Quiz About Health

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Quiz About Health

Human health is something that everyone should be well aware of and maintaining it is something we should all strive to do. My study guide is designed to prepare for my Natural Science CLEP test so may remove shortly once I'm done practicing in a few weeks. So take up the quiz below and get to practice right along with me.


Questions and Answers
  • 1. 
    Motion is sensed by what part of the vertebrate ear?
    • A. 

      Otoliths

    • B. 

      Cochlea

    • C. 

      Basilar membrane

    • D. 

      Tympanic membrane

    • E. 

      Semicircular canals

  • 2. 
    • A. 

      Maintained by bonding and attractions between parts of the molecule, as well as hydrophilic and hydrophobic interactions with water.

    • B. 

      Important to its function

    • C. 

      Ultimately dependent upon the primary structure

    • D. 

      All of above

    • E. 

      None of above

  • 3. 
    Green algae often form a multi-cellular ________ that is not differentiated into true leaf, root, or stem, and is attached to a surface by a holdfast.
    • A. 

      Medulla

    • B. 

      Medusa

    • C. 

      Rhizoid

    • D. 

      Thallus

    • E. 

      Thalamus

  • 4. 
    Multi-cellular animals that lack both symmetry and true tissues are
    • A. 

      Amoeba

    • B. 

      Sponges

    • C. 

      Sea stars

    • D. 

      Jellyfish

    • E. 

      Flatworms (Platyhelminthes).

  • 5. 
    Which of these lists the stages of chordate development in correct order?
    • A. 

      Fertilization, cleavage, neurulation, gastrulation, neural crest formation, organogenesis

    • B. 

      Fertilization, gastrulation, cleavage, neurulation, neural crest formation, organogenesis

    • C. 

      Fertilization, cleavage, oganogenesis, neural crest formation, neurulation, gastrulation

    • D. 

      Fertilization, cleavage, gastrulation, neurulation, neural crest formation, organogenesis

    • E. 

      Fertilization, neurulation, neural crest formation, gastrulation, cleavage, organogenesis

  • 6. 
    Microspores are formed where in angiosperms?
    • A. 

      Sporangia in the anthers of flowers form microspores that turn into pollen

    • B. 

      Sporangia within pistils of flowers form microspores that turn into pollen

    • C. 

      Sporangia within the pollen tube of anthers form microspores which later turn into pollen

    • D. 

      Microspores are produced within the body of the stigma, and differentiate into pollen granules

    • E. 

      Pollen is produced within the anthers of flowers, and differentiates into microspores

  • 7. 
    Deuterostomes evolutionarily branched in two main directions: one with a radial body plan, and the other with a bilateral plan. These groups are known (respectively) as the
    • A. 

      Insects and crustaceans

    • B. 

      Crustaceans and insects

    • C. 

      Molluscs and echinoderms

    • D. 

      Echinoderms and chordates

    • E. 

      Chordates and echinoderms

  • 8. 
    Which of the following pairings of a term or phrase with a group of organisms is INCORRECT?
    • A. 

      Flowers: angiosperms

    • B. 

      Gingko: gymnosperms

    • C. 

      Ferns: Pterophyta

    • D. 

      Liverwort: fern

    • E. 

      Club mosses: Lycophyta

  • 9. 
    In the geologic history of the earth, one period can be called the age of reptiles, since they were the dominant forms of animal life. This period is known as the
    • A. 

      Cenozoic Era

    • B. 

      Paleozoic Era.

    • C. 

      Mesozoic Era

    • D. 

      Cambrian

    • E. 

      Ordovician

  • 10. 
    As part of their elemental cycles, which of the following elements can be converted (fixed) by specialized organisms from a gas in the atmosphere to a form in which it is available to other organisms?
    • A. 

      Nitrogen

    • B. 

      Carbon dioxide

    • C. 

      Oxygen

    • D. 

      A. and B

    • E. 

