Answer the following question given this paragraph: 8.5 Regulation of enzyme activity helps control metabolism. Q: Metabolism is controlled by regulation of what? Choices: - sequence activity - nucleus activity - cell activity - enzyme activity A:
enzyme activity
Answer the following question given this paragraph: Q: Habitat loss, introduced species, overharvesting, and global change are major threats to what? Choices: - the earth's gravity - the sun - transportation - biodiversity A:
biodiversity
Q: Answer the following question given this paragraph: The presence of solute particles has the opposite effect on the freezing point of a solution. When a solution freezes, only the solvent particles come together to form a solid phase, and the presence of solute particles interferes with that process. Therefore, for the liquid solvent to freeze, more energy must be removed from the solution, which lowers the temperature. Thus, solutions have lower freezing points than pure solvents do. This phenomenon is called freezing point depression. For every mole of particles in a liter of water, the freezing point decreases by about 1.9C. Both boiling point elevation and freezing point depression have practical uses. For example, solutions of water and ethylene glycol (C2H6O2) are used as coolants in automobile engines because the boiling point of such a solution is greater than 100C, the normal boiling point of water. In winter, salts like NaCl and CaCl2 are sprinkled on the ground to melt ice or keep ice from forming on roads and sidewalks. This is because the solution made by dissolving sodium chloride or calcium chloride in water has a lower freezing point than pure water, so the formation of ice is inhibited. Q: When a solution freezes, only what particles come together to form a solid phase, while the presence of solute particles interferes with that process? Choices: - pigment - hydrogen - diluent - solvent A:
A: solvent
Question: Answer the following question given this paragraph: ART CONNECTION QUESTIONS 1. Figure 34.11 Which of the following statements about the digestive system is false? a. Chyme is a mixture of food and digestive juices that is produced in the stomach. Food enters the large intestine before the small intestine. In the small intestine, chyme mixes with bile, which emulsifies fats. The stomach is separated from the small intestine by the pyloric sphincter. Figure 34.12 Which of the following statements about the small intestine is false? a. Absorptive cells that line the small intestine have microvilli, small projections that increase surface area and aid in the absorption of food. Q: In the small intestine, chyme mixes with bile, which emulsifies what substances? Choices: - sugars - acids - proteins - fats A:
Answer: fats
*Question*
Answer the following question given this paragraph: A substance is stored in a reservoir. The amount of time it stays in that reservoir is its residence time. Q: What do we call the amount of time a substance is stored in a reservoir? Choices: - storage time - latency - presence time - residence time A:
**Answer**
residence time
(Q).
Answer the following question given this paragraph: Photosynthesis occurs in the chloroplast, an organelle specific to plant cells. Q: Which organelle specific to plant cells is responsible for photosynthesis? Choices: - the mitochondria - the vacuole - the lipid - the chloroplast A:
(A).
the chloroplast