Biology I Exam Bank
Course Introduction
Biology I is an introductory course that explores the fundamental principles of life science, covering topics such as cell structure and function, genetics, evolution, ecology, and the diversity of living organisms. Students will develop an understanding of basic biological concepts and processes, including metabolism, homeostasis, and reproduction. Emphasis is placed on scientific inquiry, critical thinking, and the application of biological concepts to real-world issues. The course typically incorporates laboratory activities to reinforce the theoretical knowledge gained through lectures and readings.
Recommended Textbook
Campbell Essential Biology 6th Edition by Eric
J. Simon
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29 Chapters
1538 Verified Questions
1538 Flashcards
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Page 2
Chapter 1: Introduction: Biology Today
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Sample Questions
Q1) Dull-colored males were used in this experiment to ________.
A)serve as a comparison (control)group to the brightly colored males
B)be sure that females could recognize the gender of the other lizards
C)give the experiment more trials so that the data would be more persuasive
D)be sure all females had a male with which they could mate
Answer: A
Q2) Members of the kingdom Plantae differ from members of the other kingdoms of Eukarya in that most members of the kingdom Plantae ________.
A)are decomposers
B)are unicellular
C)are consumers
D)produce their own food
Answer: D
Q3) Which of the following are the proper components of the scientific method?
A)experiment,conclusion,application
B)question,observation,experiment,analysis,prediction
C)observation,question,hypothesis,prediction,experiment,results,conclusion
D)observation,question,opinion,conclusion,hypothesis
Answer: C
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Page 3
Chapter 2: Essential Chemistry for Biology
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Sample Questions
Q1) What are the reactant(s)in the following chemical reaction? C H O + 6 H O + 6 O 6 CO + 12 H O
A)CO and H O
B)C H O ,H O,and O
C)O nl
D)C H O ,H O,O ,CO ,and H O
Answer: B
Q2) In the following reaction,what type of bond is holding the two atoms together? K+Cl K + Cl KCl
A)hydrophilic
B)ionic
C)hydrophobic
D)covalent
Answer: B
Q3) The four most common elements found in living organisms are ________.
A)nitrogen,oxygen,phosphorus,and carbon
B)carbon,oxygen,nitrogen,and hydrogen
C)carbon,oxygen,potassium,and calcium
D)oxygen,calcium,hydrogen,and carbon
Answer: B
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Chapter 3: The Molecules of Life
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Sample Questions
Q1) Proteins are polymers constructed from ________ monomers.
A)hydrocarbon
B)amino acid
C)nucleotide
D)fatty acid
Answer: B
Q2) Cellulose is an example of ________.
A)a polypeptide
B)a steroid
C)fiber
D)fat
Answer: C
Q3) What name is given to the following reaction? glycerol + 3 fatty acids triglyceride + 3 water molecules
A)glycolysis
B)hydrolysis
C)hydrogenation
D)dehydration
Answer: D
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Page 5
Chapter 4: A Tour of the Cell
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Sample Questions
Q1) Which of the following is an adaptation to increase the surface area of a part of a cell that is involved in cellular respiration?
A)the cristae of a mitochondrion
B)the outer membrane of a chloroplast
C)the grana of a chloroplast
D)the endoplasmic reticulum
Q2) Lysosomes are responsible for ________.
A)lipid synthesis
B)cellular respiration
C)digestion of organic matter inside the cell
D)protein synthesis
Q3) Which of the following structures manufactures the components of ribosomes?
A)nucleus
B)cytoplasm
C)endoplasmic reticulum
D)nucleolus
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Chapter 5: The Working Cell
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Q1) If placed in tap water,an animal cell will undergo lysis,whereas a plant cell will not.What accounts for this difference?
A)expulsion of water by the plant cell's central vacuole
B)the relative impermeability of the plant cell membrane to water
C)the relative impermeability of the plant cell wall to water
D)the relative inelasticity and strength of the plant cell wall
Q2) A balloon permeable to water but not to glucose contains a 10% glucose solution.A beaker contains a 5% glucose solution.Which of the following is TRUE?
A)The solution in the beaker is hypertonic relative to the solution in the balloon.
B)The solution in the balloon is isotonic; the solution in the beaker is hypertonic.
