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Quarter 1 Unit 2 The Cell Notes Questions And Answers
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Quarter 1 Unit 2 The Cell Notes Questions And Answers
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Quarter 1 Unit 2 The Cell Notes Questions And Answersafter being modified in the ER, where do the modified proteins
go? - These modified proteins will be incorporated into cellular
membranes—the membrane of the ER or those of other
organelles—or secreted from the cell.
After the protein has its final set of carbohydrate chains in the
Golgi body, what happens next? - The protein, with its final set
of carbohydrate chains, is then transported to the plasma
membrane in a transport vesicle. The vesicle fuses with the
plasma membrane, its lipids and protein cargo becoming part of
the plasma membrane.
Finally, the modified proteins are sorted (based on markers such
as amino acid sequences and chemical tags) and packaged into
vesicles that bud from the trans face of the Golgi. Some of these
vesicles deliver their contents to other parts of the cell where
they will be used, such as the lysosome or vacuole. Others fuse
with the plasma membrane, delivering membrane-anchored
proteins that function there and releasing secreted proteins
outside the cell.
amphipathic definition: KA - Molecule that contains both a
hydrophobic and a hydrophilic end
are all channel proteins open all the time? - Some channel
proteins are open all the time, but others are "gated," meaning
that the channel can open or close in response to a particular
signal
,Are amoeba heterotrophs or autotrophs? - heterotrophs
are carrier proteins selective? - Like channel proteins, carrier
proteins are typically selective for one or a few substances.
Often, they will change shape in response to binding of their
target molecule, with the shape change moving the molecule to
the opposite side of the membrane.
Are chloroplasts involved in Protein synthesis? - Yes, it can
produce its own
proteins because it contains its
own DNA.
Are elodea cells autotrophic? - yes? (check)
Are elodea cells photosynthetic? - YEs
are embedded proteins used exclusively for passive transport? -
Embedded proteins can be used for passive or active transport -
if ATP is needed to make protein work then is active (not
exclusive to passive transport)
Are euglena autotrophic? - yes
are euglena heterotrophic? - Yes
Are Golgi bodies enclosed by a lipid bilayer? - Yes - 1
Are Golgi bodies involved in protein synthesis? - Yes. Golgi
bodies are involved
in protein synthesis because it
,adds carbohydrates to the
proteins to finish their
production.
Are paramecia heterotrophic or autotrophic? - heterotrophic
are peroxisome's involved in protein synthesis? - no
are peroxisomes part of the endomembrane system? -
peroxisomes—unlike lysosomes—are not part of the
endomembrane system. That means they don't receive vesicles
from the Golgi apparatus
Are prokaryotic cells smaller or larger than eukaryotic cells?
Why or why not? - Prokaryotic cells are smaller, less organelles
(come first in evolution)
are the portions of an integral membrane protein found inside
the membrane hydrophilic or hydrophobic? what about the
portions of an integral membrane protein found in the cytoplasm
or extracellular fluid? - hydrophobic
hydrophilic
Are there smooth patcher of ER found within the rough ER? -
Yes
Are thylakoid disks hollow? - yes
are vacuole's involved in protein synthesis? - No
, Are volvox autotrophic or hetertrophic? - autotrophic
Are volvox heterotrophic or autotrophic? - autotrophic
have chloroplasts
as long as you do __________, as a eukaryotic cell, nature won't
discriminate against you in opposition to prokaryotic cells -
About transference of nutrients and getting rid of waste
As long as you can do that at the same rate of efficiency of a
prokaryotic cell, nature won't discriminate against you in natural
selection
As the ribosomes on the RER make proteins, where do they put
the newly forming protein chains? - Into the lumen.
Some are transferred fully into the ER and float inside, while
others are anchored in the membrane.
ATP definition - Adenosine triphosphate, the primary energy
carrier in living things
ATP KA - Adenosine triphosphate, the primary energy carrier in
living things
besides membrane proteins, what do carbohydrates in the cell
membrane form? - Along with membrane proteins, these
carbohydrates form distinctive cellular markers, sort of like
molecular ID badges, that allow cells to recognize each other.
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