GNM Previous Year Question Paper of Bio Science (Anatomy, Physiology and Microbiology) Short Question and Answer for GNM 1st Year

GNM 1st Year Bio-Science Short Questions

  Bio Science (Anatomy, Physiology and Microbiology) Previous Year Short Question with Answer Fill in the blanks: 1. Life span of RBC is ____________days.➥ 120 Days2. Suprarenal gland is otherwise known as________ .➥ Adrenal Gland3. The bones are connected to bones by_________ .➥ Legaments4. The heart is situated in the________ cavity.➥ Thoracic Cavity5. Which of the following is not an enzyme. ( i) Amylase ii) Pepsin iii) Stomatotropin iv) Trypsin )➥ Stomatotropin 6. Which one of the following is not a part of small intestine. i) Caeccum ii) Duodenum iii) Jejunum iv) Ileum ➥ Caeccum 7. In which part of the human body find the islet of Langerhans. ➥ Pancreas 8. Adult human body consists of _______ number of bones. ➥ 206 9. ______ is the structure unit of Kidney. ➥ Nephron 10. ______ is the pacemaker of the heart. ➥Sinoatrial (SA) node 11. Enlargement of spleen is called as _______ ➥Splenomegaly 12. Largest gland in our body is ➥ Liver 13. Power house of the cell is ➥ Mitochondria 14. In which part of the human body find the islet of Langerhans ➥ Pancreas 15. The blood is a _________ tissue. ➥ Connected 16. The retina is a _________layer of eye. ➥  Innermost 17. The space between lungs is called ________. ➥ Plural Space 18. Taste buds contain ________ receptors ➥ Gustatory cells 19. Rickets is caused by deficiency of ➥ Vitamin D 20. The longest bone in human body is  ➥ Femur 21. Act of swallowing is called ➥ Deglutition 22. Suprarenal gland is also called as_________ ➥ Adrenal gland 23. The organ of locomotion of bacteria is __________ ➥ Flagellum 24. Tuberculosis is caused by _________   ➥ Mycobacterium tuberculosis 25. The end part of small intestine is ________ ➥ ileum 26. The end products of carbohydrate metabolism are ➥ Monosaccharides  27. The hormone which is secreted by thymus gland is ➥ Thymosin  28. Penicillin was discovered by ➥Alexander Fleming 29. Left atrio-ventricular valve in the heart is also known as _______ valve ➥ mitral valve 30. The largest part of the brain is ______ ➥ cerebrum 31. Leprosy is caused by ________ ➥ Mycobacterium leprae 32. Best method of sterilization is ________ ➥ Autoclaving 33. Inner most layer of the blood vessel is   ➥ Tunica intima 34. The Crania nerve responsible for Sense of smell is ➥Olfactory  35. Bone forming cell are called as ➥Osteoblasts  36. The main artery supplying to the brain is ➥ Circulus arteriosus 37. Middle layer of heart is called as _________ ➥ Myocardium 38. Cholera is caused by __________   ➥ Vibrio cholerae 39. The smallest bone in human body is __________ ➥ Stapes 40. __________ is largest lymphatic organ ➥ Spleen 41. Normal duration of cardiac cycle is   ➥ 0.8 seconds 42. The acid-fast bacteria is ➥ Mycobacterium tuberculosis 43. The first part of large intestine is ➥ Caecum  44. Space between the two lungs in the thoracic cavity is known as ___________ ➥ Mediastinum 45. Supra renal gland is also called as _________   ➥ Adrenal gland 46. Insulin is secreted by ___________ cell of the pancreas ➥ beta 47. __________ is the covering membrane the bone ➥ Periosteum 48. The movable bone in the skull is _________ ➥ Mandible 49. Temporary teeth begin to erupt at the age of ________ ➥ 6 year 50. The largest part of the brain is _______ ➥ Cerebrum  Read More: GNM Annual Exam Question Paper 2024 (KNC) 51. The first phase of cell division is _______ ➥ prophase 52. ___________ is the hormone secreted by Thymus gland ➥ Thymosin 53. The life span of RBC is _____________ days. ➥ 120 days 54. ___________ is called as the power the house of the cell ➥ Mitochondria 55. Typhoid is caused by____________ ➥ Salmonella Typhi 56. Tear producing gland are ➥ Lacrimal 57. The fertilization takes place in the ➥ Fallopian tube 58. The pace maker of the heart is ➥S A Node 59. The organ of taste is ➥ Tongue 60. Blood vessel which carry blood away from the heart to different parts of The body are called_________ ➥ Veins 61. __________nerve is the first cranial nerve of our body ➥ Olfactory 62. ___________is called as the voice box of human body ➥ Larynx 63. The main artery in the human body is_______ ➥ aorta 64. The body power to resist infection is called   ➥ Immunity 65. Axon is covered by a membrane called ➥ Axolemma  66. The thoracic cage consists of ➥ 12 pairs of ribs 67. Endocrine glands secrete ➥ Hormones 68. ___________is the largest gland in Human body. ➥ Liver 69. ___________is the membrane covering brain and spinal cord.   ➥ Meninges  c) The bone of the lower law is called_________   ➥ Mandible 70. Leprosy is caused by___________ ➥ Mycobacterium leprae 71. The power house of the cell is_________ ➥ Mitochondria  72. Blood vessels which carry blood towards heart are called________   ➥ Veins 73. Tuberculosis is caused by___________ ➥ Mycobacterium tuberculosis 74. ________ is second cervical vertebra ➥ Axis 75. ________ is the covering membrane of the nerve   ➥ Myelin sheath 76. ________ is the inner most layer of the uterus ➥ Endometrium 78. Buccinator is ________ in cheek ➥ muscle 79. Eyelids protect eye from __________ ➥ Foreign body 80. Muscle cells are specialized from _________ ➥ myoblasts 81. __________is the functional unit of the kidney ➥ nephron 82. _________is the respiratory organ ➥ Lungs 83. Exocrine gland secret __________ ➥ Enzymes 84. Space between two lungs is called as ___________ ➥ Mediastinum 85. Receptors for bright light and colour vision is __________ ➥ Cone cells 86. Tall of the spinal cord is called as ___________ ➥ coccyx 87. The innermost layer of Brain is. ➥Piamater 88. The fertilized Ovum is called as ➥Zygote 89. Brain and Spinal cord are the parts of ➥Central Nervous system 90. The __________ is the largest bone of the foot ➥ calcaneus 91. The Bat shaped bone is ________ bone ➥ sphenoid 92. Thread like structures arising from cytoplasm and  extending out through cell wall is called __________ ➥ GolgyBodies 93. The middle layer of heart is ________ ➥ myocardium 94. Growth of microorganisms in the presence of oxygen. ➥Aerobic 95. The inner most layer of … Read more

