Why did liposomes not work against diseases as hoped when they were first tried?   options:   They were degraded in the bloodstream   Immune system phagocytes removed them from the bloodstream before they could exert an effect   They leaked before getting to their target   They were targeted incorrectly   They expanded osmotically and lysed before reaching their target.

Q: Phagocytes are most effective against intracellular viruses. Phagocytes are equally effective…

A: Phagocytosis is a process of killing pathogens by using WBC'S. Some organs have there specific…

Q: the three type of cells in thymus are macrophages, thymocytes, epithelial reticular cells…

A: Thymus - It is an endocrine gland located behind the sternum in between the lungs. This gland grows…

Q: What process does NOT occur In trauma-induced breakdown of protective cell barriers in the gut?…

A: Answer :- Option (C) is correct. -Direct damage doesn't occur in trauma-induced breakdown of…

Q: For each statement, indicate whether energy is or is not required. Phagocytosis Proton pump 1.…

A:

Q: Which of the following cell functions in the immune response in the skin?     Merkel cell…

A: Skin is a protective envelope around the body and is a part of integumentary system. It comprises of…

Q: Which of these innate defenses would be most inhibited by antibiotic use? Group of answer choices…

A: Innate immunity is the one that is present since birth. It helps in protection against all antigens.

Q: Chemicals released to complete extracellular killing include __________. (Select all that apply)…

A: Our immune system act differently in case of intracellular and extracellular infections. Different…

Q: Match the molecules below with their functions: Membrane attack complex (MAC) Interferons…

A: Membrane attack complex (MAC) - MAC is a type of structure which is formed on the surface of the…

Q: Which of the following cells is not phagocytic? Monocyte Dendritic cells Macrophage Chondrocyte

A: Phagocytic cells are a type of white blood cell that use phagocytosis to engulf bacteria, foreign…

Q: What is not true regarding drug delivery uptake? Most nanoparticles enter cells through endocytosis…

A: The foreign body response is a type of inflammatory response that occurs when the body's immune…

Q: Explain your understanding of the immune system and phagocytosis (including the different stages).

A: In this condition olajumoke is suffering with painful condition where she is facing pain and grief…

Q: How many types of “foreign molecules” (use the proper term where needed) does each cell recognize?…

A: Antigens can be classified according to their source: Antigens from outside the body Exogenous…

Q: Which of the following molecules has the most pro-inflammatory activity? TXA2 swer PGE2 ered PGI2

A: Prostaglandins are synthesized from arachidonic acid. Prostaglandin I2 (PGI2) or prostacyclin has…

Q: Which of these best describes NOD-like receptors? Most are found on the plasma membrane where they…

A: Nucleotide-binding and oligomerization domain (NOD)-like receptors  are pattern-recognition…

Q: In a study, melanoma patients who developed vitiligo, lived longer than those who did not. The…

A: Melanoma It is defined as the type of skin cancer in which melanocytes are affected and cause…

Q: Many microbial pathogens enter the gut of humans along with food. What are the preventive barriers…

A: There are many microbes which act as pathogen infect the food these pathogens easily enters our gut…

Q: the immune response is strongest there in all infections cells there are exposed to stomach acid and…

A: Immune tolerance is a state of unresponsiveness of the immune system to substances  that have the…

Q: When antibody marks an invader so the macrophages can find it more easily to efficiently destroy the…

A: The ability of the body to fight against pathogens is called immunity.. T lymphocytes provide…

Q: Which is NOT a role of sebum in the innate immune system. Group of answer choices dehydrates…

A: Sebaceous glands are present on the skin. The glands are mostly present on the chin, forehead and…

Q: Which of the following phenomena result in the observed reaction many people have to penicillin?…

A: Penicillin is a type of antibiotic that is used to treat a variety of bacterial infections. However,…

Q: he name of the waxy chemical found in Mycobacterium cell walls that promotes immunevasion?

A: Neither absolutely gram-negative nor gram-positive, the envelope of mycobacteria  is planned to…

Q: What is the effect of pertussis toxin on G proteins?     Inhibits activation of Gαi leading to…

A: The GPCR (G-protein coupled receptor) is one of the very important cell signalling molecule. It is a…

Q: immunity is characterized by the activation of T-cells that can attack and destroy the invaders…

A: Since they are necessary for practically all adaptive immune responses, helper T cells are probably…

Q: Which of the following is a result of activation of the compliment?

A: The term compliment applies to a part of the innate immune system means the action of the compliment…

Q: suppose than individual's arm is cut, and because of this injury, bacteria are able to gain entry to…

A: When it comes to protecting the body then immune system is the system that acts as defense mechanism…

Q: Hyaluronidase and collagenase both allow bacteria to _____. View Available Hint(s) for Part A…

A: Answer

Q: A bacterial cell has been tagged by antibodies and is destined to undergo phagocytosis. Discuss the…

A: The bacterial cell is coated with IgG (immunoglobulin G) that binds to the opsonin receptors. The…

Q: _, concentration gradients of microbial substances and inflammatory In the process called mediators…

A: Diapedesis and inflammation are processes that are studied under the domain of immunology.…

Q: Stomach acid has a pH of approximately 1 which is very strong. This kills most microbes that reach…

A: Answer : Chemical is the right option.this is the chemical line of defence.   Mechanical digestion…

Q: Match the barrier with its type Physical barrier Chemical barrier Mechanical barrier Microbiological…

A: The human body is constantly exposed to potentially harmful microorganisms. In order to protect…

Q: If C3b was prevented to bind to C5 convertase, would the complement system still illicit an immune…

A: The immune system is responsible for the protection against the pathogens. The white blood cells or…

Q: Pathogen -Splinter Chemical Macrophage signals Fluid Mast cell Capillary Phagocytosis Red blood…

A: Answer

Q: Before you can start your clinical rotation, you are required to get a tuberculosis (TB) test. The…

A: This is an example of a delayed-type hypersensitivity (DTH) reaction.Here's a breakdown of…

Q: Which of the following is LEAST likely to be critical for maintaining tolerance to gut microbiota?…

A: Gut microbiota are the microorganisms, including microscopic organisms and archaea, that live in the…