Biology questions
20584 published questions with worked solutions.
- Haemoglobin is
- The chief function of the serum albumin in the blood is to
- Leucocytes are colorless due to
- Which of the following organs can be called a sort of 'blood bank'?
- Lymphocytes (20-25%) are of two major types, B and T-forms. They are responsible for
- Platelets are
- Clotting disorders occur mainly due to the reduction in the number of
- Study the following statements regarding blood coagulation and identify the incorrect ones.
- According to Cascade theory of blood clotting, how many factors are required in the process of blood clotting?
- Which of the following four components of the blood are necessary for clotting?
- Which among the following is the principal cation in the human blood?
- Mammalian heart is
- Oxygenated blood is carried by which of the following?
- Autoexcitable fibres/nodes are called
- An oval depression called fossa ovalis is seen in
- In humans, blood passes from the postcaval to the diastolic right atrium of heart due to
- Which chamber of the human heart has the thickest muscular wall?
- Arteries are best defined as the vessels, which
- The vein that does not directly open into the heart is
- Leakage of back flow of the blood from _______ is prevented by atrioventricular valve. Choose the correct option.