Flashcards
B2 Blood
Flashcards do conjunto (20)
- 1What 4 things make up blood?-Red Blood cells
-White Blood cells
-Platelets
-Plasma - 2What part of the blood is plasma and what is its job?Plasma is the liquid part of blood its job is to transport dissolved substances around the body.
- 3Where does plasma transport carbon dioxide from and to?From the organs to the lungs to be breathed out.
- 4What waste product does plasma transport? From where to where? and for what?It transports urea from the liver to the kidneys. So that it can be urinated out.
- 5What does plasma transport from the small intestine to other organs? & Give an example.Solouable digestion products like glucose.
- 6What is the job of red blood cells?To transport oxygen from the lungs to the body's cells.
- 7Give 2 adaptations of a red blood cell-Their disk shape provides a large surface area
They have no nucleus so more oxygen can be carried. - 8What is the scientific name of the red blood cell shape?A Biconcave disk
- 9What molecule do red blood cells have? & What does it do?Haemoglobin. This combines with oxygen in the lungs making oxyhaemoglobin. The red blood cells then travel to the organs where oxyhemoglobin releases oxygen.
- 10What system are white blood cells a part of? & What subcellular feature do white blood cells contain?The immune system.
A nucleus. - 11Name 3 different types of white blood cells--Those that produce antibodies against micro-organisms
-Those that engulf and digest pathogens
-Those that produce antitoxins that neutralise the toxins produced by micro-organisms. - 12What would happen if we didn't have platelets? & What subcellular structure do platelets NOT have?When we cut ourselves we'd bleed a lot and have a lot of bruising.
A nucleus. - 13What are platelets?They are tiny fragments of cells and they help the blood to clot.
- 14What happens when you cut yourself? & What is the purpose of a scab?The platelets cause blood to clot at the wound. The clot dries and hardens to form a scab. This allows new skin to form and grow underneath the scab, whilst stopping micro-organisms from entering.
- 15What is coronary heart disease & What can it result in?When the coronary arteries that provide blood to the heart become blocked due to the build-up of fatty material, this means less blood flows to the heart, reducing its oxygen supply, and can potentially result in a heart attack.
- 16What does non-communicable mean?Something that is not infectious
- 17Name the first way that coronary heart disease can be treated.Stents.- This is an expandable tube that can be put inside arteries to hold them open. So blood can flow through.
- 18Give 2 pros and 3 cons of using stents to treat coronary heart disease.Pros- The surgery is quick. & The tubes last for a long time.
Cons- It requires surgery that could lead to an infection or heart attack. A blood clot could also develop near the stent. - 19What are statins? & What can they increase & Decrease?This is a drug that alters the level of bad cloistral or LDL which could otherwise lead to coronary heart disease. They can increase the amount of good cholesterol and decrease the amount of the bad.
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- Key Stage 3 Core Science FlashCards sobre B2 Blood, criado por Kayla Asante em 07-07-2021.
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- Kayla Asante
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