Welcome to biology afns test 2, designed specifically for candidates preparing for the Armed Forces Nursing Services (AFNS) entrance examination. Continuing from our first module, this practice session helps you master fundamental biological concepts, terminology, and high-frequency exam questions.
Results
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#1. The length of this is reduced while the muscle contracts
#2. This about muscle fibers not true
#3. Muscle fatigue is due to the accumulation of
#4. Calcium, during muscle contraction binds with
#5. This happens in a contracted skeletal muscle fiber
#6. Where does the stimulation of muscle fibers by a motor neuron take place?
#7. All of the following occurs in muscle fatigue except:
#8. Glycolysis and Krebs cycle in bacteria take place in:
#9. TMV possesses.
#10. Assertion plasmids are single stranded extra chromosomal DNA reason plasmids are possessed by eukaryotic cells.
#11. Mycopoasma is.
#12. Bacteria differ from viruses in.
#13. Prokaryotic genetic system contains.
#14. Viruses parasitizing bacteria are.
#15. The smallest living cells with cells wall are.
#16. Mitochondria are absent in.
#17. Monerans devoid of cell wall are.
#18. Bacteriophages kill.
#19. nuclear material without nuclear envelope occurs in.
#20. Circulatory system does not help in.
#21. In five kingdom classification which single kingdom contains blue green algae, Nitrogen fixing bacteria and methanogenic archaebacterial.
#22. Maximum surface area of circulator systemis of.
#23. Bundle of his passes stimulus of concentration to.
#24. Blood passes from left ventricle to right atrium. It is.
#25. Which of the following bacterium has highest probability of being non-motile?
#26. Which of the following is correct internal structure of heart.
#27. Cold blooded animal with a single circulation is.
#28. I-band consists of:
#29. The difference between cytoplasm of a typical animal cell and skeletal muscle fiber:
#30. The actin molecules are made up of:
#31. Cross brides pull the actin towards the ________ of sarcomere.
#32. Impulse originating form SA node is transmitted to.
#33. Which pump oxygen depleted blood.
#34. Blood vessel which brings oxygenated blood to left auricle is.
#35. The outer membrane is present in:
#36. Moist heat causes killing of germs by:
#37. Plants, animals and fungi have evolved from:
#38. Heat sensitive compounds can be sterilized by using:
#39. Milk and milk products are protected from bacterial infection by using:
#40. Lymph consists of.
#41. Volume of blood that enters aorta with each ventricular systole is.
#42. Arteries are best defined as vessels which.
#43. The lymphatic tissue are present under the mucous membrane which lines nose, mouth and pharynx and it is called as __________
#44. __________ And lymphatic system both supply fluid flow in the body and these are different type of fluid.
#45. __________ Is the fluid which left behind in the tissues when the blood travels through capillary beds and it moves to venous system?
#46. Primary source of energy for muscle contraction is:
#47. Which of the following is a bacterial infection?
#48. The T-tubule system forms due to penetration of:
#49. In the lymphatic system, lymphatic vessels are connected with the __________ To do its function.
#50. Which of the following duct collects lymph from the left side of body and regions of right side of the body below thorax?
#51. Lymph node are distributed throughout the body and it is not present in __________
#52. In the lymphatic system, lymph contains more __________ Than plasma.
#53. Each muscle fascicle is covered by:
#54. Which of the following is the structural unit of muscles?
#55. The sarcomere is the region between two:
#56. Calcium binding protein in sarcomere is:
#57. __________ causes the myosin head to change its conformation and break the cross bridge.
#58. During muscle contraction, __________ of sarcomere shortens.
#59. Rigor mortis occurs due to:
#60. Right atrium is separated from right ventricle by:
#61. The flaps of tricuspid valve are attached to muscular extensions of right ventricle known as:
#62. In human the closed sac which surrounds the heart is:
#63. Chordae tendineae are the fibrous cords attached with:
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Core Topics Covered in Biology AFNS Test 2
To secure top marks in the AFNS initial academic test, candidates must practice questions across several vital sub-disciplines. This quiz focuses on:
- Enzymology & Metabolism: Chemical nature of enzymes, factors affecting enzyme activity, and metabolic pathways.
- Kingdom Animalia & Plantae: Key characteristics, classification, and biological significance of major phyla.
