Transportation in Humans

Q.

What is transportation

Q.

Why carbon dioxide is transported in the dissolved form in our blood as compared to oxygen?

Q.

State any five function of the blood.

Q.

What is difference between blood and hemoglobin?

Q.

Give the reason, why a matured mammalian erythrocyte lacks nucleus and mitochondria?

Q. What are single circulation and double circulation? Write the differences between them with the help of diagrams.

Q.

(a) What is blood ? Why is it red ?
(b) State the functions of blood in our body.
(c) Name a circulatory fluid in the human body other than blood.

Q.

What is the liquid part of the blood called? What is the function of platelets in the blood?

Q.

___ carry oxygen rich blood from the heart to all the body parts.

1. Veins
2. Arteries
3. Atria
4. Capillaries

Q.

What animals have single circulation?

Q.

Name the two types of transport systems in the human beings.

Q.

The blood leaving the tissues becomes richer in

1. Carbon dioxide

2. Water

3. Hemoglobin

4. Oxygen

Q. Which of the following statements are not true about villi?

1. Villi secrete enzymes to digest proteins, fats, and carbohydrates.
2. Villi are richly supplied with blood vessels.
3. Villi are present in the inner wall of the stomach.
4. It increases the surface area for greater absorption of digested food.

1. 3
2. 1, 3 & 4
3. 1 & 3
4. 2 & 4

Q.

Is human blood purple?

Q.

What are the components of the transport system in human beings? What are the functions of these components?

Q.

Blood goes only once through the heart in the fish during one cycle of passage through the body, and therefore, it is known as double circulation.

1. True
2. False

Q. The majority of carbon dioxide is transported as............

1. dissolved form
2. as carbaminohemoglobin
3. as bicarbonate ions
4. equally in all the forms

Q. Complete blood count [CBC] of Meghna is given below.
RBCs – 5 million/$m{m}^3$ of blood
WBCs –7000 /$m{m}^3$ of blood
Platelets – 40, 000/$m{m}^3$of blood
The components(s) of blood which is/are within normal range is/are

1. Platelets only
2. RBCs and WBCs
3. WBCs and platelets
4. RBCs only

Q.

The liquid portion of blood is called plasma.

1. False

2. True

Q. Leukocytes are also known as-

1. RBCs
2. Platelets
3. WBCs
4. Macrophages

Q. What are the constituents of blood? Why are the white blood corpuscles known as the soldiers of the body?

Q.

Identify the functions of blood from the following.

1. Transportation of nutrients
2. Regulation of body temperature
3. Exchange of gases
4. Protection against infections

1. (i), (iv)

2. (ii), (iii)

3. (iii), (iv)

4. (i), (ii), (iii), (iv)

Q. Assertion: Blood is not considered to be a tissue.
Reason: Blood is a fluid.

1. Assertion is true
2. Reason is False
3. Both assertion and reason are true
4. Assertion is false but reason is true

Q.

How much percentage of oxygen present in hemoglobin?

Q.

Match the following blood components with their function(s).

$\begin{array}{cc}ColumnI& ColumnII\\ 1.\text{RBC}& a.\text{Transport of energy and electrolytes}\\ 2.\text{WBC}& b.\text{Blood clotting}\\ 3.\text{Platelets}& c.\text{Immunity and Defense}\\ 4.\text{Plasma}& d.\text{Transport of gases}\end{array}$

1. 1.$\Rightarrow$ d, 2.$\Rightarrow$ c, 3.$\Rightarrow$ b, 4.$\Rightarrow$ a.

2. 1.$\Rightarrow$ a, 2.$\Rightarrow$ b, 3.$\Rightarrow$ c, 4.$\Rightarrow$ d.

3. 1.$\Rightarrow$ c, 2.$\Rightarrow$d, 3.$\Rightarrow$ a, 4.$\Rightarrow$ b.

4. 1.$\Rightarrow$ b, 2.$\Rightarrow$ a, 3.$\Rightarrow$ d, 4.$\Rightarrow$ c.

Q.

The liquid part of the blood is called plasma.

1. True
2. False

Q. Which chamber of human heart pumps the oxygenated blood into aorta?

1. Right atrium
2. Left ventricle
3. Left atrium
4. Right ventricle

Q. Choose the correct pathway which represents pulmonary circulation in humans. [1 Mark]

1. Right ventricle (oxygenated blood) $\Rightarrow$ Lungs $\Rightarrow$ oxygenated blood $\Rightarrow$ Right atrium
2. Right ventricle (oxygenated blood) $\Rightarrow$ Lungs $\Rightarrow$ deoxygenated blood $\Rightarrow$ Aorta
3. Right ventricle (deoxygenated blood) $\Rightarrow$ Lungs $\Rightarrow$ oxygenated blood $\Rightarrow$ Aorta
4. Right ventricle (deoxygenated blood) $\Rightarrow$ Lungs $\Rightarrow$ oxygenated blood $\Rightarrow$ Left atrium

Q.

Explain how platelets help the blood to clot?

Q. What is whole blood minus the cells called?

1. Red cells
2. Platelets
3. Plasma
4. Saline solution