Chapter 1: An Introduction to the Science of Life
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Q1) Which of the following represents a blind study?
A) The test group knows whether they are receiving a placebo or the actual treatment, and so do the researchers.
B) The test group does not know whether they are receiving a placebo or the actual treatment, but the researchers do.
C) The test group knows whether they are receiving a placebo or the actual treatment, but the researchers do not know until all the data are collected.
D) Neither the test group nor the researchers know whether the test group is receiving a placebo or the actual treatment until all the data are collected.
Answer: B
Q2) Which of the following statements cannot be tested by science?
A) Male lions sleep 20 hours a day.
B) Male lions have brown manes.
C) It is wrong that male lions kill baby lions when taking over a new pride.
D) All statements can be tested by science.
Answer: C
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Chapter 2: The Chemistry of Life
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Q1) What is the basic structure of most lipids?
A) A glycerol head and up to three fatty acid tails
B) A linear chain of individual monomers
C) A branched chain of individual monomers
D) A chain of fatty acid tails
Answer: A
Q2) What might happen if a protein has a change in one amino acid?
A) The amino acid chain folds incorrectly.
B) The protein can no longer function properly.
C) The protein has a new shape.
D) All of these happen.
Answer: D
Q3) Which of the following is a polysaccharide?
A) Glucose
B) Cellulose
C) Fructose
D) Sucrose
Answer: A
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Chapter 3: The Cell: The Fundamental Unit of Life
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Q1) How many layers of phospholipids make up the plasma membrane?
A) 1
B) 2
C) 3
D) 4
Answer: B
Q2) The cytoskeleton has several primary functions.The first and most obvious is that it acts as an interior skeleton that supports the rest of the cell.What is another function of the cytoskeleton?
A) It provides a communication network whereby chemo-electrical signals can be sent from one area of the cell to another.
B) It creates a durable outer covering to increase the strength and rigidity of the cell.
C) It provides a series of tracks along which vesicles can move throughout the cell.
D) It connects one cell to another.
Answer: C
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Chapter 4: Energy and Life
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Q1) Which of the following can carry out photosynthesis?
A) Seaweeds
B) Bacteria
C) Plants
D) All of the above can carry out photosynthesis
Q2) Which processes can be carried out by producers?
A) Only photosynthesis
B) Only cellular respiration
C) Both photosynthesis and cellular respiration
D) Neither photosynthesis nor cellular respiration
Q3) What is a photosystem?
A) Stacks of thylakoids
B) A double-membrane organelle containing thylakoids
C) Clusters of pigments and proteins that capture light energy
D) A leaf or any green part of the plant
Q4) Identify the role of oxygen in photosynthesis.
A) It is split to form sugar.
B) It is the final electron acceptor.
C) It is a waste product in the light reactions.
D) It is the initial electron releaser.
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Chapter 5: Chromosomes and Inheritance
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Q1) DNA plus its associated proteins is called a ________.
A) centromere
B) gene
C) chromatin
D) genome
Q2) What specifically separates during meiosis I?
A) Homologous chromosomes
B) Sister chromatids
C) The cytoplasm
D) The genome
Q3) Define Mendel's law of independent assortment.
A) The inheritance of one character has no effect on the inheritance of another character.
B) Segregation of homologous chromosomes is random.
C) The expression of one gene has no effect on the expression of another gene.
D) There are two versions of each trait, a dominant and a recessive; the one you get is random.
Q4) Why are individuals with Turner syndrome always female and individuals with Klinefelter syndrome always male?
Q5) Which phase of meiosis is most similar to mitosis,and why?
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Chapter 6: Dna: the Molecule of Life
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Q1) Gene cloning is used to ________.
A) make other organisms, such as Dolly, the first cloned sheep
B) produce large quantities of human proteins
C) cure genetic disorders
D) help cure cancer
Q2) How does a cell typically know when to divide?
A) Cells have an internal clock and divide only when they reach a certain age.
B) Tumor suppressor genes code for growth factor proteins that initiate cell division.
C) Proto-oncogenes code for growth factor proteins that initiate cell division.
D) Oncogenes code for growth factor proteins that initiate cell division.
Q3) What is different from one DNA nucleotide to the next?
A) The sugar molecule
B) The phosphate group
C) The base
D) The protein
Q4) True or false? Humans contain more genes in their genome than any other species on Earth.
A)True
B)False
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Chapter 7: Darwinian Evolution
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Q1) A weed that exhibits resistance to an herbicide ________.
A) developed the resistance in response to the herbicide
B) mutated when exposed to the herbicide
C) inherited the gene that made it resistant to the herbicide
D) is less likely to pass on the gene to the next generation
Q2) If two organisms of different species share more similar DNA sequences with each other than with other species,we can conclude that ________.
A) these two species are not closely related
B) these two species are very closely related
C) these two species happen to share similar DNA by chance
D) there is no relationship between similar DNA and how closely related organisms are
Q3) What defines a population in evolution?
A) Members of the same group that share a common ancestor
B) Members of a single species
C) Interbreeding members of the same species
D) Multiple species interacting together
Q4) If a changing environment increases rates of evolution,why do we see an increase in extinction rates following rapid global catastrophes?
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Chapter 9: Biodiversity 2: Fungi and Plants
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Q1) Most of our food crops come from angiosperms.
A)True
B)False
Q2) What are the three tissue systems of plants contained in each plant organ,such as leaves?
A) Dermal, cell wall, and vascular tissue systems
B) Ground, germ, and vascular tissue systems
C) Dermal, ground, and vascular tissue systems
D) Ground, mesophyll, and vascular tissue systems
Q3) Which is not a characteristic of the gymnosperms?
A) Cones
B) Seeds
C) Pollen
D) Flowers
Q4) What is the reproductive organ of angiosperms?
A) Cones
B) Flowers
C) Seeds
D) Fruits
Q5) Name four ways roots benefit a plant.
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Chapter 10: Biodiversity 3: Animals
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Q1) Which subgroup of mammals raises their young in pouches?
A) Marsupials
B) Monotremes
C) Eutherians
D) Cetaceans
Q2) The radial symmetry of adult echinoderms could best be described as ________.
A) biradial
B) bilateral
C) fourfold symmetrical
D) fivefold symmetrical
Q3) Which phylum is most closely related to the arthropods?
A) Mollusks
B) Echinoderms
C) Roundworms
D) Annelids
Q4) Parasites have often been described incorrectly as having "devolved" from a more highly evolved organism.Why would it be more accurate to say that they are just as evolved as any other organism?
Q5) How might an early primate's environment lead to the evolution of a large brain in relation to body size?
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Chapter 11: Human Body Systems
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Q1) What is the name of the response to an injury in which fluids leak from dilated blood vessels,causing redness and swelling?
A) Innate response
B) Inflammatory response
C) Compliment response
D) Lymphatic response
Q2) The release of an egg from an ovary is called ________.
A) oogenesis
B) gametogenesis
C) ovulation
D) menstruation
Q3) How is an adaptive defense initially primed?
A) Upon exposure to a foreign antigen
B) Complement proteins identify a cell as foreign
C) Antibodies bind to surface markers of a foreign cell
D) By way of the clonal selection of effector cells
Q4) Describe the role of the two antagonistic hormones involved in the feedback loop that maintains the level of glucose in the blood.Which organs are involved,and what type of feedback is this?
Q5) Of the four chambers of the human heart,which has the thickest walls,and why?
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