a2zinterviews

21.	Among the following elements, which one is essential for the transmission of impulses in the nerve fibre?
	A.  Calcium
	B.  Iron
	C.  Zinc
	D.  Sodium

22.	Among the given nutrients, milk is a poor source of
	A.  Protein
	B.  Carbohydrate
	C.  Vitamin C
	D.  Calcium

23.	Who are the first time saw bacteria through a microscope made by himself?
	A.  Louis Pasteur
	B.  Anton van Leeuwenhoek
	C.  Robert Hooke
	D.  Robert Virchow

24.	Certain parts of a plant can be bent easily without breaking. This flexibility in certain parts, like leaf and stem, can be attributed to the abundance of
	A.  Parenchyma
	B.  Collenchymas
	C.  Sclerenchyma
	D.  Xylem and phloem

25.	Stem Cell Therapy (SCT) is not useful for the treatment of which one of the following ailments?
	A.  Cancer
	B.  Brain injury
	C.  Vision impairment
	D.  Kidney failure