<h2>Neural crest </h2>
Explanation:
The neural crest likely forms: neurons and glia of the peripheral nervous system
- The neural crest are bilaterally paired strips of cells arising in the ectoderm at the margins of the neural tube
- In the body region, neural crest cells also contribute the peripheral nervous system (both neurons and glia) consisting of sensory ganglia (dorsal root ganglia), sympathetic and parasympathetic ganglia and neural plexuses within specific tissues/organs
- The nervous system is made up of specialized cells which includes nerve cells (or neurons) and glial cells (or glia)
- Neurons are the basic functional units of the nervous system, and they generate electrical signals called action potentials, which allow them to quickly transmit information over long distances
- Glia are also essential to nervous system function, but they work mostly by supporting the neurons
Umm what do you want me to do i dont undrestand
Answer:
A.
Explanation:
Lipids are fats. Fats supply energy, provide insulation, and make up cell membranes.
Lipids do not transfer hereditary information.
Answer:
The equation of the photosynthesis becomes reverse in the cellular respiration. In both process the reactants and products are altered.
Photosynthesis is the light harvesting process. Here the plants use water, carbon dioxide, light as raw material to produce glucose, energy and oxygen. This process occurs in the chloroplast of the leaves. In this reaction the products are oxygen and glucose.
In cellular respiration, the byproduct of photosynthesis i.e. glucose is oxidised to release energy and carbon dioxide, along with the ATP molecules. This reaction is the reverse reaction of the photosynthesis.
In cellular respiration the product of the photosynthesis becomes becomes reactant.
The cellular respiration occurs in the cytoplasm of the cell and involves many steps to release energy. The various cellular respirations are glycolysis, kreb's cycle, electron transport chains, etc.
Answer:
This is a pretty complex question with multiple parts to it. I will try to answer them and give a short explanation.
1. Steroid hormones are synthesized in the same cells where they function: False. Steroid hormones are produced in the adrenal glands, in the different portions of the gland. Each of them will go to different cells and produce their effects by directly binding to receptors on the cell´s nucleus, they do not stay to interact with the membrane of the cell.
2. Estrogen is a gonadocorticoid: True. Estrogen is primarily produced as a gonadocorticoid by the adrenal glands. They are part of the group of hormones that stimulate maturation of female body parts and maintenance of pregnancy when this happens. It also helps in the ovulation process.
3. Glucocorticoid receptors are membrane bound: False. Like all steroids, glucocorticoids, cross the plasma membrane and act directly on DNA by binding to receptors that cross into the nucleus itself.
4. Glucocorticoid receptors have a nuclear localization signal that is hidden until a glucocorticoid is bound: True. These receptors, known as GR´s (Glucocorticoid receptors) tend to be present in the cytoplasm and activate once a glucocorticoid crosses the membrane. These receptors will increase in number and carry the hormone towards the nucleus, where they will affect the DNA directly.
5. Two glucocorticoid receptors function as a homodimer: True. This is found the research done on how GR´s work to produce their effect. There has been research that shows they can work as heterodimers, but essentially, they work as homodimers.
6. Glucocorticoid receptors bind to GRE elements which are present on newly synthesized mRNAs. False. Essentially, and most simply, because glucocorticoids affect DNA, and the receptors will bind with DNA, not RNA.
