Active transport involves

(a)

Movement of molecules from lower to higher concentrations

(b)

Expenditure of energy

(c)

It is an uphill task

(d)

All of the above

Which is the correct sequence of  blood flow

(a)

Ventricle → atrium → vein → arteries

(b)

Atrium → ventricle → veins → arteries

(c)

Atrium → ventricle → arteries → vein

(d)

Ventricles → vein → atrium → arteries

A patient with blood group O was injured in an accident and has blood loss. Which group of blood should be used by doctor for transfusion?

(a)

O group

(b)

AB group

(c)

A and B group

(d)

All blood group

‘Heart of Heart’ is called

(a)

SA node

(b)

AV node

(c)

Purkinje fibres

(d)

Bundle of His

Which one of the following shows correct composition of blood?

(a)

Plasma - Blood + Lymphocyte

(b)

Serum - Blood + Fibrinogen

(c)

Lymph - Plasma + RBC + WBC

(d)

Blood - Plasma + RBC + WBC + Platelets

__________ involves evaporative loss of water from aerial parts.

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Transpiration

Structures in roots that help to absorb water are __________.

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root hairs

Normal blood pressure is __________.

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 120mm / 80mm Hg

The normal human heartbeat rate is about ____________ time per minute.

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What is the shape of RBC in human blood?

Which kind of cells are found in the lymph?

Name the heart valve associated with the major arteries leaving the ventricles.

Who discovered Rh factor? Why was it named so?

How are arteries and veins structurally different from one another?

How does the pulmonary artery and pulmonary vein differ in their function when compared to a normal artery and vein?