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Name: _______________________________ Date: _______________ Period: __________ Bacterial Cells and Gram Staining Exercise Your answers must be in complete sentences and must provide enough detail in order to fully answer the question. You may write on this handout, but may need a separate piece of paper to write your answers in. 1.) Draw and label the following bacterial shapes: cocci, bacillus, diplococcic, streptococci, staphylococci, streptobacillus. 2.) Strep throat is caused by streptococcus bacteria. When you go to the doctor with a sore throat, they swab your throat and have you wait for the results of the "culture" to see if you have strep throat. What does the "culture" look like if you have strep throat? 3.) Some bacterial infections are known as "staph infections". What does the name of this illness tell you about the bacteria? 4.) Not all bacteria cause infections in your body. Give an example of a bacteria that always lives inside your body. 5.) How might a capsule contribute to pathogenicity? 6.) What type of bacterial cells would have only a single flagellum? 7.) Axial filaments are found on _______________________________. 8.) Which of the following structures is NOT found in all bacteria? 9.) Porins are present in ______________bacteria because, in these organisms, molecules entering the cell must pass through an extra layer of ___________. 10.) What is the gram stain process? 11.) What is the most studied group of antibiotics that interfere with peptidoglycan? 12.) What color are gram-negative and gram-positive bacteria after performing a gram staining lab? 13.) Explain how antibiotics are active in peptidoglycan synthesis. 14.) Would penicillin work against gram-negative bacteria? Why or why not? Name: _______________________________ Date: _______________ Period: __________ Bacterial Cells and Gram Staining Exercise Your answers must be in complete sentences and must provide enough detail in order to fully answer the question. You may write on this handout, but may need a separate piece of paper to write your answers in. Your answers must be in complete sentences and must provide enough detail in order to fully answer the question. You may write on this handout, but may need a separate piece of paper to write your answers in. 1.) Draw and label the following bacterial shapes: cocci, bacillus, diplococcic, streptococci, staphylococci, streptobacillus. 2.) Strep throat is caused by streptococcus bacteria. When you go to the doctor with a sore throat, they swab your throat and have you wait for the results of the "culture" to see if you have strep throat. What does the "culture" look like if you have strep throat? 3.) Some bacterial infections are known as "staph infections". What does the name of this illness tell you about the bacteria? 4.) Not all bacteria cause infections in your body. Give an example of a bacteria that always lives inside your body. 5.) How might a capsule contribute to pathogenicity? 6.) What type of bacterial cells would have only a single flagellum? 7.) Axial filaments are found on _______________________________. 8.) Which of the following structures is NOT found in all bacteria? 9.) Porins are present in ______________bacteria because, in these organisms, molecules entering the cell must pass through an extra layer of ___________. 10.) What is the gram stain process? 11.) What is the most studied group of antibiotics that interfere with peptidoglycan? 12.) What color are gram-negative and gram-positive bacteria after performing a gram staining lab? 13.) Explain how antibiotics are active in peptidoglycan synthesis. 14.) Would penicillin work against gram-negative bacteria? Why or why not?