      A., B., and C

  • 11. 
    Dispensing with the need for free water as a requirement for fertilization was an important development in the evolution of land plants. Which plant group lacks this adaptation to dry conditions?
    • A. 

      Gymnosperms and angiosperms

    • B. 

      Bryophytes and ferns

    • C. 

      Ferns, gymnosperms, and angiosperms

    • D. 

      Bryophytes

    • E. 

      Gymnosperms

  • 12. 
    • A. 

      A covalent molecule contains one or more covalent bonds.

    • B. 

      Covalent bonds are formed when an electron is completely lost or gained from an atom.

    • C. 

      A double covalent bond is drawn as two solid lines between two atoms.

    • D. 

      A pair of electrons is shared between two atoms for each covalent bond.

    • E. 

      Shared electrons allow an atom to complete its outer electron shell in a covalent molecule.

  • 13. 
    When a cell is placed in a dilute solution (that is, hypotonic with respect to the inside of the cell),
    • A. 

      The net movement of solute is INTO the cell.

    • B. 

      The net movement of water is OUT of the cell.

    • C. 

      The net movement of water is INTO the cell.

    • D. 

      There is no net movement of water.

    • E. 

      A. and B.

  • 14. 
    Which nucleotide base is NOT contained in RNA?
    • A. 

      Thymine

    • B. 

      Adenine

    • C. 

      Uracil

    • D. 

      Guanine

    • E. 

      Cytosine

  • 15. 
    The difference between competitive and noncompetitive inhibition is that
    • A. 

      In competitive inhibition, the allosteric site of the enzyme is blocked, whereas in noncompetitive inhibition it is the active site that is blocked.

    • B. 

      In competitive inhibition, the active site of the enzyme is blocked, whereas in noncompetitive inhibition it is the allosteric site that is blocked.

    • C. 

      Competitive inhibition requires energy derived from ATP; noncompetitive inhibition does not.

    • D. 

      Noncompetitive inhibition requires a cofactor.

    • E. 

      Competitive inhibition requires a cofactor.

  • 16. 
    • A. 

      Amino group

    • B. 

      Peptide bonds

    • C. 

      R group

    • D. 

      Carboxylic acid group

    • E. 

      Enzyme

  • 17. 
    A watershed is
    • A. 

      An area of land that drains into a stream or river.

    • B. 

      A protected area draining into a reservoir used by humans as a source of drinking water.

    • C. 

      The same as the benthic zone of a lake.

    • D. 

      An area that feeds wide-point sources pollution into a lake or the ocean.

    • E. 

      A tract of land that cannot absorb (sheds) water.

  • 18. 
    • A. 

      There may be no more than two forms in a given population.

    • B. 

      Alleles are found at the same locus on chromosomes.

    • C. 

      They are found paired in organisms.

    • D. 

      An individual may have more than two forms of an allele.

    • E. 

      Alleles exist only for genes showing Mendelian behavior, such as true dominance-recessiveness.

  • 19. 
    • A. 

      The F₂ generation will be 3:1 straight:wrinkled.

    • B. 

      The F₂ generation will be 1:2:1 SS:Ss:ss.

    • C. 

      The F₂ generation will be 1:1 straight:wrinkled.

    • D. 

      The F₂ generation will be 1:1 SS:ss.

    • E. 

      The F₂ generation will be 2:1 straight:wrinkled.

  • 20. 
    The first vertebrates were
    • A. 

      Jawless fish.

    • B. 

      Jawed fishes

    • C. 

      Sharks

    • D. 

      Bony fishes

    • E. 

      Tunicates

  • 21. 
    In an ecosystem, detritivores include
    • A. 

      Lower green plants, such as bryophytes

    • B. 

      Plant-eaters, such as deer

    • C. 

      Algae

    • D. 

      Flesh-eaters, such as wolves and lions

    • E. 

      Fungi and bacteria

  • 22. 
    • A. 

      Tt and twisted

    • B. 

