Biology and Psychology Quiz

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What is the primary function of haemoglobin in the human body?

To regulate blood pH levels

To carry carbon dioxide from the lungs to the body tissues

To synthesize ATP in the red blood cells

To transport oxygen from the lungs to the body tissues (correct)

What is the molecular weight of haemoglobin?

45.6KDa

75.2KDa

64.5KDa (correct)

89.1KDa

What is the iron content of haemoglobin per 100 grams?

0.447gm/100g

0.547gm/100g

0.347gm/100g (correct)

0.247gm/100g

What is the colour of sulphhaemoglobin?

Green Signup and view all the answers

Which of the following forms of haemoglobin is irreversible?

Sulphhaemoglobin Signup and view all the answers

What is the amount of oxygen that can be carried by one gram of haemoglobin?

1.34ml of oxygen Signup and view all the answers

What is the primary function of haemoglobin in the blood?

To deliver oxygen to the tissues and remove carbon dioxide from the lungs Signup and view all the answers

What is the normal range of haemoglobin concentration in adult males?

13-18 g/dl Signup and view all the answers

What is methaemoglobin?

A variant of haemoglobin with iron in the ferric state Signup and view all the answers

Why is haemoglobin estimation important in blood transfusions?

To study changes in haemoglobin concentration after blood transfusions Signup and view all the answers

What type of blood samples are required for haemoglobin estimation?

Capillary blood from finger prick and intravenous sample in EDTA Signup and view all the answers

What is the main reason for not using liquid anticoagulants in haemoglobin estimation?

They dilute and decrease Hb concentration Signup and view all the answers

What is the normal range of haemoglobin concentration in full-term cord blood?

13-19 g/dl Signup and view all the answers

Which method of haemoglobin estimation is based on the measurement of the O2-carrying capacity of Hb?

Gasometric method Signup and view all the answers

What is the purpose of the WHO Haemoglobin Color Scale?

To compare the color developed with a printed scale of colour Signup and view all the answers

In which type of laboratories is the gasometric method used?

Referral or research laboratories Signup and view all the answers

What is the range of normal specific gravity of blood?

1.048-1.066 Signup and view all the answers

Which method of haemoglobin estimation is used only for research purposes?

Chemical method Signup and view all the answers

What is the primary factor that determines bleeding time?

Integrity of platelets and vessel walls Signup and view all the answers

What is the normal range of clotting time?

3-10 minutes Signup and view all the answers

What is the purpose of using a sterile lancet in Duke's method?

To prevent infection Signup and view all the answers

What is the significance of mopping the blood with a filter paper in Duke's method?

To measure bleeding time Signup and view all the answers

Which of the following conditions is associated with a prolonged bleeding time?

Haemophilia Signup and view all the answers

What is the purpose of using rectified spirit in Duke's method?

To disinfect the finger tip Signup and view all the answers

What is the primary function of anxiety in its healthy form?

To help individuals perform at their top form in new situations Signup and view all the answers

Which level of anxiety is characterized by irritability and decreased confidence?

Moderate +2 Signup and view all the answers

What is the recommended intervention for severe anxiety?

Decrease anxiety and stimuli, use simple directions, and medication Signup and view all the answers