Factors Affecting Human Growth and Development

Illustration of growth and development factors.

Factors Affecting Human Growth and Development Introduction: Human Growth and Development are very closely related to each other. Growth and Development is a continuous and elderly process. Definition: ➦ Growth: Growth is change in size, in proportion, disappearance of old features and acquisition of new ones. — (Hurlock) ➦Development: Development means a progressive series of changes that occur in an orderly predictable pattern as a result of maturation and experience. — (Hurlock)   Difference of Growth and Development: Aspect Growth Development Definition Increase in size and mass of an organism. Improvement in complexity and functionality. Measurement Quantitative (height, weight, size). Qualitative (skills, capabilities, maturity). Nature Physical changes only. Includes physical, cognitive, emotional, and social changes. Timeframe Limited to a certain period (e.g., childhood). Continuous process throughout life. Examples Increase in height, weight, organ size. Learning new skills, emotional maturity, social relationships. Factors Influencing Nutrition, genetics, health conditions. Education, environment, life experiences. Focus Area Biological aspect. Holistic aspect (biological, psychological, social). Reversibility Generally irreversible after a certain point. Can be reversible (skills can be lost or regained). Impact on Individual Affects physical body. Affects overall personality and capabilities. Dependency Can occur without significant cognitive changes. Often requires cognitive and emotional involvement. Indicators Height, weight, organ growth charts. Milestones in learning, emotional responses, social skills. Factors that Affect Groth and Development: Major factors are involved that affect human growth and development those can be biologically, environmentally or on the bases of human lifestyles. All the factors are explained in the points below- 1. Biological Factors:     A. Genetics: Genetic inheritance plays a significant role in determining physical traits such as height, eye colour, hair type, and even predisposition to specific health conditions.     B. Hormones:     All the hormones play a crucial role in the development of the body, like Growth Hormone (GH), which is responsible for the growth of the body by effecting metabolism, Gonadotropin Hormones (GTH) effects the growth during puberty etc.     C. Parenteral  Factor:     The nutritional status of a mother, the size of the womb and exposure to any harmful substance during pregnancy can have a lasting effect on growth and development. 2. Environmental Factors:     A. Nutrition:     Nutrition provides the necessary raw materials for growth. A balanced diet is essential for supporting immune function, cognitive development, and overall health.     B. Environmental Conditions:     Environmental factors such as pollution, climate, and housing conditions can significantly impact the growth and development of a human.     C. Physical Activity:     Regular physical activity helps to gain muscle strength, bone density, and cardiovascular fitness, while also providing an outlet for energy release and stress reduction 3. Socioeconomic Factors     Social Status:     Socioeconomic factors like living conditions, education, income, and access to healthcare can strongly influence growth and development. Higher socioeconomic status often translates into better access to nutritious food, safer living environments, quality education, and healthcare. 4. Other Factors     A. Sex:     The sex of an individual can influence physical growth and development, with boys generally being taller and physically stronger than girls, and girls maturing faster during adolescence.     B. Family Dynamics:     Family relationships and dynamics can impact a child’s emotional and socio-emotional development.

