snippet

My Ad Code

Friday, October 24, 2014

MULTIPLE CHOICE TEST IN PHOTOSYNTHESIS AND CELLULAR RESPIRATION

Evaluation is an integral part of the learners.  To test your ability or your students try the following questions about Photosynthesis and Cellular Respiration.




              1.  Where do light-dependent reactions of photosynthesis occur?
a.       in the guard cell of the stomata
b.      in the chloroplast of stroma
c.       within the thylakoid membranes of the chloroplast
d.      in the leaf cell cytoplasm
              2.  The oxygen produced during photosynthesis comes from
a.       the breakdown of CO2.
b.      the breakdown of water.
c.       the breakdown of both CO2 and water.
d.      the breakdown of oxaloacetic acid.
             3.  Photosynthesis is measured in the leaf of a green plant exposed to different wavelengths of light.  Photosynthesis is
a.       highest in green plants.
b.      highest in red light.
c.       highest in blue light.
d.      highest in red and blue light.
             4.  Where do the light-independent, carbon-fixing reactions occur?
a.       in the guard cell cytoplasm
b.      in the chloroplast stroma
c.       within the thylakoid membrane
d.      at night in the thylakoids
             5.  Oxygen and carbon dioxide are gases that cycle out in the ecosystem. Which of the following gases is important to photosynthesis?
                        a. ozone gas                                         c. oxygen
b. water vapor                                                 d. carbon dioxide
             6.  The light-dependent reaction of photosynthesis must come first before the light independent reaction because its products are important to the fixation of carbon dioxide.  Which of the following is/are the product/s of the light–dependent reaction?
a. ADP only                                        c. ATP only
b. NADPH only                                  d. NADPH and ATP
             7.  Plants are very unique among other organisms due to their capability to trap sunlight and make their own food.  Which of the following enables plants to trap energy from the sun?
a. epidermis                                         c. cuticle
b. chloroplast                                       d. chlorophyll
             8.  Plants make food by absorbing water and carbon dioxide. Which of the following substances is the origin of oxygen released as gas by green plants during photosynthesis?
a. water                                               c. carbon dioxide
b. sugar                                                d. ribulose-1,5-biphosphate
            9.  The role of accessory  pigment is to
a.       provide an additional photosystem to generate more ATP.
b.      allow photosynthesis to occur in the dark.
c.       donate electrons to cholophyll reaction centers.
d.      capture additional light energy and transfer it to the chlorophyll reaction centers.
            10.  The generation of ATP by electron transport in photosynthesis and cellular respiration depends upon
a.       a proton gradient across a membrane.
b.      proton pumps driven by electron transport chains.
c.       an ATP synthesizing enzymes complex.
d.      a, b, c, are all required for ATP generation.

            11.  A farmer is experiencing a problem in growing his crops. Most of the leaves of the crops are turning yellow. Which of the following will likely result from the yellowing of the leaves of the crops?
a. It will increase the production of food.
b. It will decrease the production of food.
c. The production of food will remain the same.
d. None of the above.
            12.   Which of the following materials are cycled out by the chloroplast and mitochondrion?
a. Carbon dioxide, water, oxygen, and ATP
b. Carbon dioxide, water, sugar and oxygen
c. Sugar, water, oxygen, and ATP
d. Sugar, water, sunlight, and oxygen
            13.  Where does glycolysis occur?
a.       Cytoplasm
b.      Matrix of mitochondria
c.       Inner membrane of mitochondria
d.      Outer membrane of mitochondria
            14.  Where does respiratory electron transport occur?
a.       Cytoplasm
b.      Matrix of mitochondria
c.       Inner membrane of mitochondria
d.      Outer membrane of mitochondria
            15.  What are the economically important products of the fermentation of grape juice by yeast that are essential for the manufacture of champagne?
a.       Lactic acid and NAD+                 c.  ATP and CO2
b.      ATP and ethanol                           d.  CO2 and ethanol
            16.  The majority ATP produced in aerobic respiration comes from
a.       Glycolysis.
b.      the electron transport system.
c.       the citric cycle.
d.      Fermentation.
            17.  Pyruvate is the product of glycolysis. If there is no oxygen available to cells of the human body, what becomes of pyruvate?
a. alcohol                                             c. CO2
b. lactic acid                                        d. a and c
            18.  How many molecule/s of carbon dioxide is/are released from one pyruvic acid molecule being oxidized?
a. 1                  b. 3                             c. 2                              d. 4
            19.  Oxygen is essential in cellular respiration. What is the role of oxygen in the electron transport chain?
a. It provides a high energy proton.                c. It serves as the final acceptor.
b. It releases an electron.                                 d. It forms water.
            20.  The process that converts glucose into two molecules of pyruvate is
a.       glycolysis                                                  c.  the citric acid cycle
b.      fermentation                                              d.  electron transport chain
            21.  What will happen if ATP and NADPH are already used up at night?
a. Less oxygen will be produced.                   c. Glucose production will stop.
b. Less carbon dioxide will be used.               d. Water molecule will split to form
    electrons.
            22.  Which of the following best explains why planting trees and putting up urban gardens can help prevent global warming?
a. Plants produce oxygen during day time and perform transpiration.
b. Plants absorb carbon dioxide that contributes to the rising of earth’s temperature.
c. Plants perform photosynthesis.
d. Plants use up carbon dioxide during photosynthesis, release oxygen to the environment, and perform transpiration.

            23. Sugarcane juice is used in making table sugar which is extracted from the stem of the plant. Trace the path of sugar molecules found in the stem from where they are produced.
a. Root ---- stem                                  c. flowers ---- leaf ----stem
b. Leaf ----- stem                                 d. roots --- leaf ---- stem
            24. What happens to the Hydrogen carried to the electron transport chain?
a. It ends up as water              c. It is recycled to Glycolysis
b. It forms lactate                                d. It forms methane


ANSWERS KEY:

1. d
2. b
3. d
4. b
5. d
6. d
7. d
8. a
9. d
10. d
11. b
12. b
13. a
14. c
15. d
16. b
17. b
18. c
19. c
20. a
21. c
22. d
23. b
24. a

1 comment: