biology 1001 LSU exam 1 Adam H 4 QUESTIONS WITH
ANSWERS RATED A+
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? - group receiving saline
CHAPTER 1: A good experiment should include as many variables as possible at the same time.
True or
False? - false
CHAPTER 1: Photosynthetic bacteria are examples of autotrophs. True or False? - true
CHAPTER 1: The variation among individuals, on which natural selection acts, is? - genetic
differences
CHAPTER 1: Why do heterotrophs require "food" for survival? - food provides the organic
chemicals needed by heterotrophs
CHAPTER 1: Science cannot answer certain moral questions because? - 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? - 20 pregnant mice injected with 1 milliliter of saline
CHAPTER 1: The experiments of Francesco Redi? - disprove the idea of spontaneous generation
CHAPTER 1: All of the following are scientific principles that underlie scientific inquiry
EXCEPT? - natural selection
CHAPTER 1: Which of the following is an example of deductive reasoning? - 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? - false
, CHAPTER 2: A single covalent chemical bond represents the sharing of how many electrons? -
2
CHAPTER 2: If you place a paper towel in a dish of water, the water will? - 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? - has equal
concentration of H+ and OH- ions
CHAPTER 2: Which of the following could potentially be a free radical? - oxygen (atomic
number 8)
CHAPTER 2: What happens when hydrochloric acid (HCl) is added to pure water? - 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? - The resulting atom is now a different element
because the number of protons has changed.
CHAPTER 2: As ice melts, it? - absorbs heat from its surroundings
CHAPTER 2: How do buffers work? - They accept or release OH- .
CHAPTER 2: Unlike a rock, a reptile can sit in the hot sunshine without its body temperature
soaring
quickly. This is because the water in its body? - has a high specific heat
CHAPTER 3: Where is glycogen stored in vertebrate animals? - liver and muscles
CHAPTER 3: Large biological molecules are synthesized by removing? - water
CHAPTER 3: Which of the following is TRUE about waxes? - they are saturated fats and are
solid at normal outdoor temperatures
CHAPTER 3: Which of the following is NOT an organic molecule? - carbon monoxide
CHAPTER 3: The fiber in your diet is actually? - cellulose
CHAPTER 3: When the level of glucose in your blood is high, your body is able to store excess
glucose
ANSWERS RATED A+
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? - group receiving saline
CHAPTER 1: A good experiment should include as many variables as possible at the same time.
True or
False? - false
CHAPTER 1: Photosynthetic bacteria are examples of autotrophs. True or False? - true
CHAPTER 1: The variation among individuals, on which natural selection acts, is? - genetic
differences
CHAPTER 1: Why do heterotrophs require "food" for survival? - food provides the organic
chemicals needed by heterotrophs
CHAPTER 1: Science cannot answer certain moral questions because? - 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? - 20 pregnant mice injected with 1 milliliter of saline
CHAPTER 1: The experiments of Francesco Redi? - disprove the idea of spontaneous generation
CHAPTER 1: All of the following are scientific principles that underlie scientific inquiry
EXCEPT? - natural selection
CHAPTER 1: Which of the following is an example of deductive reasoning? - 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? - false
, CHAPTER 2: A single covalent chemical bond represents the sharing of how many electrons? -
2
CHAPTER 2: If you place a paper towel in a dish of water, the water will? - 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? - has equal
concentration of H+ and OH- ions
CHAPTER 2: Which of the following could potentially be a free radical? - oxygen (atomic
number 8)
CHAPTER 2: What happens when hydrochloric acid (HCl) is added to pure water? - 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? - The resulting atom is now a different element
because the number of protons has changed.
CHAPTER 2: As ice melts, it? - absorbs heat from its surroundings
CHAPTER 2: How do buffers work? - They accept or release OH- .
CHAPTER 2: Unlike a rock, a reptile can sit in the hot sunshine without its body temperature
soaring
quickly. This is because the water in its body? - has a high specific heat
CHAPTER 3: Where is glycogen stored in vertebrate animals? - liver and muscles
CHAPTER 3: Large biological molecules are synthesized by removing? - water
CHAPTER 3: Which of the following is TRUE about waxes? - they are saturated fats and are
solid at normal outdoor temperatures
CHAPTER 3: Which of the following is NOT an organic molecule? - carbon monoxide
CHAPTER 3: The fiber in your diet is actually? - cellulose
CHAPTER 3: When the level of glucose in your blood is high, your body is able to store excess
glucose
