100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Bio 1500 Final Exam (Questions & Answers) Rated 100% $7.99   Add to cart

Exam (elaborations)

Bio 1500 Final Exam (Questions & Answers) Rated 100%

 17 views  0 purchase
  • Course
  • Bio 1500
  • Institution
  • Bio 1500

chloroplasts - -contain the pigment chlorophyll -chlorophyll absorbs red, blue, & violet light ATP - -used to transport E around cells -chemical E stored in the bonds -important bonds between 2nd and 3rd phosphate group -going to lower energy state breaks bonds and releases the energy each mo...

[Show more]

Preview 3 out of 16  pages

  • August 24, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Bio 1500
  • Bio 1500
avatar-seller
PatrickKaylian
Bio 1500 Final Exam (Mizzou)
chloroplasts - -contain the pigment chlorophyll

-chlorophyll absorbs red, blue, & violet light



ATP - -used to transport E around cells

-chemical E stored in the bonds

-important bonds between 2nd and 3rd phosphate group

-going to lower energy state breaks bonds and releases the energy



each molecule during diffusion - -moves randomly

-behavior unpredictable

-each individual molecule never stops moving



dragon fly size - -high O2 levels in carboniferous allowed them to grow big

-later in history predators constrained the max size



O2 levels in atomosphere - cyanobacteria and green algae chloroplasts contributed.... through
photosynthesis



oldest fossils - 3.5-4 bya



1st insects - 480 mya



1st dinosaurs - 240 mya



dinosaurs go extinct - 66 mya

,1st homosapiens - 200k ya



diffusion - mvmt of molecules from high to low concentration

-driven by Brownian (thermal) mvmts



net movement of molecules in diffusion - -from high to low conc.

-predictable

-stops when it reaches equlibrium



Photosynthesis - -light energy is used to make carbs from CO2 and water

-takes place in chloroplasts



step 1 of photosynthesis - -light reactions

-ATP is synthesized, NADPH is generated

-water is split apart, releasing O2 as a by product



step 2 of photosynthesis - -light independent reactions

-E from ATP & NADPH are used to build glucose from CO2 & water (Carbon Cycle)



Great Oxygenation Event - -3 -2.3 bya

-cyanobacteria evolved photosynthesis

-free O2 as a side effect... led to some O2 levels in atmosphere



O2 accumulation in atmosphere - -minerals formed (ex: banded iron ore)

-ozone layer formed (protection from UV light)

-free O2 toxic to cells

-O2 reacted with methane.... led to snowball ice age

-prokaryotes evolved ways to use O2... evolution of cellular respiration

, Evolution - -a change in allele frequencies in a population

-natural selection is one of the mechanisms



gene - -a segment of DNA w/ instructions for building a protein molecule

-specifies the sequence of amino acids that makeup the protein



alleles - -different possible forms of the same gene

-differ in DNA sequence & in protein structure they code for

-may be many alleles for same gene

-any 1 person can have max of 2 different alleles



Natural Selection - -phenotypes are variable in population

-offspring have similar phenotype as parents

-mutations occur randomly, but doesn't create new alleles

-natural selection not goal directed



Postulates of natural selection - 1. individuals vary in their traits

2. some of the variation is heritable (can be passed to offspring)

3. more offspring are produced than survive to reproduce

4. survival & reproduction are non random; those w/ favorable traits reproduce most & pass their genes
on

-favorable traits become more common



population - group of organisms that breed w/ each other



phenotype - observable traits



fitness - ability to survive & reproduce in an environment

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 PatrickKaylian. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $7.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

83637 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$7.99
  • (0)
  Add to cart