Prokaryotic cells do not have a __________ or membrane bound organelles
Some bacteria are photosynthetic. True or False
Prokaryotic surface to volume ratio is 20 times greater than in a typical human _____
Eukaryotic cells include what 4 kingdoms?
Protozoa, algae, fungi, plants
How many layers surround Gram Negative bacterium?
Most bacterial cell capsules are made of _______
In a bacterial cell the periplasm is the
compartment that lies between the outer and cytoplasmic membrane
Gram-Negative bacteria have an outer cell membrane and are __________to many toxic substances.
Clostridium perfringens is Gram___________.
The cell wall of bacteria is found in Gram negative and Gram ________ bacterium.
Bacilli are ________shaped.
Coccu is ________shaped
Spirillum is ________shaped.
Vibrios are ______shaped.
A species of Vibrio causes __________.
Mycoplasmas lack a cell wall but do not lyse because they do not contain
Pili are _____appendages that allow bacteria to attach to surfaces, bacteria or other cells.
Axial filaments are only found in
A bacterial cell is placed in an extracellular environment that has a higher solute concentration compared to its intracellular makeup. Inside the bacterial cell this lowers its turgor pressure, and the cell will_________.
Solutions A and B are separated by a membrane permeable to water but not permeable to solutes. If solution A has a solute concentration of 0.5 and solutionn B has a solute concentration of 1.5% , solution B is hypertonic to A and gains water by _________
B a concentration _______more molecules are found in one region compared to another.
The diffusion of water across a membrane is
By ______solid material is engulfed by a cell.
By ______liquid material is taken in by the cell.
_________is the expulsion of material from the cell.
Syphillis is caused by a species of _____________.
spirohete (treponema pallidum)
Toxic shock is caused by strains of ______
The most common microbe causing urinary tract infection is__________.
The sum of all chemical activities that take place within an organism
Aerobic metabolism takes place in the presence of _________
The major nutrient that undergoes catabolism is____________
During Glycolysis each glucose molecule starts the process and ends forming 2 molecueles of ______, 2 molecules of ATP, and 2 molecules of NADPH.
Oxidation is the _____of electrons.
Reduction is the ________of electrons
Anaerobic metabolism takes place __________
in the absence of oxygen.
Lactic fermentation by bacteria is used to produce _____________ and buttermilk.
In alcoholic fermentation with yeast, pyruvate is converted to CO2 and __________.
In an oxygen consuming cell like E. Coli or human cell, 1 glucose molecule forms ______ATP molecules.
Strains of S. pneumonia lacking a capsule are _______. Strains of S. pneumonia with a thick capsule can be ____to humans.
During Glycolysis, each glucose molecule produces 4 ATP with a net gain of ______ATP.
The 3 steps of cellular respiration:
glycolysis, Krebs Cycle, Electron transport chain
Main process of Glycolysis
Main process during Krebs cycle
reduce NAD and FAD
When there is lack of oxygen, Pyruvate turns to lactic acid or
Heterotrophic-nutrients from orgainic sources
Autotrophic-make own food thru photosynthesis
movement of molecules from area of low concentration to high concentration
hypertonic- environment has higher concentration of solultes than its interior.
(may result in ________)
Hypotonic-environment has lower concentration of soluutes than cell's interior. May cause cells to _____
equal concentration , no change in water environment
The most resistant bilogical structures known.
Cell wall is made of ______.
swim toward favorable concentrations of dissolved oxygen
bacteria that sense certain chemical and swim toward regions that contain more nutrients and away from regions with toxic chemicals