Question: Q: The conversion of food that is consumed to nutrients involves what two major processes: Read this paragraph and choose the correct option from the provided answers: 16.2 | Digestive System By the end of this section, you will be able to: Explain the processes of digestion and absorption Explain the specialized functions of the organs involved in processing food in the body Describe the ways in which organs work together to digest food and absorb nutrients Describe the essential nutrients required for cellular function that cannot be synthesized by the animal body Describe how excess carbohydrates and energy are stored in the body All living organisms need nutrients to survive. While plants can obtain nutrients from their roots and the energy molecules required for cellular function through the process of photosynthesis, animals obtain their nutrients by the consumption of other organisms. At the cellular level, the biological molecules necessary for animal function are amino acids, lipid molecules, nucleotides, and simple sugars. However, the food consumed consists of protein, fat, and complex carbohydrates. Animals must convert these macromolecules into the simple molecules required for maintaining cellular function. The conversion of the food consumed to the nutrients required is a multistep process involving digestion and absorption. During digestion, food particles are broken down to smaller components, which are later absorbed by the body. This happens by both physical means, such as chewing, and by chemical means. One of the challenges in human nutrition is maintaining a balance between food intake, storage, and energy expenditure. Taking in more food energy than is used in activity leads to storage of the excess in the form of fat deposits. The rise in obesity and the resulting diseases like type 2 diabetes makes understanding the role of diet and nutrition in maintaining good health all the more important. Choices: - secrete and absorption - untangling and absorption - absorption and excretion - digestion and absorption A:
Answer: digestion and absorption

Question: Q: What describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell? Read this paragraph and choose the correct option from the provided answers: Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell, as shown in Figure below . Exocytosis occurs when a cell produces substances for export, such as a protein, or when the cell is getting rid of a waste product or a toxin. Newly made membrane proteins and membrane lipids are moved to the plasma membrane by exocytosis. Choices: - autolysis - endocytosis - expulsion - exocytosis A:
Answer: exocytosis

Question: Q: A red blood cell will swell and burst when placed in a? Read this paragraph and choose the correct option from the provided answers: A cell that does not have a rigid cell wall, such as a red blood cell, will swell and lyse (burst) when placed in a hypotonic solution. Cells with a cell wall will swell when placed in a hypotonic solution, but once the cell is turgid (firm), the tough cell wall prevents any more water from entering the cell. When placed in a hypertonic solution, a cell without a cell wall will lose water to the environment, shrivel, and probably die. In a hypertonic solution, a cell with a cell wall will lose water too. The plasma membrane pulls away from the cell wall as it shrivels, a process called plasmolysis . Animal cells tend to do best in an isotonic environment, plant cells tend to do best in a hypotonic environment. This is demonstrated in Figure below . Choices: - acidic solution - exothermic solution - dissolved solution - hypotonic solution A:
Answer:
hypotonic solution