BIO 107 LAB - UNIT 1 / EXAM 1 –
CSUN QUESTIONS AND ANSWERS
what could explain the gradual consumption of oxygen even though no glucose had
been added yet - Correct Answers -the cells had to adjust to the new environment they
were in
if the DO levels drop by .5 mg/l in a period of 1 min, and by 1.0 mg/l during the following
2 min, do those represent different rates of o2 consumption? - Correct Answers -no they
are not different rates, they increased by .5 each minute
what might be responsible for the delay in the oxygen consumption when it was injected
with glucose? - Correct Answers -the bacteria had to adjust and turn on the genes that
would utilize the glucose
if the culture grew and increased in number significantly how would oxygen
consumption be affected - Correct Answers -the oxygen consumption would increase
significantly
what is the name of the bacteria we will be studying - Correct Answers -E. coli
We say that an organism using oxygen is ______ and one not using oxygen is
________ - Correct Answers -aerobic, anaerobic
which of the following best describes an atom or compound that is highly
electronegative - Correct Answers -an atom or compound that is good at capturing
electrons
where are the different electron carriers located if the organism is a eukaryote - Correct
Answers -mitochondrial membrane
Once electrons are boosted to a high energy level and passed onto the electron
transport chain, new electrons are introduced into the chlorophyll molecule (True or
False)? - Correct Answers -True
For plants that are rooted in soil, the root cells located in the soil, away from sunlight are
photosynthetic and undergo photosynthesis (True or False)? - Correct Answers -False
Chloroplast organelles generate __________ while mitochondria organelles consume
__________ - Correct Answers -oxygen, oxygen
CSUN QUESTIONS AND ANSWERS
what could explain the gradual consumption of oxygen even though no glucose had
been added yet - Correct Answers -the cells had to adjust to the new environment they
were in
if the DO levels drop by .5 mg/l in a period of 1 min, and by 1.0 mg/l during the following
2 min, do those represent different rates of o2 consumption? - Correct Answers -no they
are not different rates, they increased by .5 each minute
what might be responsible for the delay in the oxygen consumption when it was injected
with glucose? - Correct Answers -the bacteria had to adjust and turn on the genes that
would utilize the glucose
if the culture grew and increased in number significantly how would oxygen
consumption be affected - Correct Answers -the oxygen consumption would increase
significantly
what is the name of the bacteria we will be studying - Correct Answers -E. coli
We say that an organism using oxygen is ______ and one not using oxygen is
________ - Correct Answers -aerobic, anaerobic
which of the following best describes an atom or compound that is highly
electronegative - Correct Answers -an atom or compound that is good at capturing
electrons
where are the different electron carriers located if the organism is a eukaryote - Correct
Answers -mitochondrial membrane
Once electrons are boosted to a high energy level and passed onto the electron
transport chain, new electrons are introduced into the chlorophyll molecule (True or
False)? - Correct Answers -True
For plants that are rooted in soil, the root cells located in the soil, away from sunlight are
photosynthetic and undergo photosynthesis (True or False)? - Correct Answers -False
Chloroplast organelles generate __________ while mitochondria organelles consume
__________ - Correct Answers -oxygen, oxygen
