WebKick-start your revision with our 2-day Biology GCSE Easter revision courses for AQA and Edexcel IGCSE. Book now for online or face-to-face in London. Paper 1. Topic 1: Cell Biology. Topic 2: Organisation. Topic 3: Infection and Response. Topic 4: … WebWhat is blood? Blood is a specialized body fluid. ( It has four main components: plasma, red blood cells, white blood cells, and platelets.) it has many different functions like transporting oxygen and nutrients to the lungs and tissues, as well has heat around the body. Here are a set of revision cards on the blood and the blood vessels.
The Heart Questions and Revision MME
WebThe rate of blood flow can be calculated if the volume of blood flow and the time is known. For example; if 2460 ml of blood flows through a blood vessel in 4 minutes, the rate of blood flow = volume of blood / number of minutes = 2460 / 4 = 615 ml/minute. From this you may be asked to determine how much blood flows through the same vessel in ... WebNov 21, 2024 · Ever wondered what your blood is made of? Red blood cells, white blood, platelets and plasma! Learn what each of these components does and how we can replace... free short movies youtube westerns
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WebFibrin strands form a net that entraps more platelets and other blood cells (red cells and white cells), producing a clot that plugs the break. Prevent excessive blood loss from the body when there is a damage of the blood vessel. Maintain the blood pressure. Prevent the entry of microorganism and foreign particles into the body. Promote wound ... WebThe cell cycle is a set of steps that take place in cell division. The cell cycle is how cells duplicate and divide. Cells need to divide all the time to replace dead cells, for growth and for repair. The length of the cell cycle can vary. The length of the cell cycle varies between organisms, and depends on the type of cell. WebThe heart, blood vessels, blood. Artery structure. Thick muscle wall with elastic tissue, small lumen (central cavity) thin lumen lining. Vein. Veins carry blood from the organs back to the heart. The blood is at a lower pressure than in arteries. All veins except the pulmonary vein carry deoxygenated blood. free short movies for preschool