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BIOL 104 EXAM 1 QUESTIONS AND ANSWERS
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BIOL 104 EXAM 1 QUESTIONS AND ANSWERS
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BIOL 104 EXAM 1 QUESTIONS ANDANSWERS
what is the core theme of biology - Answer -evolution
what are the seven common characteristics of all living things - Answer -exhibit order
evolutionary adaptations
regulation
process energy
respond to environment
growth, development
reproduce own kind
definition of evolution - Answer -process of change in populations of organisms that has
transformed life on earth
what are the five underlying themes in the study of life - Answer -organization,
information, energy and matter, interactions, evolution
organizational themes of life - Answer -biosphere-ecosystem-community-population-
organism- organ system- organ- tissue- cell-
organelle- molecule- atom
biosphere - Answer -total of all ecosystems on earth
ecosystem - Answer -living and non-living organisms in an area
community - Answer -living organisms in ecosystem
population - Answer -1 species among a community
organsim - Answer -one member of a population or species
organ system - Answer -group of organs that perform similar functions
organ - Answer -make up an organ system
tissue - Answer -group of cells that perform similar functions
, cell - Answer -basic structure and functional unit of life
organelle - Answer -membrane structure of cells that have specific functions and
structures
molecule - Answer -grouping of atoms chemically bonded together
atom - Answer -smallest unit of matter
what are emergent properties and how do they relate to the structure of life - Answer -
novel properties that emerge at each level. new properties help organism survive longer
correlation between structure and function - Answer -cell. lowest level of organization
that can perform all actions needed for life. every cell has a membrane that regulates
the passage of materials between the cell and its environment
what is a cell - Answer -lowest form of organization that can perform all actions needed
for life.
three common features of all cells - Answer -enclosed by a membrane, all have DNA,
contain ribosomes
Prokaryotes and their domains - Answer -singled cell organism with no nucleus or other
organelles. Bacteria and archea
Eukaryotes and their domain - Answer -cell that has a nucleus and other enclosed
organelles
difference between eukaryotic and prokaryotic cells - Answer -euk- nucleus and DNA
inside, organelles
pro- nucleoide region, no organelles
what is a genome - Answer -organisms entire set of genetic instructions
what happens to the genome when cells reprodce - Answer -doubles and splits
what is a DNA molecule - Answer -deoxyribose nucleic acid. double helix. 2 sugar
phosphate backbones. 4 nitrogenous bases
what is a nucleotide - Answer -nitrogenous base. 4. ATCG- adenine + thymine
cytosine+ guaine
what is a gene - Answer -encode information for building the molecules synthesized by
the cell
relationship between gene, DNA, proteins - Answer -gene- controls protein production
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