Answer:
Explanation:
The main function of the plasma membrane is to protect the cell from its surroundings. Made of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules it also regulates the movement of substances in and out of cells. Plasma membranes must be very flexible in order to allow certain cells, such as red blood cells and white blood cells, to change shape as they pass through narrow capillaries. Membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors, which then trigger intracellular responses. Some viruses, such as Human Immunodeficiency Virus (HIV), can intercept these receptors to get into the cells, causing infections.
Answer:
Hormones can be proteins, lipids or cholesterol-based molecules. Neurotransmitters are protein. The main difference between hormones and neurotransmitters is that Hormones are produced in the endocrine glands and released into the bloodstream where they find their movement targets at a distance from their origin. In contrast, Neurotransmitters are released into the synaptic space by a terminal of an excited presynaptic nerve cell and transmit a nerve signal to the neighboring postsynaptic nerve cell.
Explanation:
Answer:
is also known to function in nerve development, fertility, and viability. When human and mouse genes whose protein products closely resemble apterous were used to generate ... [USA] 96: 2165–2170), the apterous mutant phenotype was rescued. ... patterns in the transgenic Drosophila were similar to normal apterous.
Explanation:
It is also known to function in nerve development, fertility, and viability. When human and mouse genes whose protein products closely resemble apterous were used to ... patterns in the transgenic Drosophila were similar to normal apterous. ... for normal wing patterning and growth whereas mutation in the gene (apterous ...is also known to function in nerve development, fertility, and viability. When human and mouse genes whose protein products closely resemble apterous were used to generate ... [USA] 96: 2165–2170), the apterous mutant phenotype was rescued. ... patterns in the transgenic Drosophila were similar to normal apterous.
