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BIOLOGY SCIENCE Paper - 3 III. ANALYSIS OF PERFORMANCE Question 1 (a) Name the following: (i) The part of the brain associated with memory. (ii) The ear ossicle which is attached to the tympanum. (iii) The type of gene, which in the presence of a contrasting allele is not expressed. (iv) The hormone secreted by islets of langerhans. (v) (b) The process of conversion of ADP into ATP during photosynthesis. [5] State the main function of the following: (i) Cerebrospinal fluid. (ii) Eustachian tube. (iii) Suspensory ligament of the eye. (iv) Sperm duct. (v) (c) Lenticels. [5] Copy and complete the following by filling in the blanks 1 to 5 with appropriate words: The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called ___________(1). As the egg grows larger, the follicle enlarges and gets filled with a fluid and is now called the ___________(2) follicle. The process of releasing the egg from the ovary is called ____________(3). The ovum is picked up by the oviducal funnel and fertilization takes place in the _________(4). In about a week the blastocyst gets fixed in the endometrium of the uterus and this process is called ______________(5). (d) [5] Given below are six sets with four terms each. In each set one term is odd and cannot be grouped in the same category to which the other three belong. Identify the odd one in each set and name the category to which the remaining three belong. The first one has been done as an example. Example: Calyx, Corolla, Stamens, Midrib Odd term: midrib Category: Parts of a flower. (i) Haemoglobin, Glucagon, Iodopsin, Rhodopsin. 172
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