Question : The duration 19-21 days refers to?
 

Option 1: incubation period of hen’s egg

Option 2: average life-span of a red blood cell in humans

Option 3: the period of menstrual cycle soon after menstruation, during which fertilization is most likely to occur

 

Option 4: period of completion of one schizogony cycle of malarial parasite inside a red blood cell

Question : _________ is the cell organelle in which the biochemical processes of respiration and energy production occur.

Option 1: Mitochondria

Option 2: Chloroplast

Option 3: Ribosomes

Option 4: Nucleus

Question : Blood fails to clot while flowing in the blood vessel because of the presence of 

Option 1: Heparin

Option 2: Prothrombin

Option 3: Haemoglobin

Option 4: Hirudin

Question : The cells which are responsible for the production of antibodies are:

Option 1: red blood cells

Option 2: neutrophils

Option 3: lymphocytes

Option 4: platelets

Question : The old and worn-out red blood corpuscles are destroyed in

Option 1: Liver

Option 2: Stomach

Option 3: Bone marrow

Option 4: Spleen

Question : Directions: If Blue means Pink, Pink means Green, Green means Yellow, Yellow means Red and Red means White, then what is the colour of turmeric?

Option 1: Red

Option 2: Green

Option 3: Pink

Option 4: Yellow