1. Which part of a typical land plant is most directly involved with the process of transpiration (loss of water from plants)?
    (1.) ribosomes (2.) mitochondria (3.) nucleus (4.) stomata

2. Which type of organism synthesizes organic materials from inorganic raw materials?
      (1.) autotroph (2.) heterotroph (3.) parasite (4.) saprophyte

3. Which energy conversion occurs during the process of photosynthesis?
      (1.) chemical bond energy to light energy (2.) light energy to mechanical energy
      (3.) mechanical energy to radiant energy (4.) light energy to chemical bond energy

4. The raw materials for photosynthesis are (1.) oxygen and carbon dioxide
      (2.) carbon dioxide and water (3.) oxygen and water (4.) sugar and carbon dioxide

5. The size of the stomata in a leaf are controlled by the (1.) ribosomes (2.) guard cells
      (3.) vacuoles (4.) hormone receptors

6. The conversion of light energy into chemical bond energy can be best carried on by cells
      which contain (1.) centrioles (2.) glycogen (3.) contractile vacuoles (4.) chlorophyll

7. Which process is most closely associated with the activity of the guard cells? (1.) digestion
      (2.) reproduction (3.) locomotion (4.) transpiration

8. Plants which grow in dry environments would most likely have (1.) small leaves with
      few stomates (2.) stomates which are permanently open (3.) large leaves with many
      stomates  (4.) stomates in their stems and roots

9. During photosynthesis in a bean plant, which wavelength of light is least effective? (1.) red
      (2.) blue (3.) green (4.) violet

10. The chief purpose of the photosynthetic process is considered to be the
      (1.) production of water (2.) production of carbon dioxide (3.) production of chlorophyll
      (4.) the conversion of light energy to chemical energy

11. A plant that lacks chloroplasts does NOT (1.) give off oxygen (2.) give off carbon dioxide
      (3.) take in water (4.) take in food

12. Which substances enter a green plant chiefly through its leaves? (1.) oxygen and minerals
       (2.) water and minerals (3.) water and carbon dioxide (4.) carbon dioxide and oxygen

Use the diagram below and your knowledge of the living environment to answer the questions
13 and 14 which follow.  The diagram represents some of the events that take place in a plant cell.

13.  The oxygen and sugar leaving the cell were most likely produced by the processes of
       (1.) hydrolysis  (2.) deamination  (3.) fermentation  (4.) aerobic respiration
       (5.) photosynthesis

14. The letters X, Y, and Z most likely represent (1.) light, ammonia, and H_2O
      (2.) _^CO2, light, and H_{2^{O  (}}3.) _^N2, O₂, and H_{2^{O  (}}4.) light, O₂, and methane

15. Which summary word equation best describes a process that directly requires light energy? (1.) glucose + oxygen carbon dioxide + water + ATP (2.) glucose + glucose maltose + water (3.) glucose alcohol + carbon dioxide + ATP (4.) water + carbon dioxide glucose + oxygen + water

16. After it is produced by an autotroph, glucose will most likely be (1.) utilized to capture light energy from the Sun (2.) combined with three fatty acids to form a lipid (3.) used as an energy source in cellular respiration (4.) converted into storage products by hydrolysis

17. A small piece of black paper was folded in half and used to
part of the top and bottom portions of a leaf on a living
geranium plant. After the plant was kept in sunlight for
days, the paper was removed. The leaf was then boiled in
alcohol to remove the chlorophyll and placed in Lugol's
solution. Only the part of the leaf that had not been covered
turned blue black. This investigation was most likely testing the hypothesis (1.) light is necessary for photosynthesis to occur (2.) green plants use carbon dioxide in photosynthesis (3.) alcohol plus chlorophyll forms Lugol's solution (4.) plants use alcohol in the production of chlorophyll

Free Response Section

Use the diagram at the right and your knowledge of the living environment to answer questions 1 through 3 which follow. 1.   What life process is best represented by this overall diagram and why? 2.  What gas is probably bubbling from the top of the glass tube emerging from the rubber stopper? 3.  What color of light in the visible sunlight spectrum is least effective for this process to occur?

4.)  Explain how each of these factors influence the rate of photosynthesis in most plants.

a.)  increasing carbon dioxide levels

b.)  limiting the amount of water

c.)  increasing temperature from 0 C to 35 C

d.) increasing temperature over 35 C

e.) increasing light intensity

Now hopefully some correct answers!  Please send any comments or questions to jbuckley@ekcsk12.org

Multiple Choice Section

1.    4

2.    1

3.    4

4.    2

5.    2

6.    4

7.    4

8.    1

9.    3

10.    4

11.    1

12.    4

13.    5

14.    2

15.    4

16.    3

17.    1

Free Response Section Answers

1.  photosynthesis

2.  oxygen

3.  green

4.   a.)  Increasing the level of CO2 tends to increase the rate of photosynthesis.

      b.)  Limiting the amount of water to the extent of creating drought conditions will limit the amount of photosynthesis.

      c.)  Increasing temperature from 0 C to 35 C tends to increase the rate of photosynthesis.

      d.)  Increasing temperatures over 35 C will decrease the rate of photosynthesis.

      e.)  Increasing light intensity will increase the rate of photosynthesis until a certain light intensity is reached, after this intensity is reached, increasing the light intensity will have no effect on the photosynthesis rate.