Tag: transportation in living organisms

Questions Related to transportation in living organisms

The right side of the heart

  1. Pumps blood to the rest of the body

  2. Receives blood from the rest of the body

  3. Receives blood from the lungs

  4. None of the above


Correct Option: B
Explanation:
The right side of our heart receives oxygen-poor blood from our veins and pumps it to your lungs, where the blood picks up oxygen and gets rid of carbon dioxide. The left side of our heart receives oxygen-rich blood from our lungs and pumps it through our arteries to the rest of our body.
So, the correct option is 'Receives blood from the rest of the body'.

Human heart represents

  1. Double circulation

  2. Systemic circulation

  3. Pulmonary circulation

  4. None of the above


Correct Option: A
Explanation:

The human heart allows the complete separation of the deoxygenated and oxygenated blood. It has four chambers, the upper two atria and the lower two ventricles. The right side chambers (right atrium and right ventricle) are concerned with the deoxygenated blood. The right atrium receives the deoxygenated blood from the body and the right ventricle pumps it to the lungs. This is the pulmonary circulation. It completes when the left side chamber of the left atrium receives it. So, the left side chambers are concerned with oxygenated blood. The left ventricle then transports it to the rest of the body in the systemic circulation. So, the pulmonary and the systemic circulation maintained by the human heart constitute the double circulation of the blood.

Hence, the correct answer is 'Double circulation'

In the human body, the blood transports

  1. Oxygen

  2. Nutrients

  3. Carbon dioxide

  4. All of the above


Correct Option: D
Explanation:
The human circulatory system consists of a muscular four-chambered heart, a network of closed branching blood vessels and blood, the fluid which is circulated. Blood is a special connective tissue consisting of a fluid matrix, plasma, and formed elements. It is pumped by the heart to all over the body. In the human body, the blood transports oxygen, nutrients and carbon dioxide.
So, the correct answer is 'All of the above'.

The component of the circulatory system is/are

  1. Arteries

  2. Heart

  3. Veins

  4. All of the above


Correct Option: D
Explanation:

Circulatory system or cardiovascular system is the organ system that helps to transport oxygen, nutrients, hormones etc to all the cell of the body. It consists of heart, veins, arteries, capillaries. Thus, the correct answer is option D.

Vasoconstriction mainly causes

  1. Increase in heart beat

  2. Decrease in heart beat

  3. Increase in blood pressure

  4. Decrease in blood pressure.


Correct Option: C
Explanation:

Vaso means vessels and constriction means narrowing, therefore, narrowing of blood vessels results in vasoconstriction. Normally, it is done due to the shrinking of smooth muscles of vessels to react according to the environment by raising blood pressure for stabilization, prevent loss of heat, control blood flow in body, transfer nutrients and prevent from blood and fluid loss but in some cases it can also be a severe health problem leading to hypertension or high bp.

So the correct option is 'Increase in blood pressure'

Circulatory system does not help in

  1. Transport of gases

  2. Transport of nutrients

  3. Transport of hormones

  4. Passage of impulses.


Correct Option: D

The pumping action of the heart is due to the 

  1. Bones of the heart

  2. Muscles of the heart

  3. Spaces in the heart

  4. Both B and C


Correct Option: D
Explanation:

The Human circulatory system consists of a muscular four-chambered heart, a network of closed branching blood vessels and blood, the fluid which is circulated. The heart is a  4 chambered muscular organ present in the thoracic cavity in between the lungs. it does not have any bones. The chambers(spaces) of blood are filled with blood.T he muscular action of heart walls pump blood throughout the body through blood vessels. Hence the pumping 

So, the correct answer is 'Both B and C'.

The heart is slightly tilted towards the 

  1. Right side

  2. Not tilted at all

  3. Left side

  4. Upper side


Correct Option: C
Explanation:

The human circulatory system consists of a muscular four-chambered heart, a network of closed branching blood vessels and blood, the fluid which is circulated. The heart is mesodermal in origin. It is situated in the thoracic cavity, in between the two lungs. The heart is slightly tilted towards the left side because the right lung is larger than the left lung. This condition provides the heart with enough space to function properly and pump blood efficiently to different parts of the body.

So, the correct answer is 'Left side'.