Biology questions
20584 published questions with worked solutions.
- Choose the incorrect statement about SA node.
- Blood that flows from the lungs to the heart is bright red rather than dark red due to
- An increase in cardiac output follows all of the following except
- Which of the following factor(s) does not cause increase in blood pressure?
- Blood leaving the liver and going towards heart is rich in
- Arteries that carry deoxygenated blood are
- The leucocytes contain which of the following in large quantity?
- Red cell count is carried out by
- The main function of the white blood cells in the human intestine system is to
- WBC is true cell due to
- In which, blood circulation starts and ends in capillaries?
- Which of the following factors has little effect on blood flow in arteries?
- The volume of blood that enters into the aorta with each ventricular systole is called
- The frequency of heartbeat in our body is maintained by
- The blood vessel, which supply oxygenated blood to cardiac tissue is
- In a normal adult human, the average stroke volume is
- If due to some injury, the chordae tendineae of the tricuspid valve of the human heart is partially non-functional, what will be...
- Which of the following sequences is truly a systemic circulation pathway?
- Read the statements carefully. 1. Carbonic anhydrase is present in the erythrocytes. 2. In erythrocytes, the carbon dioxide...
- During ventricular systole.