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25 Cards in this Set
- Front
- Back
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Write a word equation that could represent aerobic respiration and combustion?
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fuel + oxygen ------> carbondioxide + water
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name two forms in which energy can be realsed during the burning of coal?
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1. heat
2. Light |
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name the molecule in which energy is realsed by respiration is stored so that it can be used for living cell?
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ATP
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name the chemical process that is common to both aerobic respiration and burning?
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oxidation
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describe how the circulatory system is involved in the respuration process?
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- blood is the transport medium, it carries glucose to a respiry cell.
- the heart pumps blood around the body. - air breath into the lung contain oxygen. -oxygen diffuses drom the alevoli into the blood. -red blood cells carries oxygen to respiring cells. |
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what is the function of the right atrium?
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- recieves blood
- pumps blood into the ventricle |
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Explain how the brain can cause a change in heart rate, and consequently blood pressure during exercise?
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- cardiovascular centre involved
- accelerator centre involved - more impulse -along accelerator nerve |
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what is the normal value of the breathing rate for a 17 year old female?
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15-18 breaths min-1
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what is the normal value of the tidal volume for a 17 year old female?
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0.4-0.5 dm3
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what is the normal value of the vital capacity for a 17 year old female?
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4.25 dm3
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name a recreational drug?
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Nictoine
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name a performance- enhancing drug?
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Caffine
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describe how blood sample could be used to detect the pressure of a drug in an athelete?
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- divid in two-- keep one sample
- analyse or test one sample |
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how does a peak flow work?
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- sit or stand in a comfortable, upright position.
- make sure the pointer is at zero. - hold the peak flow meter level horizontally - take a deep breath and close your lips firmly around the mouth piece. |
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- blow as hard as you can
- take the reading reset the pointer to zero - repeat to give three values recording the highest reading |
expalin why it is important that the flow meter is held Horizontally?
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to avoid gravity affecting reading
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explain why it is advisable to take 3 readings?
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- to ensure the highest reading
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Name one equipment used to monitor blood pressure?
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Sphygmomanometer
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explain the basic prinicple of medical x-ray radiography?
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- xray/ radition through to fil.
- radition produces an image on the film - bone material absorb radition - soft tissue abosorbd less |
- different tissue absorb different amount of x-rays.
-Bones gives better resolution |
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discuss the benefits and ethical issur of x-ray to dignose a 90 year old?
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- age and surival rate
- cost effectiveness - availability of imaging equipment -Need for pain mangement |
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- support without treatment
- would patient be able to cooperate during imaging. |
Hazards, Risk and safety precautions of CAT scanners?
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Hazards:
high levels of radition |
Risk:
DNA damage |
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Safety precaution:
Wear badge to register radiation |
Hazards, Risk and safety precautions of MRI scan?
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Hazards:
Noise |
Risk:
Deafness |
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Safety precaution:
Ear plugs |
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