Hutlcrn Biology (IDS-Ill) Spring 20 l-IX.-\.'\IIN.-\'l'l().\' l
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Modern Biology 03-121-C / Fall '09
due: Friday, 4 December, 8:30 AM
For problems 1 & 2, refer to the posted notes titled "Chemical thermodynamics and the electrochemical potential" (filename: Thermodynamics_v2a.pdf) in Course Documents.
Dr. Javier Lopez, MI 246, ([email protected])!
Dr. Linda Visomirski-Robic (Dr. V.), DH2108,
To learn the basic information, concepts and
principles necessary for an understanding of
Chapter 2 lectures outline / 03-121
rev 30aug13 / FL
Under what conditions did life arise on Earth?
General considerations - How old is the Earth? How long ago did life originate?:
Gravitational condensation of the solar nebula and formation of the solar
Chapter 1 discussion - lectures 1 and 2
Definition of "living organism" and "alive".
Yes - Cells have an internal metabolism, process information, utilize free energy (food
or sunlight), grow, and replicate.
No - Viruses have a life cycle that involves a
Lecture 1 / 26aug13
Two basic questions:
What are organisms, and how do they "work"?
Where did they come from?
-The Cell Theory
Taxonomies, Phylogenies, and the 'Tree of Life'
-Invention of the microscope in the mid-1600s, followed by a
Lecture 1 - part 2 / 28aug13
Some further comments about Chapter 1:
Main point: Cell Theory and Evolution are the unifying principles of biology.
In the 155 years since Darwin and Wallace reported their findings, Evolution has been
Ribosomes are the protein synthesis machines found in all living cells. In most cells, ribosomes
are found in great numbers in the cytoplasm. Ribosomes are complicated assemblies of RNA
and protein molecules. From X-ray crystallographic analysis
Embryos without Bicoid have no head
structures and two tails (soon dies)
Animal reproductive cycle
Cleavage and early development
Germ layers and gastrulation
Neural tube and somites
An mRNA cytoplasmic determinant
An enhancer binding-protein for anterior-posterior
A maternal effect gene
Do adult cells contain
Prokaryotes vs. eukaryotes
Transfer RNAs (tRNAs)
Prokaryote polyribosomes form while
transcription is still ongoing
In eukaryotes, tr
1. In cells, which of the following molecules provides the information for the replication of DNA?
2. Which of the following enzymes is responsible for the synthesis of the new DNA strands?
a) DNA ligase
Chapter 6: The Importance of Membranes
The plasma membrane, or cell membrane
separates life from non-life
The plasma membrane separates the cells
interior from the external environment
Membranes func7on to
TOPICS EXAM 4
-lrokar_\'otic promoters: -lll and -35 hoses (number is equitalent to the amount of
nucleotides hetueen the point and the start oltranscription): consensus sequences (most
frequent and cotntnon nucleotide at each position)
-Sigma factor I pr
Last Name First Name
Modern Biology (03-121) Spring 2014 I~ZX.-\i\lli\'.-\'ll()i\' 2
The exam is elosed notes. closed book. with no talking. 'lhe exam is due at l:2(l pin.
Multiple choice questions may require you to mark more
Read eueh question eai'el'