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Stem Cells
Stem cells are a biological cell that can turn into a specialized cell, and then divide to create more.
678 Questions
What is some current research on the benefits of stem cells?
Scientists have been doing tests with stem cells and they have found that with the cells it can be a cure on diabetes. They have tested it on rats and it has worked.
It can also help your lungs.
What can stem cells help to cure?
Nobody knows for certain, but it is possible that it might be used to treat or cure a variety of diseases where specific types of cells are missing (either because they were never there, they died out, an autoimmune disorder killed them off, etc.). A few of these possibilities are:
- Parkinson's - caused by the loss of dopamine producing cells in the substantia nigra in the brain
- Diabetes (type I) - caused by the death of insulin producing cells in the Islets of Langerhans in the pancreas
A disease resulting from abnormal proliferation of stem cells in bone marrow?
This cancer type is called myeloma.
Pluripotent cell can differentiate into almost any type of cell.
Where is a stem cell of an embryo are the instructions located for how to build the heart?
deoxyribonucleic acid
Why are embryonic stems cells especially useful in medical research?
If people research embryonic stem cells, we can further put them into use into medicine. Using the somatic cell nuclear transfer method, scientists can grow human organs and tissues and then implant them into a human being. Further research can shed light on new ways to circumvent the body rejecting the given tissue.
What cells are present in plant stems?
The function of the cell membrane is to allow waste material to exit the cell. The cell membrane forms a barrier between the inside of the cell and the outside, so that the chemical environments on both sides can be different. It regulates the movement of materials into and out of the cell.
Cell WallThe function of the cell wall is to provide structural support and to control the amount of water entering the cell. The cell wall is a wall that allows the circulation and distribution of water, minerals, and other small nutrient molecules into and out of the cell. It gives rigid support from which stable structures like leaves and stems can be produced. It can also sense the presence of pathogenic microbes and control the development of tissues within the cell because of its storage site of regulatory molecules Golgi BodyThe Golgi body stores, packages, and distributes the lipids and proteins made in the endoplasmic reticulum. It puts proteins into packages, called vesicles. Rough Endoplasmic ReticulumThe function of the rough endoplasmic reticulum is to synthesize and exports proteins and glycoproteins. LysosomesThe purpose of lysosomes are to digest things. They could be used to digest food or break down the cell when it dies. Lysosomes are The cell's garbage disposal system. They clean up while patrolling the cell. This organelle breaks down large molecules into many smaller molecules by using their special proteins. The smaller molecules can be used as building blocks for other large ones. Lysosomes also kill and digest invading organisms. CytoplasmThe function of the cytoplasm is to distribute oxygen and food (nutrients) to other parts of the cell and it supports all parts inside the cell. It has three main functions: storage, energy, and manufacturing. The cytoplasm contains nutrients that have been dissolved which help for the dissolving of waste products NucleolusThe nucleolus is where ribosomes are made. The nucleolus disappears during cell reproduction. This is because ribosomes are not needed when cells reproduce. VacuoleThe function of the vacuole is to store water, nutrients, and other substances that cannot be used right away. They tend to be larger in plant cells because plants are watered. When they are well watered, water collects in cell vacuoles producing rigidity in plants. Each plant cell has a large, single vacuole that stores compounds, helps in plant growth, and plays a significant structural role for the plant. RibosomesRibosomes are the protein builders or protein synthesizers of the cell.- #*
The amylosplast is an organelle in some plant cells that store starch.
Druse CrystalThe druse crystal, often found in plant vacuoles, is a granular type of crystal usually composed of calcium oxalate. The druse crystal is said to deter herbivory. Centrosome:The centrosome is an area in the cell where microtubules are produced. Microtubules carry out a variety of functions, ranging from transportation to structural support. During cell division, the centrosome divides, and both parts move to opposite sides of the cell. Raphide Crystal:The raphide crystal, usually composed of calcium oxalate, is a needle kind of crystal often found in plant vacuoles. It is thought to slow down herbivory. Golgi Vesicles:The Golgi vesicles carry the proteins and lipids to take them to other parts of the cell or to the outside of the cell.Hoped i helped
ADDITION-
The Stem-
It helps hold up the plant.But not only that,It can also carry the water and the minerals it got from the roots.The roots carry the water it absorbed from the ground,then the water goes up to the stem,then the water and minerals go to the leaves to make food for the plant.The process of the plant making food is called photosynthesis.
Why did doctors use embryonic stem cells?
Scientists use stem cells because they can generate healthy cells and replace disease ones. Plus they allow them to test and better understand disease and test new drugs for effectiveness.
Are adult stem cells totipotent cells?
What kind(s) of cells can develop from multipotent stem cells?
