Homeostasis MCQs

Homeostasis multiple-choice questions (MCQs) here. They cover topics such as feedback mechanisms, regulatory systems (such as the nervous and endocrine systems), and the role of various organs and tissues in maintaining equilibrium.

Answering these MCQs will not only help you prepare for exams but also deepen your understanding of the intricate mechanisms involved in physiological regulation.

Dive into the MCQs below and enhance your understanding of this fundamental concept in biology!

MCQ on Homeostasis

More than 100 years ago, the French physiologist _ noted that two different environments are important to animals

Claude Bernard
Charles darwin
Louis pasteur
None of these

Correct Answer

Claude Bernard

More than 100 years ago, the _ physiologist Claude Bernard noted that two different environments are important to animals

Dutch
irish
italian
French

Correct Answer

French

_ includes the Sun and the atmosphere that surrounds the animal

external environment
Internal environment
Both of these
None of these

Correct Answer

external environment

Homeostasis is the biological process through which living organisms maintain internal stability and balance in response to changes in the external environment.

It involves the regulation of various physiological variables such as body temperature, pH levels, blood pressure, and glucose concentration within narrow ranges, ensuring optimal conditions for cellular function and overall health.

_ experiences fairly large changes, such as temperature changes as the Sun rises and sets

external environment
Internal environment
Both of these
None of these

Correct Answer

external environment

_ includes the fluids that surround the cells in an animal’s tissues

external environment
Internal environment
Both of these
None of these

Correct Answer

Internal environment

_ is mainly affected by the diet of the animal and the amount of water that the animal drinks

external environment
Internal environment
Both of these
None of these

Correct Answer

Internal environment

In _ feedback, a change triggers a response that reverses the change

Positive
neutral
negative
None of these

Correct Answer

negative

the thermostat measures the _ of the room

Light intensity
Pressure
Air density
temperature

Correct Answer

temperature

The _ measures changes in the variable, such as blood pressure, body temperature, or heart rate, and sends information to the control center

receptor
Control centre
effector
None of these

Correct Answer

receptor

The _ can be a neuron or gland so long as it processes the information, initiates a response to keep the variable within its normal range

receptor
Control centre
effector
None of these

Correct Answer

Control center

__ carries out the body’s response

receptor
Control centre
effector
None of these

Correct Answer

effector

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