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Nervous and Endocrine Systems – GK Quiz with Answers – Level 3

Tough practice on reflex arcs, synapse transmission, medulla and cerebellum roles, thyroxin and iodine, growth hormone and the feedback control of insulin and blood sugar.

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Questions, answer key and solutions.

Questions
50
Duration
35 min
Marks
50

Negative marking

Attempts
100
Access
Free
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Normal practice, or a Simulated test

Both use the same questions. Normal practice is untimed and needs no account: choose an option and the answer and solution appear at once. The Simulated test is the real computer-based format, with one 35-minute clock, a question palette and full screen, and your score, the key and the solutions arrive when you submit.

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Untimed

Every question on one page, loading as you scroll. Choose an option and see straight away whether it was right.

  • No timer. Nothing to start and nothing to submit. Stop whenever you like.
  • Answered as you choose. Tap an option and it is marked at once, with the correct answer shown.
  • Solutions in place. The explanation, and the video where one has been added, sit under the question.
  • Open to guests. Normal practice needs no sign-in.
Real exam conditions

Simulated

Timed CBT

The computer-based test format: one clock, a question palette, and a score the moment you submit.

  • A clock that does not pause. 35 minutes from the moment you begin, and the paper is submitted for you when it reaches zero.
  • Question palette. Answered, not answered and marked for review, section by section, as the real interface has it.
  • Full screen, proctored. The test takes over the screen; leaving it three times submits the paper.
  • Answers hidden until you submit. The key, the explanations and your score all arrive together at the end.

About this test

Nervous and Endocrine Systems Level 3 GK Quiz on Nerves and Hormones

This Level 3 GK quiz builds a working understanding of control and coordination in the human body through nerves and hormones. It covers reflex arcs, synapse transmission, brain regions, endocrine glands and the feedback control of blood sugar. Every question has an explanation on Aptitude360.

Areas of coordination this nervous and endocrine set covers

  • Neurons, dendrites, axons and one-way transmission of impulses across a synapse
  • Reflex arcs in the spinal cord, the order of events on touching a hot object, and why reflexes are needed
  • Fore-brain, mid-brain and hind-brain, with the roles of the medulla, cerebellum and hypothalamus
  • Protection of the brain inside the skull by a fluid-filled covering
  • Thyroid, pituitary, adrenal glands and pancreas, plus testosterone and oestrogen at puberty
  • Goitre, dwarfism and diabetes, and the hormone or gland behind each

Concepts to revise on nervous and hormonal control

  • Iodine as a raw material for thyroxin and the reason iodised salt is advised
  • The hypothalamus sending releasing factors that make the pituitary secrete growth hormone
  • Adrenaline from the adrenal glands speeding up the heartbeat in emergencies
  • Rising blood sugar triggering insulin release from the pancreas through feedback
  • Involuntary actions under the medulla compared with balance and posture under the cerebellum

Smart ways to prepare for coordination questions

  • Build a table of gland, hormone, effect and deficiency disorder
  • Rehearse sequences such as impulse transmission and blood sugar feedback step by step
  • Watch for swapped facts, such as adrenaline credited to the pituitary or growth hormone to the thyroid

Who this Level 3 set suits

General Awareness aspirants revising Biology who have covered the basics of control and coordination and want harder sequencing and matching practice.

FAQs about Nervous and Endocrine Systems – GK Quiz with Answers – Level 3

How do the nervous and endocrine systems work together?
The nervous system sends fast electrical impulses through neurons, while the endocrine system releases hormones into the blood for slower, longer-lasting control. The hypothalamus links the two by signalling the pituitary gland.
What is the difference between the nervous and endocrine system?
The nervous system uses nerve impulses and acts within moments. The endocrine system uses hormones secreted directly into the blood, and their effects are slower but last longer.
Why is iodised salt recommended?
The thyroid gland needs iodine to make thyroxin. A lack of iodine can cause goitre, a swelling of the neck.
Which part of the brain controls balance and posture?
The cerebellum in the hind-brain controls balance, posture and precise voluntary movements. The medulla, also in the hind-brain, controls involuntary actions such as blood pressure, salivation and vomiting.

Test structure

How the paper is split, and how long each part runs. A section you have finished cannot be returned to.

SectionQuestionsTime
Nervous and Endocrine Systems GK Level 35035 min

Marking & rules

Total marks
50 across 50 questions.
Negative marking
A wrong answer costs marks. Leaving a question unanswered costs nothing.
Attempts
100 in total. An attempt is spent the moment you begin one.

What you get when you submit

The analysis is ready the moment you submit the paper.

Score and accuracy

Marks, percentage, right, wrong and skipped, and the time you took.

Section by section

The same figures for each section, so a weak one cannot hide in an average.

The full answer key

Every question with your answer, the right one, the working, and the video where there is one.

Where you stand

Your score against the spread of everyone else who has sat this test.

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