Question

a.) What is a biofilm? b.) Is implant sterilization sufficient to prevent bacterial infection following implantation?...

a.) What is a biofilm?

b.) Is implant sterilization sufficient to prevent bacterial infection following

implantation? Why or why not?

c.) Why are antibiotics useless when an implant is covered by a biofilm?

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

a. A biofilm comprises any syntrophic consortium of microorganisms in which cells stick to each other and often also to a surface. These adherent cells become embedded within a slimy extracellular matrix that is composed of extracellular polymeric substances.

b. No as many bacteria re normally present in and around the body which can be transformed into virulent strands on exposure to certain chemicals or materials.

c. In biofilms, poor antibiotic penetration, nutrient limitation and slow growth, adaptive stress responses, and formation of persister cells are the factors that contribute to antibiotic resistance.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
When a eukaryotic organism (such as a human) gets a bacterial infection, it can be treated...
When a eukaryotic organism (such as a human) gets a bacterial infection, it can be treated with antibiotics. Antibiotics work by targeting prokaryotic cells without targeting eukaryotic cells. This is possible due to molecular differences between the two cell types that enable specific targeting of molecules in prokaryotic cells but not eukaryotic ones. The effects of different categories of antibiotics are listed below. For each one, explain how this would affect prokaryotic cells and why. Some antibiotics disable ribosome function....
Which of the following classes of antibiotics would be effective in treating a Gram-positive bacterial infection...
Which of the following classes of antibiotics would be effective in treating a Gram-positive bacterial infection in an immunocompromised patient? Select all that apply. There may be more than 1: A. Antimetabolites that block biosynthetic pathways. B. Ribosome inhibitors that interfere with peptide bond formation. C. Cell wall inhibitors D. Ribosome inhibitors that interfere with the binding of an incoming tRNA with the mRNA. E. Ribosome inhibitors that interfere with elongation, causing misreading.
1. Memory B cells Prevent initial infection Can be generated from immunization (vaccines) Kills infected host...
1. Memory B cells Prevent initial infection Can be generated from immunization (vaccines) Kills infected host cells Undergo apoptosis soon after infection subside 2. Which of the following would be able to recognize the pathogenic bacterium E. coli strain H 10407 when it infects the body? Phagocytes B cells T cells All of the above 3. A zygote is formed Just prior to fertilization When more than one sperm fertilizes the same egg Within the ectoderm of a blastula When...
A client has developed urosepsis following a urinary tract infection. The nurse is explaining how B...
A client has developed urosepsis following a urinary tract infection. The nurse is explaining how B cells are programmed to identify specific proteins or antigens in the fight against the client's infection. What process is the nurse describing? a. T-cell immunity b. Autoimmunity c. Passive immunity d. Humoral immunity
Which of the following is a case of a health care-acquired infection? a.             A patient...
Which of the following is a case of a health care-acquired infection? a.             A patient with an eye infection admitted for surgery this morning b. An infected wound on a patient who was admitted from a nursing home today c. A patient tested as human immunodeficiency virus (HIV) positive d. A urinary tract infection that develops after the nurse has inserted a urinary catheter The nurse is knows that which of the following is correct with respect to routine...
Question 1: a) what experimental design approaches are used to prevent pseudoreplication. b) If, after the...
Question 1: a) what experimental design approaches are used to prevent pseudoreplication. b) If, after the research is completed, the researcher obtains a p-value of 0.06 What does this p- value signify? What should they do? Is there a way to salvage this experiment? c) What does it mean when we say that a result is ‘statistically significant’? please explain it briefly
14).  Human embryonic implantation occurs at which of the following stages?      a). gastrula, b). zygote, c). neurula,...
14).  Human embryonic implantation occurs at which of the following stages?      a). gastrula, b). zygote, c). neurula, d). blastocyst, e). morula 15).  A BMI of 28 indicates        a). obesity, b). overweight, c). normal weight, d). underweight, e). extreme obesity 16). An example of hypothyroidism is        a). cretinism,  b). Addison’s disease, c). celiac disease, d). Graves’ disease, e). acromegaly 17). An example of PICA is          a). bulimia, b). plumbism, c). celiac disease, d). lactose intolerance, e). phocomelia 18). About what percent of your daily...
In what ways that the nutrients and phytochemicals with antioxidant activity minimize damage and prevent disease...
In what ways that the nutrients and phytochemicals with antioxidant activity minimize damage and prevent disease ? Why is the role of vitamin E in our daily life? What will happen if we have deficiency of vitamin E. Water is an essential nutrient, more important to life than any of the others. What role does water play in the body? 1.True of False: Of all the body’s cells, the heart cells are the most versatile and metabolically active.                                                     (    )...
1. What is the role of macrophage? Select one: a. Start T cell production b. Clean...
1. What is the role of macrophage? Select one: a. Start T cell production b. Clean up foreigner invaders in our body c. Responds to parasite 2. Why is the lymphatic system a strong component in our immune system? Select one: a. Helps mature T cells for our immune system b. Helps produce mast cells to infection c. Helps produce an immune response to infection 3.What do mast cells do in the inflammation process? Select one: a. Cause bacteria to...
1. Symptoms of asthma include all of the following except A. coughing B. wheezing C. sneezing...
1. Symptoms of asthma include all of the following except A. coughing B. wheezing C. sneezing D. shortness of breath E. chest tightness 2._____may serve as a trigger for an asthma attack. A. Warm, moist air B. Fragrance-free products C. Crying or laughing D. All of the above 3.Treatment of COPD involves the administration of A. bronchodilators B. glucocorticosteroids C. antibiotics when infections are present D. oxygen E. All of the above 4. Which of the following drugs is not...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT