Transport Flashcards
What is it called when organisms are made of just 1 cell
Unicellular organisms
What does xylem transport
Water, mineral ions
What does phloem transport
Sucrose, amino acids
How are artery structure different to vein
Thick walls, small lumen, more elastic tissue/ muscle
What term is used to describe how the process of gas exchange takes place
Diffusion
Explain how coronary heart disease cause death
Heart attack, high blood pressure, Fats
What is the function of RBCs
Carry oxygen around the body
Describe RBC function
Biconcave shape, carry hamoglobin, no nucleus
What do phagocytes do
Engulf bacteria
What do lynthocytes do
produce antibodies
What is the function of a vein
thin cell wall, large lumen, little muscle/ tissue
Where are hamoglobins set in
Cytoplasm
Describe cappilaries
1 cell thick, have nucleus,
substances can diffuse in and out of plasma
(3) What do plasma transport
Urea, hormones, heat energy
How does the immune stsyem respond to disease
By using white blood cells
