Chapter 19 Bacteria: Label the bacterial cell below by dragging and dropping the labels in the appropriate boxes. Answer the questions that follow. Cytoplasm DNA Pili Cell Wall Cell Membrane Capsule Flagella Ribosomes 1. What is the function of the pili? 2. What is the term for a cell that does not have a nucleus? 3. What is the term for the extra layer of protection around the bacteria cell? 4. What is the function of the ribosomes? 5. What part of the bacterial cell provides support & rigidity? 6. How does a bacterial cell move? 7. What kingdom are bacteria found in? 8. What part of the cell is made of phospholipids? 9. What are the 2 groups of bacteria? 10. Most bacteria are heterotrophic. What does this mean? The Two Domains of Bacteria Archaebacteria: Fill in the chart below about bacteria types. Indicate the definition of the bacteria and where they are found on the planet. Double click in the box to type in an answer. Bacteria Definition Where are they found? Chemosynthesizers Halophiles Methanogens Thermoacidophiles Eubacteria: Answer the questions below about eubacteria. 1. Which of the 3 types of eubacteria cause disease in humans? 2. What color does gram negative bacteria turn when gram stain is placed on it? 3. What color does gram positive bacteria turn when gram stain is placed on it? 4. a. Look at the pictures to the left. Which types of bacteria has a thicker wall: gram-positive or gram-negative? b. What does this thicker wall allow this bacteria to resist? 5. What function can cyanobacteria perform that allows it to NOT depend on other organism for food? 6. Give an example of a gram-positive bacteria. gram-negative bacteria. Bacteria Shapes: Place the following pictures and descriptions into one of the three groups based on the bacteria’s shape. Drag and drop the picture into the appropriate box. Anthrax LymeÕs Disease Staphylococcus Gonorrhea Spiral Shape Rod Shape Bacillus subt Streptococcus Leptospira Circular Shape Coccus Bacillus Spirilla Swapping of DNA: Drag and drop the type of DNA exchange into the box with the correct description. Transformation Transduction Conjugation 1. The joining of 2 bacterial cells through their pili- they make a channel and exchange DNA. 2. A virus infects a bacterial cell and takes up some of its bacterial DNA. When the virus infects another cell, the bacterial DNA will be injected into that cell. 3. A bacterial cell takes in free-floating DNA from the environment.
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