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Transportation: The Circulatory System - 2

Description: Transportation: The Circulatory System – 2
Number of Questions: 15
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Tags: Transportation: The Circulatory System – 2 Heart, Blood Vessels and Circulation Blood and Blood Disorders Lymphatic System Transportation in Plants
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What are the lymphatic vessels arising in the intestinal villi called?

  1. Cisterna chyli

  2. Lacteals

  3. Lymphatics

  4. Lymph nodes

Show answer
Correct Option: B
Explanation:

Lacteals are the lymphatic vessels arising in the intestinal villi.

Which of the following statements is/are false?

a. The xylem vessel is a non-living, long tube which runs like a drain pipe through the plant. b. Xylem vessels contain cytoplasm and nuclei. c. In flowering plants, either only xylem vessels transport water or both xylem vessels and tracheids transport water.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c

Show answer
Correct Option: C
Explanation:

This is the correct option as this statement is false. Xylem vessels do not contain cytoplasm or nuclei.

Match Column – I with Column – II and select the correct option ||| |---|---| |Column – I
|Column – II| |A. Aplastic anaemia|1. Surplus of red blood cells| |B. Polycythemia|2. Bone marrow damage| |C. Thalassemia|3. Abnormal ratio of hemoglobin subunits|

  1. A - 1, B - 2, C - 3

  2. A - 3, B - 1, C - 2

  3. A - 2, B - 3, C - 1

  4. A - 2, B - 1, C - 3

  5. A - 3, B - 2, C - 1

Show answer
Correct Option: D
Explanation:

Aplastic anaemia is a disease in which the bone marrow and the blood stem cells that reside there are damaged. Polycythemia is a disease in which the proportion of blood volume that is occupied by red blood cells increases. Thalassemia is a genetic disease that results in the production of an abnormal ratio of hemoglobin subunits.

What are the red pulp cords of the spleen called?

  1. Malpighian corpuscles

  2. Cords of Billroth

  3. Peritoneum

  4. Lacteals

Show answer
Correct Option: B
Explanation:

The Cords of Billroth (also known as splenic cords or red pulp cords) are found in the red pulp of the spleen between the sinusoids.

What is/are the function(s) of lymph?

  1. They possess lymphocytes.

  2. They protect the body from various diseases.

  3. They equalise the body temperature.

  4. All of the above

Show answer
Correct Option: D
Explanation:

This is correct. It possesses lymphocytes. It protects the body from various diseases. It equalises the body temperature.

What happens to the oxygenated blood that comes from lungs?

  1. It enters the left atrium of the heart.

  2. It enters the right atrium of the heart.

  3. It enters the left ventricle of the heart.

  4. It enters the right ventricle of the heart.

Show answer
Correct Option: A
Explanation:

Oxygen-rich blood from the lungs comes to the thin-walled upper chamber of the heart on the left, i.e. the left atrium. The left atrium relaxes when it collects the blood.

Why is the human heart four-chambered?

  1. To protect the heart from mechanical shocks

  2. To allow the assimilation of various nutrients in blood

  3. To prevent the backflow of blood

  4. To prevent the mixing of oxygenated and deoxygenated blood

Show answer
Correct Option: D
Explanation:

The heart has different chambers to prevent the oxygen-rich blood from mixing with the blood containing carbon dioxide. The carbon dioxide-rich blood has to reach the lungs for the removal of carbon dioxide, and the oxygenated blood from the lungs has to be brought back to the heart. 

Which of the following prevent the backflow of blood?

  1. Auricles

  2. Ventricles

  3. Valves

  4. Vessels

Show answer
Correct Option: C
Explanation:

Valves ensure that the blood does not flow backwards when the atria or ventricles contract.

The chambers of the heart are separated by a partition called

  1. pericardium

  2. septum

  3. vena cava

  4. aorta

  5. myocardium

Show answer
Correct Option: B
Explanation:

This is the correct option. The chambers of the heart are separated by a partition called septum.

Which of the following may be caused due to Rh factor?

  1. Turner’s syndrome

  2. AIDS

  3. Sickle cell anaemia

  4. Erythroblastosis foetalis

Show answer
Correct Option: D
Explanation:

Mismatching of Rh factor causes Erythroblastosis foetalis or Hemolytic Disease of the Newborn (HDN). This fetal disease ranges from mild to very severe, and fetal death from heart failure (hydrops fetalis) can occur. Mismatching of Rh factor causes Erythroblastosis foetalis or Hemolytic Disease of the Newborn (HDN).

The shoot tip of a plant receives water through

  1. water vapours present in the air

  2. vessels and tracheids

  3. tracheids and xylem fibres

  4. vessels and parenchyma

Show answer
Correct Option: B
Explanation:

In xylem tissue, vessels and tracheids of the roots, stems and leaves are interconnected to form a continuous system of water-conducting channels that reach all parts of the plant. 

Which component of blood helps to minimise the excess loss of blood?

  1. Plasma

  2. RBC

  3. Platelet

  4. WBC

Show answer
Correct Option: C
Explanation:

Platelets help in the clotting of the blood. Thus, preventing the excessive loss of blood during an injury.

Match the following ||| |---|---| |a. Epidermis|1. It is the layer of cells around the vascular tissues in the roots. | |b. Root xylem|2. It is the outer layer of cells in the roots. | |c. Endodermis|3. It is the xylem tissue present in the roots.|

  1. a - 2, b - 1, c - 3

  2. a - 1, b - 2, c - 3

  3. a - 3, b - 2, c - 1

  4. a - 1, b - 3, c - 2

  5. a - 2, b - 3, c - 1

Show answer
Correct Option: D
Explanation:

This is the correct option. Epidermis is the outer layer of cells in the roots. Xylem is a plant tissue that conducts water and mineral salts from the roots to all other parts. Endodermis is the layer of cells around the vascular tissues in the roots. Epidermis is the outer layer of cells in the roots. Xylem is a plant tissue that conducts water and mineral salts from the roots to all other parts. Endodermis is the layer of cells around the vascular tissues in the roots.

Which of the following statements is incorrect?

  1. Plasma transports food, carbon dioxide and nitrogenous waste.

  2. Red blood cells transport oxygen.

  3. Plasma is a fluid medium that transports salts.

  4. WBCs help in clotting of blood.

Show answer
Correct Option: D
Explanation:

WBCs help protect the body from infection and kill harmful microbes. Platelets help in clotting the blood, so as to prevent the body from excess loss of blood during an injury.

Which of the following functions is not performed in the process of transpiration?

  1. Absorption of minerals

  2. Regulation of temperature

  3. Transportation of water

  4. Regulation of the opening and closing of stomata

Show answer
Correct Option: D
Explanation:

Transpiration helps in the absorption and upward movement of water from the roots to the leaves. It also helps in temperature regulation. However, it does not play any role in absorption of food.

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