2bloodcirculationandtransport_f3
DESCRIPTION
ÂTRANSCRIPT
•HUMAN•PLANT
BY:PUAN ROSITA MOHD YUSOF
BANDAR BUKIT MAHKOTA (update Feb 2012)
•Yellow liquid•90% water. 10% dissolved substances.•Function:
•Transport nutrient•Remove wastes distribute hormones, enzymes•Distribute energy fr liver to all body parts
O₂ & CO₂
Body defence
Blood clotting
HUMAN BLOOD
FUNCTIONS: Protection, Regulatory and Transportation
BLOOD CELLS (45%) PLASMA (55%)RED BLOOD CELLS (ERYTHROCYTES)
WHITE BLOOD CELLS
PLATELETS
NUTRIENTS
INORGANIC IONS
PROTEIN
DISSOLVE GASES
HORMONES
WASTE PRODUCTS
1. Biconcave shape2. No nucleus3. Has haemoglobin
that transport O24. Produced in bone
marrow5. Life span: 4 month
(120 days)
1. Can change shape2. Have nuclei3. Produced in bone marrow and
lymph nodes4. Life span: 2 days – few
months5. 2 types:
1. Granulocytes2. Agranulocytes
1. Small pieces in the blood2. Do not have definite shape3. Life span: few hours – 9
days
CIRCULATORY SYSTEM HAS 4 BASIC UNITS
CIRCULATING FLUIDS - BLOOD
PUMPING DEVICE - HEART
BLOOD VESSELS – ARTERY, VEINS & CAPILLARIES
VALVES
Characteristic Artery Capillary Vein Cross section Circular Circular Oval
Valves Absent except in PA
Absent Present
Lumen Narrow Very narrow Fairly wide
Size of wallThick muscular wall
Very thin – one cell layer thick
Thin muscular layer
Colour Red Bluish red Bluish red
Oxygen content
Oxygenated blood(except in PA)
Oxygenated blood ===deoxygenated blood
Deoxygenated blood (except in PV)
HEART AND MAJOR BLOOD VESSLES
HUMAN DOUBLE CIRCULATORY SYSTEM
SUBSTANCES EXAMPLE FROM TO BY
RESPIRATORY GASES
OXYGEN LUNGS TISSUES RBC
CARBON DIOXIDE TISSUES LUNGS PLASMA &
RBC
EXCRETORY PRODUCTS UREA LIVER KIDNEYS PLASMA
END PRODUCT OF DIGESTION
GLUCOSE SMALL INTESTINE
LIVER/TISSUES PLASMA
AMINO ACIDS SMALL INTESTINE
LIVER/TISSUES PLASMA
MINERAL SALTS
CALCIUM S/INTESTINE BONE/ TEETH PLASMA
IRON S/INTESTINE & LIVER
BONE MARROW PLASMA
FACTORS INCREASING RISKS
OF HEART
DISEASE
CHOLESTEROL/
OBESITY
LACK OF EXERCISE
HEREDITARY
ALCOHOL
STRESS
SMOKING
GROUP CAN DONATE TO CAN RECEIVE FROM
A A & AB A & O
B B & AB B & O
AB AB ALL
O ALL O
TRANSPORT SYSTEM IN PLANTS
Definition: the evaporation of water from a plant.
90% of the absorbed water by the roots lost by
evaporation
Factors affecting transpiration:Light – L↑, T↑
Temperature – T↑, T↑
Humidity – H↑, T↓
Wind speed – W↑, T↑
Water availability – WA↓, T↓
Altitude - A↑, T↑ (as pressure decrease)
Main function of stomata is to allow gases to diffuse in and out of the leaf.Photosynthesis – CO2 diffuses into leaf and O2 diffuses out of the leaf.When stomata open, water vapour is released to the surroundings.
http://www.youtube.com/watch?feature=player_detailpage&v=MxwI63rQubU