BS 218 Lab day ________T _________Th
SAMPLE EXAM Name __________________________________________
THIS IS A SAMPLE EXAM. IT IS MEANT TO ILLUSTRATE THE TYPES OF QUESTIONS YOU MIGHT EXPECT ON A BS218 EXAM. THIS EXAM HAS QUESTIONS ON ITEMS WE HAVE NOT COVERED IN CLASS. IT IS JUST A SAMPLE.
This exam is worth 100 points. Point value of the various types of questions is shown in the body of the exam.
For multiple choice questions, use CAPITAL letters to indicate your answer choices.
Exam taking tip: Skim through the whole exam quickly. Then, begin with questions you feel sure of and continue from there. Take time to check over the test to be sure you’ve completed all the parts.
1. Two of the six kingdoms of life are the Plants and Animals. Name two others (total of 2 points)
____________________________________ and _______________________________________
2. Put the following levels of biological organization into sequential order, smallest to largest. Indicate your answer by ranking the levels (1 = smallest, 5 = largest). If you get three correct = 1 point. All five = 2 points.
_____ organism
_____ community
_____ population
_____ cell
_____ organelle
_____ 3. (2 points) All of the following are properties of all living things EXCEPT:
A. Have DNA as the genetic material
B. Are made of cells
C. Are able to maintain a constant internal environment (homeostasis)
D. Are able to think
E. Use energy from outside sources
Questions 6 - 10 (One point each) Match each of the following cell structures to its description by placing the correct letter in the blank. Each answer will be used only once. (Remember, use CAPITAL letters and write clearly)
| _____ 6. Largest organelle, contains genetic material _____ 7. Contains strong enzymes, digests used molecules for reuse in cell _____ 8. Divides cytoplasm into compartments, forming transport channels _____ 9. Gel-like watery substance in cells _____ 10. Flattened membrane stacks, packages and distributes materials
|
A.
nucleus B. cytoplasm C. ER D. cell wall E. golgi apparatus F. lysosomes |
Questions 18 Identify one structure listed above (answers A-F for questions 6-10) that is found in plant cells but not in animal cells (one point )
_____ 18.
Questions 21 . Identify a structure listed above (answers A -F for questions 6-10) that is found in prokaryotes as well as eukaryotes. (one point each)
_____ 21. For questions 24 - 27, complete the line in the table for each of the four main types of macromolecules in cells, using the hints provided. 3 points each.
| Name of Macromolecule | Building block molecule | Function in cells | A good food source is: | |
| 24.
|
Carbohydrates | |||
| 25.
|
butter, oils |
Question 28: 5 points
Your school has been offered a contract for snack foods for K-2 grades and the principal has asked you teachers for recommendations as to which choice you would prefer. Please analyze the nutritional values of these snacks (as shown in the food labels, next page) and make a recommendation as to which you think is the best snack for the children. Please use the following form:
Recommended Snack ___ #1 ____#2
Approximate Percent of calories from fat in recommended snack (circle one) 25% 33% 50% 66% 75%
Nutritional justification for your recommendation: (Briefly compare the two snacks: 3-4 sentences should be enough.)
| Snack food #1 | Snack food #2 |
| Serving size 39 grams | Serving size 56 grams |
| Calories 210 | Calories 180 |
| Total Fat 12 grams | Total fat 10 grams |
| Saturated Fat 8 grams | Saturated fat 1 grams |
| Sodium 35 mg | Sodium 300 mg |
| Total Carbohydrate 23 g | Total carbohydrate 21 g |
| Dietary fiber 1 g | Dietary fiber 4 g |
| Sugars 20 g | Sugars 4 g |
| Protein 3 g | Protein 6 g |
Questions 29 31. 2 points each
_____ 29. Enzymes are
A. carbohydrates
B. strong acids
C. sugars
D. proteins
E. phospholipids
32. (7 points) Explain the following equation, being sure to define each term and explain what happens at each stage.
E + S ---------> ES -------------> E + P
_____ 37. (2 points) A membrane that permits some substances and water to pass through is termed
A. impermeable
B. permeable
C. semipermeable
For questions 38 to 39, name the labeled parts of the membrane (1 points each)
38 ____________________________
39. ______________________________
43.(2 points) What energy powers the passive transport mechanisms?
44. (2 points) What energy powers the active transport mechanisms?
_____ 45.( 2 points) Which of the following occur during interphase?
A. The cell reproduces
B. The DNA duplicates
C. The cell carries out its functions of growth, maintenance, etc.
D. A and C are true
E. B and C are true
_____ 46. (2 points) Peas have a diploid number of 14. During prophase, how many homologous pairs of chromosomes are present?
A. 28
B. 14
C. 7
D. none.
_____ 47. (2 points) A chromosomal structure with four arms and one centromere is called a
A. homologous pair
B. duplicated chromosome
C. pair of nonsister chromotids
D. chromatin
For questions 48 to 49, identify the stage of mitosis depicted below. (2 points each)
48.__________________________ 49. ____________________________
52. (6 points) What is the function of mitosis? What are the progeny (daughter) cells like? Where and when does mitosis occur?
53. Write out the general equations for photosynthesis and respiration (2 pts each).