1. Cite everyday illustrations of the first and second laws of thermodynamics. How does the laws of thermodynamics underlie every organism’s ability to function?
The first law of thermodynamics states that energy cannot be created or destroyed; however, it can be converted to other forms. An everyday illustration of the first law of thermodynamic is photosynthesis in which a plant uses sunlight, a form of light energy, to produce sugars that are assembled into glucose, which is a type of chemical energy. The second law of thermodynamics states that all energy transformations are inefficient because every reaction loses some energy to the surroundings as heat. An everyday illustration of the second law of thermodynamics is if you ate an energy …show more content…
Name at least four ways that the cell uses ATP.
Four ways that the cell uses ATP are transporting substances across cell membranes, moving chromosomes during cell division, synthesizing the large molecules that make up cells, and moving muscles.
5. What is phosphorylation? What is its importance to the living cell?
Phosphorylation is the addition of a phosphate to a molecule. The importance of phosphorylation to the living cell is phosphorylating allows a cell to use ATP as an energy source.
6. What is an enzyme? What is its importance to the living cell?
An enzyme is a protein that speeds up a chemical reaction without being consumed. The importance of enzymes to a living cell are they help to make up many of the cell's organelles, these enzymes speed reactions by lowering the activation energy; thereby, allowing reactions such as copying DNA, building proteins, digesting foods, recycling a cells worn-out parts, and catalyzing oxidation-reduction reactions to proceed.
7. What is the difference between positive and negative …show more content…
Active transport is when a cell uses a transport protein to move a substance against its concentration gradient from where it is less concentrated to where it is more concentrated. Endocytosis is a form of active transport, and it allows a cell to engulf fluids and large molecules and bring them into the cell.
9. Compare and contrast exocytosis and endocytosis and types of each.
Both exocytosis and endocytosis use vesicles to transport substances, and they both require energy. Endocytosis is a form of transport that allows a cell to engulf fluids and large molecules and bring them into the cell, and it has two main forms: pinocytosis and phagocytosis. Pinocytosis brings in fluids, while phagocytosis brings in solid particles. Exocytosis is a form of transport in which vesicles containing cell secretions fuse with the cell membrane.
10. Give an example of how natural selection maintains some genetic
The first law of thermodynamics states that energy cannot be created or destroyed; however, it can be converted to other forms. An everyday illustration of the first law of thermodynamic is photosynthesis in which a plant uses sunlight, a form of light energy, to produce sugars that are assembled into glucose, which is a type of chemical energy. The second law of thermodynamics states that all energy transformations are inefficient because every reaction loses some energy to the surroundings as heat. An everyday illustration of the second law of thermodynamics is if you ate an energy …show more content…
Name at least four ways that the cell uses ATP.
Four ways that the cell uses ATP are transporting substances across cell membranes, moving chromosomes during cell division, synthesizing the large molecules that make up cells, and moving muscles.
5. What is phosphorylation? What is its importance to the living cell?
Phosphorylation is the addition of a phosphate to a molecule. The importance of phosphorylation to the living cell is phosphorylating allows a cell to use ATP as an energy source.
6. What is an enzyme? What is its importance to the living cell?
An enzyme is a protein that speeds up a chemical reaction without being consumed. The importance of enzymes to a living cell are they help to make up many of the cell's organelles, these enzymes speed reactions by lowering the activation energy; thereby, allowing reactions such as copying DNA, building proteins, digesting foods, recycling a cells worn-out parts, and catalyzing oxidation-reduction reactions to proceed.
7. What is the difference between positive and negative …show more content…
Active transport is when a cell uses a transport protein to move a substance against its concentration gradient from where it is less concentrated to where it is more concentrated. Endocytosis is a form of active transport, and it allows a cell to engulf fluids and large molecules and bring them into the cell.
9. Compare and contrast exocytosis and endocytosis and types of each.
Both exocytosis and endocytosis use vesicles to transport substances, and they both require energy. Endocytosis is a form of transport that allows a cell to engulf fluids and large molecules and bring them into the cell, and it has two main forms: pinocytosis and phagocytosis. Pinocytosis brings in fluids, while phagocytosis brings in solid particles. Exocytosis is a form of transport in which vesicles containing cell secretions fuse with the cell membrane.
10. Give an example of how natural selection maintains some genetic