blood clotting-lqc 6b

Question 1

a blood clot is also known as a

Answer 1

thrombus

Question 2

step 1 of blood clotting process

Answer 2

Damage to the endothelium of the wall of an artery

Question 3

step 2 of blood clotting process

Answer 3

The enzyme called thromboplastin is released from platelets and damaged tissue

Question 4

step 3 of blood clotting process

Answer 4

This enzyme, in presence of calcium ions and vitamin K converts prothrombin into the enzyme thrombin

Question 5

step 4 of blood clotting process

Answer 5

Thrombin converts fibrinogen into fibrin, which forms a mesh of insoluble fibres

Question 6

step 5 of blood clotting process

Answer 6

The mesh traps platelets and red blood cells forming a blood clot

Question 7

what is a platelet

Answer 7

A cell fragment that releases thromboplastin

Question 8

what is thromboplastin

Answer 8

A soluble enzyme that catalyses the conversion of prothrombin to thrombin
(globular)

Question 9

what is prothrombin

Answer 9

A soluble plasma protein (globular)

Question 10

what is thrombin

Answer 10

An enzyme that catalyses the conversion of fibrinogen to fibrin (globular)

Question 11

what is fibrinogen

Answer 11

A soluble plasma protein (globular)

Question 12

what is fibrin

Answer 12

An insoluble (fibrous) protein that forms a mesh to trap red blood cells

Question 13

Which artery becomes blocked which leads to a heart attack?

Answer 13

coronary artery

Question 14

What effect does this have on the blood flow and oxygen to the heart muscle?

Answer 14

prevents blood flow and oxygen supply to heart muscle