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Texas A&M - BIOL 111 - Spring 2018 - BIOL 111 Week 1 Notes - Class

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Texas A&M - BIOL 111 - Spring 2018 - BIOL 111 Week 1 Notes - Class

School: Texas A&M University
Department: Biology
Course: Introductory Biology I
Professor: Andrew Tag
Term: Fall 2016
Tags: Biology
Name: BIOL 111 Week 1 Notes
Description: Week 1 and 2 combined
Uploaded: 02/03/2018
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background image Study Soup Week 1 BIOL 111 Notes Chapter 1 - Concept 1.1: “The study of life reveals unifying things” o Key terms Emergent properties Systems biology Eukaryotic cell Prokaryotic cell DNA Genes  Gene expression Genomics Genome Bioinformatics Producers Consumers Evolution Bacteria Archaea Eukarya Natural selection Deductive reasoning o Biological organization  Atom < molecule < organelle < cell < tissue < organ < 
organ system < organism < population < community < 
ecosystem < biosphere 
The way to understand how an ecosystem functions and 
performs is to analyze the different parts/levels.
o The structure of all levels of biological organizations directly  impacts its function. o Eukaryotic cells  Nucleus Membrane-enclosed organelles o Prokaryotic cells Nucleus No membrane-enclosed organelles o DNA Nucleotide Genetic information encoded within Transmits genetic information from parent to child Sequences, also known as genes, are transcribed into 
mRNA before being translated into proteins known as gene 
expression
background image RNAs produced serve other uses rather than 
translating to proteins
o Genomics The analysis of DNA sequences and genomes on a larger 
scale
o Producers Use energy from the sun to make chemical energy while 
the rest is lost as heat to the environment
o Consumers Obtain chemical energy from producers or other 
consumers.
o Negative feedback Too much end product will slow production due to build up o Positive feedback Excess end product encourages production  - Concept 1.2: “The core theme: evolution accounts for the unity and  diversity of life” o Evolution  What caused the variation in organisms on earth that made
then similar yet different
Evolutionary adaptation How one gene or trait becomes more concentrated in
an environment 
Organisms that contain unfavorable traits tend to be 
killed off which lowers the rate of reproduction for 
those traits
o Domain Bacteria and Archaea  Made up of protists o Domain Eukarya Eukaryotes Made up of o Protists
o Kingdoms
Plantae  Fungi Animalia o Darwin Natural selection Composed of evolutionary adaptations where 
organisms change over time to better fit within their 
environment
Reproduction is more successful in organisms who 
have the most favorable traits as they tend to 
background image survive in higher percentages than those with the 
less favorable trait
- Concept 1.3: “In studying nature, scientists make observations and  form and test hypotheses” o Hypotheses are required to be able to be tested through  experiments or observation. o Controlled experiments  Show effect of one variable with one control group and 
other groups who have one variable that is different so it 
can be observed for differences 
- Concept 1.4: “Science benefits from a cooperative approach and  diverse viewpoints” o Repetition is key in the field of science so it is helpful to be able  to reproduce the result Chapter 2 - Concept 2.1: “matter consists of chemical elements in pure form and in combinations called compounds” o Elements The simplest chemical form of a substance. Contains only 
one kind of element. 
Ex. O 2 , C o Compound Two or more elements formed together Ex. H 2 O - Concept 2.2: “an element’s properties depend on the structure of its  atoms” o Atom The smallest part of an element Nucleus Contains protons and neutrons Protons Positively charged  Determines atomic number Neutrons No charge Determines isotope  Electrons Negative charge Kept in electron cloud surrounding nucleus o Elements make up 96% of a human’s body weight Carbon, Hydrogen, Nitrogen, and Oxygen are the main 
components of our body
o Trace elements These make up less than 0.01% of human body weight

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School: Texas A&M University
Department: Biology
Course: Introductory Biology I
Professor: Andrew Tag
Term: Fall 2016
Tags: Biology
Name: BIOL 111 Week 1 Notes
Description: Week 1 and 2 combined
Uploaded: 02/03/2018
8 Pages 36 Views 28 Unlocks
  • Better Grades Guarantee
  • 24/7 Homework help
  • Notes, Study Guides, Flashcards + More!
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