SC 135 - Second Exam Spring 2012
Links in each number connect to the pertinent sections of the online book.
On the line to the left, place the
letter of the choice that best answers the question.
1. Someone who is lactose intolerant would have a problem digesting a(n)
Lipid b. Protein
c. Sugar d. Enzyme
2. Once sugar has been stirred into a cup of water, the sugar is the
__________ a. Solvent b. Solution c. Solute d. Osmont e. Tasty bits
3. Polydehydrogenase would belong to which class of organic molecule?
__________ a. Oils
b. Enzymes c. Starches d. Nucleic Acids
4. The Apull@ in muscles is generated by
__________ a. Lipids b. Nucleic acids c. Proteins d. Carbohydrates e. Microscopic horsies
In many acid-base reactions, H+ and OH-
combine to form water. The H+, in
_______ a. Acidified b. Oxidized c. Reduced d. Alkalated e. Humiliated
salt-water crocodile produces "crocodile tears," with much more salt
than the cells that make them.
Osmosis b. Active transport c. Passive
transport d. Photosynthesis
7. Which features are found in all cells?
________ a. Cell walls
and chromosomes b. Cell
membranes and cytoplasm
of the digestive juices within the human small intestine is between 7.5 and 8.5.
__________ a. Acidic b. Neutral c. Basic d. Dehydrated e. Icky
9. Large organic molecules are assembled using which process?
__________ a. Dehydration
synthesis b. Polymer fusion c.
10. RNA differs from DNA in that RNA
_______ a. Has one more strand b. Uses
one different nucleotide
11. Energy is gotten from sugar through the process of
Respiration b. Reproduction
Radioactivity d. Photosynthesis
12. An allele is a
________ a. A type of
membrane attachment b. Molecule used
for energy storage
Answer any eight of the following questions for 4 Points Each.
Answer any four
of the following questions for Eight Points Each.
Answer as many as you are able. Wrong answers will not result in points being lost from the main exam. You can get partial credit on these answers.
What makes local ponds and lakes Aturn over@ in the fall? Three Points.
Where exactly do the numbers of the pH system come from? Three Points.
Why are foods in our stomachs exposed to powerful acids before actually getting digested? Three Points.
What's the actual name of the sugar constructed during photosynthesis? Three Points.
What process looks a lot like photosynthesis backwards? Three Points.
Antibody molecules have two functional ends. What, for Three Points Each, does each end do?
People requiring intravenous fluids are given a saline (salt) solution rather than pure water. Why? Three Points.
How is a phospholipid molecule structured? How are the pieces put together? Three Points.
Sometimes dangerous disease bacteria pick up an ability to resist antibiotic drugs without developing the resistance themselves. How do they do this? Three Points.
Which Kingdoms include organisms that can make a cell wall? Three Points Each. A wrong guess will negate a right guess.