1 / 22

Blood

Blood. Subject: CE Biology. Transport System. Q: Guess how much time it takes from from Kowloon to Hong Kong?. a) in 1900. b) in 1950. c) in 2000. Q: What makes the difference?. We have a well planned TRANSPORT SYSTEM. Circulatory System.

didina
Download Presentation

Blood

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Blood Subject: CE Biology

  2. Transport System • Q: Guess how much time it takes from from Kowloon to Hong Kong? a) in 1900 b) in 1950 c) in 2000 • Q: What makes the difference?

  3. We have a well planned TRANSPORT SYSTEM

  4. Circulatory System • The same idea of TRANSPORT applies to LIVING ORGANISMS • We need TRANSPORT when • 2 cells are far from each other • materials needed to be moved from one place to another • huge sum of substances to be moved

  5. 3 Main Components • BLOOD...........(as a carrier or medium) • BLOOD VESSELS......(as a network) • HEART...............................(as a pump)

  6. Plasma Blood cells A Centrifuge for separation

  7. Blood Plasma • Plasma is approx. 55% by vol. and contains • WATER (as a solvent) • SOLUBLE SUBSTANCES (eg. glucose, amino acids) • nutrients • wastes (eg. CO2, urea, excess minerals) • plasma protein (blood clotting) • hormones (internal messenger) • antibodies (defense mechanism)

  8. platelets

  9. Blood Cells • Blood cells is approx. 45% by vol. and contains • Red Blood Cells • contain hemoglobin(or blood pigment) • require Iron(Ferric ion or Fe2+) • White Blood Cells • digest dead cell or pathogens • produce antibodies • Platelets • agent for initializing blood clotting

  10. Red blood cells

  11. White blood cells The clotting of blood (plasma protein) Red blood cells

  12. Challenge Q-1 Q-2 Q-3 Q-4 Q-5

  13. Q-1: What’s the purpose of adding Sodium Oxalate solution in the treatment of a fresh sample of blood ? Ans:Slow down the processes of blood clotting to allow the conduction of this experiment.

  14. Q-2: In tube D, state with reasons to explain the effect of adding distilled water to the oxalated blood sample? Ans: Distilled water is hypotonic to the cytoplasm of the red blood cells , so they burst.

  15. Q-3: In tube D, what was the substance that give a homogenous pink colour to the solution? Ans: Since the red blood cells burst in hypotonic solution, all the hemoglobin molecules leaked out.

  16. Q-4: Which component of the blood sample formed the red sediment at the bottom of tube E? Ans: It is red blood cells that carrying hemoglobin give the red colour. They settled at the bottom since the solution is hypertonic.

  17. Q-5: What can you conclude about the function of blood by studying the observation in tube F and G? Ans: The main function of the red blood cells is to exchange O2 with CO2on the respiratory surface and carry them to body tissues.

  18. The process that enable the movement of materials (or molecules) in simple organisms. OSMOSIS Effects of hypotonic, isotonic, and hypertonic solutions on red blood cells.

  19. Blood Grouping The ABO Blood Group

  20. Agglutination Reaction

  21. Discussion (Problem Based)

More Related