Kampala Integrated Secondary Schools Examinations Bureau Kamssa Joint Mock Examinations Uganda Certificate Of Education Biology Paper 1

KAMSSA JOINT MOCK EXAMINATIONS BIOLOGY Paper 1 2 hours 30 minutes 1 553/1 BIOLOGY Paper 1 July - August 2025 2½ hours Candidate’s Name: …………………………………………………..……… Signature: …………………………… © 2025 Kampala Integrated Secondary Schools Examinations Bureau Turn Over Uganda Certificate of Education Instructions to candidates This paper consists of seven examination items. It has two sections; A and B. Section A has three compulsory items. Section B has two Parts; I and II. Answer one item from each part. Answer five items in all. Any additional item(s) answered will not be scored. ... .. Index NO 2 Turnover SECTION A ITEM 1 Musoke is a renowned maize farmer in Nakaseke district. His farm covers a large acreage and has been giving him good yields in every harvesting season for a long period of time. While upgrading the tarmac road alongside his farmland, a lot of dust was produced by the heavy machinery used during the process, which was blown by wind into his maize plants that were also at flowering stage. Most of the green maize plants turned brown with time. This greatly affected their productivity and poor yields were got during the harvesting season. Therefore, Musoke encountered a number of losses that season. Learner’s task (a)Mention the major plant organs and processes that were greatly affected by the prevailing conditions. ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… (b) Explain how the prevailing conditions affected the normal functioning of processes in the maize plants. ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… 3 Turnover (c) Explain how the maize plants in Musoke ۥs farm were able to give out some yields despite the challenges encountered. ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… …