MCB150 Exam Questions and Answers 100% Solved | Graded A+
3 views 0 purchase
Course
MCB150
Institution
MCB150
MCB150 Exam Questions and Answers
100% Solved | Graded A+
Nucleoid - Prokaryotes have these, this is where their genetic
material is found. eukaryotes don't have these.
cytoplasmic membrane - Plasmic membrane
every cell has one
genetic material of a eukaryote resides in the - nucleus
The clo...
Nucleoid - ✔✔Prokaryotes have these, this is where their genetic
material is found. eukaryotes don't have these.
cytoplasmic membrane - ✔✔Plasmic membrane
every cell has one
genetic material of a eukaryote resides in the - ✔✔nucleus
The closer Rnas they match, the two organisms more likely have an
ancestor together. - ✔✔
the Archaea are genetically closer related to the eukarya then to the
bacteria, although archaea and bacteria both prokaryotes. the archaea and
bacteria do look alike, though. structurally, - ✔✔
Basic tenets of the cell theory: - ✔✔1. Cell is fundamental unit of life.
2. All organisms are composed of cells.
3. all cells come from preexisting cells.
Cells are small... Why? - ✔✔As the size increases, the surface area to
volume ratio decreases!
,**
Smaller you are, less volume you have, less reactions you can maintain.
transmission electron miscrospy - ✔✔thin section of material that u can
look very closely at.
scanning electron microscopy - ✔✔not as close of a look, but gives a 3d
Look.
electron microscopy. - ✔✔darker images mean denser material
Light images mean less dense material!
Cells (plants, most prokaryotes) have a cell wall. - ✔✔Rigid, cell wall.
Provides shape and protection.
Every cell is surrounded by a plasma membrane. - ✔✔--Allows cells to
maintain a constant internal environment.
--acts as a selectively permeable barrier.
--is an interference for cells where info is received from adjacent cells and
extracellular signals.
-has molecules that are responsible of binding and adhering to cells.
,some bacteria have Capsules - ✔✔thick layer of carbs and proteins.
extra protection from the outside of a cell.
--allows to stick to other cells
-Even if they possess a capsule, bacteria does NOT rely on the capsule for
survival!
**non essential, but does have an advantage.
- ✔✔
Difference from bacteria and archaea: - ✔✔Bacteria have
PEPTIDOGLYCAN in their cell wall.
In lateral gene transfer, genes are ______. - ✔✔moved from one
species to another
Eukaryotic cells are much larger than bacteria and archaea! -
✔✔Prokaryotic cells measure 1-10 micrometer in diameter.
Eukaryotic cells measure 5-100 micrometer in diameter.
Benefits of compartmentalization..... - ✔✔Incompatible chemical rxns
can be separated!
Chemical reactions become more efficient.
, Difference between Prokaryotic cells and Eukaryotic cells. - ✔✔1.
Eukaryotic chromosomes are found inside a membrane-bound
compartment called the NUCLEUS!
2. Eukaryotic cells are LARGER than the prokaryote.
3. Eukaryotic cells contain extensive amounts of internal membrane.
4. Eukaryotic cells feature a diverse and dynamic cytoskeleton.
Cytosol - ✔✔The fluid portion between the plasma membrane and
organelles.
Nucleus: - ✔✔-contains the chromosomes
- functions as an administrative center for info storage and processing.
-biggest and most organized.
enclosed by a unique structure, called the nuclear envelope. Complex
double membrane.
Nuclear Lamina - ✔✔Nuclear envelope in the nucleus has this..
Pore-like openings, inside surface is linked to fibrous proteins that form a
lattice like sheet
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 JOSHCLAY. 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.
