Exam (elaborations)
Bio 151 Module 6 Questions answers latest update
- Course
- BIOL 151
- Institution
- University Of Wisconsin - Madison
Bio 151 Module 6 Questions answers latest update
[Show more]
Content preview
Bio 151 Module 6unified cell theory - 1. all living things are composed of one or more cells
2. the cell is the basic unit of life
3. new cells arise from existing cells
2 types of cells - eukaryotic and prokaryotic
Prokaryotic cells - single-celled organism lacking nucleus or any other membrane-
bound organelle; includes nucleoid, cell wall, capsule, fimbriae, cilia, and flagella
4 things all cells share - 1. Plasma membrane
2. Cytoplasm
3. DNA
4. Ribosomes
peptidoglycan cell wall - bacteria; extra layer of protection, maintains shape, and
prevents dehydration; Gram positive (G+) thick layer and Gram negative (G-) thin
layer
capsule - enables cell to attach to surfaces in its environment
, pili - exchange genetic material during conjugation (a type of reproduction)
fimbriae - used by bacteria to attach to a host cell
eukaryotic cells - have membrane-bound nucleus, numerous membrane-bound
organelles, and many rod-shaped chromosomes
plasma membrane - phospholipid bilayer with embedded proteins separating
internal contents from surrounding environment; controls passage of organic
molecules,wastes, ions, water, and oxygen into and out of cell; form unique shape
for specific function
cytoplasm - entire region between plasma membrane and nuclear envelope made
up of organelles suspended in gel-like cytosol, the cytoskeleton, and various
chemicals; semi-solid consistency coming from proteins; 70-80% water; metabolic
reactions take place here
nucleus - houses cell's DNA and directs synthesis of ribosomes and protein; stores
chromatin
nuclear envelope - double-membrane structure (phospholipid bilayers) that
constitutes the outermost portion of the nucleus' punctuated with pores that
control passage of ions, molecules, and RNA between nucleoplasm and cytoplasm
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 Schoolflix. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53340 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now