Biology Sample Examination with Answer Keys
1st Long Examination
I. Multiple Choice. Choose the best answer. Write the letter of your choice on your answer sheet.
D 1. DNA is unique among molecules in that it can a. form multipolymer complex c. withstand very high temperatures b. come apart and re-form d. replicate itself
B.2. Which of the following cellular organelles breaks down complex macromolecules, such as polysaccharides and proteins? a. Golgi complex b. lysosome c. rough ER d. mitochondrion
A.3. The most abundant lipid in a cell membrane a. phospholipids b. steroid c. cholesterol d. chitin
B. 4. When the fluid outside a cell has a greater concentration of a given molecule than the fluid inside the cell, the external fluid is a. isotonic b. hypertonic c. hypotonic d. ultratonic
A. 5. The special structures that carry materials across the cell membrane are a. proteins b. fatty acids c. phosphates d. phospholipids
D. 6. Which of the following processes makes direct use of oxygen? a. glycolysis b. fermentation c. Krebs cycle d. electron transport
A. 7. Biological oxidation like digestion and glycolysis (cellular respiration) are examples of a. catabolism or bioenergetics c. anabolic or bioenergetics b. biosynthesis or catabolism d. biosynthesis or anabolic
D. 8.The cell membrane is selectively permeable. This means that a. is highly folded c. allows any molecules to pass through b. allows all materials to pass through d. allows only certain materials to pass
C. 9. Which of the following is not part of facilitated diffusion? a. Solutes are moved by a change in shape in the carrier protein. b. The solute can be moved in either direction. c. The process requires energy input. d. The process is passive.
A. 10.The special structures that carry materials across the cell membrane are a. proteins b. fatty acids c. phosphates d. phospholipids
D. 11. Which of the following substances does not pass across membranes by simple diffusion?
I. Multiple Choice. Choose the best answer. Write the letter of your choice on your answer sheet.
D 1. DNA is unique among molecules in that it can a. form multipolymer complex c. withstand very high temperatures b. come apart and re-form d. replicate itself
B.2. Which of the following cellular organelles breaks down complex macromolecules, such as polysaccharides and proteins? a. Golgi complex b. lysosome c. rough ER d. mitochondrion
A.3. The most abundant lipid in a cell membrane a. phospholipids b. steroid c. cholesterol d. chitin
B. 4. When the fluid outside a cell has a greater concentration of a given molecule than the fluid inside the cell, the external fluid is a. isotonic b. hypertonic c. hypotonic d. ultratonic
A. 5. The special structures that carry materials across the cell membrane are a. proteins b. fatty acids c. phosphates d. phospholipids
D. 6. Which of the following processes makes direct use of oxygen? a. glycolysis b. fermentation c. Krebs cycle d. electron transport
A. 7. Biological oxidation like digestion and glycolysis (cellular respiration) are examples of a. catabolism or bioenergetics c. anabolic or bioenergetics b. biosynthesis or catabolism d. biosynthesis or anabolic
D. 8.The cell membrane is selectively permeable. This means that a. is highly folded c. allows any molecules to pass through b. allows all materials to pass through d. allows only certain materials to pass
C. 9. Which of the following is not part of facilitated diffusion? a. Solutes are moved by a change in shape in the carrier protein. b. The solute can be moved in either direction. c. The process requires energy input. d. The process is passive.
A. 10.The special structures that carry materials across the cell membrane are a. proteins b. fatty acids c. phosphates d. phospholipids
D. 11. Which of the following substances does not pass across membranes by simple diffusion?