Significance of Double Circulation

Q.

Explain the process of blood circulation in the body with the help of a schematic diagram.

Q.

Which blood vessel carries the highest concentration of oxygen?

Q. The right side of the heart carries_____________blood and the left side of the heart carries _______________ blood

1. oxygenated blood, deoxygenated blood
2. deoxygenated blood, oxygenated blood
3. oxygenated blood, oxygenated blood
4. deoxygenated blood, deoxygenated blood

Q. Mixing of oxygenated and deoxygenated blood occurs in the heart of

1. crocodile
2. frog
3. human
4. bird

Q. In a girdled plant, when water is supplied to the leaves above the girdle, leaves may remain green for sometime then wilt and ultimately die. What does it indicate?

Q.

What are the four vessels of heart?

Q. In mammals and birds why is it necessary to separate oxygenated and deoxygenated blood?

Q. Mammals are said to have a "double circulatory system". This means

1. That the blood vessels are paired.
2. That there are two types of blood vessels attached to every organ; an artery and a vein.
3. That there are two system; one from the heart to the lungs and back to the heart and other to and from rest of the body.
4. That the blood circulates twice as quickly.

Q. The right side of the heart carries _____________ and the left side of the heart carries _______________.

1. oxygenated blood, deoxygenated blood
2. deoxygenated blood, oxygenated blood
3. oxygenated blood, oxygenated blood
4. deoxygenated blood, deoxygenated blood

Q. In the given list how many animals have complete double circulation.
Fish, Alligator, Frog, lung fish, Prawn, Crocodile birds, mammals.

1. Five
2. Four
3. Three
4. Six

Q. Incomplete double circulation is seen in

1. Fish
2. Birds
3. Amphibians
4. Mammals
5. Arthropods

Q.

Single circulation i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by?

1. Labeo, Chameleon, Salamander

2. Hippocampus, Exocoetus, Anabas

3. Whale, Dolphin, Turtle

4. Hyla, Rana, Draco

Q. Briefly describe the transport of $C{O}_2$ in the blood.

Q. Blood circulation in human is

1. Single and open
2. Double and open
3. Double and close
4. Single and close

Q. Define double blood circulation?

Q. Describe double circulation in human beings schematically. Why is it necessary?

Q. What is double circulation? What is the benefit of double circulation?

Q. Short / Long type answer type questions.
What is double circulation? Describe it with reference to human heart.

Q. Describe Double circulation in heart briefly?

Q. Why do arteries need thick, strong, elastic walls ?

Q. (a) Draw a sectional view of human heart and label on it aorta. pulmonary vein, vena cava, left ventricle.
(b) Why is double circulation of blood necessary in human being?

Q. Double circulation is found in the heart of

1. Birds and amphibians
2. Birds and mammals
3. Fishes and amphibians
4. Amphibians and reptiles.

Q. Give the difference between open and closed circulation.​