A fisherman today caught a lot of fish. Briefly explain four (4) methods which will help him to preserve his fish when there is no electricity.

1. Explain one method of preserving fish without electricity. (2 mk)
2. Write the products when glucose molecule and a fructose molecule combine. (0 mk)
3. Explain one method of preserving fish without electricity. (2 mk)
4. Explain one method of preserving fish without electricity. (2 mk)
5. Explain one method of preserving fish without electricity. (2 mk)

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You are given the following basic food substances; meat, rice, peas, castor seeds, bread and margarine. i. Classify them as protein, lipids or carbohydrates and write them in the table below. PROTEINS LIPIDS CARBOHYDRATES

1. Define the following terms: i. Personal hygiene (0 mk)
2. Define Personal hygiene (2 mk)
3. Write one importance of personal hygiene and good manners. (1 mk)
4. Outline one change that occurs in boys at puberty. (1 mk)
5. Classify them as protein, lipids or carbohydrates and write them in the table below. PROTEINS LIPIDS CARBOHYDRATES (4 mk)
6. ii. Good manners (0 mk)
7. Define Good manners (2 mk)
8. Write a second importance of personal hygiene and good manners. (1 mk)
9. Outline a second change that occurs in boys at puberty. (1 mk)
10. Write three (3) importance of personal hygiene and good manners. i. (0 mk)
11. Write a third importance of personal hygiene and good manners. (1 mk)
12. Outline a third change that occurs in boys at puberty. (1 mk)
13. ii. (0 mk)
14. Outline a fourth change that occurs in boys at puberty. (1 mk)
15. iii. (0 mk)
16. Outline a fifth change that occurs in boys at puberty. (1 mk)

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b. Differentiates between saprophytism and symbosis.

1. Complete the table for Deficiency of nutrient in diet: Vitamin C. Write the corresponding Disorder. (1 mk)
2. Differentiate between saprophytism and symbosis. (6 mk)
3. Complete the table for Disorder: Night blindness. Write the corresponding Deficiency of nutrient in diet. (1 mk)
4. Complete the table for Deficiency of nutrient in diet: Iodine. Write the corresponding Disorder. (1 mk)
5. Complete the table for Disorder: Rickets. Write the corresponding Deficiency of nutrient in diet. (1 mk)

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You are given the following basic food substances; meat, rice, peas, castor seeds, bread and margarine. i. Classify them as protein, lipids or carbohydrates and write them in the table below. PROTEINS LIPIDS CARBOHYDRATES ii. Write the colour(s) of the following reagents. The first one is an example. REAGENTS COLOUR OF REAGENTS Sodium hydroxide Colourless Iodine solution Benedict’s solution Sudan III solution Copper II Sulphate solution iii. Give reason, why dilute hydrochloric acid is added when testing non-reducing sugar? iv. Write the products when glucose molecule and a fructose molecule combine.

1. Draw and label the diagram of a variegated leaf as it appeared before the experiment. (2 mk)
2. Classify them as protein, lipids or carbohydrates and write them in the table below. (3 mk)
3. Draw and label the diagram of a variegated leaf as it appeared at the end of the experiment after iodine was added. (2 mk)
4. Write the colour(s) of the following reagents. The first one is an example. (3 mk)
5. Give reason, why dilute hydrochloric acid is added when testing non-reducing sugar? (2 mk)
6. Write the products when glucose molecule and a fructose molecule combine. (2 mk)

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b. A fisherman today caught a lot of fish. Briefly explain four (4) methods which will help him to preserve his fish when there is no electricity.

1. Define food preservation. (2 mk)
2. Food preservation (0 mk)
3. Briefly explain four (4) methods which will help him to preserve his fish when there is no electricity. (0 mk)
4. Define food storage. (2 mk)
5. Food storage (0 mk)
6. Briefly explain four (4) methods which will help him to preserve his fish when there is no electricity. (0 mk)
7. Briefly explain four (4) methods which will help him to preserve his fish when there is no electricity. (0 mk)
8. Briefly explain four (4) methods which will help him to preserve his fish when there is no electricity. (0 mk)

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“KEEP ZANZIBAR CLEAN”. This slogan emphasizes on maintaining the cleanliness of surroundings of the community through proper waste disposal. Write an essay on the above slogan using the following guidelines: -

1. Meaning of waste. (2 mk)
2. Meaning of waste disposal. (2 mk)
3. Types of waste. (3 mk)
4. Five (5) proper ways of reducing waste. (3 mk)

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The following are steps in an experiment to test for the presence of starch in a leaf: c. The forceps was used to dip the leaf in hot water for about 30 seconds. d. The variegated leaf was removed from a hot water. e. The variegated leaf was placed in a boiling tube with methylated sprit then placed in a beaker of boiling water. f. The variegated leaf was removed from methylated sprit and then rinsed in to hot water. g. The variegated leaf was spread on a white tile and then few drops of iodine solution were added on it. i. Write the aim of this experiment.

1. Write the aim of this experiment. (2 mk)

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The following are steps in an experiment to test for the presence of starch in a leaf: c. The forceps was used to dip the leaf in hot water for about 30 seconds. d. The variegated leaf was removed from a hot water. e. The variegated leaf was placed in a boiling tube with methylated sprit then placed in a beaker of boiling water. f. The variegated leaf was removed from methylated sprit and then rinsed in to hot water. g. The variegated leaf was spread on a white tile and then few drops of iodine solution were added on it. ii. Why was the leaf dipped in hot water for 30 seconds?

