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1. All membrane receptors for hormones use second messengers, neurotransmitters use second messengers in some situations and direct-effect ion channels in others. Briefly explain the reasons for this difference.
2. Compare the regulation of a system by the autonomic nervous system with its regulation by the endocrine system.
There are two different cell lines but molecular biologist do not know that these cell lines have Gs or Gi proteins, associated with their G-protein coupled receptors. Molecular biologist wants to know about this
Describe and explain the consequences ofinhibiting the production of ATP on the maintenance of appropriateintracellular concentrations of sodium and potassium.
High concentrations of caffeine causes an isolated muscle to contract in the absence of any activity in the motor nerve. This contraction is not blocked by nicotinic blocking agents like curare. Where do you think caffeine acts?
A particular Drosophila female that is wild-type in appearance is known to be heterozygous for the three recessive mutations black body (b), curved wings (c) and purple eyes (p).
Based on the above information, propose a normal function for cAMP in intestinal epithelial cells and suggest a possible treatment for cholera.
1 why are enzymes critical to the function of cells? that is why not simply let chemical reaction occur without
Suppose that you are given a mixture of proteins that you examine by standard 2-D electrophoresis, with the following results for isoelectric points and apparent molecular weights.
After WWII, DDT was widely used to kill mosquitoes. Spraying DDT was effective for some years, but despite continuous spraying at ever increasing concentrations of DDT,
Recognize a group or professional in your area working in the field of biological science. Interview an individual from the organization who works straight in the biological sciences field to develop an appreciation for the type of work, latest resea..
Starting with 10mL of original culture, you created three serial dilutions as follows. You removed 0.1 ml from the original culture diluted it into 0.9 ml of broth to make dilution "1".
the fundamental-cause theory suggests that those with greater access to resources will experience better health because
General Biology Compare and contrast a "character" versus a "variant (or trait)". A pea plant with a Tt genotype is crossed to a plant with a tt genotype. What percentage of the offspring do you expect will be dwarf?
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