+
Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
|
What are the attributes of life?
|
With definite structure and organization, metabolism, homeostasis, reproduction, growth and development, responsiveness, evolution
|
|
Who are the three supporters of biogenesis?
|
Francesco Redi (first experimental proof), Lazzaro Spallanzani - commercial canning, Louis Pasteur - sterilization
|
|
What theory proposes that cosmic collision brought life to earth?
|
Panspermia or extraterrestrial origin
|
|
What theory was proposed by Alexander Oparin?
|
Coacervate theory
|
|
According to Oparin's theory, what was the condition of the atmosphere before? What compounds are abundant and scarce?
|
Reducing atmosphere - ample H+, scarce oxygen, composed of CO2, CH3, NH3, water vapor, H+
|
|
What experiment supports Oparin's theory?
|
Miller-Urey experiment
|
|
What is the isotope of H w/ 1 neutron? 2 neutrons?
|
Deuterium, tritium
|
|
What elements make up life?
|
CHON (96%), P,S,Ca,K (4%)
|
|
What are the 4 macromolecules of life?
|
Nucleic acids, protein, carbohydrates, lipids
|
|
Monomers of: carbohydrates, protein, lipids, nucleic acids?
|
Sugar, amino acid, fatty acids, nucleotides
|
|
The three proponents of the cell theory?
|
Schleiden, Schwann, Virchow
|
|
What does the cell theory say?
|
(1) all organisms are made up of one or more cells (2) cells are the basic unit of structure and function of organisms (3) cells arise from pre-existinc cells (4) cells have hereditary material through w/c characteristics can be passed from parent cell to daughter cell.
|
|
Differentiate eukaryotes and prokaryotes
|
Eukaryotes - have true nucleus and membrane bound organelles; plants, animals, protists
Prokaryotes - no true nucleus and membrane bound organelles, moneran |
|
What are the 4 prerequisites for cell?
|
DNA, plasma membrane, cytoplasm, ribosome
|
|
What theory states that hosts engulfed prokaryotes that aided them w/ special metabolic activities?
|
Endosymbiotic theory
|
