Rio Salado BIO 156 Exam 2 QUESTIONS
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WITH ANSWERS |\
Cell Cycle - CORRECT ANSWERS ✔✔the collective series of
|\ |\ |\ |\ |\ |\ |\ |\ |\
intervals and events of a cells life, from the time it forms until it
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
divides.
What are the 4 intervals of interphase in the order they take
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
place? - CORRECT ANSWERS ✔✔G1, G0, S, G2
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What happens in interval G1? - CORRECT ANSWERS ✔✔this is
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
when the cell increases in size and produces molecules required
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
for DNA replication
|\ |\
From which interval would a cell possibly go into interval G0 and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
how long would it stay there? What would it do there? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔if a cell decided to go to G0 it would be after
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
interval G1. Here it would just go about its metabolic business
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
and not prepare to divide. It would stay there temporarily or
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
permanently. If it decided to leave, it would go back to G1 and |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
then progress on to interval S.
|\ |\ |\ |\ |\
What happens in interval S? - CORRECT ANSWERS ✔✔a cell
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
copies it's chromosomes by DNA replication. After this happens
|\ |\ |\ |\ |\ |\ |\ |\ |\
each chromosome consists of two molecules of DNA and they are
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
attached as sister chromatids.
|\ |\ |\ |\
, What happens in interval G2? - CORRECT ANSWERS ✔✔the cell
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
produces proteins and other components that are necessary for
|\ |\ |\ |\ |\ |\ |\ |\ |\
division.
Where does a cell go after interval G2 of interphase? - CORRECT
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ANSWERS ✔✔mitosis |\
What do the built-in checkpoints do in interphase? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔they stop the cycle from proceeding until certain
|\ |\ |\ |\ |\ |\ |\ |\ |\
conditions are met. |\ |\
What divides first, the nucleus or the cytoplasm? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Nucleus, then cytoplasm. |\ |\ |\
What happens in mitosis? - CORRECT ANSWERS ✔✔the nucleus
|\ |\ |\ |\ |\ |\ |\ |\ |\
divides.
What is cytokinesis? - CORRECT ANSWERS ✔✔division of the
|\ |\ |\ |\ |\ |\ |\ |\ |\
cytoplasm
What is a centromere? - CORRECT ANSWERS ✔✔The centromere
|\ |\ |\ |\ |\ |\ |\ |\ |\
holds the sister chromatids together (made of protein)
|\ |\ |\ |\ |\ |\ |\
What is the first stage of mitosis and what happens there? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Prophase. The nuclear envelope breaks
|\ |\ |\ |\ |\ |\ |\
up, the centrosomes split up to opposite sides of the cell, spindle
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
microtubules assemble and bind to chromosomes at the|\ |\ |\ |\ |\ |\ |\ |\
centromere. Think pro - pro at breaking up |\ |\ |\ |\ |\ |\ |\
|\ |\ |\ |\ |\ |\ |\
WITH ANSWERS |\
Cell Cycle - CORRECT ANSWERS ✔✔the collective series of
|\ |\ |\ |\ |\ |\ |\ |\ |\
intervals and events of a cells life, from the time it forms until it
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
divides.
What are the 4 intervals of interphase in the order they take
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
place? - CORRECT ANSWERS ✔✔G1, G0, S, G2
|\ |\ |\ |\ |\ |\ |\
What happens in interval G1? - CORRECT ANSWERS ✔✔this is
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
when the cell increases in size and produces molecules required
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
for DNA replication
|\ |\
From which interval would a cell possibly go into interval G0 and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
how long would it stay there? What would it do there? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔if a cell decided to go to G0 it would be after
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
interval G1. Here it would just go about its metabolic business
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
and not prepare to divide. It would stay there temporarily or
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
permanently. If it decided to leave, it would go back to G1 and |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
then progress on to interval S.
|\ |\ |\ |\ |\
What happens in interval S? - CORRECT ANSWERS ✔✔a cell
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
copies it's chromosomes by DNA replication. After this happens
|\ |\ |\ |\ |\ |\ |\ |\ |\
each chromosome consists of two molecules of DNA and they are
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
attached as sister chromatids.
|\ |\ |\ |\
, What happens in interval G2? - CORRECT ANSWERS ✔✔the cell
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
produces proteins and other components that are necessary for
|\ |\ |\ |\ |\ |\ |\ |\ |\
division.
Where does a cell go after interval G2 of interphase? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔mitosis |\
What do the built-in checkpoints do in interphase? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔they stop the cycle from proceeding until certain
|\ |\ |\ |\ |\ |\ |\ |\ |\
conditions are met. |\ |\
What divides first, the nucleus or the cytoplasm? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Nucleus, then cytoplasm. |\ |\ |\
What happens in mitosis? - CORRECT ANSWERS ✔✔the nucleus
|\ |\ |\ |\ |\ |\ |\ |\ |\
divides.
What is cytokinesis? - CORRECT ANSWERS ✔✔division of the
|\ |\ |\ |\ |\ |\ |\ |\ |\
cytoplasm
What is a centromere? - CORRECT ANSWERS ✔✔The centromere
|\ |\ |\ |\ |\ |\ |\ |\ |\
holds the sister chromatids together (made of protein)
|\ |\ |\ |\ |\ |\ |\
What is the first stage of mitosis and what happens there? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Prophase. The nuclear envelope breaks
|\ |\ |\ |\ |\ |\ |\
up, the centrosomes split up to opposite sides of the cell, spindle
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
microtubules assemble and bind to chromosomes at the|\ |\ |\ |\ |\ |\ |\ |\
centromere. Think pro - pro at breaking up |\ |\ |\ |\ |\ |\ |\
