B2 - Keeping Healthy 0.0 / 5 ? BiologyHealthy livingGCSEOCR Created by: cjulie11Created on: 26-04-16 13:25 organisms that cause infectious diseases include... bacteria and viruses 1 of 24 why do michroorganisms reproduce so rapidly in the human body? to produce large numbers as quickly as possible 2 of 24 why do cells get damaged during an infection? because the microorganisms produce toxins 3 of 24 what do white blood cells do? *destroy microorganisms by engulfing and digesting them *produce antibodies against antigens on their surface 4 of 24 why do memory cells remain in the body? so that antibodies can be produced much quicker and to develop animmunity 5 of 24 what does a vaccine do? contains a safe dose of a microorganism 6 of 24 why do vaccines have a dose of a microorganism? because it allows the person to develop an immunity and has quite a low risk 7 of 24 why should a large proportion of a population be vaccinated? because otherwise there would be an epidemic of people who were infected and it would be passed back and forth extremely easily 8 of 24 what do antimicrobials do? *kill or inhibit the growth of bacteria, fungis and viruses *include antibiotics which are used to kill bacteria 9 of 24 why should antibiotics only be used when necessary and why should you insure a course is completed? because bacteria and fungi can develop a resistance 10 of 24 what does 'open label' mean? a new drug is known by the researcher and the patient 11 of 24 what does 'blind' mean? the patients don't know who will be receiving the drug 12 of 24 what does 'double blind'mean? the researcher and patient don't know who is receiving the drug 13 of 24 which side of the heart pumps to the lungs and which side to the body? *left side pumps to the body *right side to the body 14 of 24 why do heart attacks occur? because fatty deposits block the blood supply to the heart 15 of 24 what causes heart disease? *lifestyle factors - poor diet, stress, smoking, misuse of drugs *genetic factors 16 of 24 blood pressure is... a measure of the pressure of blood on the artery wall 17 of 24 how is blood pressure measured? it is measured astwo numbers; the higher number is when the heart is contracting the other is when the heart is relaxed 18 of 24 heart rate is recorded... using the pulse beats per minute 19 of 24 does high blood pressure increase or decrease the risk of heart disease? it increases the risk of heart disease 20 of 24 name a substance that *increases ADH secration *decreases ADH secration? *ecstacy (MDMA) increases ADH secration *alcohol decreases ADH secration 21 of 24 in what ways is water inputed into the body? from drinks, food and respiration 22 of 24 how is water lost? from sweating, breathing, faeces and urine 23 of 24 how do the kidneys respond to water concentration? they respond to water concentration in the plasma by producing dilute or concentrated urine 24 of 24
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