BODY FLUIDS AND CIRCULATION
1. The blood test report of a patient is given below:
RBC 5.5 million/mm3
Platelet 250000 /mm3
a. Which constituent of his blood is abnormal?
b. What is the normal function of that constituent?
2. Observe the flowchart and answer the questions given:
a. Redraw the flowchart correctly.
b. What will happen if the SA node is not working properly?
1. a) Identify WBCs marked as a1, b1, c1 and d1. (2)
b) What is the normal percentage of the WBC marked as b1? (½)
c) Categorise the above WBCs into granulocytes and agranulocytes. (½)
1. Result of a project study related to the circulatory disorders in an area is given below.
a. What is your observation? (½)
b. Name any one circulatory disorder and its characteristics. (1½)
c. Suggest two measures to avoid these disorders. (1)
1. Identify the wrong statement and rewrite in correct form.
a. ‘O’ group is known as universal recipient
b. AB group blood has no antibodies.
c. Blood normally contains 150000 to 350000 platelets /mm3
d. Open circulation is present in arthropods & molluscs. (1)
2. Match the following (2)
i. Basophil - Phagocytosis
ii. Lymphocyte - Inflammatory reaction
iii. Neutrophil - Associated with allergic reaction
iv. Eosinophil - Secrete antibodies
- Helps in blood coagulation
- Oxygen transport
1. If a person having blood group A is given blood transfusion of blood group B by mistake, what will be its effect? (1)
2. Stethoscope is an instrument which is used to detect the sounds of the heart.
a. Mention the two sounds of the heart. (1)
b. Give the causes of heart sound. (1)
1. The blood pressure of a person is shown as 170/130 mm Hg. What would be his disease? How it affects his body? (1)
2. Observe the figure and answer the question.
a. Name the nodal tissue A and B (1)
b. Why A is called pacemaker? (1)