Term
|
Definition
| A dome shaped rock made of thin layers of sediment. |
|
|
Term
| How old is the planet earth believed to be? |
|
Definition
|
|
Term
| What molecule was first beleived to code hereditary information? |
|
Definition
|
|
Term
| List the four stage process they believe explains the development of cells on Earth. |
|
Definition
1. small organic molecules like amino acids are created 2. small molecules combine to create larger more complex molecules 3. molecules have a mechanism for copying themselves 4. complex molecules are encapsulated in membranes |
|
|
Term
It is believed life first appeared in one of two locations on Earth. Name the two possible locations: |
|
Definition
1. Either shallow water, or moist sediments on land 2. Deep sea vents |
|
|
Term
Classification of bacteria that are believed to be the oldest are called: |
|
Definition
|
|
Term
Name the two domains of bacteria: |
|
Definition
|
|
Term
| Bacteria that live in very dry, very hot, or very acidic environments are called: |
|
Definition
|
|
Term
| Give two examples of environments where you might find extremophiles living: |
|
Definition
oxygen free very acidic very hot high levels of salt |
|
|
Term
| An environment that is absent of oxygen is called: |
|
Definition
|
|
Term
Name 2 things that make archaea different from bacteria: |
|
Definition
1. DNA/RNA structure 2. enzymes 3. cell wall structure |
|
|
Term
| The gram stain shows differences in ____________ of a bacteria. |
|
Definition
|
|
Term
| The term cocci means that the bacteria are |
|
Definition
|
|
Term
| The term bacillus means the bacteria is |
|
Definition
|
|
Term
| The term spriochete indicates the bacteria is: |
|
Definition
|
|
Term
True/False:
Bacteria are found living in all different types of environments/habitats. |
|
Definition
|
|
Term
What would a bacterial cell look like if it was Gram stained? |
|
Definition
Gram positive will be purple Gram negative will be pink |
|
|
Term
What name is given to the bacterial shapes in the following picture?[image] |
|
Definition
1. Bacillus 2. cocci 3. Spriochete |
|
|
Term
| Name the four modes/methods of nutrition found in bacteria: |
|
Definition
1.photoautotroph, uses light to produced own food 2. chemoautotroph, uses a chemical to produce own food 3. photoheterotroph, needs light but does not make its own food 4. chemoheterotroph, needs a chemical but does not makes its own food |
|
|
Term
| Name 3 ways bacteria can increase genetic variation: |
|
Definition
1. random mutation 2. transformation 3. conjugation |
|
|
Term
| Name three things bacteria help recycle through the environment: |
|
Definition
1. nitrogen 2. carbon 3. oxygen |
|
|
Term
| Name three things bacteria are helpful for: |
|
Definition
1. bioremediation 2. food production such as cheese, wine, yogurt, sauerkraut 3. sewage treatment 4. decomposition of organic matter |
|
|
Term
|
Definition
| a bacteria or other microbe (fungi, protist, or virus) that causes a disease. |
|
|
Term
|
Definition
| toxins secreted by the bacterial cell that can destroy the cell or stop cell functions |
|
|
Term
|
Definition
| part of the cell wall that causes an organism's immune system to respond |
|
|
Term
| Give three examples of infections caused by bacteria: |
|
Definition
tuberculosis strep throat e coli or samonella - food poisoning |
|
|
Term
| Give three examples of way you might contract or come into contact with a pathogen: |
|
Definition
1. inhale (breathe it in) 2. sexual contact 3. bites 4. in food source 5. contact with pathogen directly |
|
|
Term
| What is the best defense against bacterial infections? |
|
Definition
1st =Washing your hands 2nd= clean drinking wter |
|
|
Term
|
Definition
Life cycle of a virus that results in host cell rupturing and releasing new viruses |
|
|
Term
|
Definition
life cycle of a virus that ends in cell returning to lytic cycle Involves host cell combining with viral DNA |
|
|
Term
Name the two organic components to a virus: |
|
Definition
|
|
Term
| What do you call a virus that uses RNA instead of DNA for its genetic material? |
|
Definition
|
|
Term
Antibiotics are used to treat infections caused by _____________. |
|
Definition
bacteria *they will not work on viral infections |
|
|
Term
|
Definition
| used to PREVENT a viral infection |
|
|
Term
| HIV is an example of a______________. |
|
Definition
|
|
Term
T/F: Most bacteria are pathenogenic. |
|
Definition
|
|
Term
| How long is it believed bacteria have been on the planet? |
|
Definition
|
|
Term
| What is it called when a species of bacteria no longer can be treated by a drug/antibiotic? |
|
Definition
| antibiotic resistant bacteria |
|
|
Term
| What is a zone of inhibition? |
|
Definition
| The area where bacteria cannot grow or is prevented from growing. |
|
|
Term
| What is the purpose of aseptic technique? |
|
Definition
| To prevent contamination of your samples, materials, yourself, or the transmission of unwanted bacteria. |
|
|
