Explanation:

Homeostasis way "staying still" in Greek, and is a building of the human body that explains when functions and also processes enable the conditions of the body to stay stable. This walk not median that the human body ceases any type of function. That simply method that the existing functions that the body room able to save the body at a stable condition.

You are watching: Which of the following is not an example of homeostasis

For example, blood glucose in the human body is under homeostatic regulation by the hormones insulin and also glucagon. Both hormones are always in circulation, an interpretation that glucose is both gift released into the blood and begin taken native the blood for storage. The an outcome is a steady amount the glucose due to the fact that both processes occur together. As soon as a meal causes blood glucose to rise, insulin levels increase and glucagon level decrease to accommodate the change, yet both hormones space still present. This creates a dynamic equilibrium in which glucose is both retained and released, enabling a stable amount to be in circulation.


Report an Error

Example question #1 : Understanding biological Equilibrium


Which of complying with correctly describes how a catalyst influence a chemistry reaction?


Possible Answers:

Slows under a chemical reaction through lowering the activation energy


Speeds up a chemical reaction by lowering the activation energy


Has no result on the speed of the chemistry reaction, however increases the lot of product produced


Slows under a chemical reaction by raising the activation energy


Speeds increase a chemical reaction by boosting the activation energy


Correct answer:

Speeds up a chemistry reaction through lowering the activation energy


Explanation:

A catalyst is a substance that increases the rate of a reaction by lowering the activation energy needed because that the given chemical reaction to occur. Activation energy is the input of energy required for a reaction come occur. This energy is offered to break the bonds of the reactant, enabling the reaction come proceed. If a catalyst lowers the quantity of power needed because that a reaction come occur, the reaction can take place at a much faster rate due to the fact that it reaches that lower power level an ext quickly 보다 it would have actually the original higher energy level.


Report an Error

Example inquiry #1 : Feedback and Homeostasis


Which is not an instance of homeostasis?


Possible Answers:

The kidneys work to remove excess salt, urea, and water indigenous the bloodstream


Warm blooded (endothermic) pets sweat to relax heat, or shiver to rise metabolic activity and rise body temperature


Insulin is exit by the pancreas to encourage cells to retain your glucose instead of release it right into the blood stream


Mitochondria create ATP with proton pumps in bespeak to power the moving processes


Oxygen contents in the bloodstream is low, therefore the heart pumps faster and speed/depth of breathing increases


Correct answer:

Mitochondria create ATP v proton pumps in stimulate to strength the to move processes


Explanation:

The situation describing ATP production is the just one in which there is no difficulty in need of correction. Homeostasis needs maintenance the a balance. If ATP production is vital process, the simple duty of the ATP synthase proton pump is not straight related to biological stability in homeostasis.

All other answers describe instances in which the human body corrects a problem or situation and also restores balance to internal mechanisms. This is the nature the homeostasis—there is a disruption come the balance, and also the body adjusts in bespeak to keep the procedures running smoothly.


Report an Error

Example concern #1 : Feedback and also Homeostasis


Which that the complying with is an example of an unfavorable feedback inhibition?


Possible Answers:

A cabinet senses too much sugar in the blood and also turns on warrior of the insulin gene


A cabinet senses the the concentration of a protein is too high and also represses warrior of the gene encoding the protein


A cells senses too small sugar in the blood and also turns on warrior of the glucagon gene


A cabinet senses that there is too tiny of a protein in ~ a cell and also activates warrior of the gene encoding the protein


Correct answer:

A cabinet senses that the concentration of a protein is too high and represses warrior of the gene encoding the protein


Explanation:

Negative feedback inhibition occurs once "too much" that a substance outcomes in lessened production of the very same or a various substance. If having actually too lot of a protein in a cell outcomes in reduced transcription the the gene encoding the protein, climate the protein to be regulated by an adverse feedback. One more example (not noted here) would be the visibility of too much sugar in the blood and repression that the glucagon gene to minimize production of street by other tissues.

While insulin and glucagon plot in a an adverse feedback system, the concern specifically asks for negative feedback inhibition. Transforming on gene for insulin or glucagon would certainly play a function in negative feedback, however would qualify together stimulation quite than inhibition.


Report an Error

Example question #1 : Feedback and also Homeostasis


Which the the following is an example of an unfavorable feedback?


