form 4 : chapter 10 : transport

The animal that has the largest TSA/V is

• cat

• mouse

• flatworm

• horse

blood vessels that channel nutrient and oxygen to the heart is

• tricuspid valve

• semilunar valve

• coronary artey

• septum

1. Which part that has the highest rate of gaseous exchange in fish

• gill raker

• gill

• gills filament

• lamellae

1. Which parts of the heart that pumps blood to the lungs

• right atrium

• right ventricle

• left atrium

• left ventricle

What is the function of valve in vein

• slow down the blood flows in the vein

• increase the size of lumen

• decrease blood pressure in vein

• prevent backflows of the blood

what is the functions of aorta?

• pumps blood to the whole body

• transport blood from the lungs

• transport blood to the whole body

• pumps blood to the lungs

What is the types of circulatory system of fish

• double closed

• open

• single closed

• double closed incomplete

P - SAN generates impuls

Q - Purkinje fibre control the heartbeat

R - Impuls spread to the walls of atrium and push blood to ventricles

S - Impuls spread to both ventricles

T - Impulse reach the AVN

• P --> Q --> R --> S --> T

• P --> R --> T --> S --> Q

• P --> S --> R --> Q --> T

• P --> R --> T --> Q --> S

The substances that cause fibrinogen to change to fibrin is

• calcium ions

• vitamin K

• thrombin

• thrombokinase

Which of the following sequences is true for the involvement of protein during blood clotting

• prothrombin, thrombin, fibrinogen, fibrin

• thrombin, fibrinogrn, fibrin, prothrombin

• prothrombin, fibrinogen, thrombin, fibrin

• prothrombin, fibrin, fibrinogen, thrombin