Biology A: Unit 1 Test.

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Biology A: Unit 1 Test.

Biology A Unit 1 test: Chapters 1 and 2


Questions and Answers
  • 1. 
    Which is an amino acid?
    • A. 
    • B. 
    • C. 
    • D. 
  • 2. 
    Which elements are in carbohydrates?
    • A. 

      F

    • B. 

      C

    • C. 

      Si

    • D. 

      O

    • E. 

      H

    • F. 

      N

    • G. 

      P

  • 3. 
    Which elements are in nucleotides (nucleic acids)
    • A. 

      C

    • B. 

      H

    • C. 

      O

    • D. 

      N

    • E. 

      P

    • F. 

      S

  • 4. 
    Which elements are in proteins?
    • A. 

      C

    • B. 

      H

    • C. 

      O

    • D. 

      N

    • E. 

      P

    • F. 

      S

  • 5. 
    Polymers of the following types of compounds are made by dehydration synthesis:
    • A. 

      Proteins

    • B. 

      Lipids

    • C. 

      Nucleic Acids

    • D. 

      Carbohydrates

  • 6. 
    What is the relation of hydrolysis to dehydration synthesis?
    • A. 

      Adds water to break the bonds formed from dehydration synthesis.

    • B. 

      Unrelated

    • C. 

      Takes out additional water.

  • 7. 
    Which of the following are monosaccharides?
    • A. 

      Maltose

    • B. 

      Glucose

    • C. 

      Fructose

    • D. 

      Sucrose

    • E. 

      Lactose

    • F. 

      Galactose

    • G. 

      Glycerol

    • H. 

      Aminase

  • 8. 
    What is maltose?
    • A. 

      Monosaccharide

    • B. 

      Disaccharide

  • 9. 
    What type of a biomolecule is an enzyme?
    • A. 

      Lipid

    • B. 

      Nucleic Acid

    • C. 

      Protein

    • D. 

      Carbohydrate

  • 10. 
    What are the factors affecting enzyme activity?
    • A. 

      PH, temperature, substrate concentration in a narrow range

    • B. 

      PH, temperature, substrate concentration in a broad range

    • C. 

      PH, temperature only in a narrow range

    • D. 

      PH, temperature only in a broad range

  • 11. 
    What type of bonds occur in organic compounds?
    • A. 

      Ionic bonds

    • B. 

      Covalent bonds

    • C. 

      Metallic bonds

  • 12. 
    The __________ is the smallest unit of matter.
    • A. 

      Element

    • B. 

      Atom

    • C. 

      Molecule

    • D. 

      Electron

  • 13. 
    An _______ bond is a bond in which electrons are transferred.
    • A. 

      Covalent

    • B. 

      Ionic

    • C. 

      Double

  • 14. 
    A base has a ph above _____.
    • A. 

      9

    • B. 

      8

    • C. 

      7

    • D. 

      10

  • 15. 
    Gold is an example of a ______.
    • A. 

      Molecule

    • B. 

      Element

    • C. 

      Atom

    • D. 

      Covalent bond

  • 16. 
    The water molecule is _________, because there is an uneven distribution of electron within the molecule.
    • A. 

      Uneven

    • B. 

      Weird

    • C. 

      Polar

    • D. 

      Strange

  • 17. 
    IF this structure represents DNA, what would be the appropriate description?
    • A. 

      Double helix

    • B. 

      Ladder

    • C. 

      Twisted Sisters

    • D. 

      Psychadelic stairway

  • 18. 
    Which of the following would be classified as the purines?
    • A. 

      Adenine and Thymine

    • B. 

      Adenine and Guanine

    • C. 

      Adenine and Cytosine

    • D. 

      Thymine and Cytosine

  • 19. 
    The backbone of the DNA structure is made up of...
    • A. 

      Alternating phosphates and sugar molecules

    • B. 

      Nucleotides

    • C. 

      Alternating bases and sugars

    • D. 

      Alternating phosphates and bases

  • 20. 
    TRUE or FALSE: DNA is found the nucleus in eukaryotic cells.
    • A. 

      TRUE

    • B. 

      FALSE

  • 21. 
    Carbohydrates are composed of
    • A. 

      Carbon, hydrogen, and nitrogen

    • B. 

      Hydrogen and oxygen

    • C. 

      Oxygen, nitrogen, and carbon

    • D. 

      Carbon, hydrogen, and oxygen

    • E. 

      Carbon and glucose

  • 22. 
    Cell membrane is?
    • A. 

      Flexible structure which surrounds a cell and controls the movement of materials in and out of the cell

    • B. 

      Protein which requires energy

    • C. 

      A cell group of cells

  • 23. 
    Semi-permeable is the characteristic of a material which allows only certain materials to pass through it?
    • A. 

      True

    • B. 

      False

  • 24. 
    Which structure is found in the cells of plants, but not in animals?
    • A. 

      Cell membrane

    • B. 

      Cell wall

    • C. 

      Mitochondria

    • D. 

      Lysosome

  • 25. 
    The nucleus stores almost all of the cell's
    • A. 

      Ribosomes

    • B. 

      DNA

    • C. 

      Proteins

    • D. 

      Amino acids

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