Formatting page ...
GRADE: X MARKS: 80 II - TERMINAL EXAMINATION BIOLOGY TIME :02.00 h DATE: 16 Nov 2022 SECTION A (Attempt all questions from this Section.) Question 1 Select the correct answers to the questions from the given options. (Do not copy the question.Write the correct answer only) : [15] (i) The part of the human eye where the rods and cones are located is: (a) Iris (b) Retina (c) Sclera (d) Choroid. (ii) The outermost layer of the meninges of the brain: (a) Arachnoid (b) Piamater (c) Duramater (d) Pericardium. (iii)Urine is carried from urinary bladder to the exterior by: (a) Ureter (b) Uterus (c) Urethra (d) Umbilical cord. (iv)A muscular wall is absent in : (a) Capillary (b) Arteriole (c) Venule (d) Vein. (v) Cytokinins are predominantly present in: (a) Meristematic tissues (b) Permanent tissues (c) Endodermis (d) Epidermis. (vi)The grey matter of cerebrum mainly consists of: (a) Axons (b) Cytons (c) Dendrites (d) Both a and b. (vii) Valves are found in veins to check the backflow of blood flowing under: (a) Low pressure (b) High pressure (c) Atmospheric pressure (d) No pressure. (viii) Hormone that delays ageing in plants: (a) Gibberellines (b) Cytokinin (c) Abscisic acid (d) Ethylene. (ix)Artificial ripening of fruits is carried out by : (a) Auxins (b) Kinetin (c) Ethylene (d) Creatine. (x) Which of the following is NOT a true statement about the placenta? (a) It is an organ that is found in all species. (b) It attaches the fetus to the uterine wall. (c) It provides nutrients to the fetus (d) It allows the fetus to transfer waste products to the mother s bloodstream (xi)On which day of the menstrual cycle does ovulation take place? (a) 5th day (b) 28th day (c) 14th day (d) 1st day. (xii) The defect of the human eye caused due to the uneven surface of the cornea. (a) Myopia (b)Hyperopia (c)Astigmatism (d) Presbyopia (xiii) The pigment present in the choroid layer is ---------------. (a)Haemoglobin (b)Melanin (c)Urochrome (d) Bilirubin (xiv) The leaf is boiled in the specific solution over a water bath (a) To destroy chlorophyll content of leaf (b) To destroy all enzymes present in leaf (c) To destroy all food stored in the leaf (d) To destarch the leaf Question 2 (i) Name the following: [5] (a) The statistical study of human population. (b) One gaseous compound that depletes the ozone layer. (c) Inability to see due to opacity of the lens.. (d) Norms applicable for automobile. (e) The mineral constituent of chlorophyll. 1
|