- Human Physiology: Detailed questions on the endocrine system, hormonal regulation, and excretory functions.
- Biotechnology & Applied Biology: Modern genetic engineering tools, recombinant DNA technology, and medical applications.
Smart Strategies for Clearing AFNS Biology Test 2
- Focus on Standard Definitions: Make sure you thoroughly revise standard textbook definitions from 1st and 2nd-year FSc Biology.
- Track Your Accuracy: Attempt all questions without rushing. Pay close attention to incorrect answers to spot areas needing further revision.
- Consistent Practice: Completing multiple test modules builds testing endurance and speeds up question-solving time during the real exam.
Useful Resources & Next Steps
- Next Quiz: Practice Biology AFNS Test 3 for further practice.
- Main Hub: Access All AFNS Biology Practice Quizzes to attempt tests in order.
- Official Information: For official eligibility requirements and registration details, visit the Join Pak Army Official Website.
General Biology Quiz 2: Human Anatomy & Physiology Overview
Human physiology and systemic anatomy focus on understanding how organ systems coordinate to maintain life. Mastering human biological systems is essential for students preparing for medical entry tests, nursing examinations, and general competitive science quizzes. Biology Quiz 2 evaluates your knowledge of core human physiological systems.
🧠 Key Focus Area: Understanding organ interplay, hormonal feedback loops, and circulatory mechanisms is vital for high scores in physiology-based quizzes.
1. The Human Circulatory & Cardiovascular System
The human cardiovascular system is a closed network designed to transport oxygen, metabolic nutrients, hormones, and waste materials across body tissues. The muscular four-chambered heart acts as the central pump, divided into two upper atria and two lower ventricles.
Oxygenated blood travels from the lungs into the left atrium, moves into the left ventricle, and is pumped throughout the body via the aorta. Deoxygenated blood returns from systemic circulation via the vena cava into the right atrium, moves to the right ventricle, and travels through the pulmonary artery back to the lungs for re-oxygenation.
2. Human Digestive & Metabolic Process
Digestion converts complex insoluble dietary macromolecules into simple, absorbable chemical nutrients. The digestive tract runs from the mouth to the stomach, small intestine, large intestine, and rectum, assisted by accessory glands including the liver, gallbladder, and pancreas.
Enzymatic Breakdown
Salivary amylase initiates carbohydrate breakdown in the mouth, while pepsin and hydrochloric acid digest proteins in the stomach environment.
Nutrient Absorption
The small intestine (duodenum, jejunum, ileum) utilizes microscopic villi and microvilli to absorb monosaccharides, amino acids, and fatty acids into circulation.
3. The Nervous System & Homeostatic Integration
The human nervous system regulates rapid communication and physiological responses. It is structurally divided into two major divisions:
- Central Nervous System (CNS): Consists of the brain and spinal cord, acting as the master control center for processing sensory inputs and formulating motor outputs.
- Peripheral Nervous System (PNS): Comprises sensory and motor nerves connecting the CNS to limbs, skin, and visceral organs, further divided into somatic and autonomic branches.
4. The Human Respiratory System & Gas Exchange
Respiration facilitates oxygen uptake from the environment alongside carbon dioxide expulsion. Atmospheric air enters via the nasal cavities, passes through the pharynx, larynx, and trachea, and branches into the primary bronchi and bronchioles inside the lungs.
Gas exchange takes place within microscopic, thin-walled structures called alveoli. Hemoglobin, an iron-rich protein contained within red blood cells, binds oxygen to transport it efficiently throughout human body tissues.
5. The Endocrine System & Hormonal Control
The endocrine system regulates gradual physiological processes—such as metabolic rate, growth, and reproduction—using chemical messengers termed hormones. Essential endocrine glands include the pituitary gland (master gland), thyroid, pancreas, adrenal glands, and gonads.
Insulin and glucagon, secreted by pancreatic islets, maintain blood glucose homeostasis. Thyroid hormones (T3 and T4) manage basal metabolic rate, while adrenaline prepares the body for fight-or-flight stress responses.
6. Strategic Review for Biology Quiz 2
To perform well in Biology Quiz 2, focus on reviewing blood flow paths through the cardiac chambers, key digestive enzymes, brain region functions, and homeostatic hormonal feedback loops.