      Tt and normal

    • C. 

      Tt and twisted

    • D. 

      TT and normal

    • E. 

      TT and twisted

  • 23. 
    In mice, there exists a gene for ear shape with two alleles: normal (T) and twisted (t). A cross has been made between two groups of mice. Both groups have the same genotype. The F1 progeny are 735 mice with normal ears and 265 mice with twisted ears. What are the genotypes of the progeny?
    • A. 

      TT

    • B. 

      TT and Tt

    • C. 

      Tt and tt

    • D. 

      TT and tt

    • E. 

      TT, Tt, and tt

  • 24. 
    The complementary DNA sequence to this strand of DNA—A-T-C-C-G-T-A—would be
    • A. 

      T-A-G-G-C-A-T.

    • B. 

      T-A-C-C-G-T-A.

    • C. 

      U-A-G-G-C-U-A

    • D. 

      A-U-C-C-G-A-U

    • E. 

      T-A-C-G-C-T-A.

  • 25. 
    • A. 

      Down syndrome

    • B. 

      Hemophilia

    • C. 

      Phenylketonuria

    • D. 

      Alcoholism

    • E. 

      Huntington's chorea

  • 26. 
    • A. 

      The wings of a bee and wings of a bird.

    • B. 

      Human and octopus eyes, since they are anatomically very similar.

    • C. 

      The pectoral fins of fish and wings of bats.

    • D. 

      A lobster's leg and a frog's leg.

    • E. 

      A form of hemoglobin found in plants and hemoglobin in vertebrate blood.

  • 27. 
    The following graph:
    • A. 

      Shows the rate of photosynthesis over a range of temperatures for C₄ plants (LINE ONE) versus C₃plants (LINE TWO).

    • B. 

      Shows the rate of photosynthesis over a range of temperatures for C₃ plants (LINE ONE) versus C₄ plants (LINE TWO).

    • C. 

      Shows the rate of photosynthesis over a range of temperatures for C₃ plants (LINE ONE) versus CAM plants (LINE TWO).

    • D. 

      Contrasts cellular respiration rates in C₄ plants (LINE ONE) and C₃ plants (LINE TWO) over a range of ambient temperatures.

    • E. 

      Cannot be interpreted without further information.

  • 28. 
    In the pancreas, insulin
    • A. 

      And glucagon are secreted by pancreatic alpha cells.

    • B. 

      And glucagon are secreted by pancreatic beta cells.

    • C. 

      Is secreted by beta cells and glucagon by alpha cells.

    • D. 

      Is secreted by alpha cells and glucagon by beta cells.

    • E. 

      And glucagon are both secreted by pancreatic acinar cells (exocrine cells).

  • 29. 
    A biologist is studying the transport of a certain type of molecule into a cell. The researcher finds that transport slows when the cells are poisoned with a chemical that inhibits energy production. Under normal circumstances the molecule under study is probably transported into the cell by
    • A. 

      Simple diffusion

    • B. 

      Facilitated diffusion

    • C. 

      Active transport

    • D. 

      Osmosis

    • E. 

      Exocytosis

  • 30. 
    The fibers in skeletal muscles are made up of many myofibrils surrounded by a membrane called
    • A. 

      Sarcolemma

    • B. 

      Sacculus

    • C. 

      Sacrum

    • D. 

      Synovial membrane

    • E. 

      Sarcoplasmic reticulum

  • 31. 
    The kingdom Protista includes all of the following EXCEPT
    • A. 

      Dinoflagellates

    • B. 

      Forams (Foraminifera)

    • C. 

      Euglenoids (Euglenophyta)

    • D. 

      Diatoms

    • E. 

      Yeasts

  • 32. 
    Cell walls of chitin, sometimes with cellulose present, are characteristic of
    • A. 

      Arthropods such as insects and lobsters.

    • B. 

      Higher plants such as angiosperms.

    • C. 

      Fungi

    • D. 

      Prokaryotes

    • E. 

