BIO 30 FINAL EXAM QUESTIONS
AND ANSWER A+ GRADED!!!
A
R
U
LA
C
O
D
,Describe each of the 7 characteristics of living things. - ANS Metabolism, Responds to
stimuli, Growth & Development, Reproduction, Evolve & Adapt, Composed of Cells,
Homeostasis. (M.R. G.R.E.C.H.)
What is the difference between a producer and a consumer? - ANS a producer produces
its own food through photosynthesis or other chemical pathways while a consumer must obtain
A
its energy by eating other organisms.
How does metabolism relate to catabolism and anabolism? - ANS Anabolism is the
R
building up substances, catabolism is the breaking down substances to release energy .
Therefore, anabolism + catabolism = metabolism.
What is the difference between asexual and sexual reproduction? - ANS Sexual
U
reproduction involves 2 organisms, asexual involves 1, outcome is identical to parent in asexual
and different in sexual.
LA
Define and give examples of unicellular and multicellular organisms. - ANS Unicellular: one
celled organism (diatoms, Protista, bacteria)
Multicellular: more than one celled organism (human, dog, cow)
What is homeostasis? - ANS Process by which organisms maintain a relatively stable
internal environment.
C
Are viruses, viroids and prions alive? Why or why not? - ANS Viruses, viroids and prions
are non-living as they do not contain all the 7 characteristics of life.
O
What is another name for abiogenesis? - ANS spontaneous generation
What is spontaneous generation? - ANS the theory that life appears from nonliving things.
D
Describe Redi's experiment. - ANS Took 2 jars, both which contained meat. One jar was
covered and the other jar was left uncovered. the uncovered jar had maggots while the covered
jar had nothing. (Disproved Abiogenesis)
Needham and Spallanzani had similar experiments. What were the differences? - ANS
Needham: Wanted to prove abiogenesis: he loosely sealed flasks, and then boiled them. Over a
period of time, the flasks became contaminated with bacteria. Yielding the result of loose seal =
life in flask. ("Proved" Abiogenesis)
, Spallanzani: Wanted to disprove abiogenesis: disagreed with Needham so he boiled the flasks
of meat broth longer and then sealed the top shut, resulting in no growth.
Who disproved abiogenesis with a swan-necked flask? - ANS Louis Pasteur
Who was Alexander Oparin? - ANS A russian biochemist who hypothesized chemical
evolution.
Describe the Miller-Urey experiment. - ANS Attempted to prove Oparin's hypothesis, two
American scientists, carried out an experiment in which they attempted to simulate early earth
conditions. They mixed water vapour with ammonia, methane, and hydrogen gases. They then
A
sent an electric current that simulated lightning through the mixture. Then they cooled the
mixture of gases, producing a liquid that simulated rain. After a week, they collected the liquid in
a flask and analyzed the chemicals therein. They found that amino acids (amino acids are the
R
basic elements of proteins, which are the building blocks of living cells) were created. This
experiment was claimed as proof for Oparin's hypothesis.
Who developed the endosymbiont theory? - ANS Lynn Margulis
U
What did the endosymbiont theory state? - ANS
origin of eukaryotic cells from prokaryotic organisms.
The leading evolutionary theory of the
LA
Who was Hooke? - ANS _________ discovered microscopes and named "cells".
Who was Leeuwenhoek? - ANS _________ was the first person to observe living cells and
is credited with the first microscope development.
C
Who were instrumental in the development of the key components of the cell theory? - ANS
Robert Hooke, Anton Van Leeuwenhoek, Matthias Schleiden, Theodore Schwann, Remak,
Virchow
O
Why does an electron microscope provide better images than a compound microscope? - ANS
___________'s use electrons for light, which have much shorter wavelengths than visible light,
which allows ________ microscopes to produce higher-resolution images as opposed to
D
_________ microscopes.
What is the difference between a scanning electron microscope and a transmission electron
microscope? - ANS The main difference between SEM and TEM is that SEM creates an
image by detecting reflected or knocked-off electrons, while TEM uses transmitted electrons
(electrons that are passing through the sample) to create an image.
