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Biology preactice questions II

Discussion in 'DAT Discussions' started by nt4reall, Jun 17, 2008.

  1. nt4reall

    nt4reall New Member

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    Hi , Iam back again . Sorry for the previous post, i made some typo mistakes . Man , i felt exhausted , is anybody in the same boat with me ? I will take my test in the end of July, but there are many things I need to know for DAT . Okie , here we are...
    The mesoderm gives rise to all of the following except :
    a. Musculoskeletal system
    b. Portions of the digestive and respiratory organs
    c. Circulatory system
    d. Connective tissue
    e. All of the above are arise from the mesodermal layer

    Which of the following arises from the endodermal layer?
    a. Lungs
    b. Epithelial lining og the digestive tract
    c. Retina of the eye
    d. a and b
    e. b and c

    Which of the following is true regarding lipids?
    a. They are composed primary of the elements C, H,O &N
    b. Maltose is an example of a lipid
    c. The C: H ratio is 1:2:1
    d. The secondary structure is composed of alpha helices and beta pleateds sheets.
    e. It is the chief means of long term food storage in animals
     
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  3. Mstoothlady2012

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    -
     
  4. Mstoothlady2012

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    I just googled #1 ...I wanna change my answer to B :D
     
  5. pistolpete007

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    im pretty sure connective tissue is ectotherm
     
  6. Mstoothlady2012

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  7. vvvv

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    a pre-pharm testing a pre-dent?
     
  8. nt4reall

    nt4reall New Member

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    iam pre-dent , forget to change my status ...Is it okie for me to post questions in this forum????
     
  9. phungy

    phungy Account Terminated

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    Kaplan BB also says connective tissue comes from mesoderm.
     
  10. DRHOYA

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    The mesoderm gives rise to all of the following except :
    a. Musculoskeletal system
    b. Portions of the digestive and respiratory organs
    c. Circulatory system
    d. Connective tissue
    e. All of the above are arise from the mesodermal layer

    Which of the following arises from the endodermal layer?
    a. Lungs
    b. Epithelial lining og the digestive tract
    c. Retina of the eye (ecto)
    d. a and b
    e. b and c

    Which of the following is true regarding lipids?
    a. They are composed primary of the elements C, H,O &N
    b. Maltose is an example of a lipid (no, carbohydrate)
    c. The C: H ratio is 1:2:1 (no, for lipids it is much greater)
    d. The secondary structure is composed of alpha helices and beta pleateds sheets. (no, proteins)
    e. It is the chief means of long term food storage in animals

     
  11. DRHOYA

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    Ah crap, the first question should be B (I need to slow down). :oops:
     
  12. osimsDDS

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    nice test keep em coming, ill post one up later today or tomorrow
     
  13. jjw822

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    good questions..:D
     
  14. Dencology

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    this is my answer.
     
  15. SuperC

    SuperC SuperC DMD

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    The mesoderm gives rise to all of the following except :
    a. Musculoskeletal system
    b. Portions of the digestive and respiratory organs
    c. Circulatory system
    d. Connective tissue
    e. All of the above are arise from the mesodermal layer

    Mesodermal Tissue

    * Connective Tissue
    * Muscle
    * Dermis
    * Urogenital system
    * Serous membranes
    * Vascular system, including lymphatics
    * Adrenal Cortex
    * Spleen
    * Dental Pulp






    Which of the following arises from the endodermal layer?
    a. Lungs
    b. Epithelial lining og the digestive tract
    c. Retina of the eye
    d. a and b
    e. b and c

    Endodermal Tissue
    * Gastrointestinal system
    * Thyroid
    * Parathyroid
    * Thymus
    * Liver
    * Pancreas
    * Lining of respiratory system, bladder, and urethra


    Note: This one is tricky because, to my knowledge only the lining of the lungs comes from endoderm. In a situation (eg class) I would argue this one with a prof, but in this instance I would say that the lung is a derivative. Just don't over think these things too much.

    Which of the following is true regarding lipids?
    a. They are composed primary of the elements C, H,O &N
    No because the structure is CHO and CHOP (for phospholipids)

    b. Maltose is an example of a lipid
    Nope, a sugar (a disaccaride of glucose)
    c. The C: H ratio is 1:2:1
    Damn, I cannot remember what the ratio is!
    d. The secondary structure is composed of alpha helices and beta pleateds sheets.
    Nope, Proteins
    e. It is the chief means of long term food storage in animals
     
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  17. ddsjc2014

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    B/d/e
     
    #15 ddsjc2014, Jun 18, 2008
    Last edited: Jun 18, 2008
  18. theedaddy77

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    yeah guys im sure about my answers if the o/p doesnt respond

    The mesoderm gives rise to all of the following except :
    a. Musculoskeletal system
    b. Portions of the digestive and respiratory organs (lining of both is endo)
    c. Circulatory system
    d. Connective tissue
    e. All of the above are arise from the mesodermal layer

    Which of the following arises from the endodermal layer?
    a. Lungs
    b. Epithelial lining og the digestive tract (lining of ****)
    c. Retina of the eye
    d. a and b
    e. b and c

    Which of the following is true regarding lipids?
    a. They are composed primary of the elements C, H,O &N
    b. Maltose is an example of a lipid
    c. The C: H ratio is 1:2:1
    d. The secondary structure is composed of alpha helices and beta pleateds sheets.
    e. It is the chief means of long term food storage in animals (fat =lipid)
     
  19. nt4reall

    nt4reall New Member

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  20. futuredent22

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    The first question is tricky but I think it should be E. You answer B, because you argue that the linings of the digestive and respiratory organs are endoderm. However, think about what you are saying by putting B:

    "The mesoderm will give rise to all of the following, except for portions of the digestive and respiratory organs."

    However, mesoderm DOES give rise to portions of these organs (all but the linings, which we agree are endoderm). Therefore, the answer is E.
     

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