      Algae

  • 33. 
    • A. 

      Somatic nervous system

    • B. 

      Parasympathetic nervous system

    • C. 

      Sympathetic nervous system

    • D. 

      Autonomic nervous system

    • E. 

      Central nervous system

  • 34. 
    • A. 

      Somatic nervous system

    • B. 

      Parasympathetic nervous system

    • C. 

      Sympathetic nervous system

    • D. 

      Autonomic nervous system

    • E. 

      Central nervous system

  • 35. 
    In what part of the nervous system are myelinated axons white and unmyelinated axons gray?
    • A. 

      Somatic nervous system

    • B. 

      Parasympathetic nervous system

    • C. 

      Sympathetic nervous system

    • D. 

      Autonomic nervous system

    • E. 

      Central nervous system

  • 36. 
    In conifer trees, the male cone is ________ than the female cone and produces __________.
    • A. 

      Smaller, megaspores

    • B. 

      Smaller, microspores

    • C. 

      Larger, megaspores

    • D. 

      Larger, microspores

    • E. 

      Smaller, motile sperm

  • 37. 
    A climax community is
    • A. 

      Made up of only hardwood trees and no softwoods.

    • B. 

      Made up of softwood trees.

    • C. 

      A stable biotic community, which is in dynamic equilibrium with current environmental conditions.

    • D. 

      A biotic community that no longer changes in any way.

    • E. 

      B. and C.

  • 38. 
    The arthropod structures that remove nitrogenous wastes from the hemocoel are the
    • A. 

      Melanocytes

    • B. 

      Kidneys

    • C. 

      Nephrons

    • D. 

      Malpighian corpuscles

    • E. 

      Malpighian tubules

  • 39. 
    During the processing of mRNA from its initial form to a mature transcript, _____ are cut out and a(n) _________ is added to the 3' end and a cap at the 5' end.
    • A. 

      DNA nucleotides, cap

    • B. 

      Introns, exon

    • C. 

      Introns, poly-T tail

    • D. 

      Introns, poly-A tail

    • E. 

      Exons, poly-A tail

  • 40. 
    Breeding activities in birds are usually initiated in response to
    • A. 

      Changes in temperature

    • B. 

      Increasing day lengths

    • C. 

      An internal clock that is independent of the environment.

    • D. 

      The weather

    • E. 

      The height of the sun's path as it travels from horizon to horizon

  • 41. 
    • A. 

      The tissues run out of glucose and cannot produce more ATP.

    • B. 

      Lactic acid accumulates, raising the pH, and glycogen reserves are exhausted.

    • C. 

      Lactic acid accumulates because of anaerobic activity, lowering the pH, and glycogen reserves are exhausted.

    • D. 

      Glycogen reserves are exhausted.

    • E. 

      Lactic acid accumulates because of anaerobic activity, lowering the pH, and glycogen reserves are exhausted; in aerobic activity depletion of glycogen puts a limit on muscular activity.

  • 42. 
    There are ___ codons, of which _____ is (are) for start and ______ is (are) for stop.
    • A. 

      64, one, three

    • B. 

      16, one, three

    • C. 

      64, three, one

    • D. 

      16, three, three

    • E. 

      64, two, one

  • 43. 
    The midpiece of a sperm contains numerous
    • A. 

      Mitochondria

    • B. 

      Ribosomes

    • C. 

      Vesicles

    • D. 

      A. and B

    • E. 

      B. and C

  • 44. 
    Water and mineral nutrients are absorbed by a plant through
    • A. 

      The root epidermis, often by protruding hairy roots.

    • B. 

      The taproot, usually by small roots called root hairs.

    • C. 

      The epidermis on roots, typically by epidermal root hairs.

    • D. 

      Transpiration

    • E. 

      Xylem tissues

  • 45. 
    Monoecious plants
    • A. 

      Produce two seed leaves, parallel veins in leaves, and have flower parts in threes or multiples of three.

