Exam (elaborations)
JMU BIO 150 QUESTION AND ANSWERS CORRECTLY SOLVED 2024
- Course
- Institution
JMU BIO 150 QUESTION AND ANSWERS CORRECTLY SOLVED 2024
[Show more]
Content preview
JMU BIO 150 QUESTION ANDANSWERS CORRECTLY SOLVED (18
PGS)
What are the characteristics unique to eukaryotes? - correct answer ✔-larger
cell size
-cytoskeleton and inner membrane system
-organelles
-nucleus and linear dna
-sexual reproduction
-multicellularity
What are characteristics of simple multicellularity? - correct answer ✔-
comprised of similar cells with little interdependence
-most cells are in contact with environment
-each cell can perform all the cellular functions needed to survive and
reproduce
What are characteristics of complex multicellularity? - correct answer ✔-
different functions that depend on each other to survive
-specialize cells carry out specific functions
-cannot survive independently
What are the main advantages of multicullularity? - correct answer ✔-
multicellular organisms are bigger
-multicellular organism usually demonstrate cell differentiation, which allows
for specialized cells that perform specialized functions
,What are issues with complex multicellularity? - correct answer ✔-cell
coordination
-cell specialization
-nutrients/waste
What adaptations are used for cell coordination? - correct answer ✔-
adhesion between cells
-communication between cells
-genetic programming cell differentiation
What adaptations are used for cell specialization? - correct answer ✔genetic
programming cell differentiation
What adaptations are used for nutrients and waste in complex multicellularity?
- correct answer ✔internal transport of nutrients and wastes to and from
each cell (bulk flow)
Animals use what type of communication between cells? - correct answer
✔gap junctions
Plants cells use what type of cell communication? - correct answer
✔plasmodesmata
What are the levels of cell differentiation? - correct answer ✔-zygote
-differentiation occurs
-tissues
-organs
-organ systems
, Define bulk flow - correct answer ✔any means by which molecules move
through organisms at rates beyond those possible by diffusion across a
gradient
Define xylem - correct answer ✔the vascular tissue in plants that conducts
water and dissolved nutrients upward from the root and also helps to form the
woody element in the stem.
Define phloem - correct answer ✔the vascular tissue in plants that conducts
sugars and other metabolic products downward from the leaves.
In what order did complex multicellularity characteristics evolve? - correct
answer ✔adhesion -> inter-cell communication -> bulk flow
What enabled huge species diversification? - correct answer ✔bulk flow
Why was oxygen so important to the evolution of complex multicellularity? -
correct answer ✔aerobic cellular respiration produces tons of energy in
comparison to other metabolic reactions
Define constitutive responses - correct answer ✔always present, typically an
adaptive response to consistent selective pressures
What is an example of constitutive responses? - correct answer ✔spines on
a plant dye to herbivory
Define inducible response - correct answer ✔short-term or reversible
response activated by environmental stimuli
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 LEWISSHAWN55. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62890 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now