C)The solution in the balloon is hypotonic relative to the solution in the beaker.
D)The solution in the balloon is hypertonic relative to the solution in the beaker.
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Chapter 6: Cellular Respiration: Obtaining Energy From Food
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Sample Questions
Q1) Large amounts of oxygen gas first appeared in Earth's atmosphere about ________ years ago.
A)500,000
B)10 million
C)2)7 billion
D)3)5 billion
Q2) Which part of cellular respiration produces the most NADH?
A)electron transport chain
B)citric acid cycle
C)glycolysis
D)fermentation
Q3) Aerobic cellular respiration generates about ________ ATP from one glucose.
A)2
B)6
C)38
D)The number generated depends on whether the end product of aerobic respiration is lactic acid or ethyl alcohol.
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Page 8
Chapter 7: Photosynthesis: Using Light to Make Food
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Q1) Which of the following is an autotroph?
A)human
B)mushroom
C)pine tree
D)fish
Q2) The first step of the Calvin cycle is the incorporation of ________ into ________.
A)O ...G3P
B)RuBP...O
C)CO ...RuBP
D)G3P...RuBP
Q3) In photosynthesis,an H ion gradient forms across the ________.
A)thylakoid membrane
B)outer chloroplast membrane
C)endomembrane
D)inner chloroplast membrane
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Chapter 8: Cellular Reproduction: Cells From Cells
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Q1) During telophase,________.
A)the events of prophase are reversed
B)chromosomes line up in the middle of the cell
C)sister chromatids become separate chromosomes
D)the nuclear envelope breaks up
Q2) The chromosomes of eukaryotic cells are found in the ________.
A)nucleus
B)centriole
C)Golgi apparatus
D)nucleolus
Q3) Sister chromatids are joined at the ________.
A)centromere
B)spindle
C)centrosome
D)centriole
Q4) Amanda's abnormal number of sex chromosomes resulted from ________.
A)independent assortment of chromosomes
B)crossing over
C)nondisjunction
D)random fertilization
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Chapter 9: Patterns of Inheritance
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Q1) Attached earlobes are recessive to free earlobes.What is the probability of having a child with attached earlobes when an individual with attached earlobes mates with an individual heterozygous for free earlobes?
A)0%
B)25%
C)50%
D)75%
Q2) A purebred plant that produces yellow seeds is crossed with a purebred plant that produces green seeds.The seeds of all of the offspring are yellow.Why?
A)The yellow allele is recessive to the green allele.
B)All of the offspring are homozygous yellow.
C)The yellow allele is dominant to the green allele.
D)The alleles are codominant.
Q3) Janice's genotype is ________.
A)Ww
B)WW
C)ww
D)WW or Ww
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11
Chapter 10: The Structure and Function of Dna
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Q1) How can bacteriophage DNA be spread from cell to cell without causing cell death?
A)by altering the way a cell splices its RNA
B)via a lytic cycle
C)via a lysogenic cycle
D)by changing the length of its DNA molecules
Q2) Peptide bonds form between ________.
A)amino acids
B)an mRNA codon and a tRNA anticodon
C)a tRNA and the amino acid it is carrying
D)an mRNA transcript and the small ribosomal subunit
Q3) How many nucleotides make up a codon?
A)two
B)three
C)four
D)five
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Chapter 11: How Genes Are Controlled
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Sample Questions
Q1) In an operon,the ________ acts as an on/off switch.
A)operator
B)promoter
C)activator
D)repressor
Q2) ________ is(are)responsible for more cancers than any other carcinogen.
A)Asbestos
B)UV radiation
C)Tobacco
D)X-rays
Q3) Which of the following is NOT a possible use of reproductive cloning?
A)the production of genetically identical mice and rats for experimentation
B)the production of organs in large farm animals for transplant into humans
C)restocking populations of extinct animals such as the wooly mammoth
D)creating stocks of stem cells for human therapeutic use
Q4) More people die of ________ cancer than of any other cancer.
A)lung
B)skin
C)pancreatic
D)breast
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Chapter 12: DNA Technology
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Sample Questions
Q1) Of these steps,which occurs first in the production of a recombinant plasmid?
