Biology
What is the correct cycle for transmission of malaria
Infected mosquito bites human; Plasmodia in mosquito saliva invade liver where they multiply and infect blood; Another mosquito bites infected human and pick up plasmodia in blood; Reproduce in mosquito's intestine; Mosquito infects more humans
Another mosquito bites the infected person and picks up plasmodia in blood; Infected mosquito bites human; Reproduce in mosquito's intestines; Mosquito infects more humans; Plasmodia in mosquito's saliva invades liver where they multiply and infect blood
Reproduce in mosquito's intestine; Infected moquito bites human; Another mosquito bites infected person and picks up plasmodia in blood; Plasmodia in mosquito's saliva invade liver where they mutliply and infect blood; Reproduce in mosquito's intestine
Infected mosquito bites human; Infects more individuals; Reproduce in the mosquito's intestine; Another mosquito bites infected person and picks up plasmodia in blood; Plasmodia invade liver where they multiply and infect blood; Plasmodia in mosquito's saliva
Select all the symptoms that malaria can cause:
Headache
Coma
Fever
Generalised Convulsions
Shivering
Repeated Vomiting
Severe Aneamia
Pain in joints
Rashes
Constipation
Diarrhea
Seizures
Paralysis
Severe weightloss
Coughing up blood
Which one is the correct process of phagocytic action
Detection; Ingestion; Phagosome forms; Fusion with lysosome; Digestion; and Discharge
Digestion; Ingestion; Fusion with lysosome; Detection; Discharge; and Phagosome forms
Phagosome forms; Fusion with lysosome; Detection; Ingestion; Discharge; and Digestion
Detection; Ingestion; Fusion with lysosome; Phagosome forms; Digestion; and Discharge
What are the symptoms of inflammation
Pain
Redness
Heat
Swelling
Vomiting
Headaches
Pain in joints
Fatigue
Select the benefits of a fever
Intensifies effect of interferons
Increases production of T-cells
Speeds up metabolic reactions
Increases heart rate, delivering WBC to infection faster
Kills infected cells
Increases production of WBC's
Slows down pathogens
Intensifies effect of B-cells
If you are innoculated, in terms of vaccinaton, you:
Have recieved a vaccination
Have not recieved a vaccination
Have fallen ill after recieving a vaccination
Have not recieved a vaccination and have fallen ill
What causes a fever
Release of interleukin-1 which induces hypothalamus to increase production of prostaglandis which resets body's thermostat to a higher temp
Macrophage releases prostaglandis which stimulates hypothalamus to create interleukin-1 and raises body temp
Interleukin-1 in released and stimulates the hypothalamus to create more phagocytes which raises the body's temperature, prostaglandis brings down the body temp
Prostaglandis produces interleukin-1 and causes body temperature to rise, stimulating hypothalamus to create more phagocytes in order to reset body temperature
The hummoral immune system is:
Associated with the production of B-cells which produce antibodies
Associated with the prodcution of specialized lymphocytes called T-cells
Development of immunity after exposure to pathogens
The system that produces hormones
The cell-mediated immune system is:
Associated with the production of specialised lymphocytes called T-cells
Associated with B-cells which produce antibodies
A procedure that provides atrificially acquired immunity
Associated with the production of proteins made in response to antigens
The following statement can be used to describe what kind of lymphocyte? "When these cells encounter the same antigen again, they rapidly differentiate into antibody producing plasma cells."
Plasma B-Cells
Memory B-Cells
Helper T-Cells
Killer T-Cells
The following statement can be used to describe what kind of lyphocyte? "These cells secrete antibodies, producing 2000 antibody molecules per second in their short life span of just a few days."
Plasma B-Cells
Memory B-Cells
Helper T-Cells
Killer T-Cells
What is a helper T-Cell?
A lymphocyte that activates cytotoxic T-Cells (Killer T-Cells) and is necessary for B-Cell activation
Lymphocyte that rapidly produces antibodies in order to kill off pathogens
A cell associated with the non-cellular part of the blood
Proteins that activate other cells and attach to infected cells
Select the following statements that are CORRECT:
Suppressor T-Cells regulate the immune response
T-Cells for delayed hypersensitivity cause inflammation in allergic reactions and reject tissue transplants
Cytotoxic (killer) T-Cells destroy targeted cells on contact
Killer T-Cells do not need assistance in multiplying themselves
T-Cells easily fight off the HIV/AIDS virus
Helper T-Cells attach to antigens and kill the infected cell
What is an antigen?
A foreign substance used by the killer T-cells to identitfy infected cells
A cell that englufs and destroys pathogens
A protein made in response to antibodies
A type of B-cell
What is a Recombiant Vaccine?
A vaccine that contains other microbes that have been genetically altered to make a desried antigenic fraction
A bacterial toxin that has been inactivated by heat or chemicals
Poorly antigenic pilysaccharides combined with proteins such as toxiods
Fragments of whole-agent vaccines containing only desired antigens
What is: "a vaccine that consists of fragments of whole-agent vaccines containing only the desired antigens"?
Recombiant Vaccine
Acellular Vaccine
Conjugated Vaccine
Toxiods
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