Class notes
Bio 101 Exam 1 Review Notes
- Course
- BIO 101
- Institution
- Bergen Community College
This is a comprehensive and detailed review note for Bio 101 Exam 1.
[Show more]
Seller
Follow
Content preview
BIO-101Lecture Exam #1 Review
Chapter 1: The Science of Biology ( Naomi )
● Characteristics of life - cellular organization, energy utilization, homeostasis, growth - development - and
reproduction, heredity
● Experimental design-
o Hypothesis - an educated guess
o Independent variable - often manipulated and on the x axis
o Dependent variable - dependent on the x axis but is on the y axis
o Controlled variable - stay constant
● Scientific theory - expresses idea of the most certain explanation -
● Darwin’s contribution to science - mechanism
● Darwin’s observation of finches -slight changes in their beak to adapt to environment
● Evidence supporting evolution - Fossil record and molecular evidence
Chapter 2: The Nature of Molecules & The Properties of Water ( Daniel )
● Matter - Anything that takes up space.
● Atoms - smallest units of matter that
● Protons, neutrons, electrons - Protons have positive charge, neutrons have neutral charge and then electrons
have negative charge
● Atomic number - It gives the element its identity.
● Atomic mass/weight - AMU
● Elements - are unique forms of matter with periodic chemical and physical properties that cannot break down
into smaller substances.
● Neutral vs. Ion (+, -)
● Isotope - A neutral atom but different number of neutrons.
● Valence electron - The electrons in the outermost shell always wanting 8
● Octet rule - Every element wants 8 electrons. because it fiends 8
● Molecules - A lot of atoms that are put together
● Compounds - Elements turn into compounds.
● Chemical bonds - turns atoms into molecules.
● Ionic bonds - full gain/loss electrons
● Covalent bonds - single,double,or triple
● Electronegativity - how greedy an atom is for electrons.
● Nonpolar covalent bonds - a type of chemical bond that is formed when electrons are shared equally
between two atoms
● Polar covalent bonds - exists when atoms with different electronegativities share electrons in a covalent bond.
● Intramolecular forces - Within forces
● Intermolecular forces - Between forces
● Hydrogen bonds - Are weak bonds between slightly positivlity charged hydrogen atoms to slightly negatively
charged atoms in other molecules.
● Polarity of water -
● Cohesion - Same molecules attracted to each other
● Adhesion - When things that are similar are being attracted.
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 anyiamgeorge19. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78462 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now