A)cloning
B)cutting DNA into fragments
C)isolation of a plasmid from a bacterium
D)reproduction of the engineered plasmid in bacteria
Q2) You are attempting to link an individual to a crime.The only evidence you have is a tiny drop of blood.How can you use this drop of blood to definitively make the association?
A)You can use the sample to determine the individual's blood type.
B)You can use gel electrophoresis to determine the length of the DNA found in the sample.
C)You can use PCR to increase the amount of DNA available for STR analysis.
D)You can use the sample to check for the presence of the Rhesus factor.
Q3) STR analysis is a DNA profiling technique that makes use of the fact that different people have ________.
A)different numbers of repeats of short DNA sequences at certain sites in the genome
B)different alleles for many genes in the genome
C)different restriction fragments
D)different CODIS DNA sequences
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Page 14
Chapter 13: How Populations Evolve
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Sample Questions
Q1) Which of the following is a population?
A)the termites infesting your house along with the microorganisms living in their guts
B)all of the termites that have ever lived
C)all organisms living in your house
D)the termites infesting your house
Q2) Which of the following examples results from stabilizing selection?
A)The birth weight at which newborn humans are most likely to survive and the average weight of newborn humans are about the same.
B)There is an increase in antibiotic-resistant strains of bacteria.
C)There is an increase in the number of different breeds of dog.
D)Garter snakes with different coloration patterns behave differently when threatened.
Q3) What leads paleontologists to hypothesize that whales evolved from wolf-like carnivores?
A)molecular analysis of whale DNA
B)observations of fossil teeth
C)the presence of vestigial structures in both species
D)mathematical analysis using the Hardy-Weinberg formula
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Page 15
Chapter 14: How Biological Diversity Evolves
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Q1) Based on the independent and dependent variables represented in the figure and the information you have about common geographic habitats as well as anatomical and gametic compatibility of the four frog species,you initially conclude that reproductive barriers may be due to ________.
A)habitat isolation
B)mechanical isolation
C)temporal isolation
D)gametic isolation
Q2) Which of the following describes allopatric speciation?
A)A population of squirrels is separated by the Grand Canyon.The two subpopulations evolve into two distinct species.
B)A tetraploid plant species evolves from a diploid ancestor.Both the tetraploid and diploid species are found in the same habitat.
C)One population breeds in the fall; another population breeds in the spring.
D)A male horse and a female donkey mate,producing a sterile hinny.
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16
Chapter 15: The Evolution of Microbial Life
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Sample Questions
Q1) Prokaryotes reproduce by means of ________.
A)mitosis
B)binary fission
C)budding
D)meiosis
Q2) In the image above,the aquatic organism moves using flagella.It is parasitic and can colonate and reproduce in the human intestine.What type of organism could this be?
A)a protozoan
B)a slime mold
C)phytoplankton
D)seaweed
Q3) Why is RNA thought to have been the first genetic material?
A)RNA is structurally simpler than DNA.
B)RNA has been found on meteorites.
C)RNA is capable of self-replication
D)Primitive organisms,such as some viruses,have RNA as their genetic material.
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Page 17
Chapter 16: The Evolution of Plants and Fungi
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Q1) Why are gymnosperms considered to be "naked seed" plants?
A)Their seeds have a thin layer of endosperm.
B)They do not produce seeds; they produce only spores.
C)Their seeds are not enclosed within ovaries.
D)Their seeds develop on the surface of sporophytes.
Q2) Which of the following is the lineage of green algae believed to most resemble early plant ancestors?
A)charophytes
B)ulva
C)volvox
D)dinoflagellates
Q3) In angiosperms,the male gametophyte develops within ________.
A)male cones
B)filaments
C)anthers
D)stigma
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18
Chapter 17: The Evolution of Animals
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Q1) The first hominid to spread beyond Africa was ________.
A)"Lucy"
B)Australopithecus afarensis
C)Homo erectus
D)Homo neanderthalensis
Q2) All organisms with bilateral symmetry also have ________.
A)hard skeletons
B)bilateral adults
C)sense organs
D)an anterior head
Q3) Which of the following is one way in which scientists can test hypotheses about events that occurred in the distant past?
