Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
BIOLOGY SCIENCE Paper -3 (Two hours ) Answers to this Puper must be v riuen on the puper provided ,sepuratelt. You,,*illnot be allov,ecl to \\rit( during theJirsl l5 minufe.;. This time is to be spem iri reoLiittg the Question Paper. The time given at the head o-/'this Pap,.'t Attempt all questionsfrom Sectiot I iiie time allov,ed.for writing the ansv,:ers. odonyfour questions from Section II. TIE intended marks for questians or ftwts of questions are given in brackets I J. SECTIO\ I (-10 llarks) .1{t€nt:i oll qi,estions.fron rhi' .\ection (i) (ii) (iii) The part of the brain associared n'ith memor\'. The ear ossicle which is attached to the tlmpanum The type of gene, which in the lrresercc ot' a contrasting alleie is not expressed. (iv) The hormone secreted br islets of langerhans. (v) The process of conversion of ADP into ATP during photosynthe sis. (b) State the main tunction of the t5] iollos ing: (i) (ii) Eustachian tube. (iii) Suspensory ligament of the .'r c Cerebrospinal.fluid. (ir) Sperm duct. (v) Lenticels. (c) f51 L*1 Copy and complete the follou,ing b1 tiliing in the blanks 1 to 5 rlith appropriare words: The human female gonads are or,'aries. A maturing egg in the ovar,v is present (i). in a sac of cells called enlarges and gets filled with a As the egg gro\\s larger, the follicle t'luid and is now called (2) the follicle. The process of releasing the egg fiom the ovary is called This paper consists of 10 printed pages. Tl4 523 @ Cop.rright resen'ed Turn 0ver The antibiotic penicillin is obtained from: A. B. C. D. (v) Bacteria. Virus. Fungus. 'fhe site of maturation of human sperns is the: A. B, C D. (h) Protozoan. Seminiferous tubule. Interstitial cells. Epididymis. Prostate gland. t5l State the exact location of the follou'ing: (i) Tricuspid valve. ( ii) Amnion. ( iii) Yellow spot. (iv) Seminal vesicle (v) Adrenal gland. i) SECTION II i (40 Marks) Attempt any four questions from this Section Question 2 (a) Diff'erentiate between the following pairs on the basis of u'hat is mentioned within brackets: (i) (ii) (iii) (iv) (v) Spinal nerves and Cranial nerves (Number of nerves). Near vision and Distant Vision (shape of the eye lens) Corpus callosum and Corpus luteum. (function). Turgor pressure and wall pressure. (Explain) Disinfectant and Antiseptic (Definition). 4 Ti4 523 I I tsl (b) of The diagram below represents the simplified palhway of the circulation blood. study the same and answer the questrons that follow: (r) Name the blood vessels labelled (ii) State the and 2. finction of blood vessels labelled 5 and 8' nce of the blood vessel labelled 6? (iii) (iv) I Which blood vessel will contain a high amount of glucose and amino acids after a meal? (v) Draw a diagrarn of the ditrerent blood cells as seen in a sme4r of human tsI Question 3 (a) A candidate in order to sludy the process of osmosis has taken 3 potato cpbes 24 and put them in 3 different beakbrs containing 3 different solutions. Aftsr hours, in the first beaker the potato cube increased in size, in the second beaker Tt4 523 Tum Over l "'-