Valves in Heart

Q.

What is the function of valves ?

Q. Why do right ventricle have tricuspid valves where as left ventricle have bicuspid valves?
Why both ventricles have same valves?

Q. Where is the dirty blood in our body filtered?​

Q. Name the red pigment which carries oxygen in blood.

Q.

Give the exact location of each of the following structures:
Bicuspid valve

Q.

Mitral valve is the other name of ______________

1. Bicuspid valve

2. Tricuspid valve

3. Valve found in vena cava

4. Valve found at the base of the dorsal aorta

Q. What substance/substances are transported in plants by:​

(b) sieve tubes (or phloem)?​ ​ ​

Q. What is the function of Semilunar valves?

Q. Name the following:

(ii) The tube that passes the urine to the outside of the body.

Q.

What prevents blood from flowing in the wrong direction in the heart?

Q. What would be the consequences of deficiency of haemoglobin in our bodies ?

Q. Name the following:

(i) The tube arising from the notch of the kidney on the median side and connecting behind with the urinary bladder.

Q.

Choose the odd one out:

Mitral valve, Sino-atrial node, Aorta, Pulmonary vein

1. Aorta

2. Mitral valve

3. Sino-atrial node

4. Pulmonary vein

Q.

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

​

Q.

The valve present between the right atrium and the right ventricle is the
(a) tricuspid valve (b) bicusid valve (c) semi - lnar valve (d) mitral valve

Q.

How will the following conditions affect transpiration?​Insufficient absorption of water by the roots​

Q.

What prevents mixing of blood between auricles and ventricles. How?

Q. If due to some injury, chordae tendineae of tricuspid valve of the heart are partially non-functional, what will be the immediate affect

1. The 'Pace-maker' will stop working
2. Blood will tend to flow back into left atrium
3. Flow of blood into pulmonary artery will be reduced
4. Flow of blood into aorta will be slowed down.

Q. Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the questions that follow:

c) Why does the cortex of the kidney show a dotted appearance?

Q. Name the following:

(ii) The respiratory pigment present in RBCs.

Q. What is the purpose of heart valves?

1. To pump blood all over the body
2. To carry blood all over the body
3. To keep blood flowing in one direction
4. To store the blood

Q. Choose the correct statements from the following
1) Veins are made of three different wall layers and valves.
2) A person with a ‘B’ blood group can donate blood to any blood group of the ABO system.
3) Angina is acute chest pain when blood circulation to the brain is reduced.
4) Vitamin K is necessary for blood clotting.

1. statements 2 and 4
2. statements 1 and 2
3. statements 2 and 3
4. statements 1 and 4

Q. Where are the valves located in human heart ? Write their names.

Q.

State whether true or false. Rewrite the false statement by changing first or last word only.
Urethra carries urine from kidney to urinary bladder.

1. True
2. False

Q.

What is the difference between semilunar valve and pocket valves

Q. Why the wall of left ventricle is thicker than right ventricle?

1. The left ventricle pumps more amount of blood than right ventricle.
2. The left ventricle pumps oxygenated blood against the gravity.
3. The left ventricle pumps oxygenated blood against high pressure.

Q.

The pulmonary artery carries:

1. Deoxygenated blood to the brain

2. Deoxygenated blood to the lungs

3. Oxygenated blood to the brain

4. Oxygenated blood to the lungs

Q. have thick walls to withstand high pressure of blood flowing through them.

1. Arteries
2. Veins
3. Capillaries

Q.

Tricuspid valve is present between

1. Right atrium and ventricle

2. The two atria

3. The two ventricles

4. Left atrium and ventricle

Q. Which of the following valve is present in between right atrium and right ventricle?

1. Bicuspid
2. Tricuspid
3. Semilunar
4. Atrial