1. The organelles in the cell which is concerned with respiration. (1 mk)
2. Why was the leaf dipped in hot water for 30 seconds? (2 mk)
3. It is surrounded by tonoplast membrane. (1 mk)
4. Has a tail which enables it to swim to the egg. (1 mk)
5. Can change their shapes so as to engulf and destroy harmful microorganisms. (1 mk)
6. Is made up of non-living materials called cellulose. (1 mk)
7. A group of cells which perform same function. (1 mk)
8. Collection of different tissues work together to perform a certain function. (1 mk)
9. They contain haemoglobin in which oxygen attaches during transportation. (1 mk)
10. They absorb water and minerals from the soil. (1 mk)

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The following are steps in an experiment to test for the presence of starch in a leaf: c. The forceps was used to dip the leaf in hot water for about 30 seconds. d. The variegated leaf was removed from a hot water. e. The variegated leaf was placed in a boiling tube with methylated sprit then placed in a beaker of boiling water. f. The variegated leaf was removed from methylated sprit and then rinsed in to hot water. g. The variegated leaf was spread on a white tile and then few drops of iodine solution were added on it. iii. Give reason, why the leaf was boiled in methylated sprit?

1. Apparatus used for scooping powder or crystalline substances is _____________ (1 mk)
2. Give reason, why the leaf was boiled in methylated sprit? (2 mk)
3. The process by which water evaporates from the plant through the stomata in the leaves is called __________________________________________ (1 mk)
4. Reducing, _________________ and ____________________ are basic principles of waste disposal. (2 mk)
5. Muscles that are found between the ribs are called _____________________ muscles. (1 mk)
6. Protein in the diet is needed for growth and body __________________. (1 mk)
7. The leaves of __________________ plant close when they are touched. (1 mk)
8. In classification ________________________________ is the highest rank order. (1 mk)
9. The study of _________________________________ is known as mycology. (1 mk)
10. Inadequate amount of fibre in the diet lead to ____________________________. (1 mk)

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The following are steps in an experiment to test for the presence of starch in a leaf: c. The forceps was used to dip the leaf in hot water for about 30 seconds. d. The variegated leaf was removed from a hot water. e. The variegated leaf was placed in a boiling tube with methylated sprit then placed in a beaker of boiling water. f. The variegated leaf was removed from methylated sprit and then rinsed in to hot water. g. The variegated leaf was spread on a white tile and then few drops of iodine solution were added on it. iv. Explain why the leaf was dipped in hot water once again.

1. Label part A (1 mk)
2. Label the parts numbered A - F (6 mk)
3. Explain why the leaf was dipped in hot water once again. (2 mk)
4. Label part B (1 mk)
5. What part of the plant body does the diagram represent? (1 mk)
6. Does the diagram represent a monocot or dicot? (1 mk)
7. Label part C (1 mk)
8. Label part D (1 mk)
9. Label part E (1 mk)
10. Label part F (1 mk)

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The following are steps in an experiment to test for the presence of starch in a leaf: c. The forceps was used to dip the leaf in hot water for about 30 seconds. d. The variegated leaf was removed from a hot water. e. The variegated leaf was placed in a boiling tube with methylated sprit then placed in a beaker of boiling water. f. The variegated leaf was removed from methylated sprit and then rinsed in to hot water. g. The variegated leaf was spread on a white tile and then few drops of iodine solution were added on it. v. Draw and label the diagram of a variegated leaf as it appeared before the experiment.

1. List three (3) components of gastric juice of man and state the function of each. (6 mk)
2. List and state the function of one component of gastric juice. (2 mk)
3. Fill in the protein-digesting enzyme(s) for the Stomach. (1 mk)
4. Draw and label the diagram of a variegated leaf as it appeared before the experiment. (3 mk)
5. Complete the table by filling the blank column. (6 mk)
6. List and state the function of another component of gastric juice. (2 mk)
7. Fill in the protein-digesting enzyme(s) for the Duodenum. (1 mk)
8. Fill in the protein-digesting enzyme(s) for the Ileum. (1 mk)
9. List and state the function of a third component of gastric juice. (2 mk)

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The following are steps in an experiment to test for the presence of starch in a leaf: c. The forceps was used to dip the leaf in hot water for about 30 seconds. d. The variegated leaf was removed from a hot water. e. The variegated leaf was placed in a boiling tube with methylated sprit then placed in a beaker of boiling water. f. The variegated leaf was removed from methylated sprit and then rinsed in to hot water. g. The variegated leaf was spread on a white tile and then few drops of iodine solution were added on it. vi. Draw and label the diagram of a variegated leaf as it appeared at the end of the experiment after iodine was added.

1. Write the equation in words. (2 mk)
2. Write an example of a Corm. (1 mk)
3. Write the equation in words. (0 mk)
4. Draw and label the diagram of a variegated leaf as it appeared at the end of the experiment after iodine was added. (3 mk)
5. Name the process which is represented by the equation above. (2 mk)
6. Write an example of a Rhizome. (1 mk)
7. Name the process which is represented by the equation above. (0 mk)
8. Write an example of the following underground storage organ. i. Corm (0 mk)
9. ii. Rhizome (0 mk)
10. List two (2) deficiency signs of potassium for plants. (0 mk)
11. The other name for blue economy is marine economy. Write three (3) blue economy’s priority areas in Zanzibar. (0 mk)

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