12th Class Biology Chapter 15 MCQs with Answers

AdminApril 5, 2024

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Welcome to the 12th Class Biology Chapter 15 MCQs Practice and Quiz Tests. We are presenting you with top MCQ questions from the 12th Class Biology Chapter 15 Homeostasis.

You can find all the 12th Class Biology Chapter 15 MCQs online tests on our website. These online tests are great for learning and as well as for scoring maximum marks in your Intermediate Exams. We are making these Class 12 Biology MCQs online tests for those who want full marks in their exams.

12th Class Multiple Choice Question Chapter 15 with Answers Free PDF

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Grade 12 Biology Chapter 15 Online Quiz

By presenting 3 options to choose from, 12th Class Biology Chapter 15 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 12th Class Questions and Answers and click over the correct answer.

Test Name: 12th Class Biology Chapter 15 Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure high marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply comment below this post, so that we can update the answer in the quiz section.

12th Class Biology Chapter 15: Homeostasis

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1 / 40

Which hormone is responsible for promoting glucose uptake by cells, thus lowering blood glucose levels?

Insulin

Glucagon

Cortisol

2 / 40

Which part of the brain controls hormone secretion by the pituitary gland?

Hypothalamus

Cerebellum

Medulla oblongata

3 / 40

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

Increasing blood calcium levels

Decreasing blood calcium levels

Regulating blood pressure

4 / 40

Which hormone regulates water reabsorption in the kidneys, thus controlling blood volume and pressure?

Antidiuretic hormone

Insulin

Aldosterone

5 / 40

Which hormone regulates blood calcium levels by promoting calcium deposition in bones?

Thyroid hormone

Parathyroid hormone

Calcitonin

6 / 40

Which part of the brain controls breathing rate and depth to maintain appropriate oxygen levels in the blood?

Medulla oblongata

Hypothalamus

Cerebellum

7 / 40

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

Regulating hormone levels

Removing waste products

Regulating blood pressure

8 / 40

What is the role of glucagon in the body?

Increasing blood glucose levels

Lowering blood glucose levels

Regulating body temperature

9 / 40

What is the role of antidiuretic hormone (ADH) in the body?

Stimulating hunger

Regulating blood glucose levels

Regulating water reabsorption in the kidneys

10 / 40

What is the process by which the body maintains a stable internal environment?

Homeostasis

Osmoregulation

Thermoregulation

11 / 40

Which gland is responsible for producing adrenaline, a hormone involved in the fight or flight response?

Thyroid gland

Pituitary gland

Adrenal gland

12 / 40

Which part of the brain regulates hunger and satiety signals?

Hypothalamus

Cerebellum

Medulla oblongata

13 / 40

What is the function of the kidneys in homeostasis?

Regulating body temperature

Regulating blood pressure

Regulating water and electrolyte balance

14 / 40

Which hormone regulates blood pressure by increasing sodium reabsorption and potassium excretion in the kidneys?

Antidiuretic hormone

Insulin

Aldosterone

15 / 40

Which hormone is responsible for stimulating hunger and regulating appetite?

Insulin

Leptin

Ghrelin

16 / 40

What is the role of leptin in the body?

Suppressing appetite

Stimulating hunger

Regulating blood glucose levels

17 / 40

Which part of the brain regulates body temperature by initiating sweating or shivering responses?

Cerebellum

Medulla oblongata

Hypothalamus

18 / 40

What is the role of the liver in maintaining homeostasis?

Regulating blood pressure

Regulating glucose levels

Regulating body temperature

19 / 40

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

Regulating body temperature

Regulating blood pressure

Regulating hormone levels

20 / 40

What is the role of erythropoietin in the body?

Regulating body temperature

Regulating blood glucose levels

Stimulating red blood cell production

21 / 40

What is the primary role of the respiratory system in homeostasis?

Regulating oxygen and carbon dioxide levels

Regulating blood pressure

Regulating body temperature

22 / 40

Which gland is responsible for producing growth hormone, which stimulates growth and development?

Pituitary gland

Thyroid gland

Adrenal gland

23 / 40

What is the role of atrial natriuretic peptide (ANP) in the body?

Regulating blood glucose levels

Stimulating hunger

Promoting sodium excretion

24 / 40

Which gland is responsible for producing melatonin, a hormone involved in regulating sleep-wake cycles?

Pineal gland

Thyroid gland

Pituitary gland

25 / 40

What is the primary function of cortisol in the body?

Regulating stress response

Regulating body temperature

Regulating blood glucose levels

26 / 40

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

Regulating hormone levels

Regulating blood pressure

Nutrient absorption

27 / 40

What is the primary role of the hypothalamus in homeostasis?

Regulating body temperature

Regulating hunger

Regulating thirst

28 / 40

Which hormone is responsible for increasing blood calcium levels by stimulating bone resorption?

Parathyroid hormone

Thyroid hormone

Calcitonin

29 / 40

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

Regulating blood pressure

Regulating hormone levels

Regulating body temperature

30 / 40

Which organ is primarily responsible for regulating blood glucose levels?

Kidney

Pancreas

Liver

31 / 40

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

Regulating hormone levels

Transporting nutrients and oxygen

Regulating body temperature

32 / 40

Which hormone is responsible for promoting sodium reabsorption and potassium excretion in the kidneys?

Antidiuretic hormone

Insulin

Aldosterone

33 / 40

Which hormone is released by the adrenal glands during times of stress to increase blood sugar levels?

Glucagon

Insulin

Cortisol

34 / 40

What is the role of aldosterone in the body?

Regulating sodium and water balance

Stimulating hunger

Regulating blood glucose levels

35 / 40

Which part of the brain controls thirst and regulates water balance in the body?

Hypothalamus

Cerebellum

Medulla oblongata

36 / 40

What is the role of thyroid hormone in the body?

Regulating metabolism

Regulating blood glucose levels

Regulating blood pressure

37 / 40

What is the primary function of insulin in the body?

Lowering blood glucose levels

Regulating blood pressure

Increasing blood glucose levels

38 / 40

Which hormone is responsible for regulating calcium and phosphate levels in the blood and bones?

Thyroid hormone

Calcitonin

Parathyroid hormone

39 / 40

Which gland is responsible for producing hormones that regulate metabolism and energy expenditure?

Adrenal gland

Pituitary gland

Thyroid gland

40 / 40

Which hormone is released by the kidneys to stimulate red blood cell production in response to low oxygen levels?

Aldosterone

Erythropoietin

Insulin

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AdminApril 5, 2024

0 11 1 minute read