LIFESCIENC LS 7C PRACTICE
QUESTIONS AND ANSWERS
,1. Choose the correct statement that describes how humans
gain a gut micro- biota:
A) Bacteria can but usually don't colonize the human gut
during birth. B) Humans gain a gut microbiota from the first
foods they eat.
C) Humans gain a gut microbiota from the birthing process.
D) Bacteria colonize the human gut while they are in the
womb: c
2. Milk-oriented Microbiota refers to: A)The presence of
microbes in store bought milk made from dairy cows.
B) The type of baby formula invented that includes human
milk oligosaccha- rides.
C) The enrichment of select microbes during development
that can degrade human milk oligosaccharides.
D) The difference between lactose tolerant and lactose
intolerant human mi- crobiot: c
,3. Choose the correct statement that describes the
development of the human gut microbiome:
A) Humans are born with the least amount of unique
microorganism species in their gut and have greatest amount
of unique species once they develop in to adulthood
B) .Humans are born with the greatest amount of unique
microorganism species in their gut and as they get older
specific microbial species are eliminated through
competition for resources.
C) Humans have the same type and number of microorganism
species present in their gut at birth and at death.
D) Humans are born with the least amount of unique
microorganism species in their gut, but by the time they
reach an elderly age they have the greatest amount of unique
microorganism species: a
4. Choose the correct statement that refers to human gut
microbiome re- silience after antibiotic exposure: A)
Antibiotics can directly kill all of the bacterial species
, present in the gut and the observed resilience of the mi-
crobiota is due to new bacteria we introduce from the food
we eat or other environmental exposure events.
B) Antibiotics can directly kill most of the bacterial species
present in the gut but the ones that survive the antibiotic
treatment can then increase their population sizes after the
antibiotic treatment is finished.
C) Antibiotics are food sources for beneficial microbes only
and allow their population sizes to increase due to the greater
amount of food that is available for only these beneficial
bacteria.
D) Antibiotics educate the host immune system to defend
against only the
QUESTIONS AND ANSWERS
,1. Choose the correct statement that describes how humans
gain a gut micro- biota:
A) Bacteria can but usually don't colonize the human gut
during birth. B) Humans gain a gut microbiota from the first
foods they eat.
C) Humans gain a gut microbiota from the birthing process.
D) Bacteria colonize the human gut while they are in the
womb: c
2. Milk-oriented Microbiota refers to: A)The presence of
microbes in store bought milk made from dairy cows.
B) The type of baby formula invented that includes human
milk oligosaccha- rides.
C) The enrichment of select microbes during development
that can degrade human milk oligosaccharides.
D) The difference between lactose tolerant and lactose
intolerant human mi- crobiot: c
,3. Choose the correct statement that describes the
development of the human gut microbiome:
A) Humans are born with the least amount of unique
microorganism species in their gut and have greatest amount
of unique species once they develop in to adulthood
B) .Humans are born with the greatest amount of unique
microorganism species in their gut and as they get older
specific microbial species are eliminated through
competition for resources.
C) Humans have the same type and number of microorganism
species present in their gut at birth and at death.
D) Humans are born with the least amount of unique
microorganism species in their gut, but by the time they
reach an elderly age they have the greatest amount of unique
microorganism species: a
4. Choose the correct statement that refers to human gut
microbiome re- silience after antibiotic exposure: A)
Antibiotics can directly kill all of the bacterial species
, present in the gut and the observed resilience of the mi-
crobiota is due to new bacteria we introduce from the food
we eat or other environmental exposure events.
B) Antibiotics can directly kill most of the bacterial species
present in the gut but the ones that survive the antibiotic
treatment can then increase their population sizes after the
antibiotic treatment is finished.
C) Antibiotics are food sources for beneficial microbes only
and allow their population sizes to increase due to the greater
amount of food that is available for only these beneficial
bacteria.
D) Antibiotics educate the host immune system to defend
against only the
