Microbiology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Aliquotes | small samples of the culture
🗑
|
||||
| Anabolism | use of energy and building blocks to produce new cellular materials, such as macromolecules
🗑
|
||||
| Anaerobic respiration | bacteria in the abswence of oxygen--utilize nitrate/sulfate as the final electron acceptor
🗑
|
||||
| Autolytic | bacteria that produce enzymes that cause their own lysis or break down
🗑
|
||||
| Binary fission | (cell division) bacterial cells grow by dividing and forming 2 progeny cells that are equal to the original cell
🗑
|
||||
| Catabolism | breakdown of complex materials into building blocks/energy--cells use for synthesis--making more cellular chemicals
🗑
|
||||
| Cell division | (binary fission) bacterial cells grow by dividing and forming two progeny cells that are equal to the original cell
🗑
|
||||
| Chemosynthetic metabolism | bacteria can use salts found in rock as an energy source--require little to grow--generally autotrophs--make organic chemicals from carbon dioxide, chemicals dissolved in water, energy from rocks
🗑
|
||||
| Colony forming unit | CFU--arises from single diluted cell--represents viable bacterial cells--those cells that could grow and form a colony
🗑
|
||||
| Death phase | cells are not receiving sufficient energy or nutrients to maintain viability
🗑
|
||||
| Decline phase | (death phase) cells not receiving sufficient energy or nutrients to maintain viability
🗑
|
||||
| Denature | enzymes unfold when they are boiled and are no longer active
🗑
|
||||
| Dilution | used to determine bacterial cell numbers--dilutions performed at each time point--aliquots spread on petri dishes--incubate--count how many colonies grow--resulting colony count multiplied by dilution factor to know how many bacteria in original sample
🗑
|
||||
| Electron transport chain | consists of a series of carriers in the membrane--carriers use electron-derived energy to pump protons out of cell--creates proton gradient with higher concentration on outside--protons flow back into cell through proteinaceous carrier ATP
🗑
|
||||
| Exponential growth | when bacteria double every constant period of time
🗑
|
||||
| Feedback inhibition | (feedback regulation) mechanisms of gene expression control--bacteria can preclude the need to make thousands of temp. unneeded proteins that would otherwise reduce growth efficiency dramatically
🗑
|
||||
| Fermentation | process of incomplete catabolism of sugars to produce alcohol in wines
🗑
|
||||
| Generation | division or doubling of bacteria
🗑
|
||||
| Glycolysis | in cells utilizing glucose, the glucose is transported to the inside and oxidized
🗑
|
||||
| Krebs cycle | (TCA cycle--tricarboxylic acid cycle) oxygen is used to degrade carbon completely to carbon dioxide, water, ATP, energy-containing electrons--passed on to te electron transport chain
🗑
|
||||
| Lag phase | cells adapting to rich supply of nutrients in preparation for growth
🗑
|
||||
| Log phase | cells start to multiply by doubling every perhaps 30 minutes
🗑
|
||||
| Metabolism | all chemical processes that occur in a cell
🗑
|
||||
| Oxidative phosphorylation | transfer of electrons to oxygen coupled to the synthesis of ATP
🗑
|
||||
| Product | sucrose in reaction
🗑
|
||||
| Pyruvate | six-carbon sugar is converted into two three-carbon acids, called pyruvic acid
🗑
|
||||
| Reactants | (substrates) glucose and fructose in reaction
🗑
|
||||
| Reaction | one enzyme can use the sugars glucose and fructose and combine them to disaccharide sucrose--common table sugar
🗑
|
||||
| Respiration | passage of electrons to oxygen to produce water
🗑
|
||||
| Stationary phase | cells maintain cell number but not able to produce new cells--dying and producing new cells at about the same rate
🗑
|
||||
| Substrates | (reactants) glucose and fructose in reaction
🗑
|
||||
| Total cell count | resulting number of dilutions
🗑
|
||||
| Turbidity | (blank)
🗑
|
||||
| Viable counts | (blank)
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
heatherlvn
Popular Science sets