Definition of Blood. Blood Components and it’s Functions

Diagram of blood components and functions

Blood Definition (What is blood?): Blood is a red colour viscous fluid, found in the cardiovascular system that carries oxygen, nutrition and carbon dioxide to cells throughout your body. A fit normal human have arround 5 liters blood in their body. Color range Oxygen-rich blood is scarlet red Oxygen-poor blood is dull red pH must remain between 7.35-7.45 Slightly alkaline Blood temperature is slightly higher than body temperature Components Of Blood: The main components of blood are classified below: Blood is composed of several components that are classified on the above picture, each have their own functions: Red Blood Cells (Erythrocytes): 1. RBCs are one of the primary cellular components of blood. 2. RBCs are biconcave, disc-shaped cells with a depressed centre, maximizing their surface area-to-volume ratio for efficient gas exchange. 3. RBCs contain haemoglobin, a complex protein composed of globin (protein) and heme (iron-containing pigment). Responsible for transporting oxygen from the lungs to body tissues and carrying carbon dioxide from tissues to the lungs for exhalation. White Blood Cells (Leukocytes): 1. WBCs Play a crucial role in the immune system’s defence against pathogens.2. Include several types such as neutrophils, lymphocytes, monocytes, eosinophils, and basophils, each with specific functions in immunity. Platelets (Thrombocytes): 1. Platelets are small, colourless cell fragments found in the bloodstream involved in blood clotting.2. Form clots to prevent excessive bleeding when blood vessels are injured. Plasma: 1. Plasma are a yellowish fluid component of blood, constituting about 55% of its volume. It contains water, electrolytes, proteins (albumin, globulins, fibrinogen), hormones, nutrients, and waste products. ★ Normal Level Of Blood Components in Human Body: Blood Component Normal Range Red Blood Cells (RBCs) Male: 4.5 – 5.9 million cells/μL Female: 4.0 – 5.2 million cells/μL White Blood Cells (WBCs) 4,500 – 11,000 cells/μL Platelets 150,000 – 400,000 platelets/μL Plasma Constitutes about 55% of total blood volume Functions of Blood:     ★ Transport Function: RBC carries O2 from the lungs to the rest of the body. Nutrients, such as glucose, amino acids, and fatty acids are transported to cells for energy and other metabolic processes. In the human body hormones are secreted by some endocrine glands and those hormones are also transported by blood to the other cells, tissues and organs. Blood carries metabolic waste products, such as carbon dioxide and urea, away from cells to be eliminated through the lungs and kidneys, respectively.     ★ Immunity Function: White blood cells (leukocytes) play a crucial role in the immune system by defending the body against pathogens, such as bacteria, viruses, and fungi. They multiply rapidly during infections.     ★ Thermoregulation Function: Blood helps to maintain body temperature by re-distributing heat to the whole body.

Flat bones: Examples of Flat Bones and Functions of Flat Bones

Flat Bones Introduction: Flat bones are one of the four primary classifications of bones in the human body. The main classification of 4 bones are: Long bones Short bones Irregular bones Flat bones They have a relatively flat, thin shape and are composed of two layers of compact bone tissue with a layer of spongy bone tissue in between. These bones play important roles in the protection, support, and production of blood cells. Structure of Flat Bones: Flat bones are characterised by their flat, plate-like shape. They typically consist of two layers of compact bone tissue on the outer surfaces, which enclose a layer of spongy bone tissue in the middle. The spongy bone contains bone marrow and blood vessels. ➤Flat bone examples: skull bones, scapulae (shoulder blades), sternum (breastbone), ribs, and certain bones of the pelvis. Functions of Flat Bones: 1. Protection: Flat bones provide protection to underlying vital organs. For example, the skull bones protect the brain, while the ribs and sternum protect the heart and lungs. 2. Hematopoiesis: The spongy bone tissue within flat bones is involved in hematopoiesis, which is the process of producing blood cells. Red and white blood cells, as well as platelets, are produced within the bone marrow of flat bones. 3. Support and Attachment: Flat bones provide a broad surface area for the attachment of muscles, tendons, and ligaments. Muscles that are involved in movement and posture depend on flat bones for attachment points. 4. Mineral Storage: Like other types of bones, flat bones also play a role in storing minerals like calcium and phosphorus. These minerals are vital for various physiological processes, including bone health and muscle contraction. 5. Temperature Regulation: Blood flow within flat bones helps regulate body temperature. Conclusion: Flat bones have a unique structure that contributes to their functions in protection, support, blood cell production, mineral storage, and thermal regulation. Their flat and broad shape makes them well-suited for these roles, and they play an essential part in the overall function of the skeletal system and the body as a whole.   Download PDF: Click Here