12th Grade Physiology Quizzes , Questions & Answers

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Dr Gawad Physiology Course Online Exam - Excitable - Lec 1 (Introduction, Resting Membrane Potential, Action Potential)

8 MCQs (Only one correct answer) Each MCQ: 1 mark, Total mark: 8 (you will get the results immediately with correction by the web) Allowed time: 10 min Good Luck

Questions: 8 | Attempts: 297 | Last updated: Aug 22, 2025

Sample Question 1
Regarding the physiology of active (Na-K) pump:

It is a Trans membrane protein showing large number of binding sites on its interior aspect

Inner ATPase activity is concerned to produce conformational change followed by 2 K+ pumped inside

Ions migrate uphill against both (concentration + electrical) gradient

Binding of (Na – K) to their respective binding sites is followed by activation of the inner ATPase

All is true

Sample Question 2
The main cause of depolarization of nerve is:

K outflux

Na influx

Cl outflux

None of the above

Sample Question 3
At stage of complete depolarization of action potential of the curve

K out flux is the major change

Na out flux is the major change

The potential difference between outer and inner surface is Zero

Na-K pump is acting with full capacity

Recent Physiology Quizzes

Mastering Osmoregulation and Excretory Systems Quiz

Enhance your understanding of how animals manage water and electrolyte balance. This learning tool focuses on key physiological processes and vocabulary, essential for students and professionals in biology and veterinary sciences.

Questions: 10 | Attempts: 69 | Last updated: Oct 31, 2025

Sample Question
Identify the reasons why water and electrolyte homeostasis are important in animals.

Animals can survive without regulating their water and electrolyte levels

If no Electrolytes...1. muscle spasms2. confusion3. system of balance4. heart5. tired6. paralysisIf no Water..2. keep ion concentration at constant rate

Water and electrolyte balance only affects animals' appearance

Water and electrolytes are not important in animal homeostasis

Animal and Human Sensory and Communication Systems Quiz

Explore the intricate sensory systems of animals with this focused quiz. Delve into how animals touch, see, feel, and taste, understanding the biological workings of their organs. Perfect for learners aiming to deepen their...

Questions: 16 | Attempts: 15 | Last updated: Aug 4, 2025

Sample Question
Describe the honeybee mating system. Which bees secrete alarm pheromone, and what does it do? What is the purpose of queen mandibular pheromone?

Drones: females, gather food; Queen: male, protects hive; Workers: males, mate with queen.

Drones: females, protect hive; Queen: female, mate with drones; Workers: males, lay eggs.

Drones: males, protect hive; Queen: male, lays eggs; Workers: females, search for new hive locations.

Drones: men, sit in hive and inseminate the queenQueen: only fertile femaleWorkers: females; maintain hive and watch bee offspring alarm pheromone-release by drones when hive is under attack, workers respond (only ones with stingers)queen mandibular pheromone-sterilizes workers

Life Processes Class 10 MCQ Questions With Answers

If you're studying in class 10th or have just passed the exam, take this 'Life Processes Class 10 MCQ Questions With Answers' quiz and check your knowledge on the same. Life Processes are the basic biological...

Questions: 13 | Attempts: 3716 | Last updated: Jan 22, 2025

Sample Question
It helps remove substances you don't need from your body.

Circulatory system

Excretory system

Respiratory system

Transportation system

Life Processes Quiz For Class 10

Life processes are vital and essential for an organism to stay healthy and maintain the proper functioning of the body organs. Here is a life processes quiz for class 10 students that consists of questions related to respiration,...

Questions: 15 | Attempts: 32470 | Last updated: Apr 17, 2025

Sample Question
The breakdown of pyruvate to give carbon dioxide, water and energy takes place in __________.

Cytoplasm

Mitochondria

Chloroplast

Nucleus