Quiz 5 Flashcards
In the light dependent reactions of non-cyclic oxygen is phosphorylation, what serves as the electron donor?
Water
In the light dependent reactions of non- cyclic oxygenic phosphorylation what is produced as waste?
Oxygen
Which of the following occur during the light dependent reactions of non-cyclic oxygenic phosphorylation?
A. ATP is produced
B. NADPH + H+ is produced
C. Chlorophyll loses a pair of electrons
D. All of the above occur
E. Only a and b occur
All the above
The light dependent reactions (Calvin Benson cycle) of photosynthesis consume _____ molecules of ATP and ____ molecules of NADPH to produce one molecule of glucose.
18;12
What is the purpose of the light independent reactions (Calvin Benson cycle) of photosynthesis?
All the above
What is the carbon source for the light independent reactions of photosynthesis?
CO2
Which of the following use CO2 as their carbon source?
Autotrophs
Which of the following use sunlight as their energy source?
Phototrophs
Humans belong to this group:
Chemoheterotrophs
Bacteria belong to this group:
All of them
Plants belong to this group:
Photoautotrophs
Which of the following groups includes the normal microbiota of humans?
Mesophilies
Which of the following would most likely be found living in the hottest parts of the hot springs in Yellowstone national park?
Hyperthermophiles
Which of the following would most likely be found living in the deepest, darkest parts of the ocean where temperature is normally a constant 4 degrees c?
Psychrophiles
Which of the following includes common human pathogens?
Mesophilies
Which of the following includes the organisms we are currently growing in the microbiology lab?
Mesophilies
Which of the following would most likely be responsible for food spoilage inside your refrigerator at home?
Halophilies
Which of the following phenomena is responsible for the preservation of salt-cured and sugar-cured meats from bacterial spoilage?
Plasmolysis
Using salt or sugar is effective in preserving meats from bacterial spoilage because it creates a ______ environment that prevents the growth of bacteria.
Hypertonic
Which of the following toxic forms of oxygen contains an unpaired electron and will therefore steal a single electron from an organic molecule to achieve stability?
Superoxide radical and hydroxyl radical
Which of the following would be considered an organic growth factor for humans?
Essential amino acids and essential fatty acids
Which of the following is a type of growth medium that is made from digest of yeast, meat, plants to provide vitamins and organic growth factors for microbes that will be grown on it?
Complex
Which of the following is the best method for preserving bacterial cultures of mesophilies for a few weeks?
Storage in a standard refrigerator
If an organism is capable of producing H2S by reducing sulfur what would you expect to see in a TSI agar slant after the organism has grown in the medium for two days at an appropriate temperature?
A black butt
