Which of these best demonstrates mutualism between certain types of bacteria and humans? O Bacteria in improperly prepared food is consumed by humans, causing food poisoning. O Intestinal bacteria obtain nutrients from the gut and produce vitamin K used by humans. O Bacteria become resistant to antibacterial medication that humans use for treatment. O Invasive bacteria at an area of injury produce toxins that damage healthy tissues of the human body.

Q: Consider that a certain antimicrobial drug prevents bacterial growth. However, when the drug…

A: ANTIMICROBIAL DRUGS:- These are those chemicals which inhibits or kills the growth of variety of…

Q: The following microbes are NOT made of cells, O Escherichia coli Candida albicans Taenia solium…

A: The microorganisms that are not visible to the naked eyes and are present freely in the water, air…

Q: Mucous membranes are quite thin and fragile. How can such delicate tissue provide defense against…

A: Answer. Mucous membranes are quite thin and fragile. The mucus physically traps microbes, contains a…

Q: How would you argue against this statement: "To help prevent any type of bacterial infection all…

A: I do not agree with this statement.  From an immunology perspective, wiping all the bacteria from…

Q: Which of the following are more resistant to antibiotics? Gram-positive bacteria Gram-negative…

A: Thermophilic bacteria, including hydrothermal vents in the ocean and hot springs, flourish in some…

Q: 1.  Identify a FALSE  statement from the following, Group of answer choices peptidoglycan in Gram…

A: Bacteria are organisms that are microscopic, unicellular, and prokaryotic in nature. They are…

Q: What type of antimicrobial/antibiotic is completely synthesized in a laboratory? O Synthetic O…

A: Antibiotics are a large chemical class of therapeutics that are produced naturally or synthetically.…

Q: As the immune system increases fluids in a tissue resultng in swelling and increased mucus…

A: The immune system protects our bodies from intruders including viruses, bacteria, and foreign…

Q: Which of the following is not a barrier to pathogen entry?a. oil gland secretions of the skinb.…

A: Pathogens are foreign substances that enter our bodies. They are responsible for causing diseases.…

Q: The insecticidal compound BtK is a bacterium or bacterial product is an acronym of Bacillus…

A: Answer :-  crosses peritrophic membrane of midgut and binds receptors.

Q: Eggs are most likely to be contaminated by: E. Coli. O EE Cummings Salmonella Botulism

A: Bacterias are carried along with the live poultry which are capable of contaminating the eggs from…

Q: Helicobacter pylori is able to use urease to neutralize the stomach environment because the enzyme…

A: These are microbial urease found in stomach.  As ureases they catalyze urea to produce ammonia and…

Q: Which of these statements about bacteria are true? All of these are true Some of can breath metals…

A: The objective of the question is to verify the truthfulness of the given statements about bacteria.

Q: It took a temperature of 135 degrees Celsius to kill all of the bacteria in a test tube in 10…

A: As more and more microbes were discovered and identified to be the cause of various infections or…

Q: Tetracyclines and aminoglycosides are drugs that affect what aspect of the bacterial cell? Cell…

A: Tetracyclines primarily target the bacterial protein synthesis process. They inhibit protein…

Q: Exotoxins

A: Exotoxins can be the following EXCEPT: they are LPS/lipopolysacharride Correct option: 1st Reason:…

Q: Many pathogenic bacteria are unable to make some of the metabolic compounds needed for growth and…

A: Bacteria are simple living unicellular organisms that have a cellular level of organization. They…

Q: Students sometimes react with horror and distress when they discoverthat cats and dogs carry…

A: Zoonotic diseases are infectious diseases that are transmitted to humans (hosts) from animals…

Q: Explain how some bacterial cells may be just as dangerouswhen they are dead as when they are alive.

A: Bacteria are very small living beings that can not be seen by naked eyes. A few living groups can…

Q: Bacterium A Indole H2S Production Motility Bacterium B Appearance of Positive Result Result from…

A: Indole Test: The indole test is a biochemical procedure used to assess a bacterial species' capacity…

Q: If a "swarmer" Caulobacter bacterium wants to reproduce, it needs to first ... O find a suitable…

A: To understand the reproductive process of the "swarmer" Caulobacter bacterium.

Q: A patient suffers from conjunctivitis due to E. coli moving from the colon to the eye. What type of…

A: Immune system is system which helps our body to fight against the foreign substances which will…

Q: Carbapenems are and can be destroyed by O broad spectrum antibiotics similar to tetracycline;…

A: Carbapenems :- Are a class of highly effective antibiotics agents  commonly used for the treatment…

Q: Which of the following does NOT describe a mechanism of antibiotic resistance among bacteria?…

A: Bacteria is a prokaryotic organisms which causes different types of diseases in humans and other…

Q: Whi discovered an antibiotic when returning from vacation in Scotland and found his bacterial…

A: Antimicrobial agents working against bacteria are antibiotics. Antibiotics are the most effective…

Q: You contract an infection from an unknown pathogenic organism. Your doctor conducts a biochemical…

A: Given:  The person contracts an infection from an unknown pathogenic organism. The doctor conducts a…