Circulatory System

Q.

Write the steps in respiration.

Q.

Describe briefly the role of respiratory pigment in human being?

Q. Name the four chambers of the heart.

Q.

Bicuspid and tricuspid valves are closed during

1. Ventricular systole

2. Ventricular diastole

3. Atrial systole

4. Late joint diastole

Q. Who discovered the path of circulation of blood in the human body?

1. Robert Hooke
2. William Harvey
3. Theodore Schwann
4. Louis Pasteur

Q.

What does the circulatory system consists of? Give the main functions of each

Q.

Anwer the following questions: [5 MARKS]
1. Name the vessels which carry blood to the heart.
2. Name the vessels which carry blood away from the heart.
3. Name the blood vessel that brings oxygenated blood to the human heart.
4. Which chamber of the human heart receives deoxygenated blood?
5. Describe how deoxygenated blood from this chamber is sent to all parts of the body.

Q. Which of the following are essential for survival?

1. Food
2. Water
3. All of these
4. Oxygen

Q.

___ is also called the respiratory pigment.

Q. Which of the following is/are function(s) of the circulatory system?

1. Delivery of dissolved gases to cells
2. Delivery of nutrients to cells
3. Removal of wastes from cells
4. Protection of vital organs

Q.

Which of the following substances needs to be transported to each cell in a living organism for its proper functioning?

1. Food

2. Water

3. Oxygen

4. All of these

Q. Name the four chambers of the heart.

Q.

Even though pulmonary artery carries carbon dioxide rich blood, why is it called an artery and not a vein?

Q. Match the following.

1. Artery
2. Vein
3. Lungs

Q. State whether the following statements are true or false:
Statement 1: Circulatory system comprises of blood and heart only.
Statement 2: Blood vessels are tube-like structures connecting different body parts.

Q.

The circulatory system transports which of the following?

1. Oxygen

2. Nutrients

3. Cellular waste

4. All of the above

Q.

Rewrite and complete the following sentences by inserting the correct word in the space indicated:

Oxygen combines haemoglobin present in RBC and forms.

Q.

Even though pulmonary artery carries carbon dioxide rich blood, why is it called an artery and not a vein?

Q.

What is circulatory system?

Q.

Now that Appu and Bholu had learned about the different types of blood vessels, they were curious to know how the flow of blood was maintained in these vessels. The doctor said it is maintained by a pump; Appu couldn’t understand what the doctor was trying to say. The doctor asked them to look at the diagram carefully.

They noticed something in the diagram which they had overlooked earlier. What could have they noticed __ ?

Q. What veins carry deoxygenated blood?

Q. I am not able to understand the circulatory system clearly.

Q. What veins carry oxygenated blood?

Q. What are the upper chambers of human heart called?

1. Septum
2. Atria
3. Ventricles
4. Vene cava

Q.

Sedimentation is the process which derives energy from food.

1. True

2. False

Q. acid is present in our stomach.

1. Nitric
2. Sulphuric
3. Hydrochloric

Q.

Which of the following is a function of the circulatory system? (You may choose more than one option.)

1. Ferrying oxygen from lungs to cells

2. Transporting carbon dioxide from cells to lungs

3. Delivering nutrients around the body

4. Carrying wastes from cells to excretory system

Q.

• Number of days we can survive without water , air and food ?

Q. Question 4
Why is the transport of materials necessary in a plant or in an animal? Explain.

Q.

Ans the following.:

1)Give 4 functions of heart

2)write 3difference between xylem and phloem