100+ Free IGNOU OPENNET Practice Questions

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Sample IGNOU OPENNET Practice Questions

Try these sample questions to test your IGNOU OPENNET exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which cellular organelle is responsible for the synthesis of adenosine triphosphate (ATP) via aerobic respiration?

A.Mitochondria

B.Lysosome

C.Golgi apparatus

D.Ribosome

Explanation: Mitochondria are known as the powerhouses of the cell because they generate most of the cell's supply of adenosine triphosphate (ATP), used as a source of chemical energy, through the process of cellular respiration.

2Where does gas exchange (oxygen and carbon dioxide) primarily occur in the human lungs?

A.Bronchioles

B.Alveoli

C.Trachea

D.Pleural cavity

Explanation: Alveoli are tiny, thin-walled air sacs at the end of the bronchiole tree where gas exchange between the inhaled air and the bloodstream takes place across the alveolar-capillary membrane.

3Which of the following bones is the longest and strongest bone in the human body?

A.Humerus

B.Tibia

C.Femur

D.Fibula

Explanation: The femur, or thigh bone, is the longest, heaviest, and strongest bone in the human body. It supports the weight of the body and facilitates movement of the lower limb.

4A patient exhibits loss of taste sensation from the anterior two-thirds of the tongue. Which cranial nerve is most likely impaired?

A.Glossopharyngeal nerve (CN IX)

B.Vagus nerve (CN X)

C.Trigeminal nerve (CN V)

D.Facial nerve (CN VII)

Explanation: The chorda tympani branch of the facial nerve (Cranial Nerve VII) provides sensory innervation for taste from the anterior two-thirds of the tongue.

5Which cell type in the gastric mucosa is responsible for secreting hydrochloric acid (HCl) and intrinsic factor?

A.Chief cells

B.Mucous neck cells

C.Parietal cells

D.G cells

Explanation: Parietal (oxyntic) cells in the gastric glands secrete hydrochloric acid (which lowers gastric pH) and intrinsic factor (which is essential for Vitamin B12 absorption in the ileum).

6Which thyroid hormone is produced in the largest quantity by the thyroid gland, but is less biologically active than its converted form?

A.Triiodothyronine (T3)

B.Thyroxine (T4)

C.Calcitonin

D.Thyroid-stimulating hormone (TSH)

Explanation: Thyroxine (T4) represents about 90% of the thyroid hormone released by the thyroid gland. However, it is converted in peripheral tissues to triiodothyronine (T3), which is 3 to 4 times more biologically potent.

7In which segment of the nephron does the majority of water, glucose, and sodium reabsorption occur under normal physiological conditions?

A.Collecting duct

B.Loop of Henle

C.Distal convoluted tubule

D.Proximal convoluted tubule

Explanation: Under normal conditions, the proximal convoluted tubule (PCT) is responsible for reabsorbing approximately 65% of filtered water and sodium, and 100% of filtered glucose and amino acids.

8Which layer of the epidermis is present only in thick skin, such as the palms of the hands and soles of the feet?

A.Stratum lucidum

B.Stratum corneum

C.Stratum basale

D.Stratum granulosum

Explanation: The stratum lucidum is a thin, clear, dead layer of keratinocytes located between the stratum granulosum and stratum corneum. It is found exclusively in the thick skin of the palms and soles.

9If a patient has a heart rate of 75 beats per minute and a stroke volume of 70 mL, what is the calculated cardiac output?

A.5.25 Liters/minute

B.4.50 Liters/minute

C.6.00 Liters/minute

D.3.75 Liters/minute

Explanation: Cardiac Output (CO) is calculated by multiplying Heart Rate (HR) by Stroke Volume (SV). Here: CO = 75 beats/min * 70 mL/beat = 5250 mL/min, which is equivalent to 5.25 Liters/minute.

10During the depolarization phase of a neuronal action potential, which ionic movement across the cellular membrane is primarily responsible for the rapid positive shift in membrane potential?

A.Outflow of potassium ions

B.Inflow of sodium ions

C.Inflow of calcium ions

D.Outflow of chloride ions

Explanation: Depolarization occurs when voltage-gated sodium channels open rapidly, allowing an influx of positively charged sodium (Na+) ions down their electrochemical gradient into the cell.

About the IGNOU OPENNET Exam

The IGNOU OPENNET is the entrance test for admission to the 2-year Post-Basic B.Sc. Nursing program at IGNOU. The exam tests general nursing subjects and eligibility competencies.

Questions

120 scored questions

Time Limit

150 minutes

Passing Score

Counselling Merit

Exam Fee

₹1,000 (Indira Gandhi National Open University (IGNOU))

IGNOU OPENNET Exam Content Outline

100%

General Nursing and Midwifery (GNM) Subjects

Anatomy & Physiology, Nursing Foundations, Medical-Surgical Nursing, Midwifery and Gynecological Nursing, Pediatric Nursing, Psychiatric Nursing, and Community Health

How to Pass the IGNOU OPENNET Exam

What You Need to Know

Passing score: Counselling Merit
Exam length: 120 questions
Time limit: 150 minutes
Exam fee: ₹1,000

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

IGNOU OPENNET Study Tips from Top Performers

1Review the complete GNM curriculum, focusing heavily on Medical-Surgical Nursing and Midwifery.

2Understand standard clinical protocols, drug calculations, and nursing procedures.

3Take mock exams under the 150-minute time constraint to improve speed.

Frequently Asked Questions

What is the qualification for IGNOU OPENNET?

Candidates must have completed 10+2 along with a GNM Diploma and have at least 2 years of experience as a registered nurse (RN & RM).

How many questions are on the IGNOU OPENNET?

The exam consists of 120 objective-type multiple-choice questions (MCQs).

Is there negative marking in IGNOU OPENNET?

No, there is generally no negative marking in the OPENNET exam.

100+ Free IGNOU OPENNET Practice Questions

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