Quiz 5

Question 1

In the light dependent reactions of non-cyclic oxygen is phosphorylation, what serves as the electron donor?

Answer 1

Water

Question 2

In the light dependent reactions of non- cyclic oxygenic phosphorylation what is produced as waste?

Answer 2

Oxygen

Question 3

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

Answer 3

All the above

Question 4

The light dependent reactions (Calvin Benson cycle) of photosynthesis consume _____ molecules of ATP and ____ molecules of NADPH to produce one molecule of glucose.

Answer 4

18;12

Question 5

What is the purpose of the light independent reactions (Calvin Benson cycle) of photosynthesis?

Answer 5

All the above

Question 6

What is the carbon source for the light independent reactions of photosynthesis?

Answer 6

CO2

Question 7

Which of the following use CO2 as their carbon source?

Answer 7

Autotrophs

Question 8

Which of the following use sunlight as their energy source?

Answer 8

Phototrophs

Question 9

Humans belong to this group:

Answer 9

Chemoheterotrophs

Question 10

Bacteria belong to this group:

Answer 10

All of them

Question 11

Plants belong to this group:

Answer 11

Photoautotrophs

Question 12

Which of the following groups includes the normal microbiota of humans?

Answer 12

Mesophilies

Question 13

Which of the following would most likely be found living in the hottest parts of the hot springs in Yellowstone national park?

Answer 13

Hyperthermophiles

Question 14

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?

Answer 14

Psychrophiles

Question 15

Which of the following includes common human pathogens?

Answer 15

Mesophilies

Question 16

Which of the following includes the organisms we are currently growing in the microbiology lab?

Answer 16

Mesophilies

Question 17

Which of the following would most likely be responsible for food spoilage inside your refrigerator at home?

Answer 17

Halophilies

Question 18

Which of the following phenomena is responsible for the preservation of salt-cured and sugar-cured meats from bacterial spoilage?

Answer 18

Plasmolysis

Question 19

Using salt or sugar is effective in preserving meats from bacterial spoilage because it creates a ______ environment that prevents the growth of bacteria.

Answer 19

Hypertonic

Question 20

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?

Answer 20

Superoxide radical and hydroxyl radical

Question 21

Which of the following would be considered an organic growth factor for humans?

Answer 21

Essential amino acids and essential fatty acids

Question 22

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?

Answer 22

Complex

Question 23

Which of the following is the best method for preserving bacterial cultures of mesophilies for a few weeks?

Answer 23

Storage in a standard refrigerator

Question 24

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?

Answer 24

A black butt