Sample Exam I

You will be allowed a 8.5 inch X 11 inch note card during the exam on monday  1/26. A calculator will not be necessary for any of the questions. For each question below, click on the circle next to the correct answer. When you are finished with the test, push the 'Score my test' button at the bottom of the page. Good luck!

Question #1
Fill in the blanks in the following statement.  The relationship between the field of view through a light microscope and the objective lens magnification can be summarized by stating that as the magnification of the objective lens ______1_______ the field of view will ______2___________. 

A.   1. increases ; 2. increase.
B.   1. increases ; 2. decrease.
C.  1. decreases ; 2. decrease.
D.  1. decreases ; 2. remains the same..

Question #2
  A simple experiment was conducted to determine whether different colors of light had an effect on the growth rate of wheat plants. 50 wheat plants are grown in red light, 50 wheat plants are grown in green light, and 50 wheat plants are grown in white light. The wheat plants were given 10 ml of water each day. The mean stem length at the end of 12 days for the green light was 13cm, for the red light was 15cm and for the white light 20 cm. The independent variable for this experiment is?

A. The type of plant (wheat)
B. The type of light (red, green, and white)
C. The stem height at the end of 12 days
D. The amount of water (10 ml )

Question #3
 Which of the following is not a characteristic that defines organic matter as living?

A. Homeostasis
B. Reproduction
C. Cell membrane
D. Photosynthesis

Question #4
 How many covalent bonds can an atom with an atomic number of 14 form?

A. 1
B. 2
C. 3
D. 4

Question #5
Which of the following is one reason why water has a high heat storage capacity?

A. water readily combines with other compounds
B. most compounds are water soluble
C. One water molecule forms hydrogen bonds between other water molecules
D. water adhesion prevents heat loss

Question #6               Pigment                           Rf Value                
Known  Rf Values =  Phycocyanin                         0.35

                                    Xanthophyll c                        0.15

                                    Xanthophyll d                        0.85

                                    Chlorophyll a                         0.50

                                    Chlorophyll b                         0.25

To identify the pigments in an new species of algae, a scientist uses a thin layer chromatography strip.  The separation appears to have a yellow to greenish colored pigment with an Rf Value of 0.28.  Which pigment does the new species of algae most likely have? 

A. Phycocyanin
B. Chlorophyll b 
C. Xanthophyll c
D. Xanthophyll d

Question #7
  Which of the following is a function of proteins in an organism’s cellular system?

A. long term energy storage
B. major component of an enzyme
C. major component of glycogen
D. vacuole storage

Question #8
Plants and Algae are not classified into the same kingdom because _________________. 

bject is     A.  Plants are heterotrophic and Algae are not. 

B. Plants are multicellular organisms and Algae are not.   

C. Plants have chloroplasts and Algae do not.     

Question #9
                              ATP is__________________?

A. produced by the destruction of ADP
B. the energy currency of a cell
C. expended in the process of photosynthesis
D. produced during the phosphorylation of any organic compound

Question #10
Photosynthesis is the process of converting carbon dioxide into glucose. In this process water is oxidized and the carbon dioxide is ____________?

A. converted to electromagnetic energy
B. reduced
C. given off as a gas
D. transferred to photosystem I

Question #11
Water is required for photosynthesis to occur. Which stage of photosynthesis requires water?

A. Calvin cycle
B. Photosystem I
C. Photosystem II
D. Electron transport system

Question #12
Relative to prokaryotic cells, eukaryotic cells are_________________?

A. Larger and more complex
B. Larger and less complex
C. Smaller and more complex
D. Smaller and less complex

Question #13
The ultimate source of (nearly) all energy in food produced on Earth is ____________?

A. The Krebs cycle
B. The Calvin cycle
C. Sunlight
D. Photosynthesis

Question #14
The primary source of carbon for the process of photosynthesis is ____________?

A. Starch
B. Glucose
C. Carbon dioxide
D. Phosphate Buffer

Question #15
If an organism is in the field of view using a compound light microscope at 40x; will that organism still be in the field of view if the objective lens is switched to 10x (assuming the organism is not mobile)?  

A.  No: the field of view will be smaller, so the organism will be outside the field of view.
B.  Yes: the field of view will be larger and the organism will still be inside the field of view.  
C.  No: the field of view will be larger but the depth of field will be shorter. 
D.  None of the above.

Question #16
What is a hypothesis? 

A.  An observation
B. A theory
C.  A tentative explanation
D. A question

Question #17
A lipid is not soluble in water because___________________.

A. the hydrogen bonds are oriented different.
B. the compound is non-polar.
C. the compound is polar.
D. there are too many double bonds within the compound.

Question #18
If the primary structure of a protein is changed, which of the following is true?

A. the quaternary structure is also changed and will not maintain its original function. 
B. the protein has been denatured and will not maintain its original function
C.  the protein has been denatured and will maintain its original function
D. the protein has the same amino acid sequence and will maintain its original function.