A)by dissecting current animal specimens
B)by analyzing fossils recovered from the Earth
C)by visiting local libraries to research the events
D)by interviewing current scientists and researchers
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Chapter 18: An Introduction to Ecology and the Biosphere
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Q1) Which of the following organisms are NOT ultimately dependent on sunlight for energy?
A)species that live in hydrothermal vent habitats
B)migratory bird species
C)marine species that live in the aphotic zone
D)trees that have experienced "flagging"
Q2) Which of these is a community?
A)all of the Staphylococcus aureus (a species of bacteria living on your skin
B)all of the organisms living in your home
C)all of the people living in your neighborhood
D)all of the nut grass (considered a weed)in your backyard
Q3) Long,snowy winters as well as evergreen trees such as pine and fir are found in
A)chaparral
B)temperate broadleaf forests
C)coniferous forests
D)temperate grasslands
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20
Chapter 19: Population Ecology
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Q1) In an ideal,unlimited environment,a population's growth follows a(n)________ model.
A)exponential
B)density-dependent
C)logistic
D)boom-and-bust
Q2) In a population that is following a logistic growth pattern,what shape does the population's growth curve most closely resemble?
A)S
B)J
C)
D)
Q3) According to the logistic growth model,what happens to a population when the size of the population reaches carrying capacity?
A)The growth rate increases.
B)The growth rate decreases.
C)The growth rate cannot be determined.
D)The growth rate is zero.
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Chapter 20: Communities and Ecosystems
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Q1) In Yellowstone National Park,wolves were hunted to extinction in the 1920s.A current restoration project has reintroduced wolves to Yellowstone National Park.Predict the response of the Yellowstone ecological community if wolves are a keystone species.
A)Species richness should decrease.
B)The relative abundances of each species should become more unequal.
C)Species diversity should decrease.
D)Species richness should increase,and the relative abundances of each species should be about equal.
Q2) In the food chain grass antelope human lion,the antelope is ________.
A)both an herbivore and a secondary consumer
B)both a producer and a primary consumer
C)both an herbivore and a primary consumer
D)a secondary consumer only
Q3) The primary goal of conservation biology is to ________.
A)catalog species
B)maximize the land set aside for wildlife
C)integrate human culture back into nature
D)counter the loss of biodiversity
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Chapter 21: Unifying Concepts of Animal Structure and Function
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Q1) In animals,individual cells are grouped into ________.
A)organs
B)tissues
C)organisms
D)organ systems
Q2) A diuretic is a substance that ________.
A)promotes sweating
B)regulates the contraction of cardiac muscle
C)inhibits urinary water loss
D)promotes urinary water loss
Q3) In humans,goosebumps are a vestige of a mammalian adaptation related to ________.
A)thermoregulation
B)water conservation
C)osmoregulation
D)positive feedback
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Chapter 22: Nutrition and Digestion
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Q1) On a global scale,the most significant type of malnutrition is ________.
A)vitamin A deficiency
B)calcium deficiency
C)iron deficiency
D)protein deficiency
Q2) Together with the small intestine,the ________ absorbs water.
A)stomach
B)colon
C)rectum
D)appendix
Q3) What do the vitamins biotin and Vitamin K have in common?
A)They are both water-soluble vitamins.
B)They are both obtained from meat.
C)They are both produced by intestinal bacteria.
D)They are both common deficiencies in the human diet.
Q4) Which of the following ingredients of the bread pictured would prevent beriberi?
A)ascorbic acid
B)sea salt
C)sunflower oil
D)whole wheat (whole grain)flour
Page 24
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Chapter 23: Circulation and Respiration
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Q1) In the human respiratory system,gas exchange occurs across the cells of the
A)diaphragm
B)trachea
C)bronchi
D)alveoli
Q2) The scientists investigated carbon dioxide levels in their experiment because high carbon dioxide levels in the ________ signal control centers in the brain to increase rate and depth of inhalations and exhalations.
A)alveoli
B)blood
C)heart muscle
D)pharynx
Q3) Blood pressure that is consistently ________ or higher would indicate that you have hypertension.
