Blood Vessels

Q.

The hepatic portal vein drains blood to the liver from?

1. Heart

2. Stomach

3. Kidneys

4. Intestine

Q.

Oxygenated blood is carried by:

1. Pulmonary artery

2. Pulmonary vein

3. Hepatic portal vein

4. Renal vein

Q.

Write any one important function of transpiration.

Q. Which plant tissue is responsible for the distribution of food prepared in the leaves? Name the four component parts of this tissue.

Q.

Valves are found in veins to check the backflow of blood flowing under

1. High pressure

2. Low pressure

3. No pressure

4. Atmospheric pressure.

Q. Anaemia is caused due to deficiency and it results in .

1. swollen neck
2. iodine
3. weakness
4. iron

Q. _________ collect deoxygenated blood from the superior and the inferior part of the body.

1. Pulmonary vein
2. Vena cavae
3. Pulmonary artery
4. Aorta

Q.

Which of the following blood vessels carries deoxygenated blood?

1. I and III

2. II and III

3. III

4. I and IV

Q. Differentiate between the following pair of terms:​

(d) RBC and WBC

Q.

Why blood capillaries are important for both arteries and veins?

Collect oxygenated blood from artery and return de-oxygenated blood to vein

Collect de-oxygenated blood from artery and return oxygenated blood to vein

Collect pathogens from veins and release into artery

Collect white blood cells from artery and pour it into vein

Q. Which of the following blood vessels are not correctly matched with their functions

1. The arteries - carry the blood away from the heart
2. The capillaries - enable the exchange of water and chemicals between the blood and the tissues
3. The veins - carry blood from the capillaries back toward the heart.
4. None of the above

Q.

Name the blood vessels which carry blood from:

(i)Kidney to posterior vena cava

(ii)Aorta to the liver

(iii)Upper half body to the right atrium

(iv)Right ventricle to lungs

Q. Study the following diagram carefully and then answer the questions that follow:

(c) Mention two structural differences between 1 and 2.

Q. Define:​
(ii) Transpiration​

Q.

Which of the following are blood vessels of the body?

1. Arteries

2. Capillaries

3. Veins

4. All of the above

Q. Select the correct direction of flow of blood from the heart.

1. Vein
2. Artery
3. Venule
4. Arteriole
5. Capillary

Q. Put a tick mark (✓) against the correct alternative in the following statements:​
(b) Blood Capillary is a:

1. Artery with thick wall
2. Narrow tube made up of endothelium only
3. Vein with large lumen
4. Broad tube

Q. What is the route followed by the oxygenated blood from the heart and deoxygenated blood back to it?

1. Artery
2. Capillaries
3. Arterioles
4. Veins
5. Venules

Q.

Read the paragraph and fill the blanks with the correct option sequence:

The blood vascular system of a cockroach is of (i)___ type, as blood flows in the body cavities. The generalised body cavity is called ii)____. Blood is colourless due to the absence of (iii)____. The heart is (iv)____ and works in coordination with alary muscles for contractions and dilations.

1. (i) Open (ii) Haemocoel (iii) Hemoglobin (iv) 13 chambered

2. (i) Open (ii) Blastocoel (iii)Hemoglobin (iv) 12 chambered

3. (i) Open (ii) Haemocoel (iii) Hemoglobin (iv) 12 chambered

4. (i) Open (ii) Haemocoel (iii) Porphyrin (iv) 13 chambered

Q. How many pulse beats can you count in one minute?

Q. Which of the following is the fluid component of the blood?

1. Plasma
2. RBC
3. WBC
4. Platelets

Q. How do veins prevent back flow of blood?

1. The pressure exerted by the heart pushes the blood back
2. The valves in the veins prevent back flow of blood
3. The suction in the heart pulls up the blood
4. The stroke volume increases and pushes the blood back

Q.

Name the blood vessels which carry deoxygenated blood to

a) Lungs b) Heart

Q. Oxygenated blood flows in:

1. Pulmonary arteries
2. Right ventricle
3. Right atrium
4. Pulmonary veins

Q. Why the blood that flows from the lungs to the heart appears bright red rather than dark red?

1. Oxygen makes it red.
2. Carbon dioxide makes it red.
3. Gastric juices produce the red color of blood.
4. The lungs add a pigment to the blood as it flows through them.

Q. Lack of Iron may lead to:

1. Goitre
2. Bad teeth
3. Weak bones
4. Anaemia

Q.

Transpiration is defined as

1. the rise of water up to the stem of a plant

2. the elimination of water with dissolved water products.

3. the loss of water as water vapors from the aerial parts of a plant

4. the loss of water as water vapor from the roots as well as the leaves of the plant.

Q. Generally, blood vessels which carry oxygenated blood are called _______ , and blood vessels which carry deoxygenated blood are called ______ .

1. veins, capillaries
2. veins, arteries
3. arteries, veins
4. capillaries, veins

Q.

The tiny branching capillaries unite into a common branch called the ___.

1. venule

2. arteries

3. veins

4. arteriole

Q.

The tiny branching capillaries unite into a common branch called the ___.

1. venule

2. arteriole

3. veins

4. arteries