Introduction
To start of the topic what are cells? Cells provide structure and function for all living things, from microorganisms to humans. Scientists consider them the smallest form of life. Cells house the biological machinery that makes the proteins, chemicals, and signals responsible for everything that happens inside our bodies.
Task
is to learn about current research involving different
types of cells.
Process
1. What do researchers think is one cause of memory impairment related to
growing older? What does new research show that may be able to help
reverse this process?One strategy is to inject cells to do the cellular repair but the new strategy is if a person had a spinal cord injury, we could take some of their own fat, treat it, then put it back in. You wouldn't even have to worry about rejection
2. How might fat cells be able to help people with spinal cord injuries?it doesn’t cause reactions
3. How are frog eggs being used in research involving human cells?Gurdon's team injected immature frog eggs with nuclei from adult mice or human white blood cells.
4. What are Schwann cells? How are they affected in multiple sclerosis
patients?Schwann cell myelin remains normal
5. What role do cells play in preventing the stomach from digesting itself?it produces mucus
Evaluation
The trillions of cells that make up a human are organized into about 200 major types. All of a person’s cells contain the same set of genes . However, each cell type “switches on” a different pattern of genes, and this determines which proteins the cell produces. The strange set of proteins in different cell types lets them perform special tasks. For example, red blood cells carry oxygen throughout the body. White blood cells kill germ invaders. Intestinal cells release molecules that help digest food. Nerve cells send chemical and electrical messages that produce thoughts and movement. And heart cells contract in unison to pump blood. Many types of cells can move. Single-celled organisms move to find food. And even cells inside multicellular organisms may need to get around. For example, immune system cells must move toward invaders.Cell biologists rely on tools to peer into the body and examine cells. Imaging techniques magnify organelles and track cells as they divide, grow, interact, and carry other vital tasks. Biochemical or genetic tests allow researchers to study how cells respond to the environment stressors, such as rising temperatures or toxins. These tests can also label specific proteins using fluorescent tags and other chemicals that allow scientists to visualize proteins at work inside cells. Sophisticated computational tools then integrate and analyze all the data.
Conclusion
Learning how cells work can help cell biologists improve on their studies of how the cell works for example how they can multiply or how they help us stay healthy these are things cell biologists discovered and are still trying to discover today!