GCSE biology test one: 11/11/16 0.0 / 5 ? BiologyCirculation and photosymphasisGCSEWJEC Created by: Mathilde.HickmanCreated on: 06-11-16 15:22 What type of circulation system do humans have? Double circulatory system 1 of 31 How many chambers does the human hart have? four 2 of 31 What are white blood cells used for? defence against desieses 3 of 31 What are red blood cells used for? taking oxygenated blood around the body 4 of 31 What to platelettes do? accumulate at a wound and clot the blood 5 of 31 What is plasma and what does it do? The watery part of blood - carrys amino acids, hormones, glucose, carbon dioxide, and salts 6 of 31 What do arteries do? take blood away from the hart at high pressure 7 of 31 What do vains do? take blood back to hart 8 of 31 What are statins? medication that lowers blood colestoral 9 of 31 What is angioplasty? a stent put into an artery using key hole surgery to prevent blood clots 10 of 31 How does blood leave the lungs and where is it take to? blood leavesthe lungs through the pulminary vain and is taken to the hart (left atrium) 11 of 31 How does oxygenated blood leave the hart? left ventrical contracts pushing blood out the hart through the aorta 12 of 31 How does un-oxygenated blood return to the hart and where does it go? un-oxygenated blood returns to the hart through the vina carva and goes to the right atrium 13 of 31 How is blood re-oxygenated? blood leaves hart and returns to the lungs where it is re-oxygenated 14 of 31 What is the word & chemical equasion for photosymphasis? carbon dioxide + water = glucose + oxygen (C6H1206) 15 of 31 What are the limiting factors of photosymphasis? sunlight,rainfal,CO2,temperature 16 of 31 What are red blood cells also known as? bioconcave disks 17 of 31 What is the red pigment in red blood cells called? haemoglobin 18 of 31 When haemoglobin picks up oxygen it becomes? oxy-haemoglobin 19 of 31 Why dont red blood cells have a neucleus? so they can have more haemoglobin and carry more oxygen 20 of 31 What is pulminary circulation blood traveling from the hart to the lungs 21 of 31 What is systematic circulation? blood traveling from the hart to the rest of the body 22 of 31 What are phagocytes and what do they do? types of white blood cells, they engulf pathogins and send out anti bodys 23 of 31 What do coronary arteries do? They take oxygen to the hart 24 of 31 What happens if theres a colestoral build up the coronary arteries? blood flow is restrected which could cause a hart attack 25 of 31 What is the structure of arteries like? 1) small lumin 2) thick muscular wall 26 of 31 What is the structure of vains like? 1) large lumin 2) thin muscular wall 27 of 31 Why do vains have valves? to prevent blood flowing in the wrong direction 28 of 31 What is glucose used for? 1) stored as starch for future use 2) respiration 3) used to make cellulose 4) converted into oils and stored in seeds 5) make protines 29 of 31 Why is glucose in plants stored as starch? to prevent it leaving the plant via diffusion (starch is too thick to get through the cell wall) 30 of 31 What do plants need to produce protines? Glucose (starch) and nitrogen (nitrates) 31 of 31
Comments
No comments have yet been made