Biology Exam 1 (Chapters 1-6) |400 Complete Q’s and A’s
Which of the following attributes is common to both prokaryotic cells and eukaryotic cells?
- -the use of DNA as the information-storage molecule
-Which taxonomic domain includes multicellular photosynthetic organisms? - -Eukarya
-What does it mean to say that a gene is expressed? - -Information in DNA is used to make
a protein
-How many different kinds of nucleotides does DNA contain? - -4: A, C, T, G
-Why doesn't a skin cell make crystallin protein? - -1.) Skin cells have the crystallin gene
but do not express it.
2.) Skin cells do not need crystallin for their function.
-Natural vs Manipulative Experiments - -Natural: Blood concentrations of BPA in college
students are compared to their recent consumption of canned food items.
2. Natural: The feeding behavior of fish in streams that receive acidic runoff from strip
mines is compared to the feeding behavior of fish in unaffected streams.
3. Natural: The deformity rate in baby birds from nests in pesticide-sprayed fields is
compared to the deformity rate in birds from nests in unsprayed fields.
4. Manipulative: Tumor development is compared in mice exposed to five dosages of a
known carcinogen in the laboratory.
5. Manipulative: Foraging activity levels are compared in tadpoles exposed to four
concentrations of toxic metals in the laboratory.
6. Manipulative: Growth of corn plants is compared in field plots sprayed with three
different dosages of weed killer.
7. Natural: BPA concentrations in the urine of people with diabetes are compared to BPA
concentrations in the urine of people without diabetes.
-DNA is composed of building blocks called - -nucleotides
-In eukaryotic cells DNA has the appearance of a - -double helix
-Which of the following statements about cells is correct? - -Both prokaryotic and
eukaryotic organisms are made up of cells.
-Which of the following types of cells use deoxyribonucleic acid (DNA) as their genetic
material but do not have their DNA encased within a nuclear envelope? - -archaean
-To understand the chemical basis of inheritance, we must understand the molecular
structure of DNA. This is an example of the application of which concept to the study of
biology? - -reductionism
,-What is the correct order for the hierarchy of biological organization from the least to the
most complex? - -molecule, organelle, cell, tissue, organ, organism, population, community,
ecosystem, biosphere
-No amino acid molecule by itself can speed up or catalyze reactions between other
molecules. However, when amino acids are joined together to make a protein with catalytic
properties, the new structure (enzymatic protein) can speed up the rate of a specific
chemical reaction. What does this illustrate? - -emergent properties
-Which of the following statements about chemical nutrients in an ecosystem is correct? - -
They recycle within the ecosystem, being constantly reused.
-How does DNA (deoxyribonucleic acid) encode information? - -information is encoded in
the sequence of nucleotides
-Which of the following statements is true regarding the complexity of biological systems?
- -Knowing the function of a component of a living system can provide insights into the
structure and organization of the living system.
-Apple on tree ripens ripe apple produces ethylene ethylene signals neighboring apples to
ripen neighbor apples produce more ethylene more apples ripen. The above process is an
example of which of the following? - -positive feedback regulation
-As letters are to English language, ________ is/are to genetic information. - -nucleotides
-Which of the following question is considered a thought-provoking scientific query? - -
How many tigers are left in India?
-All the organisms on your campus make up - -a community
-The universal genetic language of DNA is common to virtually all organisms on Earth,
however diverse. What is the best explanation for this fact? - -All living things share a
common genetic language of DNA because they share a common ancestry.
-Which example illustrates a property that emerges at the community level? - -Metabolic
cooperation among many species of prokaryotic cells forms a biofilm that allows bacterial
colonies to transport nutrients and wastes. Biofilms may damage industrial equipment or
cause tooth decay.
-Select the most accurate statement about the interaction between a tree and its physical
environment. - -A tree and its physical environment alter each other.
-Select the correct statement about the process of scientific inquiry. - -It is possible to test
hypotheses, such as those involving historical events, without conducting experiments.
, -Which of these examples illustrates deductive reasoning? - -You learned in elementary
school that as temperature drops, liquids change into solid form. You are given an
unfamiliar liquid and predict that it will become solid if you put it in the freezer.
-Systems biology is mainly an attempt to - -understand the behavior of entire biological
systems by studying interactions among its component parts.
-Which of these best demonstrates unity among organisms? - -the structure and function
of DNA
-A controlled experiment is one that - -tests experimental and control groups in parallel.
-Which of the following statements best distinguishes hypotheses from theories in science?
- -Hypotheses usually are relatively narrow in scope; theories have broad explanatory
power.
-Which of the following is an example of qualitative data? - -The fish swam in a zigzag
motion.
-Which sentence best describes the logic of scientific inquiry? - -If my prediction turns out
to be correct, my hypothesis is supported.
-You are a family practitioner. Which of the following patients you see is most likely to
need Vitamin D supplements? - -A woman with dark brown skin who lives in Michigan.
-Why is milk often fortified with Vitamin D? - -Vitamin D is associated with calcium
uptake.
-You are a registered dietician. Which of the following clients is most likely to benefit from
taking a fish oil supplement? - -Someone who rarely eats fish.
-If the results of this study prove correct, taking a fish oil supplement is most likely to
benefit which of the following type of person? - -A person with an increased risk of heart
attack.
-You have your blood tested. The results show that you have adequate levels of Vitamin D.
Which of the following would likely be best for you? - -Not take a Vitamin D supplement.
-A(n) _____ refers to two or more atoms held together by covalent bonds. - -molecule
-This atom can form up to _____ single covalent bond(s). - -4
-A(n) _____ bond joins these two oxygen atoms. - -double covalent
-The brackets are indicating a(n) _____ bond. - -hydrogen
Which of the following attributes is common to both prokaryotic cells and eukaryotic cells?
