S2 body systems test
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What name is given to cells of similar size and shape that are grouped together to do a common job? | A tissue
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| What is the smallest unit of every living organism? | A cell
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| What do tissues make up? | An organ
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| What are organs performing related functions organized into? | An organ system
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| What is the function of the respiratory system? | Takes in oxygen and gets rid of carbon dioxide
(gas exchange).
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| What is the function of the cardiovascular system? | Pumps blood around body for tissues to
receive oxygen for respiration.
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| What is the name of a tube by which food passes down after swallowing? | gullet (oesophagus)
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| What is the name of the part of digestive system where water is absorbed into the body? | large intestine
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| What is the gas given out on exhaling? | Carbon dioxide
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| What chemical changes from colourless to cloudy in presence of carbon dioxide? | lime water
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| What test measures the maximum air that can be forced out of the lungs in one breath? | peak flow reading
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| What is the function of valves in the cardiovascular system? | To ensure that blood flows in one direction only (prevents backflow).
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| What is the name of the smaller chambers of the heart? | Atrium
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| What is the name of the larger chamber of the heart? | Ventricle
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| What are the three types of blood vessels? | Veins, arteries and capillaries.
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| What test measures the maximum volume of air we can breathe out after we have taken a deep breath in? | vital capacity
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| What is the function of the digestive system? | Breaks down food to give the body energy.
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| Which type of blood vessel has valves? | A vein
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| Which type of blood vessel has a wall one cell thick? | A capillary
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| What is normal reading for human blood pressure? | 120/70 mmHG
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| What gas do we inhale? | Oxygen
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| What gas do plants take in? | Plants take in carbon dioxide
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| What gas do plants give out? | Plants give out oxygen
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| What name is given to the organ system involving the brain? | nervous system
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| What part of the digestive system absorbs food into the blood? | small intestine
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| What colour change would indicate that starch was present when iodine is added? | brown to blue/black
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| What name is given to structures in the heart that keep blood flowing in one direction? | valves
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| Where does fertilisation occur in the reproductive system? | oviduct
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| Which cells found in the human body contain half the DNA of normal cells?: | sperm and egg cells
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| What DNA base combines with base A? | base T
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| Different forms (varsions) of the same gene are termed? | alleles
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| What are the small units that carbohydrates are made up of called? | simple sugars
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| What are the small units that proteins are made up of called? | amino acids
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| Whch food group is made up of glycerol and fatty acids? | fats
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| How would you test for the presence of carbon dioxide in breathed out air? | Use a straw and some lime water. If carbon dioxide is present it should turn from colourless to cloudy
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| What is the relationship between the level of exercise and breathing rate? | As the level of exercise increases so does the breathing rate
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| What is DNA profiling? | DNA profiling is a way of identifying an individual using unique markers in their DNA base sequence
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| What are uses of DNA profiling? | Forensic science and paternity testing
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| What are advantages of DNA profiling? | It is painless, quick, inexpensive and confirms identity with certainty.
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| What are disadvantages of DNA profiling? | Tests need to be repeated at least twice to avoid false results and also there are privacy concerns if DNA is stored.
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