biology 1001 LSU exam 1 Adam H 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: Photosynthetic bacteria are examples of autotrophs. True or False? - true
CHAPTER 1: The variation among individuals, on which natural selection acts, is? - genetic
differences/ mutations
CHAPTER 1: Why do heterotrophs require "food" for survival? - food provides the organic
chemicals needed
when a generalization is used to make predictions - deductive reasoning
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 did what? - disprove the idea of spontaneous
generation
CHAPTER 1: All of the following are scientific principles that underlie scientific inquiry
EXCEPT? - natural selection
generalizations based on many observations that support it and none that contradict it - inductive
reasoning
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.
Who invented binomial nomenclature? - Linnaeus
What are the three subatomic particles and their charges? - proton- positive
neutron- neutral
electron- negative
CHAPTER 2: If a substance measures evenly (7) on the pH scale, that substance has an 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? - create 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: What 2 things are TRUE about waxes? - they are saturated fats
solid at normal outdoor temperatures
CHAPTER 3: The fiber in your diet is actually? - cellulose
Glycogen is a polysaccharide formed by joining what together? - excess monosaccharides of
glucose
CHAPTER 3: In dehydration synthesis, the atoms that make up a water molecule are derived
from? - both of the reactants
, CHAPTER 3: The group of biological molecules that are most diverse in function is? - proteins
CHAPTER 3: Your friend is trying to learn how to kill bacteria. She reads that preservatives
such as citric acid are added to foods because the acidic environment kills bacteria by denaturing
their proteins. She thinks this sounds like a lot of scientific jargon and asks you what it means.
How can you explain it in simpler terms? - the proteins of the bacteria lose their structure and
can't function from the citric acid, so the bacteria die
CHAPTER 3: Which of these is NOT a nucleic acid or nucleotide? DNA, RNA, LDL - LDL
What does the cytoplasm of eukaryotic cells not contain? - chromosomes
disorganized version of chromosomes that appears in the nuclues - chromatin
organelle that binds messenger RNA and transfer RNA to synthesize polypeptides and proteins -
ribosomes
CHAPTER 4: Which of the following is the smallest? eukaryotes, prokaryotes, virus,
mitochondrian - virus
CHAPTER 4: What is NOT a feature of a prokaryotic cell? ribosomes, DNA, nuclear membrane,
plasma membrane - nuclear membrane
CHAPTER 4: Which cellular organelle packages enzymes and forms lysosomes? - golgi
apparatus
CHAPTER 4: Membrane proteins are synthesized on ribosomes that are found where? - rough
endoplasmic reticulum
CHAPTER 4: Which of the following is the thinnest? microtubules, microfilaments, filaments -
microfilament
CHAPTER 4: The formation of ATP in the mitochondria, which is an oxygen-dependent
reaction, is called what? - aerobic metabolism
CHAPTER 4: What is the difference between "free" and "attached" ribosomes? - Free occur in
the cytoplasm, attached are found on the endoplasmic reticulum
CHAPTER 4: Which of the following is NOT a function of plastids?
(A) manufacture chemical compounds
(B) store food
(C) contain pigments used in photosynthesis
(D) extract energy from food and convert to ATP - (D) extract energy from food and convert to
ATP
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: Photosynthetic bacteria are examples of autotrophs. True or False? - true
CHAPTER 1: The variation among individuals, on which natural selection acts, is? - genetic
differences/ mutations
CHAPTER 1: Why do heterotrophs require "food" for survival? - food provides the organic
chemicals needed
when a generalization is used to make predictions - deductive reasoning
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 did what? - disprove the idea of spontaneous
generation
CHAPTER 1: All of the following are scientific principles that underlie scientific inquiry
EXCEPT? - natural selection
generalizations based on many observations that support it and none that contradict it - inductive
reasoning
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.
Who invented binomial nomenclature? - Linnaeus
What are the three subatomic particles and their charges? - proton- positive
neutron- neutral
electron- negative
CHAPTER 2: If a substance measures evenly (7) on the pH scale, that substance has an 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? - create 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: What 2 things are TRUE about waxes? - they are saturated fats
solid at normal outdoor temperatures
CHAPTER 3: The fiber in your diet is actually? - cellulose
Glycogen is a polysaccharide formed by joining what together? - excess monosaccharides of
glucose
CHAPTER 3: In dehydration synthesis, the atoms that make up a water molecule are derived
from? - both of the reactants
, CHAPTER 3: The group of biological molecules that are most diverse in function is? - proteins
CHAPTER 3: Your friend is trying to learn how to kill bacteria. She reads that preservatives
such as citric acid are added to foods because the acidic environment kills bacteria by denaturing
their proteins. She thinks this sounds like a lot of scientific jargon and asks you what it means.
How can you explain it in simpler terms? - the proteins of the bacteria lose their structure and
can't function from the citric acid, so the bacteria die
CHAPTER 3: Which of these is NOT a nucleic acid or nucleotide? DNA, RNA, LDL - LDL
What does the cytoplasm of eukaryotic cells not contain? - chromosomes
disorganized version of chromosomes that appears in the nuclues - chromatin
organelle that binds messenger RNA and transfer RNA to synthesize polypeptides and proteins -
ribosomes
CHAPTER 4: Which of the following is the smallest? eukaryotes, prokaryotes, virus,
mitochondrian - virus
CHAPTER 4: What is NOT a feature of a prokaryotic cell? ribosomes, DNA, nuclear membrane,
plasma membrane - nuclear membrane
CHAPTER 4: Which cellular organelle packages enzymes and forms lysosomes? - golgi
apparatus
CHAPTER 4: Membrane proteins are synthesized on ribosomes that are found where? - rough
endoplasmic reticulum
CHAPTER 4: Which of the following is the thinnest? microtubules, microfilaments, filaments -
microfilament
CHAPTER 4: The formation of ATP in the mitochondria, which is an oxygen-dependent
reaction, is called what? - aerobic metabolism
CHAPTER 4: What is the difference between "free" and "attached" ribosomes? - Free occur in
the cytoplasm, attached are found on the endoplasmic reticulum
CHAPTER 4: Which of the following is NOT a function of plastids?
(A) manufacture chemical compounds
(B) store food
(C) contain pigments used in photosynthesis
(D) extract energy from food and convert to ATP - (D) extract energy from food and convert to
ATP
