<h2>cAMP and glucose mobilization</h2>
Explanation:
It would maintain high cAMP level and elevate glucose mobilization
- Phosphodiesterase is an effector enzyme which degrades secondary messenger cAMP(cyclic adenosine monophosphate)
- Here in this case an inhibitor is inhibiting the phosphodiesterase therefore cAMP level will increase
- As cAMP level rise it activates a protein called protein kinase A which phosphorylates phosphorylase kinase and activates it
- Phosphorylase kinase becomes active that phosphorylates glycogen phosphorylase and makes it active,glycogen phosphorylase catalyse breakdown of glycogen(in liver and muscle cells)
- In liver cells breakdown of glycogen occurs and glucose 1 phosphate gets converted into glucose and supplied to whole body through blood
Calcium levels in the body are maintained by hormones. If the blood calcium level rises above a set point, calcitonin is secreted by the thyroid gland and sets into motion responses to lower the blood calcium back to the set point. If the blood calcium level falls below a set point, the parathyroid gland secretes parathyroid hormone that sets into motion responses to raise the blood calcium. These homeostatic responses are examples of:
a. positive feedback
b. effectors
c. sensors
d. negative feedback
Answer:
d. negative feedback
Explanation:
Negative feedback responses are the ones that counteract the change. Any alterations in the internal body conditions such as blood calcium levels are sensed by receptors. The information is sent to the brain which in turn commands the effectors such as endocrine glands to secrete the required hormones to restore the normal conditions. Here, changes in the calcium levels are counteracted by the secretion of calcitonin and parathyroid hormones and the calcium is maintained within a narrow range. This represents negative feedback.
<span>The ritual of strolling leisurely around a walkway is called a promenade. Did you know that the event known as high school prom originated from this custom of promenading? The word prom is derived from the word promenade. During a prom, people dress up and display themselves socially, just as people do when they go to a plaza in the Spanish-speaking world.
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Answer:
The correct order starting from next to the object is
1. coverslip
2. objective lens
3. revolving nosepiece
4. body tube
5. body tube
Explanation:
The correct order starting from next to the object is
1. coverslip
2. objective lens
3. revolving nosepiece
4. body tube
5. body tube
A cover slip is a glass that is used to cover the specimen before observing through a microscope. Thus it is the nearest to the object.
Objective lens is the one which is near to the object hence it comes after the coverslip.
Revolving nose piece is a setup to which the objective lenses are attached thus it will come after the objective lens
Body tube is the hollow and tubular structure that forms the upper part of microscope.
While ocular lens also known as eyepiece are the farthest from the object , hence they come at the last.
