Homeostasis MCQs with Answers

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Welcome to the Homeostasis MCQs with Answers. In this post, we have shared Homeostasis Online Test for different competitive exams. Find practice Homeostasis Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Homeostasis.

Homeostasis Online Quiz

By presenting 3 options to choose from, Homeostasis Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Homeostasis Questions and Answers and click over the correct answer.

Test Name: Homeostasis MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Homeostasis

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1 / 40

How does the body regulate salt levels in response to low sodium concentration?

Increased aldosterone release to retain sodium

Release of antidiuretic hormone (ADH)

Decreased renal reabsorption of sodium

2 / 40

Which hormone is responsible for regulating water balance by increasing water reabsorption in the kidneys?

Adrenaline

Antidiuretic hormone (ADH)

Melatonin

3 / 40

What is the role of parathyroid hormone (PTH) in calcium homeostasis?

Increasing calcium reabsorption from bones

Decreasing calcium reabsorption from the intestines

Stimulating insulin release

4 / 40

What is the role of erythropoietin in maintaining homeostasis?

Facilitating calcium absorption

Controlling blood sugar levels

Stimulating red blood cell production in the bone marrow

5 / 40

What is the primary purpose of homeostasis in the body?

Initiating immune responses

Producing energy

Maintaining internal stability and balance

6 / 40

What is the primary function of the integumentary system in homeostasis?

Producing red blood cells

Regulating body temperature through sweat production

Synthesizing hormones

7 / 40

Which structure in the kidney filters blood to form urine and maintain electrolyte balance?

Bladder

Nephron

Ureter

8 / 40

Which organ is responsible for regulating blood glucose levels?

Liver

Pancreas

Kidneys

9 / 40

Which component of the immune system plays a role in homeostasis by recognizing and attacking pathogens?

Platelets

Red blood cells

White blood cells

10 / 40

What is the primary function of the lymphatic system in homeostasis?

Draining excess fluid and fighting infections

Regulating body temperature

Producing hormones

11 / 40

Which part of the brain is responsible for coordinating voluntary muscle movements and maintaining balance?

Medulla oblongata

Cerebellum

Hypothalamus

12 / 40

What is the term for the process of maintaining a constant internal environment despite external changes?

Metabolism

Osmosis

Homeostasis

13 / 40

How does the body maintain fluid balance in response to dehydration?

Decreased production of aldosterone

Increased urinary excretion

Increased production of antidiuretic hormone (ADH)

14 / 40

What is the role of glucagon in glucose homeostasis?

Promoting glycogen synthesis

Inhibiting insulin production

Stimulating the release of glucose from the liver

15 / 40

How does the body regulate blood pH levels?

Through the bicarbonate buffer system

By producing excess glucose

By increasing blood volume

16 / 40

Which hormone is released in response to stress, increasing blood sugar levels?

Melatonin

Insulin

Cortisol

17 / 40

What is the primary function of the thyroid gland in homeostasis?

Stimulating bone growth

Regulating metabolism and energy production

Controlling blood pressure

18 / 40

What is the function of melatonin in the regulation of circadian rhythms?

Controlling blood pressure

Regulating sleep-wake cycles

Stimulating appetite

19 / 40

What is the primary role of insulin in glucose homeostasis?

Promoting the breakdown of glycogen

Facilitating the uptake of glucose by cells

Stimulating appetite

20 / 40

How does the body respond to an increase in blood sugar levels?

Release of insulin to facilitate glucose uptake by cells

Decreased insulin production

Release of glucagon to increase blood sugar

21 / 40

What is the primary function of the endocrine system in homeostasis?

Filtering blood

Producing hormones that regulate various body functions

Facilitating muscle contractions

22 / 40

How does the body regulate blood calcium levels?

By increasing blood volume

By controlling heart rate

Through parathyroid hormone (PTH) and calcitonin

23 / 40

What is the term for the process of breaking down stored glycogen into glucose?

Glycolysis

Glycogenolysis

Gluconeogenesis

24 / 40

Which hormone is responsible for stimulating the uterine contractions during childbirth?

Estrogen

Progesterone

Oxytocin

25 / 40

How does the body regulate body temperature in response to cold environments?

Sweating and vasodilation

Shivering and vasoconstriction

Increased heart rate

26 / 40

What is the primary function of aldosterone in the body's homeostasis?

Controlling blood sugar levels

Stimulating bone growth

Regulating sodium and potassium levels by acting on the kidneys

27 / 40

Which system plays a crucial role in maintaining acid-base balance in the body?

Renal system (kidneys)

Cardiovascular system

Respiratory system

28 / 40

How do the kidneys contribute to electrolyte balance?

By regulating blood pressure

By synthesizing electrolytes

By reabsorbing or excreting ions in urine

29 / 40

How does the body regulate blood pressure through the baroreceptor reflex?

Decreased heart rate and vasodilation

Increased heart rate and vasoconstriction

Release of aldosterone

30 / 40

What is the purpose of negative feedback in homeostatic regulation?

To counteract and reverse changes from the normal state

To initiate immune responses

To amplify changes and create a new equilibrium

31 / 40

What is the term for the process of water regulation in the body?

Thermoregulation

Glycogenolysis

Osmoregulation

32 / 40

How does the body respond to a rise in body temperature?

Shivering and vasoconstriction

Increased respiratory rate

Sweating and vasodilation

33 / 40

How does the body respond to low oxygen levels in tissues?

Release of insulin

Activation of the sympathetic nervous system

Increased production of erythropoietin

34 / 40

What is the term for the process of regulating body temperature through sweating and shivering?

Glycogenesis

Osmoregulation

Thermoregulation

35 / 40

Which hormone is released in response to low blood calcium levels, promoting calcium reabsorption from bones?

Insulin

Thyroxine

Parathyroid hormone (PTH)

36 / 40

How does the body respond to a decrease in blood oxygen levels?

Decrease in heart rate

Increase in respiratory rate and depth

Expansion of blood vessels

37 / 40

What is the primary function of the spleen in homeostasis?

Filtering and removing old or damaged blood cells

Regulating blood pressure

Producing insulin

38 / 40

How does the body respond to a decrease in blood pressure?

Vasodilation and increased heart rate

Increased blood volume

Release of renin and activation of the renin-angiotensin-aldosterone system

39 / 40

How does the body respond to an increase in blood pressure?

Vasodilation and decreased heart rate

Decreased blood volume

Vasoconstriction and increased heart rate

40 / 40

What is the role of the hypothalamus in homeostasis?

Producing insulin

Acting as a control center for temperature and thirst regulation

Controlling voluntary muscle movements

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admin3 weeks ago

0 14 1 minute read