BIOA01H3 F Life on Earth PRACTICE QUESTIONS for FINAL EXAM ACTUAL TIPS (possible questions with correct answers) new update University of Toronto, Scarborough

BIOA01H3 F Life on Earth PRACTICE QUESTIONS for FINAL EXAM ACTUAL TIPS (possible questions with correct answers) new update University of Toronto, Scarborough Here are 60 Practice Questions so you can have an idea of the kind of questions that are likely to be asked on the Final Exam. 1. Which structure is common to plant and animal cells? A. chloroplast B. wall made of cellulose C. central vacuole D. mitochondrion E. centriole 2. Which of the following is true for all exergonic reactions? A. The products have more total energy than the reactants. B. The reaction proceeds with a net release of free energy. C. Some reactants will be converted to products. D. A net input of energy from the surroundings is required for the reactions to proceed. E. The reactions are non-spontaneous. 3. Which of the following would likely move through the lipid bilayer of a plasma membrane most rapidly? A. CO2 B. an amino acid C. glucose D. K+ E. starch 4. Which of the following statements describes NAD+? A. NAD+ is reduced to NADH during both glycolysis and the citric acid cycle. B. NAD+ has more chemical energy than NADH. C. NAD+ is reduced by the action of hydrogenases. D. NAD+ can donate electrons for use in substrate-level phosphorylation. E. In the absence of NAD+, glycolysis can still function. 5. In what way do the membranes of a eukaryotic cell vary? A. Phospholipids are found only in certain membranes. B. Certain proteins are unique to each membrane. C. Only certain membranes of the cell are selectively permeable. D. Only certain membranes are constructed from amphipathic molecules. E. Some membranes have hydrophobic surfaces exposed to the cytoplasm, while others have hydrophilic surfaces facing the cytoplasm. 6. According to the fluid mosaic model of membrane structure, proteins of the membrane are mostly A. spread in a continuous layer over the inner and outer surfaces of the membrane. B. confined to the hydrophobic core of the membrane. C. embedded in a lipid bilayer. D. randomly oriented in the membrane, with no fixed inside-outside polarity. E. free to depart from the fluid membrane and dissolve in the surrounding solution. 7. Which of the following factors would tend to increase membrane fluidity? A. a greater proportion of unsaturated phospholipids B. a greater proportion of saturated phospholipids C. a lower temperature D. a relatively high protein content in the membrane E. a greater proportion of relatively large glycolipids compared with lipids having smaller molecular masses 8. Which of the following processes includes all others? A. osmosis B. diffusion of a solute across a membrane C. facilitated diffusion D. passive transport E. transport of an ion down its electrochemical gradient 9. Choose the pair of terms that correctly completes this sentence: Catabolism is to anabolism as is to . A. exergonic; spontaneous B. exergonic; endergonic C. free energy; entropy D. work; energy E. entropy; enthalpy 10. Most cells cannot harness heat to perform work because A. heat is not a form of energy. B. cells do not have much heat; they are relatively cool. C. temperature is usually uniform throughout a cell. D. heat can never be used to do work. E. heat denatures enzymes. 11. Which of the following metabolic processes can occur without a net influx of energy from some other process?......