The surface area of a sphere is given by the expression, . The volume of the sphere is given by the expression, .
Dividing the surface area expression by the volume expression, we get, .
So the ratio is inversely dependent on the value of r.
Given for the sphere, the surface area = 588 m², and the volume = 1372 m³.
Dividing the surface are by volume, we get, as the answer.
Answer: c. In special sense organs.
Explanation:
Bipolar neurons are those neurons that have two cytoplasmic extensions attached particularly to the cell body. These neurons are found in the sense organs like retina of eye, nasal cavity roof, also in the inner ear. Thus helps in receiving the stimuli of olfaction, vision, and hearing.
Answer:
Yes
Explanation:
Yes, after an individual undergoes gastric bypass surgery many different metabolic hormones become affected by the surgery. Such hormones include Gherlin, Leptin, Gastrin, and Insulin, all of which can affect the individual's hunger, appetite, and satiety cues. This is mainly because the surgery greatly shrinks the amount of food that an individual can eat at any given time. Since it basically shrinks the stomach by creating a small pouch where food enters and goes straight into the intestinal track it gives the individual the feeling of being full with much less food.
Explanation:
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Answer:
The intracellular molecule produced by the receptor ligand complex is called Second messenger.
Explanation:
Receptors are membrane bound proteins which bind to the ligands which are also called first messengers and cause cellular changes. These intracellular changes are mediated by second messengers such as proliferation, differentiation, migration, apoptosis, transcription, contractions etc. They are specific for specific first messengers such as homones and growth factors. They relay the signals between the ligands to their target molecules in the cytosol or nucleus. Most common second messengers are cAMP, cGMP, DAG, IP3.
Signal amplification by second messenger can be explained by the example of IP3 which cayses the release of Calcium ions from the intracellular stores and cause contractions.