Topic _____________________________ What is the definition of a Bacteria are __________________ Organisms bacterial cell? Pro: _______________ or ________________ Karyon: ____________ or ________________ They are ____________-celled organisms Has _____________ DNA; often has _____________ DNA that helps code for genes to __________ _____________ (e.g., _______________ _____________) What is the definition of a A virus is a __________________, ______________, virus? ______________ entity composed of a _________ _________ core surrounded by a ______________ coat. Below the resolution of a _______________ Relies on a ____________ Does not have the properties of cellular ________ What are the differences in size between bacteria and viruses? Bacteria can be measured in ________________ Viruses are measured in _____________________ Comparing and Contrasting Bacteria and Viruses: Draw a Venn Diagram Below, Comparing and Contrasting Bacteria and Viruses Label the following image, as you take notes from the PowerPoint: What are the two 1. ___________________: Cell walls with domains or groups of bacteria? ______________________ (made up of types of _____________ and __________ bonds) 2. ______________________: Cell walls _________ peptidoglycan. Adapted to ______________ environments (extremely _______ and cold, ____________, without ____________, etc.) What are the basic _______-shaped (Bacilli) shapes of bacteria? o Bacillis anthracis ( _________________) o Yersinia pestis (____________ ________) _________-shaped (Vibrios) o e.g., ____________ ______________ Spherical (_______________) o ___________________, Staphylococcus Spiral (_________________) o Treponema pallidum (______________) Bacterial Staining: What is Gram-positive? Gram positive: Retains the ____________ of _____________ dye in the __________________ layer. Infections of this kind can be treated by ________________, such as _____________ Bacterial Staining: What is Gram-negative? Gram-negative: Will _______ pick up the violet dye Infection of this type must be treated by a ___________ spectrum _______________ such as ciprofloxacin What are the different DNA replicates and _____________ strategies for bacterial divides growth and reproduction? __________ Fission: _____________ division _________________: “Sexual” reproduction; Sex __________ extends between bacteria and ___________ DNA is _________________ from one bacterium to another _____________ Formation: Occurs when growth conditions are ________________; an _______________ is a “spore” with a thick internal wall of membrane that encloses and _________________________ What are the types of viral 1. _______________ infection infections? 2. __________________ infection What are the steps to a lytic infection? 1. _______________of virus to _________ cell 2. _______________ of viral __ __ __ into cell 3. _______________ of viral __ __ __ and synthesis of _____________ capsule using cellular “_____________”(__ __ __, __ __ __, polymerases, ________________, etc.) 4. ________________ of new viruses inside __________ cell 5. New viruses “_________” the host cell and are _____________ for further infection What are the characteristics of lytic infections? What are the steps to a lysogenic infection? 1. __________-acting 2. Symptoms emerge within ____ - ____ hours 3. Examples: _____________, _______-_______ 1. Virus attaches and __________ its __ __ __ inside host 2. Viral __ __ __ attaches to the host __ __ __ (____________) 3. The viral DNA lies “____________” and only replicates each time the cell _____________ 4. ______________ or other “factors” cause the infection to progress to the “_________” phase What are the characteristics of a lysogenic infection? 1. __________ - acting: Viral DNA can lie “__________” for many years as ___________ 2. The hosts are “symptom-free” during ______________ 3. Infection is __________-acting when the infection progresses to the “___________” phase. 4. Example: _________, _________________ Before you continue to the “Body’s Defenses,” reflect on the flowchart you created while watching Holly Jones Gets the Flu. Recreate that flowchart in the space provided below, starting with non-specific defense (like skin) and ending up with antibodies and memory cells. SKIN Your Body’s Defense Nonspecific Defense Mechanisms 1. First Line of Defense ___________ ______________ Membranes Secretions of _______ and ____________ Membranes 2. Second Line of Defense Specific Defense Mechanisms What is the first-line respiratory defense __________________ White blood cells __________________ proteins The _________________ response 3. Third Line of Defense (involves the ____________ system) ____________________ ___________________ 1. ___________ producing cells trap ____________ before entering the _________ 2. ___________ expel trapped microbes and mucus into the __________ (windpipe) What proteins are involved in the second- Anti-microbial proteins: __________________ Digest the cell __________ of many _______________ line of defense Found in ________, _________ and ____________ secretions The Second Line of Defense: ______________________ Response Label the following image according to the PowerPoint The Third Line of Defense: The __________________ System Label the following image according to the PowerPoint What are the specific White Blood Cells (_________________): players in the second line 1. ________________ of defense? 2. Neutrophils 3. ______________ 4. _______________ 5. _________________: Develop __ and __ Cells Collectively, all of their functions are to ___________ __________________ What are the steps to the differentiation of B and T Cells? 1. A __________ cell is produced in the _________ __________ or in the fetal ________ 2. That stem cell ________________ to become a ___________________ stem cell. 3. It can become a ___ cell, or 4. Go to the _____________ to become a ____ cell. 5. Both B and T cells will go to the __________________ tissue (__________ nodes, ____________, blood and lymph) to await their role in your ______________ response.