Describe four types of Sexually Transmitted Infections (STIs) common in Tanzania.

1. Describe four types of Sexually Transmitted Infections (STIs) common in Tanzania. (4 mk)

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Explain four causes for decrease in energy from one trophic level to another.

1. Explain four causes for decrease in energy from one trophic level to another. (4 mk)

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Give four mistakes done by a scientist in writing the scientific name of maize as zeaMays.

1. Give four mistakes done by a scientist in writing the scientific name of maize as zeaMays. (4 mk)

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Complete the missing information in the table that shows the amount of ATP produced when one molecule of glucose is completely oxidized by naming the process/products represented using letters A-H as shown in the table below:

1. Complete the missing information in the table that shows the amount of ATP produced when one molecule of glucose is completely oxidized by naming the process/products represented using letters A-H as shown in the table below: (4 mk)

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Differentiate between fibrous and globular proteins.

1. Differentiate between fibrous and globular proteins. (4 mk)

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(a)Determine the sex ratios of offspring formed from the union of male and female gametes in F1 generation (b) Explain reasons for ratios obtained in (a) not to be achieved in human population.

1. Determine the sex ratios of offspring formed from the union of male and female gametes in F1 generation (1 mk)
2. Explain reasons for ratios obtained in (a) not to be achieved in human population. (1 mk)

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Suggest four techniques that can be used to ensure proper handling of Laboratory wastes.

1. Suggest four techniques that can be used to ensure proper handling of Laboratory wastes. (4 mk)

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Suggest four strategies that may be employed to solve the problem of students’ massive failure in Biology.

1. Suggest four strategies that may be employed to solve the problem of students’ massive failure in Biology. (4 mk)

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Give the reasons for the Ministry of Education, Science and Technology (MOEST) to reject the idea posed by one of the zones education officers who decided to prepare a Biology syllabus that accommodates peoples` needs of his context.

1. Give the reasons for the Ministry of Education, Science and Technology (MOEST) to reject the idea posed by one of the zones education officers who decided to prepare a Biology syllabus that accommodates peoples` needs of his context. (4 mk)

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Explain why in modern teaching and learning environment teachers’ ability to keep students` progress in electronic spreadsheet and not paperwork is considered as an achievement.

1. Explain why in modern teaching and learning environment teachers’ ability to keep students` progress in electronic spreadsheet and not paperwork is considered as an achievement. (4 mk)

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