Exam (elaborations)
Cell Biology Exam 4 Evan Kaplan|145 Answered Questions| A+ Graded
- Course
- Institution
Cell Biology Exam 4 Evan Kaplan|145 Answered Questions| A+ Graded
[Show more]
Seller
Follow
Victorious23
Reviews received
Content preview
Cell Biology Exam 4 Evan Kaplan|145Answered Questions| A+ Graded
At any one time, a typical eukaryotic cell carries out... - -thousands of
different chemical reactions
-For a cell to operate effectively, the different intracellular processes that
occur simultaneously ... - -must somehow be segregated
-A method of cells isolating/organizing reactions is confining different
metabolic processes within different membrane-enclosed compartments or
______________ - -organelles
-Prokaryotic cells usually consist of... - -a single compartment enclosed by
the plasma membrane
-Eukaryotic cells are sub-divided by ____________________ - -internal
membranes
-The ____________ ______________ _____________ in eukaryotic cells are all
distinct, each contain a unique set of large and small molecules that
determine its specialized function - -membrane-enclosed organelles
-Organelles occupy nearly __________ the volume of a eukaryotic cell - -half
-In a typical mammalian cell, the area of the endoplasmic reticulum
membrane is ______________ than that of the plasma membrane - -20-30
times greater
-In terms of area and mass, the plasma membrane is only a _____________
________________ in most eukaryotic cells - -minor membrane
-Each organelle obtains its ___________ from the _____________, where they
are made, to the compartment where they are used - -proteins, cytosol
-Proteins are being produced _________________ - -continually
-Newly made proteins must be accurately delivered to their ______________
______________, where they will perform their function - -appropriate
organelle
-Directing new proteins to _____________________________ is necessary for any
cell to grow, divide, and function properly - -their correct organelle
, -For the interior of the ___________ , __________ , ___________ , ___________ , and
____________ , proteins are delivered directly from the cytosol - -nucleus,
mitochondria, chloroplasts, peroxisomes, and ER
-For the ER, some proteins ________________________ but most are
____________________ - -stay there, transported by vesicles to the Golgi and
then onward to other organelles/the plasma membrane
-The _______________ and _______________ also make some of their proteins - -
mitochondria and chloroplasts
-The synthesis of most proteins in the cell begins at.... - -ribosomes located
in the cytosol
-_______________ ________________ is the process of transporting a protein to
its destination where it will function - -Protein sorting
-A particular segment of the proteins' amino acid sequence will act as a
________________ _______________ that is involved in directing the protein to a
particular organelle/location - -sorting signal
-____________ _____________ ______________ direct the movement of (or sort)
proteins. They are comprised of a continuous stretch of 15-60 __________
___________ long. - -sorting signal sequences, amino acids
-Removal of a signal sequence from an ER protein... - -converts it to a
cytosolic protein
-Addition of a signal sequence to a cytosolic protein... - -converts it to an ER
protein
-A protein that lacks a sorting signal will... - -remain and function in the
cytosol
-_______________ _________________ are another form of targeting proteins to
specific locations; never removed; commonly used for directing proteins to
the nucleus - -signal patches
-Signal patches are made up of amino acids that are _______________ to one
another in the primary sequence, but _______________ to each other in the
tertiary structure of the folded protein - -distant, come closer
-Proteins are transported throughout the cells by various mechanisms: - --
Through nuclear pores
- Across organelle membranes
- By transport vesicles
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Victorious23. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
85443 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now