Verified | 2024 Version
Actin Filaments are present in: - ✔✔The cell's cortex
Microtubules are present in: - ✔✔The cell's interior
Cytokinesis in plant and animal cells takes two forms: - ✔✔Animal: Contractile Ring Formation
Plant: Phragmoplast Formation
An important checkpoint regulator is at the Gap 2/M-phase transition. Here, Cyclin B and cdkl1 activate
and form MPF which becomes a _____ _____ and causes DNA to condense into _____. - ✔✔Histone
Kinase
Chromosomes
The _____ begins to be destroyed at the Metaphase of the cell cycle causing the chromosomes to begin
to _____. - ✔✔Cyclin B1
Decondense
The activation of both MPF and MAPK result in _____ _____ of the cytoplasm during M-phase. -
✔✔Settling down
MAPK has two different functions depending on where this Kinase acts in the _____ _____. If the Kinase
becomes active during interphase, the cell is triggered to progress through the _____ _____. - ✔✔Cell
cycle
Cell cycle
Two types of second messengers discussed in lecture can exist downstream of a plasma membrane
receptor. These are _____ and _____. - ✔✔Cyclic AMP
MAP Kinase
, There are two basic forms of cytoplasmic signaling (i.e signal transduction). One uses _____ and the
other uses _____. - ✔✔Protein Kinases
Calcium Signal
What is the difference between a single-pass transmembrane protein and a 7-pass transmembrane
protein? - ✔✔A single pass TMP is a singular protein that passes once through the bilayer. A 7-pass
protein passes through the bilayer 7 times, creating a channel for ions to pass through. A single pass TMP
cannot create an ion channel.
Is a cancer cell anchorage independent and immortal, or is it anchorage dependent and mortal? Do they
exhibit contact inhibition? - ✔✔They are anchorage independent and immortal, and they do not exhibit
contact inhibition, because they continue to grow despite their surroundings.
If something is soluble in water, a hydration forms around it and it is termed: - ✔✔Hydrophilic.
What limits the paramecium from acquiring more complex functions? - ✔✔The paramecium cannot fit
any more biomachinery into its space.
What limits an individual cell from becoming more complex? - ✔✔Division of labor.
T/F: In your own multicellular body, different cells have a division of labor between them: - ✔✔True.
T/F: A normal cell is anchorage-dependent for growth and mortal: - ✔✔True.
Comparing a single-celled Eukaryotic organism with a multi-cellular organism such as yourself, what is
the major difference: - ✔✔Division of labor.
T/F: In your own multicellular body, cells with different functions have different DNA: - ✔✔False.
A single celled Eukaryotic organism: - ✔✔Has a limited number of biomolecular machines