Exam (elaborations)
PLS-150 Exam #1 URI with complete solutions graded A+ passed
- Course
- Institution
PLS-150 Exam #1 URI with complete solutions graded A+ passed
[Show more]
Content preview
PLS-150 Exam #1 URIHow old is the Earth? - correct answer ✔✔4 Billion years old
Define Big Bang - correct answer ✔✔Infinitely dense point exploded and created all matter, which is still
expanded
What are the cornerstones of science? - correct answer ✔✔Chemistry, Biology, and Physics
Biology = what 3 things combined - correct answer ✔✔Carbon, chemistry, and physics
What kinds of plants is the course concerned with? - correct answer ✔✔Ones that are economically
important
Most important atom? - correct answer ✔✔Carbon
Ionic Bonds and example - correct answer ✔✔weak bonds caused from different charges, ex: salt
Covalent Bonds and example - correct answer ✔✔Strong bonds caused by shared electrons ex: water
Hydrogren Bond - correct answer ✔✔Super weak bond, more like an association, molecule to molecule,
not atomic level, molecule acts like it has two charges, hydrogen usually present
Most important part of atom? - correct answer ✔✔Proton
Enyzme - correct answer ✔✔A proton that enables a chemical reaction
Sucrose - correct answer ✔✔2 glucose
, Respiration - correct answer ✔✔taking energy from sugars
Horticulture - correct answer ✔✔involves all aspects of plant growth mgmt and economy
Precurser to plants - correct answer ✔✔Phytoplankton
species - correct answer ✔✔group of plants that can readily mate
How are beer, cheese, bread made? - correct answer ✔✔fungi working on plant material
Bamboo grass or tree? - correct answer ✔✔Grass
Name two medicines made from plants - correct answer ✔✔Taxol and morphine
Name for farming civilizations - correct answer ✔✔agrarian
Substinence Farming - correct answer ✔✔Growing no surplus
Name three historical events caused by plants - correct answer ✔✔1315, great famine of europe, 1692,
Salem Witch trials, 1850, potato famine
High yielding varities - correct answer ✔✔crops that have been bred, genetically modified, or fertilized
to increase their production yields.
What did Norman Borlaug do? - correct answer ✔✔He brought rice to india on brink of famine,
produced 10x more, first person in agriculture to get peace price
3 benefits of industrial farming - correct answer ✔✔easy to grow large quantities, requires few people,
creates a uniform product
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 BravelRadon. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72349 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now