List of top Life Science Questions on Human physiology

Match the LIST-I with LIST-II
Match the LIST-I with LIST-II
Which of the following are True with reference to rel tubules and collecting ducts?
A. Glomerular capsule possesses podocytes
B. PCT carries simple cuboidal epithelial cells with microvilli
C. DCT carries cells with receptors for ADH and aldosterone
D. DCT carries simple cuboidal cells with microvilli
E. PCT carries simple squamous epithelial cells
The muscle contraction cycle consist of the following steps. Select the correct sequence.
A. ATP hydrolysis
B. Detachment of myosin from actin
C. Power stroke
D. Attachment of myosin to actin to form cross-bridge
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Nervous and Endocrine Systems act together to coordite functions of all body systems.
Reason R: Responses of the endocrine system are often slower but their influence is broader and they regulate all types of body cells.
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Cardiac excitation normally begins in the sinoatrial (SA) node.
Reason R: SA node cells do not have a stable resting potential. They depolarize to threshold spontaneously.
The first sound (S$_1$) 'lubb' is caused by blood turbulence associated with:
Match the LIST-I with LIST-II
Which amino acid is the universal initiator for protein synthesis in eukaryotes?
Which hormone is primarily responsible for the "fight or flight" response in human physiology?
Describe the structure and functions of the human heart.