Exchange With the Envoronment 0.0 / 5 ? BiologyExchange With the EnvironmentASAQA Created by: Luna HufflepuffCreated on: 19-05-17 11:48 What type of exchange system is found in fish? A counter-current exchange system 1 of 30 What does a counter-current exchange system maintain? The concentration gradient. 2 of 30 What are the gills in fish formed of? Gill filaments and lamella 3 of 30 What are the three factors in Fick's Law? Surface area, Diffusion distance and concentration gradient 4 of 30 What is the name of the organ which monitors gas and water exchange in insects? Spiracle 5 of 30 An example of a Xerophyte is...? A cactus 6 of 30 What is the name of the cell which monitors gas and water exchange in plants? Stomata 7 of 30 What is the name of the cell which opens and closes the stomata? Guard Cell 8 of 30 Through which vessel does water move up a plant? Xylem 9 of 30 Why do water molecules stick together? Cohesion Tension 10 of 30 What three adaptations in xerophytes maintain humid air around the stomata? Sunken stomata, stomatal hairs and rolled leaves 11 of 30 What two adaptations in plants prevent/reduce water loss? Stomata and the waxy cuticle 12 of 30 What two adaptations in insects prevent/reduce water loss? Waterproof coating and spiracles 13 of 30 What is the equation for calculating the rate of diffusion? surface area X concentration gradient / diffusion distance 14 of 30 What are the two types of digestion? Mechanical and Chemical digestion 15 of 30 By which process is food moved down the oesophagus? Peristalsis 16 of 30 Where does mechanical digestion occur? In the mouth 17 of 30 What do the chemicals in the stomach do? Kill any bacteria 18 of 30 What enzymes does the pancreas secrete? Amylase, Maltase and Lipase 19 of 30 What does Amylase break down? Starch 20 of 30 What does Maltase break down? Maltose 21 of 30 What does Lipase break down? Lipids 22 of 30 How many haem groups does haemoglobin contain? Four 23 of 30 What inorganic ion gives haemoglobin its oxygen carrying properties? Iron 24 of 30 What type of protein is haemoglobin? A globular protein 25 of 30 What do oxygen dissociation graphs show? The saturation of haemoglobin 26 of 30 What is the equation to calculate cardiac output? Stroke Volume X Heart Rate 27 of 30 Which blood vessels carries the highest pressure of blood? The Arteries 28 of 30 Which blood vessels are only one cell thick? The capillaries 29 of 30 What are the other names for tissue fluid? Blood plasma and Lymph 30 of 30
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