is Pasteur’s “Germ Theory of Disease?. How did he discover this principle?  B. What major…

A: Before the acceptance of germ theory, the Miasma idea prevailed, which believed that disease was…

Q: Which bacteria release a potent exotoxin, capable of interfering with nerve/muscle communication? a.…

A: An exotoxin is a toxin secereted by bacteria into the surroundings. Bacterial toxin are classified…

Q: Which of the following diseases is NOT caused by a bacterium? Group of answer choices A) Epidemic…

A: Bacterial disease refers to any of a variety of diseases caused by bacteria.

Q: an agent that is bacteriostatic

A: A bacteriostatic agent is a chemical/biological agent that inhibits or stops bacteria from…

Q: 24) The infectious bursal disease virus strain D78 is a : a. Genus name b. Species name C. Order…

A: The infectious bursal disease virus strain D78 is ?

Q: acteriophage is a (A) Fungus (B) Bacteria (C) Virus (D) Protozoa

A: Bacteriophages are composed of proteins that encapsulate a deoxyribonucleic acid or ribonucleic acid…

Q: Bacteriophages kill their host quickly by____ . a. binary fission c. a lysogenic pathway b. a lytic…

A: Bacteriophages are viruses that use bacterial cells as hosts.

Q: As a scientist, you need to develop an antiviral drug that will affect the attachment of…

A: The T phages are infectious phages  that is capable of infecting Escherichia coli. They are lytic…

Q: Please refer to the passage to help you answer this problem. Which of these characteristics is NOT…

A: Viruses- they are agent with small size and simple composition that can multiply only in living…

Q: Short Answer Question: List two ways in which causing disease to humans could benefit a bacterial…

A: introduction:- Bacteria are microscopic organisms some of them can be infectious, that can make one…

Q: Which of the following does NOT inititiate DNA synthesis ? (correct answer e) a. a single-stranded…

A: Deoxy ribo nucleic acid (DNA) is the genetic material of most organisms and it contains coded…

Q: Which of the following does NOT inititiate DNA synthesis?   a. a single-stranded DNA virus.  b. a…

A: The viruses can be classified into 3 classes based on the type of genetic material they carry. They…

Q: Drugs that target ergosterols or glucans are for treatment of infections from organisms representing…

A: Ergosterol or glucans,chemical composition is  5,7-diene oxysterol. It is found in the cell membrane…

Q: Select a statement that is not correct about bacterial fimbriae?   A. they protect the cell from…

A: In bacteriology, a fimbria is a type of appendage that is found on many Gram-negative and some…

Q: Which group of bacteria contains the gram-positive, anaerobic bacterium that causes botulism? (a)…

A: Introduction :- Bacteria having thick cell walls are known as Gram-positive bacteria. These…

Q: Make a comparison and contrast between Pseudomonas and Escherichia coli. Explain.

A: Bacteria are organisms that are found almost everywhere on earth and are free-living cells that are…