ISC Class 12 Biology Sample Paper. Sample papers and question papers for ICSE and ISC students. These question papers have been collected by the best teachers from ICSE and ISC schools. Students should download and practice these papers to gain better marks in examinations.
PART – 1
Q 1 :
(a) Give one significant difference between each of the following :
(i) Absorption spectrum and Action spectrum
(ii) Heart Wood and Sap Wood
(iii) Tranquillizers and Sedatives
(iv) Arteriosclerosis and Atherosclerosis
(v) Myogenic heart and Neurogenic heart
(b) Give the exact location and function of the following :
(i) Tectorial membrane
(ii) Leydig’s cells.
(iii) Stroma
(iv) Mast cells
(v) Pacinian corpuscles.
(c) Answer in brief :
(i) Why does skin become wrinkled in old age?
(ii) Which part of soil water is available to plants for absorption by roots?
(iii) What makes the apical meristem of the root sub-terminal?
(iv) Name the enzyme which catalyses bicarbonate formation in RBCs.
(v) Which form of phytochrome induces flowering in SDP?
(d) Fill in the blanks :
(i) The pigment in red muscle fibre is ………
(ii) Amount of blood pumped by heart per minute is called ………
(iii) Ethylene accelerates ……… of leaves, flowers and fruits.
(iv) The biological name of Tulsi plant is ………
(v) ……… is the causative agent of Cholera.
(e) Give the contributions of the following scientists:
(i) William Roentgen
(ii) Marshall Hall
(iii) Godfrey Houns field
(iv) Munch
(v) Robert Koch
Please click below link ISC Class 12 Biology Sample Paper