BIOLOGY 1010 WEEK 1 (QUIZ) QUESTIONS
AND ANSWERS
The total genetic content of an organism is known as its - ANSWER genome
Suppose a scientist was able to take pictures of atoms and the position of their
electrons. In one molecule, he found that the shared electron was around one
atom 50% of the time and around the second atom 50% of the time. From this
he concluded that these atoms shared what type of bond? - ANSWER nonpolar
covalent
Which of the following is not a testable hypothesis? ANSWER dogs are happier
when they are walked regularly
The chlorine atom has 17 electrons and the sodium atom has 11 electrons. These
two atoms combine to form NaCl. After NaCl is ionized in water, how many
electrons are in the chlorine ion? ANSWER 18
If you could measure the charge coming from various parts of an atom, what
charge would the nucleus have? - ANSWER positive
An atom with 7 electrons in its outer shell will most likely bond with -
ANSWER An atom with 1 electron in its outer shell.
A researcher is examining swimming speed in goldfish. She catches 20 goldfish
from a large tank holding 100 goldfish by using a small net and has them swim
along a narrow raceway one at a time. This is done for measuring the speed at
which each of them swims, so that an average can be obtained regarding how
, fast a goldfish swims. All fish were held at the same temperature, were fed the
same food, swim the same distance and were the same age and gender. What is
wrong with her experiment? - ANSWER She did not use a random sample
A researcher is interested in the effect of exercise on tumor growth in mice. She
takes 50 mice with tumors and makes them walk on the treadmill every day for
6 weeks. All of the mice received the same diet, were maintained under the
same conditions and were made to walk on the treadmill for the same quantity.
At the end of the experiment she measured the size of their tumors. What is the
single biggest flaw in her experimental design? - ANSWER She does not have
a control group
Beaches at a local lake have been closed due to high E. coli counts. The lake is
bounded by farmland and summer cabins. We know that all vertebrates differ in
the specific strains of E. coli that are in their intestines. Which is a hypothesis
about the source of the high E. coli counts? ANSWER Runoff from farms with
dairy cows is a source of high E. coli counts.
In science, a theory should - ANSWER -be considered to be knowledge
-be supported by a substantial amount of evidence
-allow many correct predictions to be made
Macromolecules are polymers and consist of monomers. For example
polysaccharides such as ___ are formed from the repeating monomer ___. -
ANSWER cellulose; glucose
You are a medical examiner and are analyzing the brain tissue of a subject who
died age 58. You observe a high level neurofibrillary tangles associated with
hyperphosphorylated tau but with no modified â-APP. From this you conclude
that this individual - ANSWER Was likely a boxer and died due to Chronic
Traumatic Encephalopathy
AND ANSWERS
The total genetic content of an organism is known as its - ANSWER genome
Suppose a scientist was able to take pictures of atoms and the position of their
electrons. In one molecule, he found that the shared electron was around one
atom 50% of the time and around the second atom 50% of the time. From this
he concluded that these atoms shared what type of bond? - ANSWER nonpolar
covalent
Which of the following is not a testable hypothesis? ANSWER dogs are happier
when they are walked regularly
The chlorine atom has 17 electrons and the sodium atom has 11 electrons. These
two atoms combine to form NaCl. After NaCl is ionized in water, how many
electrons are in the chlorine ion? ANSWER 18
If you could measure the charge coming from various parts of an atom, what
charge would the nucleus have? - ANSWER positive
An atom with 7 electrons in its outer shell will most likely bond with -
ANSWER An atom with 1 electron in its outer shell.
A researcher is examining swimming speed in goldfish. She catches 20 goldfish
from a large tank holding 100 goldfish by using a small net and has them swim
along a narrow raceway one at a time. This is done for measuring the speed at
which each of them swims, so that an average can be obtained regarding how
, fast a goldfish swims. All fish were held at the same temperature, were fed the
same food, swim the same distance and were the same age and gender. What is
wrong with her experiment? - ANSWER She did not use a random sample
A researcher is interested in the effect of exercise on tumor growth in mice. She
takes 50 mice with tumors and makes them walk on the treadmill every day for
6 weeks. All of the mice received the same diet, were maintained under the
same conditions and were made to walk on the treadmill for the same quantity.
At the end of the experiment she measured the size of their tumors. What is the
single biggest flaw in her experimental design? - ANSWER She does not have
a control group
Beaches at a local lake have been closed due to high E. coli counts. The lake is
bounded by farmland and summer cabins. We know that all vertebrates differ in
the specific strains of E. coli that are in their intestines. Which is a hypothesis
about the source of the high E. coli counts? ANSWER Runoff from farms with
dairy cows is a source of high E. coli counts.
In science, a theory should - ANSWER -be considered to be knowledge
-be supported by a substantial amount of evidence
-allow many correct predictions to be made
Macromolecules are polymers and consist of monomers. For example
polysaccharides such as ___ are formed from the repeating monomer ___. -
ANSWER cellulose; glucose
You are a medical examiner and are analyzing the brain tissue of a subject who
died age 58. You observe a high level neurofibrillary tangles associated with
hyperphosphorylated tau but with no modified â-APP. From this you conclude
that this individual - ANSWER Was likely a boxer and died due to Chronic
Traumatic Encephalopathy