A)120/80
B)140/90
C)110/85
D)100/75
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Page 25
Chapter 24: The Bodys Defenses
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Q1) Which of the following statements best explains why people with Hodgkin's disease often show signs of immunodeficiency?
A)The Hodgkin's disease virus infects and destroys B cells.
B)Hodgkin's disease involves the deposition of immune complexes in the kidneys.
C)Hodgkin's disease is a type of cancer that affects lymphocytes.
D)Hodgkin's disease occurs when an immune response elicited by streptococcal bacteria kills normal heart cells as well.
Q2) Histamine ________.
A)causes local blood vessels to dilate
B)attracts natural killer cells
C)stimulates the release of defensive proteins
D)repels phagocytic cells
Q3) Herd immunity fails when what percentage of the population is NOT vaccinated?
A)1%
B)5%
C)10%
D)50%
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Chapter 25: Hormones
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Q1) Which of these behaviors is NOT associated with androgens?
A)body-slamming elephant seals
B)mating songs in frogs
C)territorial battles in fish
D)maturation of ovaries in bears
Q2) Which of the following hormones affects the greatest variety of cell types?
A)prolactin
B)insulin
C)growth hormone
D)calcitonin
Q3) What is special about the target cells that allows them to respond to the hormone?
Only the target cells ________.
A)are close enough to the blood vessels to respond
B)touch the blood vessels
C)have specific receptors to the hormone
D)located in organs next to the kidneys can respond
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Chapter 26: Reproduction and Development
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Q1) Which of the following birth control methods provides the most effective protection against pregnancy and sexually transmitted disease for sexually active people?
A)the pill
B)latex condoms
C)a diaphragm
D)the rhythm method
Q2) Which one of the following is the earliest event in the process of fertilization?
A)Sperm contact the jelly coat around the egg.
B)The sperm head plasma membrane fuses with the egg plasma membrane.
C)Enzymes from the acrosome are released.
D)The sperm nucleus enters the cytoplasm of the egg.
Q3) What moves the human egg through the oviduct?
A)the beating of the egg's cilia
B)rhythmic contractions of the oviduct
C)rhythmic contractions of the uterus
D)the beating of cilia in the oviduct
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Chapter 27: Nervous,Sensory,and Locomotor Systems
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Q1) Would you expect motor units to vary in size? If so,which of these structures would probably have the largest ones?
A)No; all motor units are the same size.
B)Yes; a motor unit in the thigh to control leg movements would be the largest one.
C)Yes; a motor unit that controls eye movements would be the largest one.
D)Yes; a motor unit that controls hand movements would be the largest one.
Q2) Realizing that you did not study as much as you needed to for this exam,you start to take the test.However,it is difficult to concentrate because your heart is racing,your stomach seems tied in a knot,you are breathing too quickly,and your mouth is dry.Most likely,you are experiencing the effects of the ________.
A)motor nervous system
B)sympathetic division
C)parasympathetic division
D)central nervous system
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Chapter 28: The Life of a Flowering Plant
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Q1) Which of the following describes the delivery of pollen to the stigma?
A)fertilization
B)double fertilization
C)germination
D)pollination
Q2) A plant's diploid form is called the ________; the haploid form is called the ________.
A)sporophyte...pollen
B)sporophyte...gametophyte
C)gametophyte...sporophyte
D)gametophyte...fruit
Q3) A plant grows taller through ________,which involves cell division in the ________.
A)primary growth...vascular cambium
B)secondary growth...vascular cambium
C)primary growth...apical meristem
D)secondary growth...cork cambium
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Chapter 29: The Working Plant
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Q1) In a strawberry plant in the summer,the leaves are ________ and the strawberry fruits are ________.
A)sugar sources sugar sources
B)sugar sources sugar sinks
C)sugar sinks sugar sources
D)sugar sinks sugar sinks
Q2) The three most important nutrients contained in fertilizers are ________.
A)nitrogen,iron,and phosphorus
B)zinc,sulfur,and phosphorus
C)nitrogen,phosphorus,and potassium
D)zinc,iron,and potassium
Q3) Which of the following best describes the conversion that occurs during nitrogen fixation?
A)ammonium to nitrate
B)nitrate to ammonium
C)nitrogen to ammonium
D)nitrogen to ammonium or nitrate
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