Lakhmir Singh solutions for बायोलॉजी [इंग्रजी] इयत्ता १० आईसीएसई chapter 8 - Circulatory System [Latest edition]

True or False.

Lower animals possess some specialised internal circulatory fluids.

True or False.

Blood travels via sinuses between tissues and from lacunae.

True or False.

The respiratory pigments are present in the white blood cells of the blood that passes through this system.

The ______ conduct the blood from the heart to the tissues and ______ carry it back from the tissues to the heart.

Blood vascular system is basically of two types: ______ and ______ circulatory system.

Name the Scientist.

Who discovered the function of heart and the circulation of the blood?

Name the Scientist.

Who discovered capillaries?

Name the Scientist.

Who discovered the process of determining the blood pressure?

A contraction phase of a chamber of the heart is called a ______ and a relaxation phase is called a ______.

The blood pressure of a normal adult person is ______.

Fluids outside the cells are generally called ______ fluids.

True or False.

Approximately 70,000 miles of blood arteries make up your body.

True or False.

The capillaries also take waste products away from your tissues.

True or False.

Leucocytes are also known as thrombocytes.

How long is our circulatory system? (in kilometres)

In the lifespan of a 75-year-old person, how many times did the person's heart beat?

How much blood does the heart give out in each beat and in each minute? (in millilitres or litres)

_________ is an extension of the circulatory system.

Lymph _________ drain into lymph nodes.

The lymph is colourless or yellowish and contains _________.

True or False:

Lymph supplies carbon dioxide to the tissues.

True or False:

Lymphatic system helps in removing cellular waste.

True or False.

Pulmonary artery carries oxygenated blood.

True or False.

Lymph nodes are sites of fighting infections.

True or False.

Spleen is the site of RBC destruction.

True or False.

Blood group O is the universal recipient.

True or False.

Diastole is the contraction phase of cardiac cycle.

Haemoglobin contains the metallic element ______.

Sickle cell anaemia is disorder of ______.

______ and ______ are agranulocytes.

______ are responsible for blood coagulation.

Electrical activity of heart starts at ______.

Match the Following:

The compound formed when haemoglobin combines with carbon dioxide in blood. 

Give One Word Answer.

Fluid collected in tissues that are extensions of the circulatory system.

Give One Word Answer.

Rhythmic centre that controls pumping of the heart.

Give One Word Answer.

To supplement blood loss by a person during an emergency situation.

Give One Word Answer.

Another name for platelets.

Which of the following is not a component of blood?

Which of the followings is required for blood coagulation?

Which of the following elements is not present in lymph?

Blood Group AB can receive blood from

Histamine is secreted by ______.

Arteries carry ______.

Most common type of haemoglobin is ______.

Vena Cava pours blood in ______.

Which of the following is not a layer of heart wall?

Oxygenated blood from lungs first reaches ______.

 Choose the correct answer from the four options given below :  
(i) While recording the pulse rate, where exactly does a doctor press on our wrist ? 

A muscular wall is absent in ______.

Enumerate the chambers of the heart.

What are the components of blood?

What are the types of leucocytes?

Enumerate the functions of leucocytes.

Differentiate between:

Red blood cells (RBC) and White blood cells (WBC)

Differentiate between:
Blood and Lymph. 

Differentiate between:
Diastole and Systole.

What is the difference between pulmonary circulation and systemic circulation?

Differentiate between the Following.

Plasma and Lymph

Differentiate between the following pair of terms:

Pulmonary artery and pulmonary vein.

Explain the steps of the cardiac cycle.

Write a short note on the ABO system of blood grouping.

Write a short note on the components of blood.

What are the main steps in coagulation of blood?

Differentiate between the types of blood vessels.

The diagram given below represents the simplified pathway of the circulation of blood. Answer the questions that follow.

1. Name the blood vessels labelled 1 to 4.
2. Which blood vessel supplies oxygenated blood to the muscles of the heart?
3. What is the importance of blood vessel labelled 5?
4. What is the type of blood circulation that takes place between the heart and the lungs?
5. Draw a diagram of the different blood cells as seen in a smear of human blood.

Given below is a diagram of a human blood smear. Study the diagram and answer the questions that follow:

1. Name the components numbered ‘1’ to ‘4’.
2. Mention two structural differences between the parts ‘1’ and ‘2’.
3. Name the soluble protein found in part ‘4’ which forms insoluble threads during clotting of blood.
4. What is the average lifespan of the component numbered ‘1’ ?
5. Component numbered ‘1’ do not have certain organelles but are very efficient in their function. Explain.

Neelima read an article in the newspaper.

'India is one of the many countries which has a high rate of cardiovascular disease. The annual deaths due to CVD in India has risen from 2.26 million to 4.77 million. The number of deaths due to heart attack is around 25,000 - 28,000 for the past four year.'

She searched the internet to find more details as she was concerned about her ailing grandparents and her parents. She decided to ask her family doctor of why this is so prevalent and what exactly should be done. Listening to young girl expressing her desire to protect her elders, the kind doctor suggested few methods and asked her to make a strict diet chart.

1. Write the methods and diet you think that the doctor has suggested.
2. What values do you learn from Neelima?