    • B. 

      Produce one seed leaf and have flower parts in multiples of four or five.

    • C. 

      Produce one seed leaf and have flower parts in threes or multiples of threes.

    • D. 

      Have only male or female flowers on one plant.

    • E. 

      Have male flowers and female flowers—each flower of one sex only—on each plant.

  • 46. 
    • A. 

      Is the ecological role a species plays in a biotic community.

    • B. 

      Is the exact physical location of an individual in a habitat.

    • C. 

      Is a concept that applies only to birds.

    • D. 

      Is usually occupied by many related species, minimizing competition for resources.

    • E. 

      Would be described by a biologist as identical to the organism's habitat.

  • 47. 
    Decomposer food chains start with
    • A. 

      Animal wastes

    • B. 

      Dead organisms

    • C. 

      Sunlight

    • D. 

      A. and B

    • E. 

      A. and C

  • 48. 
    Most inherited traits are affected both by genes and environment (nature versus nurture). Give an example of a human gene that is expressed without any environmental influence—that is, the phenotype results from the expression of the gene alone and is not affected by the environment.
    • A. 

      Height

    • B. 

      Weight

    • C. 

      Blood type

    • D. 

      Length of the femur

    • E. 

      Skin color

  • 49. 
    • A. 

      Abyssal zone

    • B. 

      Neritic zone

    • C. 

      Euphotic zone

    • D. 

      Coastal zone

    • E. 

      Bathyal zone

  • 50. 
    Most commercial fishing is done in what zone?
    • A. 

      Abyssal zone

    • B. 

      Neritic zone

    • C. 

      Euphotic zone

    • D. 

      Coastal zone

    • E. 

      Bathyal zone

  • 51. 
    The lack of sunlight is correlated with oxygen-poor water in which zone?
    • A. 

      Abyssal zone

    • B. 

      Neritic zone

    • C. 

      Euphotic zone

    • D. 

      Coastal zone

    • E. 

      Bathyal zone

  • 52. 
    The sodium-potassium pump
    • A. 

      Helps remove an electrochemical gradient from across the membrane.

    • B. 

      Concentrates sodium on the outside of the membrane.

    • C. 

      Concentrates potassium on the outside of the membrane.

    • D. 

      Doesn't require a proton carrier or energy.

    • E. 

      All of above

  • 53. 
    In animal behavior, a releaser
    • A. 

      Leaves the animal free to act in an unconstrained fashion.

    • B. 

      Is any stimulus

    • C. 

      Is a specific external stimulus that evokes a specific behavioral response.

    • D. 

      Is an action taken by one animal of a social species to show subordinance to another animal of that species.

    • E. 

      Is used in conditioning to produce certain behaviors.

  • 54. 
    Which one of the following does NOT contribute to increasing genetic variation?
    • A. 

      Meiosis

    • B. 

      Fertilization of the egg by a sperm

    • C. 

      Mitosis

    • D. 

      Crossing over in chromosomes

    • E. 

      Mutation

  • 55. 
    The principal body cavity of many animals, lined by mesodermal cells and containing the gut, is the
    • A. 

      Sealum

    • B. 

      Archenteron

    • C. 

      Coelom

    • D. 

      Coleoptile

    • E. 

      None of the above

  • 56. 
    This group of mainly aquatic animals is characterized by chitinous exoskeletons, two pairs of antennae and chewing appendages on the head, and a thorax and abdomen. They are known as the class
    • A. 

      Crustacea

    • B. 

      Arachnida

    • C. 

      Insecta

    • D. 

      Arthropoda

    • E. 

      Merostomata

  • 57. 
    The chamber(s) of the mammalian heart with the thickest muscular wall is (are) the
    • A. 

      Right ventricle

    • B. 

      Left ventricle

    • C. 

      Right atrium

    • D. 

      Left atrium

    • E. 

      The ventricles, which have the thickest muscular walls and are about equal in thickness.