Biology Block (5 pts) ______ Name______________________________________________
Dr. Wexler

Cell Structure/Function Unit Test

Date_______



Part I. Matching
Questions 1-37 (1pt each)

Choose from the following terms:

Cell Membrane

Cell Wall

Chloroplast

Endoplasmic Reticulum

Golgi Body

Lysosomes

Mitochondrion

Nucleus

Ribosome

Vacuole



  1. Contains ATP synthase

  2. Contains water and dissolved nutrients

  3. Protects plant cell from damage

  4. Contains chromosomes, which govern the cells activities and determine heredity

  5. Addresses vesicles for transport to specific locations

  6. Consists mainly of cellulose

  7. Consists of protein and RNA

  8. Brain of the cell

  9. Aid in killing “swallowed” (phagocytosed) microbes by fusing with the phagosome

  10. Flexible barrier that encloses the cytoplasm

  11. Contain digestive enzymes for breaking down macromolecules to their subunits

  12. Contains the light-sensitive pigment chlorophyll

  13. Contains the nucleolus, which produces an important component of ribosomes: rRna

  14. Produces oxygen as a waste product

  15. Energy factory of the cell

  16. Contains channel proteins to facilitate diffusion of molecules in or out of the cell

  17. Highway of the cell

  18. Powerplant of the cell

  19. Organelle found only in plants and some protists

  20. The only organelle found in both eukaryotes and prokaryotes

  21. Packages proteins into vesicles for transport

  22. Post office of the cell

  23. Maintains plant cell shape

  24. Semipermeable barrier between the inside and outside of the cell

  25. “Smooth form” is a network of tubules and vesicles that store various enzymes

  26. Produces carbon dioxide as a waste product

  27. Produces energy using light

  28. Protein factory of the cell

  29. “Rough form” contains ribosomes, which manufacture proteins

  30. Aid in recycling old, worn-out mitochondria by fusing with them

  31. Produces ATP in the dark

  32. Stiff barrier between the inside and outside of plant cells

  33. When full, it keeps plant cells stiff, preventing the plant from wilting

  34. Site of photosynthesis

  35. The only organelle that lacks a membrane

  36. Transports proteins and lipids

  37. Larger in plant cells than in animal cells



Part II. Multiple Choice

  1. The mitochondria:
    A. are symbiotic with the cell
    B. evolved from bacteria
    C. divide independently of the cell
    D. All of the above


  1. The mitochondria:
    A. contain chromosomes
    B. contain ribosomes
    C. contain two sets of membranes
    D. All of the above


  1. Chromosomes are found in:
    A. chloroplasts
    B. mitochondria
    C. the nucleus
    D. All of the above


  1. Mitochondria are found in:
    A. all eukaryotes
    B. all prokaryotes (bacteria)
    C. some eukaryotes


  1. Chloroplasts are found in:
    A. some prokaryotes
    B. some eukaryotes
    C. all prokaryotes (bacteria)

D. all eukaryotes


  1. ATP stands for
    A. adenosine tris-phosphate
    B. adenine triphosphate
    C. adenosine triphosphate

D. adenine tris-phosphate


  1. The energy currency of the cell is
    A. Glucose
    B. Vitamin D
    C. ATP

D. None of the above


  1. Membrane channels are composed of what macromolecule?
    A. protein
    B. polysaccharide
    C. nucleic acid

D. lipid


  1. Membrane bilayers are primarily composed of what macromolecule?
    A. lipid
    B. nucleic acid
    C. polysaccharide

D. protein


  1. Hereditary information is encoded in what macromolecule?
    A. protein
    B. polysaccharide
    C. nucleic acid

D. lipid


  1. The nucleolus
    A. consists of parts of certain chromosomes
    B. directs the synthesis of ribosomal RNA (rRNA)
    C. consists of DNA

D. All of the above



  1. Plant cells have cell walls consisting primarily of:
    A. pectin
    B. lignin
    C. chitin

D. cellulose


  1. Animal cells contain
    A. cell walls
    B. chloroplasts
    C. mitochondria

D. All of the above

E. None of the above


51. Which one of the following eukaryotic cell structures does not contain DNA?

A. nucleus

B. mitochondria

C. endoplasmic reticulum

D. chloroplast

52. The rough endoplasmic reticulum is
A. an intracellular double-membrane system to which ribosomes are attached
B. an intracellular membrane that is studded with microtubular structures
C. a membranous structure found within mitochondria
D. only found in prokaryotic cells

