Topical Test 8 : Transport System

In mammals, the circulatory system consists of the following, except.....

• arteries
• veins
• capillaries
• casparian strip

The atrioventricular valves are...

• tricuspid and bicuspid strips
• bicuspid and semilunar valves
• tricuspid and semilunar valves
• tricuspid and bicuspid valves

The circulation system found in mammals and humans is a closed circulation system.

• True
• False

Which of the following initiates the rhythmic beating of the heart in humans?

• Purkinje tissue
• Sinoatrial node
• Atrioventricular node
• Vagus nerve

Which of the following causes the 'lub' sound of the heartbeat?

• Closing of semilunar valve
• Closing of tricuspid and bicuspid valve
• Blood rushing into the atria
• Blood rushing into the ventricles

Which of the following structure is considered to be the pacemaker of the heart?

• AV node
• AV bundle
• SA node
• Purkinje fiber

When impulses are conducted through the heart, transmission is delayed at the...............so that the atria may contract before the.............

• Sinoatrial node, ventricles
• Sinoatrial node, atria
• Atrioventricular bundle, ventricles
• Atrioventricular node, ventricles

The purpose of the lymphatic system is to...

• Transport nutrients and oxygen
• Drain excess fluid from connective tissues
• Block the transport of blood proteins
• Produce red blood cells

Route of water movement in plant tissues are

• Apoplast, Symplast and Translocation
• Apoplast, Symplast and Transmembrane
• Apoplast, Translocation and Vacuolar
• Apoplast, Vacuolar and Traanspiration

Water is absorbed from the soil by root hairs and other epidermal cells through...

• transpiration
• translocation
• osmosis
• diffusion