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UPSC Exam  >  UPSC Test  >  General Science(Prelims) by IRS Divey Sethi  >  Test: Biology - 2 - UPSC MCQ

Biology - 2 - Free MCQ Practice Test with solutions, UPSC General Science


MCQ Practice Test & Solutions: Test: Biology - 2 (10 Questions)

You can prepare effectively for UPSC General Science(Prelims) by IRS Divey Sethi with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Biology - 2". These 10 questions have been designed by the experts with the latest curriculum of UPSC 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 12 minutes
  • - Number of Questions: 10

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Test: Biology - 2 - Question 1
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What is the primary function of the endocrine system in the human body?

Detailed Solution: Question 1

The correct answer is Option C: To secrete hormones directly into the bloodstream.

The endocrine system is responsible for producing and secreting hormones directly into the bloodstream. These hormones play a crucial role in regulating various physiological processes in the body, including growth, metabolism, and the functioning of other organs and systems.

Test: Biology - 2 - Question 2
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Which gland is often referred to as the "Master Gland" in the endocrine system?

Detailed Solution: Question 2

The correct answer is Option B: Pituitary gland.

The pituitary gland is often called the "Master Gland" because it controls the release of hormones from other endocrine glands and plays a central role in regulating various bodily functions.

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Test: Biology - 2 - Question 3
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What is the function of the hormone oxytocin or Pitocin?

Detailed Solution: Question 3

The correct answer is Option C: It stimulates smooth muscle contractions, especially during childbirth.

Oxytocin, also known as Pitocin, plays a key role in stimulating contractions of the uterine muscles during childbirth. It also helps in the secretion of milk in females.

Test: Biology - 2 - Question 4
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Which gland is responsible for regulating the body's basal metabolic rate (BMR)?

Detailed Solution: Question 4

The correct answer is Option A: Thyroid gland.

The thyroid gland is responsible for regulating the body's basal metabolic rate (BMR), which is the minimum energy requirement for maintaining the body during rest or sleep. It does so by secreting hormones like thyroxine.

Test: Biology - 2 - Question 5
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What hormone is secreted by the pancreas to control the amount of sugar in the blood?

Detailed Solution: Question 5

The correct answer is Option A: Insulin.

Insulin is secreted by the pancreas and is responsible for controlling the amount of sugar in the blood by facilitating the uptake of glucose by cells.

Test: Biology - 2 - Question 6
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Which hormone is secreted by the adrenal medulla and is responsible for the "fight or flight" response?

Detailed Solution: Question 6

The correct answer is Option C: Adrenaline (epinephrine).

Adrenaline, also known as epinephrine, is secreted by the adrenal medulla and is responsible for the body's "fight or flight" response. It increases heart rate, respiratory rate, and prepares the body to respond to stressful situations.

Test: Biology - 2 - Question 7
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What is the main function of cardiac muscles in the human body?

Detailed Solution: Question 7

The correct answer is Option C: To pump blood through the heart.

Cardiac muscles are responsible for pumping blood through the heart, ensuring that oxygenated blood is circulated throughout the body. Unlike skeletal muscles, cardiac muscles are involuntary and continuously contract to maintain blood circulation.

Test: Biology - 2 - Question 8
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Which type of muscles are attached to bones and are under conscious control?

Detailed Solution: Question 8

The correct answer is Option C: Striated (skeletal) muscles.

Striated muscles, also known as skeletal muscles, are attached to bones and are under conscious control. These muscles enable voluntary movements and are responsible for activities like walking and lifting objects.

Test: Biology - 2 - Question 9
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Which respiratory organ serves as a common passage for both air and food in the human body?

Detailed Solution: Question 9

The correct answer is Option C: Pharynx.

The pharynx serves as a common passage for both air and food in the human body. It is a part of the respiratory and digestive systems, helping to direct air into the trachea and food into the esophagus.

Test: Biology - 2 - Question 10
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What is the main function of the epiglottis in the respiratory system?

Detailed Solution: Question 10

The correct answer is Option C: To protect the glottis from the entry of food.

The epiglottis is a flap of tissue in the larynx that covers the glottis (the opening into the windpipe or trachea) during swallowing. Its main function is to prevent food and liquids from entering the trachea and lungs, thus protecting the respiratory system from foreign particles.

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About this UPSC Practice Test

This test contains 10 MCQs on Biology - 2 with detailed solutions for each question. It is part of the General Science(Prelims) by IRS Divey Sethi course on EduRev, designed to align with the current UPSC syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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