ICSE Class X Biology Sample Paper (12). 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.
Section – I
Question – 1.
(a) Choose the most appropriate answer :
(i) Human stature is the example of :
(p) Polygenic trait (q) Bigenic trait (r) Monogenic trait (s) Codominance
(ii) The rate of transpiration increases with :
(p) increase in humidity of air (q) increase in wind velocity
(r) reducing light intensity (s) decrease in wind velocity
(iii) Development of secondary sexual characters in human males is promoted by :
(p) ADH (q) oestrogen (r) testosterone (s) ACTH
(iv) Which of the following is not a method of birth control :
(p) amniocentesis (q) vasectomy (r) contraceptive pills (s) tubectomy
(v) Which of the following diseases are infectious :
(p) Deficiency diseases (q) Communicable diseases
(r) Degenerative diseases (s) Allergies.
(b) Name the following :
(i) Disorders due to fault in chromosome,
(ii) Division which brings about vegetative growth,
(iii) The process of attachment of fertilized ovum to uterine wall,
(iv) The cells of retina which differentiate colour,
(v) The process in which water absorption needs metabolic energy.
(c) Find if the following statements are true (T) or false (F) :
(i) Snapdragon gives the example of intermediate expression,
(ii) When cell is placed in a solution higher concentration, water diffuses out of the cell.
(iii) Hormones can be proteins, amino acids and steroids,
(iv) The cutting of spermatic duct in male is called tubectomy,
(v) NICD in Lucknow is seriously engaged in doing research on infectious diseases.
(d) Complete the following statements by choosing the correct alternative out of those given within brackets.
(i) Vaccine is dead or weakened _________ [drug / medicines / microbe]
(ii) Cell of follicle produce ____________ [oestrogen / testosterone / androgen]
(iii) The middle ear is filled with ________ [air / water / gas]
(iv) The splitting of water results in the release of _______ [oxygen / water / oxygen and water]
(v) The number of chromosome in human being is _________ [40, 46, 48]
(e) Define the following :
(i) Meiosis, (ii) Transpiration, (iii) Blind spot, (iv) myometrium, (v) Antiserum.
(f) Differentiate between the following :
(i) X–linked and Y–linked inheritance,
(ii) Turger pressure and wall pressure,
(iii) J–shaped curve and S–shaped curve,
(iv) Active and Passive Immunity,
(v) Communicable and non-communicable diseases.
(g) Give reason for the following :
(i) The rate of transpiration increases in hot and dry weather.
(ii) Grapes shrink when kept in honey.
(iii) We could not smell the perfumes on our clothes while a person approaching us still perceives its smell.
(iv) Thyroxine may be administered to young children who show symptoms of cretinism.
Please click below link ICSE Class X Biology Sample Paper (12).