1.1 what is cardiovascular disease? and how does circulation work?

SNAB edexcel A2 biology topic 1:

HideShow resource information
  • Created by: _lauren
  • Created on: 01-01-15 18:41

1. What is the process of all particles and liquids being transported in one direction known as?

  • single direction flow
  • mass flow
  • one way transportation
1 of 20

Other questions in this quiz

2. smooth muscle in arteries and veins allow the walls to....

  • constrict and dilate
  • stretch and recoil
  • be strong enough to withstand high pressure

3. (in atherosclerosis) once the endothelium is damaged, white blood cells move into artery wall and accumulate what? and what is the deposit that builds up called?

  • a) cholesterol b) atheroma
  • a) c02 b) atheroscleroma
  • a) cholesterol b) a blood clot
  • a) water molecules b) atheroma

4. what changes occur when there is direct contact of blood with collagen in damaged artey wall?

  • soluble plasma protein prothrombin --> thrombin which is an enzyme that catalyses soluble plasma protein fibrinogen --> long insoluble strands of fibrin. these strands form a tangled mesh, traps blood cells, forms clot.
  • insoluble protein prothrombin --> enzyme thrombin, catalyses fibrin --> long insoluble strands of fibrinogen which forms a tangled mesh that traps blood cells forming a clot
  • soluble plasma protein fibrinogen --> fibrin which is an enzyme that catalyses soluble plasma protein prothrombin --> long insoluble strands of thrombin. these strands form a tangled mesh, traps blood cells, forms clot.

5. in atherosclerosis, what blocks an artery? (or increases it's chance of being blocked by a blood clot)

  • white blood cells
  • build up of insoluble molecules
  • fatty deposits
  • cholesterol

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Lifestyle, health and risk resources »