Biology 1001 LSU exam 1 Adam H Test
Questions with Complete Answers.
CHAPTER 1: To test the effect of vitamin D on growth, two groups of rats were raised under
identical
conditions and fed the same diet. One of the groups received daily injections of vitamin D. The
other group
received injections of saline, which did not contain vitamin D. All the rats were weighed weekly
for 2 months.
In this experiment, the control was the? - Answer group receiving saline
CHAPTER 1: A good experiment should include as many variables as possible at the same time.
True or
False? - Answer false
CHAPTER 1: Photosynthetic bacteria are examples of autotrophs. True or False? - Answer
true
CHAPTER 1: The variation among individuals, on which natural selection acts, is? - Answer
genetic differences
CHAPTER 1: Why do heterotrophs require "food" for survival? - Answer food provides the
organic chemicals needed by heterotrophs
CHAPTER 1: Science cannot answer certain moral questions because? - Answer moral values
differ among individuals
CHAPTER 1: Imagine that 1 milliliter of an experimental drug diluted in a saline solution is
injected
into 20 pregnant mice to determine possible side effects. Which of the following is a suitable
control for this
experiment? - Answer 20 pregnant mice injected with 1 milliliter of saline
CHAPTER 1: The experiments of Francesco Redi? - Answer disprove the idea of spontaneous
generation
CHAPTER 1: All of the following are scientific principles that underlie scientific inquiry EXCEPT? -
Answer natural selection
, CHAPTER 1: Which of the following is an example of deductive reasoning? - Answer if a new
species of bacteria is discovered, it will be made up of organic molecules
CHAPTER 2: Isotopes are atoms of the same element that have different numbers of protons.
True or
False? - Answer false
CHAPTER 2: A single covalent chemical bond represents the sharing of how many electrons? -
Answer 2
CHAPTER 2: If you place a paper towel in a dish of water, the water will? - Answer move up
the towel as the water adheres to the paper towel while the cohesive water molecules stay
bound to
each other.
CHAPTER 2: If a substance measures 7 on the pH scale, that substance? - Answer has equal
concentration of H+ and OH- ions
CHAPTER 2: Which of the following could potentially be a free radical? - Answer oxygen
(atomic number 8)
CHAPTER 2: What happens when hydrochloric acid (HCl) is added to pure water? - Answer
The HCl molecules separate into H+ and Cl- ions.
CHAPTER 2: Carbon-14 is often used for carbon dating, where scientists measure the rate of
carbon-14
decay to determine the age of items. Carbon-14 contains six protons and eight neutrons. During
the process of
carbon-14 decay, one of its eight neutrons becomes a proton and an electron is emitted. Which
of the following
is the BEST explanation of what has occurred? - Answer The resulting atom is now a different
element because the number of protons has changed.
CHAPTER 2: As ice melts, it? - Answer absorbs heat from its surroundings
CHAPTER 2: How do buffers work? - Answer They accept or release OH- .
Questions with Complete Answers.
CHAPTER 1: To test the effect of vitamin D on growth, two groups of rats were raised under
identical
conditions and fed the same diet. One of the groups received daily injections of vitamin D. The
other group
received injections of saline, which did not contain vitamin D. All the rats were weighed weekly
for 2 months.
In this experiment, the control was the? - Answer group receiving saline
CHAPTER 1: A good experiment should include as many variables as possible at the same time.
True or
False? - Answer false
CHAPTER 1: Photosynthetic bacteria are examples of autotrophs. True or False? - Answer
true
CHAPTER 1: The variation among individuals, on which natural selection acts, is? - Answer
genetic differences
CHAPTER 1: Why do heterotrophs require "food" for survival? - Answer food provides the
organic chemicals needed by heterotrophs
CHAPTER 1: Science cannot answer certain moral questions because? - Answer moral values
differ among individuals
CHAPTER 1: Imagine that 1 milliliter of an experimental drug diluted in a saline solution is
injected
into 20 pregnant mice to determine possible side effects. Which of the following is a suitable
control for this
experiment? - Answer 20 pregnant mice injected with 1 milliliter of saline
CHAPTER 1: The experiments of Francesco Redi? - Answer disprove the idea of spontaneous
generation
CHAPTER 1: All of the following are scientific principles that underlie scientific inquiry EXCEPT? -
Answer natural selection
, CHAPTER 1: Which of the following is an example of deductive reasoning? - Answer if a new
species of bacteria is discovered, it will be made up of organic molecules
CHAPTER 2: Isotopes are atoms of the same element that have different numbers of protons.
True or
False? - Answer false
CHAPTER 2: A single covalent chemical bond represents the sharing of how many electrons? -
Answer 2
CHAPTER 2: If you place a paper towel in a dish of water, the water will? - Answer move up
the towel as the water adheres to the paper towel while the cohesive water molecules stay
bound to
each other.
CHAPTER 2: If a substance measures 7 on the pH scale, that substance? - Answer has equal
concentration of H+ and OH- ions
CHAPTER 2: Which of the following could potentially be a free radical? - Answer oxygen
(atomic number 8)
CHAPTER 2: What happens when hydrochloric acid (HCl) is added to pure water? - Answer
The HCl molecules separate into H+ and Cl- ions.
CHAPTER 2: Carbon-14 is often used for carbon dating, where scientists measure the rate of
carbon-14
decay to determine the age of items. Carbon-14 contains six protons and eight neutrons. During
the process of
carbon-14 decay, one of its eight neutrons becomes a proton and an electron is emitted. Which
of the following
is the BEST explanation of what has occurred? - Answer The resulting atom is now a different
element because the number of protons has changed.
CHAPTER 2: As ice melts, it? - Answer absorbs heat from its surroundings
CHAPTER 2: How do buffers work? - Answer They accept or release OH- .