Possible Answers:

Lactation via prolactin production


Thermoregulation via sweating


Blood coagulation via fibrin action


Childbirth contractions via oxytocin release


Ovulation via the luteinizing hormone (LH) surge


Correct answer:

Thermoregulation via sweating


Explanation:

Homeostasis is the tendency of a system to maintain internal equilibrium. As such, negative feedback is a very important ingredient of homeostasis because an adverse feedback loops are frequently self-regulating, and are usually very stable. An unfavorable feedback processes result in reduction to adjust from equilibrium through inhibiting procedures that deviate indigenous equilibrium.

When body temperature rises, an unfavorable feedback with thermoregulation helps to cool the body ago to equilibrium temperature. This is completed through peripheral vasodilation, boosted breathing rate, and sweating.

In contrast, hopeful feedback is when a process reinforces and also amplifies deviations indigenous equilibrium. The luteinizing hormone (LH) surge during ovulation and uterine contractions throughout child birth are rare examples of positive feedback in biology.


Report an Error

Example concern #1 : Feedback and Homeostasis


When the body demands to conserve water, antidiuretic hormone is secreted and the kidneys produce concentrated urine. This is an example of __________.


Possible Answers:

catabolism


vasoconstriction


osmosis


negative feedback


reabsorption


Correct answer:

negative feedback


Explanation:

Negative feedback reverses or shuts off a stimulus. When the human body is suffering dehydration, antidiuretic hormone is secreted, which functions to decrease pee production, allowing the human body to maintain fluids. As soon as the body"s fluids space replaced, an unfavorable feedback turns off antidiuretic hormone secretion. Catabolism is the malfunction of complex substances into easier ones to relax energy. Osmosis is the motion of water from an area that high concentration into an area of reduced concentration. Vasoconstriction is a reduction in the diameter of a blood vessel. Antidiuretic hormone is also called vasopressin since it constricts blood vessels, i m sorry decreases urine output. Reabsorption is the taking ago into the blood building material that had actually previously to be filtered the end from it. This occurs in the kidneys.


Report one Error

Example question #1 : Understanding negative Feedback


Which of the following processes is an instance of an adverse feedback?


Possible Answers:

Regulation of body temperature


Childbirth


Blood clotting


Breastfeeding


Fever


Correct answer:

Regulation of body temperature


Explanation:

Negative feedback is the procedure of reestablishing a physiological set point. This is a corrective process. For example, during exercise, the human body temperature increases. An adverse feedback loops assist bring the human body temperature ago down in the direction of the set point of 

*
 by stimulating perspiration, dilating blood ship to the extremities, etc. Positive feedback functions in a way that exacerbates the effects of a stimulus. For example, throughout blood clotting, platelets bunch together in the area bordering a wound. This causes much more platelets come "get stuck" ~ above the currently clump of platelets, causing more clotting.


Report one Error

Example concern #8 : Feedback and Homeostasis


Which the the adhering to is an instance of negative feedback inhibition?


Possible Answers:

A cell senses that there is too small of a protein in ~ a cell and also activates transcription of the gene encoding the protein


A cell senses the the concentration of a protein is too high and also represses warrior of the gene encoding the protein


A cells senses too little sugar in the blood and turns on transcription of the glucagon gene


A cabinet senses too much sugar in the blood and also turns on transcription of the insulin gene


Correct answer:

A cabinet senses that the concentration that a protein is too high and represses warrior of the gene encoding the protein


Explanation:

Negative feedback inhibition occurs when "too much" of a substance results in diminished production that the very same or a various substance. If having actually too lot of a protein in a cell results in lessened transcription the the gene encoding the protein, climate the protein to be regulated by an adverse feedback. One more example (not provided here) would be the visibility of too lot sugar in the blood and repression that the glucagon gene to minimize production of street by other tissues.

While insulin and also glucagon action in a negative feedback system, the inquiry specifically asks for an unfavorable feedback inhibition. Turning on genes for insulin or glucagon would certainly play a role in an unfavorable feedback, yet would qualify together stimulation quite than inhibition.


Report an Error

Example question #1 : expertise Positive Feedback


The increased release the oxytocin throughout childbirth is an example of __________.