- -the use of DNA as the information-storage molecule
-Which taxonomic domain includes multicellular photosynthetic organisms? - -Eukarya
-What does it mean to say that a gene is expressed? - -Information in DNA is used to make
a protein
-How many different kinds of nucleotides does DNA contain? - -4: A, C, T, G
-Why doesn't a skin cell make crystallin protein? - -1.) Skin cells have the crystallin gene
but do not express it.
2.) Skin cells do not need crystallin for their function.
-Natural vs Manipulative Experiments - -Natural: Blood concentrations of BPA in college
students are compared to their recent consumption of canned food items.
2. Natural: The feeding behavior of fish in streams that receive acidic runoff from strip
mines is compared to the feeding behavior of fish in unaffected streams.
3. Natural: The deformity rate in baby birds from nests in pesticide-sprayed fields is
compared to the deformity rate in birds from nests in unsprayed fields.
4. Manipulative: Tumor development is compared in mice exposed to five dosages of a
known carcinogen in the laboratory.
5. Manipulative: Foraging activity levels are compared in tadpoles exposed to four
concentrations of toxic metals in the laboratory.
6. Manipulative: Growth of corn plants is compared in field plots sprayed with three
different dosages of weed killer.
7. Natural: BPA concentrations in the urine of people with diabetes are compared to BPA
concentrations in the urine of people without diabetes.
-DNA is composed of building blocks called - -nucleotides
-In eukaryotic cells DNA has the appearance of a - -double helix
-Which of the following statements about cells is correct? - -Both prokaryotic and
eukaryotic organisms are made up of cells.
-Which of the following types of cells use deoxyribonucleic acid (DNA) as their genetic
material but do not have their DNA encased within a nuclear envelope? - -archaean
-To understand the chemical basis of inheritance, we must understand the molecular
structure of DNA. This is an example of the application of which concept to the study of
biology? - -reductionism
,-What is the correct order for the hierarchy of biological organization from the least to the
most complex? - -molecule, organelle, cell, tissue, organ, organism, population, community,
ecosystem, biosphere
-No amino acid molecule by itself can speed up or catalyze reactions between other
molecules. However, when amino acids are joined together to make a protein with catalytic
properties, the new structure (enzymatic protein) can speed up the rate of a specific
chemical reaction. What does this illustrate? - -emergent properties
-Which of the following statements about chemical nutrients in an ecosystem is correct? - -
They recycle within the ecosystem, being constantly reused.
-How does DNA (deoxyribonucleic acid) encode information? - -information is encoded in
the sequence of nucleotides
-Which of the following statements is true regarding the complexity of biological systems?
- -Knowing the function of a component of a living system can provide insights into the
structure and organization of the living system.
-Apple on tree ripens ripe apple produces ethylene ethylene signals neighboring apples to
ripen neighbor apples produce more ethylene more apples ripen. The above process is an
example of which of the following? - -positive feedback regulation
-As letters are to English language, ________ is/are to genetic information. - -nucleotides
-Which of the following question is considered a thought-provoking scientific query? - -
How many tigers are left in India?
-All the organisms on your campus make up - -a community
-The universal genetic language of DNA is common to virtually all organisms on Earth,
however diverse. What is the best explanation for this fact? - -All living things share a
common genetic language of DNA because they share a common ancestry.
-Which example illustrates a property that emerges at the community level? - -Metabolic
cooperation among many species of prokaryotic cells forms a biofilm that allows bacterial
colonies to transport nutrients and wastes. Biofilms may damage industrial equipment or
cause tooth decay.
-Select the most accurate statement about the interaction between a tree and its physical
environment. - -A tree and its physical environment alter each other.
-Select the correct statement about the process of scientific inquiry. - -It is possible to test
hypotheses, such as those involving historical events, without conducting experiments.
, -Which of these examples illustrates deductive reasoning? - -You learned in elementary
school that as temperature drops, liquids change into solid form. You are given an
unfamiliar liquid and predict that it will become solid if you put it in the freezer.
-Systems biology is mainly an attempt to - -understand the behavior of entire biological
systems by studying interactions among its component parts.
-Which of these best demonstrates unity among organisms? - -the structure and function
of DNA
-A controlled experiment is one that - -tests experimental and control groups in parallel.
-Which of the following statements best distinguishes hypotheses from theories in science?
- -Hypotheses usually are relatively narrow in scope; theories have broad explanatory
power.
-Which of the following is an example of qualitative data? - -The fish swam in a zigzag
motion.
-Which sentence best describes the logic of scientific inquiry? - -If my prediction turns out
to be correct, my hypothesis is supported.
-You are a family practitioner. Which of the following patients you see is most likely to
need Vitamin D supplements? - -A woman with dark brown skin who lives in Michigan.
-Why is milk often fortified with Vitamin D? - -Vitamin D is associated with calcium
uptake.
-You are a registered dietician. Which of the following clients is most likely to benefit from
taking a fish oil supplement? - -Someone who rarely eats fish.
-If the results of this study prove correct, taking a fish oil supplement is most likely to
benefit which of the following type of person? - -A person with an increased risk of heart
attack.
-You have your blood tested. The results show that you have adequate levels of Vitamin D.
Which of the following would likely be best for you? - -Not take a Vitamin D supplement.
-A(n) _____ refers to two or more atoms held together by covalent bonds. - -molecule
-This atom can form up to _____ single covalent bond(s). - -4
-A(n) _____ bond joins these two oxygen atoms. - -double covalent
-The brackets are indicating a(n) _____ bond. - -hydrogen