What is the magnification of an oil immersion lens? - ANS 100
AND ANSWER A+ GRADED!!!
A
R
U
LA
C
O
D
,Describe each of the 7 characteristics of living things. - ANS Metabolism, Responds to
stimuli, Growth & Development, Reproduction, Evolve & Adapt, Composed of Cells,
Homeostasis. (M.R. G.R.E.C.H.)
What is the difference between a producer and a consumer? - ANS a producer produces
its own food through photosynthesis or other chemical pathways while a consumer must obtain
A
its energy by eating other organisms.
How does metabolism relate to catabolism and anabolism? - ANS Anabolism is the
R
building up substances, catabolism is the breaking down substances to release energy .
Therefore, anabolism + catabolism = metabolism.
What is the difference between asexual and sexual reproduction? - ANS Sexual
U
reproduction involves 2 organisms, asexual involves 1, outcome is identical to parent in asexual
and different in sexual.
LA
Define and give examples of unicellular and multicellular organisms. - ANS Unicellular: one
celled organism (diatoms, Protista, bacteria)
Multicellular: more than one celled organism (human, dog, cow)
What is homeostasis? - ANS Process by which organisms maintain a relatively stable
internal environment.
C
Are viruses, viroids and prions alive? Why or why not? - ANS Viruses, viroids and prions
are non-living as they do not contain all the 7 characteristics of life.
O
What is another name for abiogenesis? - ANS spontaneous generation
What is spontaneous generation? - ANS the theory that life appears from nonliving things.
D
Describe Redi's experiment. - ANS Took 2 jars, both which contained meat. One jar was
covered and the other jar was left uncovered. the uncovered jar had maggots while the covered
jar had nothing. (Disproved Abiogenesis)
Needham and Spallanzani had similar experiments. What were the differences? - ANS
Needham: Wanted to prove abiogenesis: he loosely sealed flasks, and then boiled them. Over a
period of time, the flasks became contaminated with bacteria. Yielding the result of loose seal =
life in flask. ("Proved" Abiogenesis)
, Spallanzani: Wanted to disprove abiogenesis: disagreed with Needham so he boiled the flasks
of meat broth longer and then sealed the top shut, resulting in no growth.
Who disproved abiogenesis with a swan-necked flask? - ANS Louis Pasteur
Who was Alexander Oparin? - ANS A russian biochemist who hypothesized chemical
evolution.
Describe the Miller-Urey experiment. - ANS Attempted to prove Oparin's hypothesis, two
American scientists, carried out an experiment in which they attempted to simulate early earth
conditions. They mixed water vapour with ammonia, methane, and hydrogen gases. They then
A
sent an electric current that simulated lightning through the mixture. Then they cooled the
mixture of gases, producing a liquid that simulated rain. After a week, they collected the liquid in
a flask and analyzed the chemicals therein. They found that amino acids (amino acids are the
R
basic elements of proteins, which are the building blocks of living cells) were created. This
experiment was claimed as proof for Oparin's hypothesis.
Who developed the endosymbiont theory? - ANS Lynn Margulis
U
What did the endosymbiont theory state? - ANS
origin of eukaryotic cells from prokaryotic organisms.
The leading evolutionary theory of the
LA
Who was Hooke? - ANS _________ discovered microscopes and named "cells".
Who was Leeuwenhoek? - ANS _________ was the first person to observe living cells and
is credited with the first microscope development.
C
Who were instrumental in the development of the key components of the cell theory? - ANS
Robert Hooke, Anton Van Leeuwenhoek, Matthias Schleiden, Theodore Schwann, Remak,
Virchow
O
Why does an electron microscope provide better images than a compound microscope? - ANS
___________'s use electrons for light, which have much shorter wavelengths than visible light,
which allows ________ microscopes to produce higher-resolution images as opposed to
D
_________ microscopes.
What is the difference between a scanning electron microscope and a transmission electron
microscope? - ANS The main difference between SEM and TEM is that SEM creates an
image by detecting reflected or knocked-off electrons, while TEM uses transmitted electrons
(electrons that are passing through the sample) to create an image.
What is the magnification of an oil immersion lens? - ANS 100
