BIOL 250 FINAL EXAM QUESTIONS AND
CORRECT ANSWERS.
Robert Hooke - Answer developed the first microscope, used to look at plant cells, first to use the term
cells-- looked like what monks lived in
Anton Van Leeuwenhoek - Answer father of microbiology
first to look at living material-- scraped his teeth and saw that sick people had different microogranisms
than his did
Carolus Linnaeus - Answer binomial nomenclature
schleiden and schwann - Answer formulated the cell theory-- cells are fundamental unit of life and
carry out functions of all living things
Louis Pasteur - Answer swan flask experiment-- if the flask was tipped then it would come in contact
with particles and growth would occur immediately
Koch's postulates - Answer When determining the causative agent of disease...
1. specific causative agent must be fond in every case of the disease
2. the disease organism must be isolated into pure culture
3. inoculate a sample of the culture into a previously healthy individual-- must produce the same disease
symptoms
4. culture recovered from the inoculated animal must be the same as the original disease causing agent
What did Koch identify the causative agents of - Answer cholera-- Vibrio cholerae
tuberculosis--Mycobacterium tuberculosis
anthrax-- Bacillus anthracis
,Phillip Semmelweis - Answer doctors should wash their hands-- connection between doctors doing
autopsies and delivering babies
Joseph Lister - Answer father of antiseptic surgery
atom - Answer smallest chemical unit
element - Answer composted of one kind of matter
molecule - Answer two or more atoms combied-- O2
compound - Answer multiple elements- C6H12O6
atomic weight - Answer sum of protons and neutrons
atomic number - Answer sum of protons in the nucleus
cations - Answer lose an electron when joined with another atom, become more positively charged
anion - Answer gain an electron, become more negatively charged
isotopes - Answer atoms within elements that have different number on neutrons-- ex. carbon12,13,14
gram molecular weight - Answer adding based on atomic weights
Avogadro's number - Answer 6.023x10^23
ionic bond - Answer outermost electrons are transferred from one orbital to another
, covalent bond - Answer sharing on electrons between orbitals-- certain arrangements are favorable
and can hold the structure of compounds together
hydrogen bond - Answer interactions among postvely and negatively charged assets-- weak individually
but stronger molecular strength when grouping
catabolism - Answer two elements/compounds joined together to release the energy (break down of
substances)
anabolism - Answer building of substances
qualities of water - Answer 1. act as a solvent bc of its polar nature, negative attracts positive, vice
versa
2. surface tensions-- provides physical strenght
3. high specific heat-- heat can be maintained in living entities, ex. maintaining body temp
4. medium for most chemical reactions
mixture - Answer two substances combined but not chemically bound-- sugar and salt
solution - Answer two substances combined and not easily broken-- salt or sugar in water
solute - Answer the substance that is dissolved-- the sugar
solvent - Answer solutions in which substances are dissolved
pH scales - Answer relates concentration to a numeric value
carbohydrates - Answer main source of energy for most living things
levels of carbohydrates - Answer monosaccharides- glucose
CORRECT ANSWERS.
Robert Hooke - Answer developed the first microscope, used to look at plant cells, first to use the term
cells-- looked like what monks lived in
Anton Van Leeuwenhoek - Answer father of microbiology
first to look at living material-- scraped his teeth and saw that sick people had different microogranisms
than his did
Carolus Linnaeus - Answer binomial nomenclature
schleiden and schwann - Answer formulated the cell theory-- cells are fundamental unit of life and
carry out functions of all living things
Louis Pasteur - Answer swan flask experiment-- if the flask was tipped then it would come in contact
with particles and growth would occur immediately
Koch's postulates - Answer When determining the causative agent of disease...
1. specific causative agent must be fond in every case of the disease
2. the disease organism must be isolated into pure culture
3. inoculate a sample of the culture into a previously healthy individual-- must produce the same disease
symptoms
4. culture recovered from the inoculated animal must be the same as the original disease causing agent
What did Koch identify the causative agents of - Answer cholera-- Vibrio cholerae
tuberculosis--Mycobacterium tuberculosis
anthrax-- Bacillus anthracis
,Phillip Semmelweis - Answer doctors should wash their hands-- connection between doctors doing
autopsies and delivering babies
Joseph Lister - Answer father of antiseptic surgery
atom - Answer smallest chemical unit
element - Answer composted of one kind of matter
molecule - Answer two or more atoms combied-- O2
compound - Answer multiple elements- C6H12O6
atomic weight - Answer sum of protons and neutrons
atomic number - Answer sum of protons in the nucleus
cations - Answer lose an electron when joined with another atom, become more positively charged
anion - Answer gain an electron, become more negatively charged
isotopes - Answer atoms within elements that have different number on neutrons-- ex. carbon12,13,14
gram molecular weight - Answer adding based on atomic weights
Avogadro's number - Answer 6.023x10^23
ionic bond - Answer outermost electrons are transferred from one orbital to another
, covalent bond - Answer sharing on electrons between orbitals-- certain arrangements are favorable
and can hold the structure of compounds together
hydrogen bond - Answer interactions among postvely and negatively charged assets-- weak individually
but stronger molecular strength when grouping
catabolism - Answer two elements/compounds joined together to release the energy (break down of
substances)
anabolism - Answer building of substances
qualities of water - Answer 1. act as a solvent bc of its polar nature, negative attracts positive, vice
versa
2. surface tensions-- provides physical strenght
3. high specific heat-- heat can be maintained in living entities, ex. maintaining body temp
4. medium for most chemical reactions
mixture - Answer two substances combined but not chemically bound-- sugar and salt
solution - Answer two substances combined and not easily broken-- salt or sugar in water
solute - Answer the substance that is dissolved-- the sugar
solvent - Answer solutions in which substances are dissolved
pH scales - Answer relates concentration to a numeric value
carbohydrates - Answer main source of energy for most living things
levels of carbohydrates - Answer monosaccharides- glucose
