Biology Jeopardy

1
Biology Jeopardy
Cell cycle!
True or false
Stem cells
PMAT
Motor cycle
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50
Final Jeopardy
2
10 points
True or False Diffusion over a large distance
is slow and inefficient because it relies on
random movement of molecules and ions
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10 points
True! Diffusion over a large distance is very
inefficient
4
20 points
True or False The cell cycle is divided into 2
phases interphase and mitosis
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20 points
False ! The cell cycle has 3 main stages
interphase, mitosis and cytokinesis
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30 points
True or False in plant cells, cytokinesis begins
with a furrow that pinches off the cell to form
two new daughter cells
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30 points
False! Plant cells are unable to pinch off the
cytoplasm, and must use a cell plate in order to
divide the cells cytoplasm
8
40 points
True or False Stem cells can be only two
different types embryonic or adult
9
40 points
False! Stem cells can now come from 4 different
types Adult, embryonic, umbilical, and IPS
(induced pluripotent stem cells)
10
50 points
True or False During prophase in an onion root
tip cell, centrioles migrate to the poles of the
cell
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50 points
False! Plant cells do not have centrioles - the
spindle apparatus attaches directly to the inside
of the cell wall
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10 points
The stage when the chromosomes are found lined up
at the equator of the cell
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10 points
Chromosomes line up at the equator during
METAPHASE
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20 points
The nuclear envelope breaks down, nucleolus
disappears, and chromosomes finish coiling very
tight occurs during this stage
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20 points
Prophase is when nucleolus disappears, nuclear
envelope breaks down, and chromosomes will finish
coiling tighter
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 30 points
During this phase the sister chromatids begin to
separate away from each other, and are now called
individual chromosomes
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30 points
Anaphase
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40 points

• By the end of prophase, which of these has
  occurred?
• Sister chromatids are separated
• The spindle is beginning to disintegrate
• The cell membrane has begun to pinch inward
• The nuclear membrane has disappeared

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40 points

1. Sister chromatids are separated
2. The spindle is beginning to disintegrate
3. The cell membrane has begun to pinch inward
4. The nuclear membrane (envelope) has disappeared

20
50 points

• Prokaryotes like bacteria divide by binary
  fission which is asexual reproduction in which
• The nucleus divides into two nuclei
• The number of chromosomes in the cell is reduced
• A cell divides into two cells with identical
  genetic information
• Spindle fibers attach to the poles of the cell

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50 points
A prokaryotic cell has no nucleus, no spindle
fibers, and the cell will split into two
identical cells with identical genetic
information soC is the answer
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10 points
Your body contains only these type of stem cells
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10 points
Your body only contains adult stem cells
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20 points

• A stem cell is a great potential for medical uses
  because it
• Undergoes mitosis
• Is not specialized in structure and function
• Is similar to a cancer cell, providing a study
  system
• Undergoes apoptosis

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20 points
A stem cell is not specialized, allowing it to
become many different types of cells giving
stem cells a great potential for medicine
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30 points
Stem cells that are found in the birth chord of
a newborn baby
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30 points
Umbilical stem cells
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40 points
This type of stem cells are considered to be the
most restrictive, found in the persons own body
and might be used to maintain and repair the same
type of tissues in which they are found
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40 points
Adult stem cells are considered to be the most
restrictive, are found in the persons own body
and might be used to maintain and repair the same
type of tissues in which they are found
30
50 points
This type of stem cells are present in a
developing blastodisc about 5 days after
fertilization they are thought to be the most
unstable of all stem cells and have yet to
differentiate at any level
31
50 points
Embryonic stem cells are found after 5 days in a
blastodisc can ultimately become any cell in
the body
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10 points
CDK requires this other protein (enzyme) to allow
for the regulating the cell cycle
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10 points
CDK (cyclin dependent kinases) require the enzyme
Cyclin to regulate the cell cycle
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20 points
the DNA replicated during this stage of interphase
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20 points
DNA is replicated during the Synthesis (S) phase
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30 points

• Scientists can apply a chemical called Colchicine
  to freeze the cells in metaphase by preventing
  the chromosomes from moving away from the
  metaphase plate what part of the cell does
  Colchicine most likely affect?
• Chromosome structure
• Spindle fibers
• Nuclear membrane
• Cell membrane

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30 points
Colchicine most likely affects the spindle
fibers, so that the fibers are unable to pull
apart the chromosomes, keeping the cell frozen
in metaphase
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40 points
A cell that undergoes mitosis without going
through cytokinesis will then have many of these
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40 points
If a cell had mitosis and no cytokinesis would
end up with many nuclei (There are protozoans
called amoebas that are multinucleated)
40
50 points

• The typical growth period of the cell occurs
  during this stage of the cell cycle
• Gap 1(G1)
• Gap 2 (G2)
• Synthesis (S)
• Mitosis

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50 points

• The typical growth period of the cell occurs
  during this stage of the cell cycle
• Gap 1(G1)
• Gap 2 (G2)
• Synthesis (S)
• Mitosis

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10 points
Uncontrolled growth of cells can be called this
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10 points
Uncontrolled growth is called Cancer
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20 points
Tumors and cancer may develop in an organism if
there are problems with these two type of
proteins (enzymes) that control the cell cycle
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20 points
Tumors and cancer may develop with problems with
the Cyclin and Cyclin Dependent Kinases (CDK)
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30 points
At what stage(s) is Cyclin and CDK active and
functioning
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30 points
(Trick question) Cyclin and CDK are both active
throughout the entire cell cycle
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40 points
What is said to happen to the DNA to cause cancer?
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40 points
Cancer is said to be caused by changes
(Mutations) to the DNA molecules of affected cells
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50 points
Aging may be caused by the loss of this part of
the chromosome each time the cell undergoes
mitosis
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50 points
Aging is thought to occur due to the loss of
Telomeres, found at the end of the chromosome
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Final Jeopardy
Give similarities AND differences of cytokinesis
in both plant and animal cells
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Final Jeopardy Answer
Similar Both plant and animal cells will
separate their cytoplasm during cytokinesis,
Difference plants they will form a cell plate
to eventually form a rigid cell wall in between
cells, while animal cells will use a contractile
ring formation to pinch off the cytoplasm to
separate the cytoplasm