(i) Thylakoids: In the grana of the chloroplast in plant cells.
(ii) Organ of Corti: In the endolymph present in the middle concentric layer of cochlea in the internal ear.
(iii) Lenticels: On the older stem of plants.
(iv) Bicuspid value: Between the left auricle and left ventricle.
(v) Loop of Henle: In the medulla part of kidney.