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Worksheetsreview 1
Total questions: 16
Worksheet time: 12mins
in which stage of the cell cycle does the cell split into 2?
mitosis
g1
cytokinesis
S
if you look at a cell under a microscope, which phase is it most likely to be in?
cytokinesis
M phase
interphase
G1 phase
which is not a phase of the cell cycle?
interphase
Mitosis
Cytokinesis
Duplication
which statement below describes the events during G2 of interphase
the cell grows, develops, and makes new proteins
the DNA replicates to form a new set of identical chromosomes
The cell grows, makes new organelles and prepares for mitosis
the nucleolus disappears and the nuclear envelope disintegrates
why is the cell cycle often represented as a circle
because its easy to draw
because cell cycles have a distinct beginning and end point
to highlight the checkpoints
it shows that it repeats over and over
which stage of the cell cycle is the MOST critical for ensuring the daughter cells are identical?
G1
S
prophase
G2
when cancer spreads to other tissues of the body it is called...
Metastasis
invasiveness
angiogenesis
chemotherapy
______is a critical point where to stop and go signals can regulate the cycle.
metastasis
checkpoint
malignant
benign
in which part of interphase are the chromosomes replicated?
G0
G1
S
G2
spinal cord injuries are difficult to treat because damaged nerve cells do not regenerate. which of the following most accurately explains why damaged nerve cells no longer regenerate?
mature nerve cells are in a resting state ; they no longer divide during mitosis
nerve damage disrupts the cycle at the G1 phase
nerve damage disrupts the cell cycle at the S phase
nerve damage prevents centrioles from being synthesized
YAY NOW CHEMISTRY
(DRAW A SMILEY FACE)
what are 2 major pats of the atom
(select all that apply)
electron cloud
nucleus
iconic zone
nothing this is dumb
What subatomic particles are found in the nucleus of an atom?
(select all that apply)
neutron
proton
electron
none
Which subatomic particle has a negative charge?
neutron
proton
electron
none
In a chemically neutral atom, which 2 subatomic particles are always equal in number to each other?
protons and electrons
neutrons and electrons
protons and neutrons
none
which element is more reactive
helium
hydrogen
