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ST . JOSEPHS BIOLOGY SECTION A Q1: A.name: i)a specific part of chromosome that attaches to spindle fibres during cell division. ii)process by which water absorbed by the roots is conducted upwards in the plant body. iii) organ of urea production in the body. iv)part of human brain that helps in temperature regulation of the body. v)inner lining of uterus. b.identify the odd one and state the category to which the other 4 belong: i) iodine, phenol, formalin, lime, DDT. ii)G1 phase, G2 phase , S phase, G3 Phase, M phase. iii) xylem, cortex, phloem, endodermis, root hair. iv)sweat, saliva, tears, mucus, HCl. v)luteal phase, phottochemical phase, follicular phase, menstrual phase, ovulatory phase. c. state the most important function: i) pedigree chart ii) hidathodes iii) afferent arterioles iii) hormonal contraceptive iv) seminal vesicle d. mention the exact location : i) isthmus ii) leydig cells iii) corpus callosum iv) pulmunory semilunar valve v) renal capsule e.choose the corect answer : 1. meiotic cell division is observed in___________. (liver cells, anther cells, meristematic cells, epithelaial tissue) 2. ____________ vaccine is given to build a immunity against TB. (salks, TAB, BCG, DPT) 3. the difference between birth and death rate is________( natality, mortality, growth rate, population density) 4. source of energy that does not cause pollution is_______(petroleum, nuclear energy, solar energy, wood) 5. wooden doors swell during winter due to_________( imbibition, active transport, plasmolysis, flaccidity)
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