QUESTIONS AND ANSWERS
Multicellular organisms begin life as A single cell
Humans become trillions of cells because of? Cellular reproduction
Cellular reproduction continues as we grow to do what? Replace worn out or damaged tissues/cells
Genetic material of organisms composed of chromat...
Quiz 3 for BSC 1005
QUESTIONS AND ANSWERS
Every living cell on the planet is enclosed by a lipid bilayer cell membrane.
Viruses are members of which one of the three Domains of living organisms? - Archea
- Bacteria
- Eukarya
- None
Answer: NoNE: Viruses are not considered to be living organisms, and therefore are not classified with
other living organisms into any of the three Domains that we put all other living things.
The cellular cytoskeleton of eukaryotes contains which of these types of protein fibers? If it isn't
microtubules, intermediate filaments, and microfilaments (actin filaments), then it's wrong. Those 3 are
the three types of protein fibers.
Which structures within a cell are responsible for making (or more accurately, recharging) the ATP
molecules used for cellular energy? mitochondria ; The mitochondria are the cellular power
plants.
The Cell Theory of Schleiden and Schwann was very important in establishing that... all living
things are composed of at least one living cell.
What is it that viruses cannot or will not do that causes them to be defined as a separate group of
organisms, and not as true, living cells? They cannot replicate themselves or reproduce without
being inside a living cell. (Virus particles do not have the machinery for replication or reproduction. That
is why they must invade living cells. The virus particles are using the replication machinery of the living
cells to do the work that the virus cannot do. Viruses do use RNA and DNA just like cells. They do
assemble proteins just like cells. And they do have structure to their particles (although they do not have
a lipid bilayer cell membrane like all other living cells).)
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