A. Only cells that are closely related to the original stem cell B. Only cells that are identical to the original stem cell C. Any cells of the human body or the placenta D. Any cells of the human body. but not cells of the placentaWhere have stem cells come from traditionally?
blastocysts (balls of unspecialised cells which become a baby)
What controls the way stem cells divide and differentiate?
Ultimately their genetics. However various genes get turned off at programmed times by methylation of the DNA while others get turned on at programmed times by demethylation of the DNA. The methylated/demethylated forms of the DNA are passed on to the stem cell's descendants so they "retain their programmed state" and thus their identity following differentiation. Some of this program control is influenced by the concentrations of various chemicals secreted by other cells in the vicinity of the stem cell or its descendants.
What part of a developing embryo are stem cells derived from?
Stem cells come from newly fertilized eggs.
What is a disadvantage of using a globe?
Hard to see 2 far away places at once.
What are the differences between embryo and adult stem cells?
Adult stem cells are harvested from newborn's cord blood or human bone marrow while embryo stem cells come from the inner cell mass of a human embryo. No fetus is killed to use the stem cells, but the embryo cannot function and must be destroyed without a inner cell mass.
Why we shouldn't use embryonic stem cells?
Many scientists and people say that embryonic stem cells have the potential to cure many diseases, such as cancer. On the contrary, many other people are discomforted by the idea of destroying human embyos for a scientific purpose. They argue that life begins at conception, and that no person has the right to kill any form of human life. Many people believe that only God gives life, and only God should take it.
To enable ES (embryonic stem) cells to grow outside of the embryo they have to be cultured in the presence of embryonic fibroblasts, which provide nutrients to keep
the ES cells in an undifferentiated state. In this state the cells can
grow indefinately. When these cells are removed from the fibroblasts (or
medium which has been conditioned by these cells) the ES cells
spontaneously differentiate into a range of cell types. In theory, ES
cells can form into any of the cells within the body. However, in practice
only a few pure cell types have been produced (e.g. neuronal and blood).
What is the adaptation of a stem cell?
Rhizomes are underground perennial stem eg Lily.
Tubers are swollen stems (terminal portions of underground rhizomes) found in potatoes. This is important for perennation (The ability of a plant to survive from year to year).
Corms are swollen underground stem base that has been modified into a mass of storage tissue.
Stolons are above ground stems often called runners. Important for vegetative reproduction; new plants are formed at the nodes eg Strawberries.
Stems can be adapted in succulents to store water.
Stems can also be parasitic and strangle other plants
What can stem cells do that other cells can not do?
Stem cells has the capability to regenerate and develop into any kind of tissue or organ, when supported with the external nutrients. So they are called as totipotent.
There are two kinds of stem cell
a)adult stem cells
b)embryonic stem cells.
There are various researches going on in this area .
How might stem cells be used to treat disease?
Stem cells are usually totipotent or pleuripotent cells. As such, they can undergo differentiation, according to the conditions provided, to give different types of cells. Basically, they have capability of producing specific tissues.
Scientists believe that stem cell therapy can very much effect the treatment of illnesses. Presently, bone marrow transplants, which are used to treat leukemia, are also a type of stem cell therapy.
Medical researchers are trying to make stem cell therapy able to cure diseases such as Parkinson's disease, cancer, spinal cord injuries, muscle damage, etc.
How do stem cells differentiate from other cells?
Stem cells are different from other cells in the body in several notable ways. They can divide and renew themselves many times, whereas other cells are more limited in their divisions. And when those stem cells divide, the new cells can become specialized if necessary. Stem cells have no assigned function in the body, but through the process of specialization, they can take on roles in any of the body's tissues. These type of cells can be derived from human embryos or from certain spots in the adult human body.
How can adult and embryonic stem cells cure diseases?
Nothing has been definitively cured yet, mainly due to the ban that a lot of governments (America's included until recently) had on using embryonic stem cells to do research. Now that the ban has been lifted, there are sure to be a LOT of cures heading our way. Scientists are hopeful that they will be able to cure diseases such as diabetes and Parkinson's, as well as help victims with spinal cord injuries. The future of stem cell research is going to be very exciting.
What are the three types of stem cells in adults?
The three types of stem cells in adults are hematopoietic stem cells (found in bone marrow and produce blood cells), mesenchymal stem cells (found in various tissues like bone marrow and fat, can differentiate into bone, cartilage, and fat cells), and neural stem cells (found in the brain and spinal cord, can differentiate into neurons and supporting cells).
How. An stem cells help the patient?
In stem cell transplants, stem cells replace cells damaged by chemotherapy or disease or serve as a way for the donor's immune system to fight some types of cancer and blood-related diseases, such as leukemia, lymphoma, neuroblastoma and multiple myeloma.
