Question | Answer |
1. Which type of microscope can produce three-dimensional images of a cell’s surface? | scanning electron
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2. A tomato plant is a prokaryote or a eukaryote? | Eukaryote
| 3. Which organelle breaks down organelles that are no longer useful? | lysosome
| 4. The diffusion of water across a selectively permeable membrane is called | osmosis
| 5. What is it called when the concentration of dissolved substances in the solution is the same as the concentration of dissolved substances inside the cell? | isotonic
| 6. movement of particles from an area of higher concentration to one of lower concentration | diffusion
| 7. A recipe says to mix 100 g of sugar, a pinch of NaCl, and 1 g vanilla flavoring in 113 g of butter. Which ingredient is the solvent? | Butter
| 8. What are the reactants in the equation for cellular respiration? | oxygen and sugar
| 9. Where does glycolysis take place? | cytoplasm
| 10. What happens after glycolysis if there is no oxygen present? | fermentation
| 11. What are the reactants of photosynthesis? | water, carbon dioxide, and sunlight
| 12. What are the products of photosynthesis? | sugar and oxygen
| 13. What are the products of cellular respiration? | ATP, carbon dioxide, and water
| 14. `Describe the two roles of enzymes. | lower activation energy and speed up the rate of the reaction
| 15. Which macromolecule stores energy for an organism? | Lipids
| 16. In humans and other multicelluar organisms, which substance plays a central role as an energy source? | Carbohydrates
| 17. A substance with a pH of 6 is called | acid
| 18. An organic compound is a compound that contains | carbon
| 19. Which class of macromolecules store and communicate genetic information? | nucleic acids
| What makes water “sticky”? | Polar / hydrogen bonds |