53. In the nucleus of eukaryotic cells, the genetic material is complexed with protein and organized
into linear structures called
A. centrioles
B. histones
C. chromosomes
D. plasmids

54. Some proteins span the width of the plasma membrane with portions that stick out on either
end. Logically, what part of the protein must be inserted within the fatty acid portion of the
membrane?
A. The hydrophilic region
B. The hydrophobic region
C. The amphipathic region
D. The polar region

55. Which of the following statements is always true?
A. All cells have a cell membrane
B. All cells contain a nucleus
C. All cells have a cell wall
D. All cells have golgi bodies





56. Which of the following substances is able to move freely across the cell membrane?
A. water
B. lipid-soluble molecules
C. water-soluble proteins
D. nucleic acids
E. both (A) and (B)

57. As cell size increases, cell volume increases at _____________________ cell surface area.
A. the same rate as
B. a larger rate than
C. a smaller rate than

58. A cell that had relatively few energy needs would probably have a relatively small number of
A. chromosomes
B. lysosomes
C. ribosomes
D. mitochondria

59. Digestive (hydrolytic) enzymes are stored within the
A. golgi apparatus
B. rough endoplasmic reticulum
C. ribosomes
D. lysosomes

60. A plant cell placed in a hypotonic solution would
A. shrink
B. burst
C. become turgid
D. remain unchanged

61. Which of the following structures is (are) common to both eukaryotic and prokaryotic cells?
A. Nucleus
B. Cell membrane
C. Ribosomes
D. both (A) and (B)
E. both (B) and ©

62. When red blood cells are placed in a concentrated salt solution, they will
A. enlarge but not burst
B. enlarge until they burst
C. remain unchanged
D. shrink

63. Arrange the following terms from the simplest structure to the most complex structure:
cell, macromolecule, organ, tissue, organelle, organism





64. Which of the following are not part of the nucleus in eukaryotic cells?

A. chromosomes
B. nucleolus
C. mitochondria
D. nucleoplasm
E. nuclear envelope


Part III. Diagrams
65. (1 pt) Identify structure D (within the rectangle)

question #2

A. Glycoprotein
B. Cholesterol
C. Phospholipid bilayer
D. Extracellular matrix
E. Membrane protein


66. (1 pt) Identify structure A

question #3

A. Glycoprotein
B. Cholesterol
C. Phospholipid
D. Extracellular matrix
E. Membrane protein


67. (1 pt) Which of these molecules cannot pass directly through the phospholipid bilayer of the cell membrane?

question #5

A. Lipid soluble molecule
B. Water
C. Glucose
D. Hydrogen ion



68. (2 pts) You know that this cell is in a(n) ________solution because the cell ________________

question #9

A. hypertonic.....lost water
B. hypertonic.....gained water
C. isotonic.....neither lost nor gained water
D. hypotonic.....shrunk
E. hypotonic.....swelled













69. (2 pts) The image below is an electron micrograph (TEM, transmission electron microscopy) of an animal cell. Label the golgi apparatus (G) and one of the mitochondria (M) using arrows.



70. (3 pts) The image below is an electron micrograph (TEM, transmission electron microscopy) of an animal cell. Label the endoplasmic reticulum (ER), the nuclear envelope (NE), and the nucleolus (NCLS) using arrows.


71. (1 pt) The TEM below shows what plant organelle? ________________________________




72. (4 pts) In the TEM below of a corn cell, label the nucleoplasm (NP), nucleolus (NCLS), chloroplast (C) and mitochondria (M) using arrows.



73. (4 pts) Design an experiment to demonstrate osmosis. Be specific in discussing materials and expected results. Draw and label a diagram of your experimental setup.
















74. (4 pts) Describe what is meant by the “fluid mosaic model” of the cell membrane.










75. (4 pts) Describe the two main differences between diffusion and active transport.

A.


B.



76. (4 pts) Describe the endosymbiont theory.