BIO 2150 FUNDAMENTALS OF LIFE SCIENCE EXAM 1
(STEVENS) QUESTIONS WITH VERIFIED ANSWERS
The Scientific method steps - Answers - observation, hypothesis, predict, experiment,
theory
Observation - Answers - The act of viewing the world around us
Hypothesis - Answers - a tentative explanation
for one or more observations
Experimentation - Answers - a disciplined and controlled way of asking and answering
questions about the world in an unbiased manner
theory - Answers - If results are consistent over many experiments, hypothesis become
theories
Control Group - Answers - Does not get the treatment in an experiment
Treatment group - Answers - Does receive the treatment in an experiment
Living organisms are considered complex because - Answers - They are precisely
spatial organizations on several scales. They also have the ability to adapt to their
environment
organisms have the ability to - Answers - reproduce
Organisms have the capacity to - Answers - evolve
Spontaneous Generation - Answers - Life appearing from inanimate matter ( proved
wrong by Redi and Pasteur
Cells - Answers - The simplest self-replicating entity that can exist as an independent
unit of life
Essential features of cells - Answers - - Can store and transmit information
- have a plasma membrane
- can harness energy from the environment
- have a metabolism
- contain genetic material
Central Dogma of Biology - Answers - DNA -> RNA -> Protein
Cell plasma membrane - Answers - -surrounds the cell and mediates movement
, Two types of cell - Answers - - Prokaryotic
- Eukaryotic
Cells harness energy through two sources: - Answers - - Sun
- Chemical compounds
Organisms use chemical reactions to - Answers - breakdown molecules and store their
energy as ATP
Metabolism - Answers - - the sum of all chemical reactions
- reactions required to sustain life
Do viruses store and transmit information? - Answers - Yea boi
Are viruses separated from the environment? - Answers - yes
Do viruses reproduce? - Answers - yes
Can viruses harvest energy? - Answers - No
Evolution - Answers - -Change over time
- Both the unity and diversity of life are explained by this
- Example - natural selection
Genetic Variation - Answers - - mutations
- allele frequencies
- hardy weinberg equilibrium
Changes in allele frequencies - Answers - - Natural Selection
- Genetic drift
Genotype - Answers - the genetic makeup of a cell or
organism
Phenotype - Answers - physical appearance of an
organism; influenced by genotype
Mutation - Answers - A rare variation in the DNA
sequence
gene - Answers - A unit of heredity; DNA sequence
that codes for RNA
Alleles - Answers - different forms of a gene
(STEVENS) QUESTIONS WITH VERIFIED ANSWERS
The Scientific method steps - Answers - observation, hypothesis, predict, experiment,
theory
Observation - Answers - The act of viewing the world around us
Hypothesis - Answers - a tentative explanation
for one or more observations
Experimentation - Answers - a disciplined and controlled way of asking and answering
questions about the world in an unbiased manner
theory - Answers - If results are consistent over many experiments, hypothesis become
theories
Control Group - Answers - Does not get the treatment in an experiment
Treatment group - Answers - Does receive the treatment in an experiment
Living organisms are considered complex because - Answers - They are precisely
spatial organizations on several scales. They also have the ability to adapt to their
environment
organisms have the ability to - Answers - reproduce
Organisms have the capacity to - Answers - evolve
Spontaneous Generation - Answers - Life appearing from inanimate matter ( proved
wrong by Redi and Pasteur
Cells - Answers - The simplest self-replicating entity that can exist as an independent
unit of life
Essential features of cells - Answers - - Can store and transmit information
- have a plasma membrane
- can harness energy from the environment
- have a metabolism
- contain genetic material
Central Dogma of Biology - Answers - DNA -> RNA -> Protein
Cell plasma membrane - Answers - -surrounds the cell and mediates movement
, Two types of cell - Answers - - Prokaryotic
- Eukaryotic
Cells harness energy through two sources: - Answers - - Sun
- Chemical compounds
Organisms use chemical reactions to - Answers - breakdown molecules and store their
energy as ATP
Metabolism - Answers - - the sum of all chemical reactions
- reactions required to sustain life
Do viruses store and transmit information? - Answers - Yea boi
Are viruses separated from the environment? - Answers - yes
Do viruses reproduce? - Answers - yes
Can viruses harvest energy? - Answers - No
Evolution - Answers - -Change over time
- Both the unity and diversity of life are explained by this
- Example - natural selection
Genetic Variation - Answers - - mutations
- allele frequencies
- hardy weinberg equilibrium
Changes in allele frequencies - Answers - - Natural Selection
- Genetic drift
Genotype - Answers - the genetic makeup of a cell or
organism
Phenotype - Answers - physical appearance of an
organism; influenced by genotype
Mutation - Answers - A rare variation in the DNA
sequence
gene - Answers - A unit of heredity; DNA sequence
that codes for RNA
Alleles - Answers - different forms of a gene
