1. 1. Explain the functions of the following eukaryote cell organelles: i.Mitochondria ii.Ribosomes iii. Golgi body iv. Endoplasmic reticulum (4 ans.x 5 marks=20 [20 marks/markah]

2. 2)Describe briefly the mode of locomotion in bacteria.[20 marks/markah] 3)Compare the cell walls of gram positive and gram-negative bacteria. [20 marks/markah] 4)One of plasma membrane function is to separate the cell from its environment. Discuss the arrangement of a prokaryotic plasma membrane structure with relation to the stated function. [20 Marks/Markah]

3. 5)Explain how does the cell membrane control the passage of nutrients and substances into and out of the cell. [30 Marks/Markah] 6) Why Gram staining cannot be used on Mycobacterium leprae? If Gram staining were done towards this bacterium, what would the Gram reaction be? [20 marks/markah] 7)Describe the FOUR functions of plasma membrane in the cell structure of microorganisms. [20 marks]

4. 8)Explain the characteristic of the bacteria, archaea and eukarya domain [30 Marks/Markah]