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Chapter 7, Part2

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The Transport System { 2}

Question 1 of 21

1

mammals have ___ in which the blood is pumped by a powerful muscular heart and circulated in a continuous system of tubes -arteries, veins and capillaries- under pressure.

Select one of the following:

  • a closed circulation

  • an open circulation

Explanation

Question 2 of 21

1

The heart is divided into four chambers and blood flows from the ___ side of the heart to the ___ and then back to the ___ side.

Select one of the following:

  • right | lungs | left

  • left | lungs | right

  • right | body | left

  • left | body | right

Explanation

Question 3 of 21

1

As blood passes ___ through the heart, it is called a ___ circulation.

Select one of the following:

  • thrice | double

  • twice | single

  • twice | double

  • four times | double

  • once | double

Explanation

Question 4 of 21

1

Advantages of the circulatory system of mammals are:

Select one of the following:

  • oxygenated blood reaches respiring tissues undiluted by deoxygenated blood.

  • simultaneous low-pressure delivery of oxygenated blood to all regions of the body.

  • simultaneous high-pressure delivery of oxygenated blood to all regions of the body.

  • the heart is very strong and so is able to continue pumping blood.

Explanation

Question 5 of 21

1

Blood is a special tissue consisting of a liquid medium called ___ in which ___ ( red cells), ___ (white cells) and ___ are suspended.

Select one of the following:

  • plasma | erythrocytes | leucocytes | plates

  • plasma | leucocytes | erythrocytes | palets

  • plasmodium | erythrocytes | leucocytes | platelets

  • plasma | erythrocytes | leucocytes | platelets

Explanation

Question 6 of 21

1

The erythrocytes are in the transport of reparatory gases.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 21

1

Plasma transports:

Select one or more of the following:

  • nutrients

  • urea

  • undissolved proteins

  • heat

  • minerals

  • dissolved proteins -antibodies

  • dissolved proteins --with regulatory roles

  • hormones

  • oxygen

  • carbon dioxide

Explanation

Question 8 of 21

1

Erythrocytes transport:

Select one or more of the following:

  • oxygen

  • dissolved proteins

  • carbon dioxide

  • antibodies

Explanation

Question 9 of 21

1

Lymphocytes..

Select one or more of the following:

  • transport carbon dioxide

  • form antibodies

  • fight antibodies

Explanation

Question 10 of 21

1

Phagocytes..

Select one or more of the following:

  • form bacteria

  • form antibodies

  • ingest bacteria

Explanation

Question 11 of 21

1

platelets..

Select one or more of the following:

  • form antibodies

  • play a part in the blood clotting mechanism

  • transport various substances to body cells

Explanation

Question 12 of 21

1

Arteries carry blood to the heart.

Select one of the following:

  • True
  • False

Explanation

Question 13 of 21

1

Arteries carry blood away from the heart and veins do the opposite.

Select one of the following:

  • True
  • False

Explanation

Question 14 of 21

1

Capillaries are..

Select one of the following:

  • fine networks of tiny tubules linking arteries and veins.

  • fine network of large tubules separating arteries and veins.

Explanation

Question 15 of 21

1

Both arteries and veins have strong walls, but the walls in veins are much thicker and stronger.

Select one of the following:

  • True
  • False

Explanation

Question 16 of 21

1

In comparison to arteries and veins where the walls are strong due to the presence of ___ , capillaries' walls only consist of ___.

Select one of the following:

  • collagen fibres | endothelium

  • endothelium | collagen fibres

  • collage fibres | endothelial cells

  • epithelial fibres | endothelium

Explanation

Question 17 of 21

1

Veins have valves at intersections to prevent backflow.

Select one of the following:

  • True
  • False

Explanation

Question 18 of 21

1

The ___ side of the heart pumps ___ blood to the ___, and the arteries, veins and capillaries serving the ___ are known as ___ circulation.

Select one of the following:

  • left | deoxygenated | lungs | lungs | pulmonary

  • right | oxygenated | body | body | pulmonary

  • right | deoxygenated | lungs | lungs | pulmonary

Explanation

Question 19 of 21

1

Arteries, veins and capillaries serving the ___ side of the heart by taking blood to ___ are known as the ___ circulation.

Select one of the following:

  • right | body cells | systemic

  • right | body cells | pulmonary

  • right | the lungs | systemic

Explanation

Question 20 of 21

1

arteries connect to the main ___ and veins join the ___ carrying blog back to the heart.

Select one of the following:

  • aorta | vena cava

  • vena cava | aorta

  • semi luna valves

Explanation

Question 21 of 21

1

The branching sequence for circulation is:

Select one of the following:

  • artery > aorta > arteriole > capillary > venule > vein > semi lunar valve

  • aorta > artery > arteriole > capillary > venule > vein > vena cava

  • vena cava > vein > venule > capillary > arteriole > aorta > artery

  • aorta > artery > venule > capillary > arteriole > vein > vena cava

Explanation

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