Sample Biology Paper

671 WordsAug 16, 20133 Pages
Sample Paper – 2008 Class – X Subject - Biology Set – 2 [Max. Marks = 80] [Time – one hour and a half] Section – I (40 marks) Answer all the question from this section 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

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