Blood Pressure

Q. Describe the structure of the kidney with the help of a labelled diagram.

Q. What is pulse rate?

Q. Why is excretion necessary in living beings?

Q. What is meant by osmoregulation?

Q.

The pressure of blood inside the artery during ventricular systole (contraction) is called __.

Q.

What are the functions of nephron

Q. Define the following:

(i) Excretion

Q.

What is the role of hemoglobin present in the red blood cells?

Q. Write True (T) or False (F) for the following statements in the spaces provided. Rewrite the false statemAents in correct form.

(iv) Urine is devoid of blood cells.

1. False
2. True

Q. Pressure with which the blood flows in arteries decreases as it travels to veins and finally capillaries. Based on this statement, which among the three are the narrowest blood vessels?

1. Arteries
2. Veins
3. Capillaries

Q. Define the following:

(ii) Excretory organs

Q. Where in the urinary system do the following processes take place?

(i) Urine formation: _______________

Q. Which of these are NOT blood vessels?

1. Arteries
2. Capillaries
3. Veins
4. Valves

Q.

The color of blood is due to the presence of______

1. Red Blood Cells

2. Plasma

3. White Blood Cells

4. Platelets

Q.

Hemoglobin is also called

1. RBC

2. WBC

3. Respiratory pigment

4. All of these

Q.

The two-layered sac surrounding the heart is called _______.

1. Pericardium

2. Perichondrium

3. Periosteum

4. Pleura

Q.

State whether the following statements are true or false. If false, rewrite the correct form of the statement by changing the word/words.
A tracheid is longer than a vessel.

1. True
2. False

Q.

Pressure in artery during ventricular diastole (relaxation) is called __.

Q. The human heart consists of chambers.

1. two
2. three
3. five
4. four

Q. Pressure with which the blood flows in arteries decreases as it travels to veins and finally capillaries. Based on this statement, which among the three are the narrowest blood vessels?

1. Veins
2. Arteries
3. Capillaries

Q. The graph shows changes in blood pressure in the aorta over time. Which letter would indicate when ventricular systole is occurring ?

1. W
2. X
3. Y
4. Z

Q. Blood flows in arteries in spurts and is under pressure. Give reason.

Q. Assertion :Blood pressure is arterial blood pressure. Reason: It is measured by sphygmomanometer.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Both Assertion and Reason are incorrect.

Q. Pulse cannot be felt on your wrist and under the neck.

1. False
2. True

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

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

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

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

Q. Choose the parts of the excretory system.

1. Ureter
2. Urethra
3. Brain
4. Urinary bladder
5. Nephrons
6. Arteries
7. Heart
8. Kidney

Q. _________ are known as the suicidal bags of the cell.

1. Mitochondria
2. Vacuoles
3. Lysosomes
4. Centrioles

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Which of the following system is responsible for pumping of blood to all parts of the body?

1. Respiratory system
2. Circulatory system
3. Digestive system
4. Excretory system