TOPIC 8 Flashcards
Why do we need red blood cells?
to transport substances including oxygen and glucose to tissue and remove waste products , including carbon dioxide and urea
what attaches to red blood cells to bind with substances?
haemoglobin
what does plasma do?
transport nutrients
cardiac output equation?
stroke x heart rate
stroke volume?
The stroke volume is the volume (litres) of blood pushed into the aorta
per beat
anaerobic respiration equation?
glucose ——-> lactic acid + energy
What is the equation for cardiac output
(Litres/min)
Stroke volume x heart rate
Litres/beat) (Beats/min
What are the factors of exchange?
Surface area
Diffusion distance
Concentration gradient
What is the adaptation of plasma?
Plasma are made by water so they absorb water soluble substances
What are platelets?
Small colorless disc shaped cell fragment without a nucleus
What do platelets do?
Prevent bleeding by make blood clots
What are a platelets adaptations?
Proteins on their surfaces allow them to stick to blood vessel walls
What are phagocytes?
Type of cell within the body capable of engulfing and absorbing bacteria
What is the aerobic respiration equation?
Glucose + oxygen ——> carbon dioxide + water + energy