Possible Answers:

negative feedback


feedback inhibition


equilibrium


positive feedback


Correct answer:

positive feedback


Explanation:

When production of a product in a device then causes much more of the very same product to be developed it is known as optimistic feedback. In cotrast, as soon as the manufacturing of product in a system inhibits added product manufacturing it is known as an unfavorable feedback. Optimistic feedback leads to an exponential boost in the product, without any mediation. An unfavorable feedback holds the product level at an equilibrium amount that is tightly regulated.

As oxytocin is released from the brain during childbirth uterine stress is increased, which more increases the lot of oxytocin created. As oxytocin is released, the stimulates the production of even much more oxytocin, constant with positive feedback.

Oxytocin is just one of only very couple of positive feedback instances in biological systems. Almost all biological compounds are regulated via an unfavorable feedback.


Report one Error

Example concern #2 : Feedback and Homeostasis


Which the the following is an instance of optimistic feedback?


Possible Answers:

Oxytocin causes uterine contractions, i m sorry cause more release the oxytocin


Body temperature rises and causes sweat glands to open up and reduce body temperature


Hunger reasons metabolism to slow-moving down, i beg your pardon reduces hunger


Blood street rises, which causes the body to release insulin, which lowers blood sugar


Blood press rises, which causes vasodilation to reduced blood pressure


Correct answer:

Oxytocin reasons uterine contractions, i beg your pardon cause more release the oxytocin


Explanation:

During optimistic feedback the manufacturing of an impact stimulates amplification that the exact same effect. In contrast, during an unfavorable feedback the manufacturing of an impact stimulates the reduction of the very same effect. The an outcome of optimistic feedback is an exponential boost in the strongness of the effect, when the effect of an unfavorable feedback is a form of equilibrium roughly a constant level.

Oxytocin release during childbirth is among only a couple of positive feedback mechanisms in the body. Nearly all various other processes room modulated by some form of negative feedback.


Report an Error
← vault 1 2 next →
*

watch Tutors
Erin Certified tutor
University of south Florida-Main Campus, Bachelors, Biology, General. Massachusetts institute of Technology, PHD, organic ...

See more: What Is The Name Of The Projections On The Inner Surface Of The Small Intestine?


*

see Tutors
Rachael Certified guardian
Lafayette College, Bachelor the Science, Biology, General.
*

watch Tutors
Jordan Certified guardian
University that Alabama at Birmingham, understand of Science, Biology, General. University of Alabama in ~ Birmingham, Bachelor that Sc...

All High institution Biology sources


10 Diagnostic tests 247 practice Tests question of the work Flashcards learn by principle
Popular Subjects
Spanish Tutors in Philadelphia, act Tutors in brand-new York City, Algebra Tutors in Boston, French Tutors in Denver, GRE Tutors in Los Angeles, computer system Science Tutors in Houston, Physics Tutors in Philadelphia, plot Tutors in Atlanta, act Tutors in Washington DC, GRE Tutors in Denver
Popular process & Classes
ISEE courses & classes in Denver, SSAT courses & classes in Washington DC, SAT process & classes in san Diego, GRE process & great in Miami, SAT process & great in Denver, GMAT courses & class in Seattle, Spanish process & class in Philadelphia, SAT courses & class in Chicago, GRE courses & great in Phoenix, SSAT courses & classes in mountain Diego
Popular test Prep
SSAT test Prep in Atlanta, sat Test prep in Boston, SSAT test Prep in Dallas fort Worth, LSAT test Prep in Denver, satellite Test prepare in brand-new York City, ISEE test Prep in Boston, GMAT check Prep in Seattle, GRE test Prep in Phoenix, satellite Test prep in Houston, MCAT test Prep in Los Angeles
Report an problem with this concern

If you"ve discovered an worry with this question, you re welcome let us know. With the assist of the community we can proceed to enhance our educational resources.


Do not fill in this field
* your Name:
* concern Description:
DMCA complaint

your Infringement notice may it is in forwarded to the party the made the content easily accessible or to third parties such together ChillingEffects.org.

you re welcome follow these steps to paper a notice:

girlfriend must encompass the following:

Send your complaint to ours designated agent at:

Charles Cohn Varsity Tutors gmbh 101 S. Hanley Rd, Suite 300 St. Louis, MO 63105