Transportation in Humans

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.

The liquid portion of the blood is called plasma.

1. True

2. False

Q.

Humans have an open circulatory system.

1. False

2. True

Q.

Blood is not a tissue because it is a fluid.

1. False

2. True

Q.

Fluid medium of blood is called __.

Q.

Assertion: Plants do not require an active pumping system like heart for transportation.

Reason: Plants have large proportion of dead cells and energy requirement is high.

1. Assertion is true and reason is false.

2. Assertion if false and reason is true.

3. Assertion and reason both are true.

4. Assertion and Reason both are false.

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.⇒ d, 2.⇒ c, 3.⇒ b, 4.⇒ a.

2. 1.⇒ a, 2.⇒ b, 3.⇒ c, 4.⇒ d.

3. 1.⇒ c, 2.⇒ d, 3.⇒ a, 4.⇒ b.

4. 1.⇒ b, 2.⇒ a, 3.⇒ d, 4.⇒ c.

Q. Haemoglobin (Hb) is a

1. reproductive pigment
2. respiratory pigment
3. colouring pigment
4. photosynthetic pigment

Q. The oxygenated blood is carried from lungs to left auricle by __.

1. aorta
2. vena cava
3. pulmonary vein
4. pulmonary artery

Q. The concentration of oxygen and carbon dioxide in deoxygenated blood is-

1. Oxygen - 21$\%$ and Carbon dioxide - 0.04$\%$
2. Oxygen - 80$\%$ and Carbon dioxide - 20$\%$
3. Oxygen - 16$\%$ and Carbon dioxide - 4$\%$
4. Oxygen - 29$\%$ and Carbon dioxide - 71$\%$