Try the Study Guides and Lab Tips on the BIO 103 Open Lab Help Page!
Lab 4 - The Cell
1. Identify the cells under the microscope.
  A. frog blood cells You may have to identify any of the specimens you observed
in the lab - REVIEW THEM ALL!
  B. human blood cells
  C. scalp cells
  D. plant epidermis
2. When an Elodea cell is bathed in distilled water:
  A. water moves to the inside of the cell and the cell expands
  B. water moves out of the cell and the cell shrinks
  C. nothing changes
3. The cell organelle that is the site of ATP synthesis in cells - the "powerhouse" is:
  A. mitochondrion
  B. ribosome
  C. central vacuole
  D. nucleolus
4. Which organism below moves by means of cilia?
  A. Amoeba
  B. Euglena
  C. Paramecium
  D. Elodea
5. Relative to a potato cube, which term below would describe an 80% sucrose solution?
  A. hypotonic
  B. isotonic
  C. hypertonic
6. A potato cube in an ISOTONIC SOLUTION would:
  A. gain weight as water moves in and eventually sink
  B. lose weight as water moves out and float on top
  C. neither gain nor lose weight - water is moving in and out at the same rate
7. Which of the following is found in plant cells but NOT in animal cells?
  A. mitochondria
  B. ribosomes
  C. nucleus
  D. chloroplasts
8. The command center of the cell that directs its daily activities is the :
  A.  cell membrane
  B.  nucleus
  C.  ribosome  
  D.  cell wall  
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Lab 5 - Respiration and Photosynthesis
1. What is the purpose of the colored filter in the photosynthesis experiment?
  A. change the wavelength of light and therefore change the rate of photosynthesis
  B. change the temperature and the rate of photosynthesis
  C. stop photosynthesis altogether by preventing white light from striking the plant
  D. increase the rate of anaerobic metabolism
2. Aerobic cellular respiration occurs within which of the following?
  A. nucleus
  B. chloroplast
C. mitochondrion
D. plasma membrane
3. Blowing bubbles of carbon dioxide into _____ produced a chalky white precipitate.
  A. sodium bicarbonate
  B. lime water
  C. ethyl alcohol
  D. carbonic acid
4. Chloroplasts are the sites of _____ within plant cells.
  A. cellular respiration
  B. photosynthesis
  C. replication
  D. restitution
5. The difference between gross photosynthesis and net photosynthesis in your experiment was:
  A. Oxygen gas consumed by simulaneous aerobic respiration
  B. beginning and ending weight of the Elodea
  C. beginning and ending weight of the experimental solution
  D. all of the above
6. The reactions of photosynthesis and respiration are basically the opposite of one another.
  A. True
  B. False
7. Which of the following would you expect to greatly slow the process of photosynthesis?
  A. moving the lamp closer to the Elodea
  B. allowing only white light to pass through without any colored filters
  C. placing the Elodea in an ice bath
  D. increasing the amount of carbon dioxide in the solution
8. Name the organelle at the tip of the pointer.
  A. chloroplast
  B. mitochondrion
  C. cell membrane
  D. nucleus
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Lab 6- DNA and Mitosis
1. Two complete "DNA Ladders" are the result of _________.
  A. crossing-over
  B. meiosis
  C. replication
  D. transcription
2. Name the stage of mitosis visible under the microscope.
  A. Interphase You can expect 3 or 4 questions

where you must identifiy the stage

under the microscope - in plant AND animal cells!

  B. Prophase
  C. Metaphase
D. Anaphase
  E. Telophase
3. Which of the following is a correct pairing of nitrogenous bases?
  A. adenine to cytosine
  B. thymine to guanine
  C. ribose to deoxyribose
  D. cytosine to guanine
4. Which of the models represents a complete nucleotide?
  A. sugar and phosphate Models like the ones you built in lab will

be displayed during the test!

  B. sugar and base
  C. phosphate and base
  D. sugar, phosphate and base
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