10th Class Biology English Medium Online Test For Full Book With Answers

10th Class Biology English Medium Online Test For Full Book

Sr. # Questions Answers Choice
1 What is the primary function of the kidneys in the human body? To pump blood throughout the body To produce digestive enzymes To filter waste products and excess water from the blood To regulate blood sugar levels
2 Besides protecting the body, the skin contributes to homeostasis primarily through which of these functions? Producing digestive enzymes Regulating blood glucose levels Excreting excess salts and water through sweat Filtering toxins directly from the blood
3 The kidneys play a crucial role in homeostasis by filtering blood and producing urine. What is the primary nitrogenous waste product excreted by human kidneys? Ammonia Urea Uric acid Creatinine
4 When the human body temperature rises above normal, which of the following is a homeostatic response to cool down? Shivering Vasoconstriction of blood vessels in the skin Increased sweat production Piloerection (goosebumps)
5 Which organ system is mainly responsible for osmoregulation in humans? Digestive system Respiratory system Circulatory system Urinary system
6 What is the primary definition of homeostasis in biology? The process of growth and development in an organism. The maintenance of a stable internal environment despite changes in the external environment. The breakdown of complex food molecules into simpler ones. The transmission of genetic information from parents to offspring.
7 What structural feature prevents the trachea from collapsing and ensures a continuous airway? Smooth muscles Elastic ligaments C-shaped cartilaginous rings Bone plates
8 Which gas diffuses from the alveoli into the blood capillaries during the process of gaseous exchange? Carbon dioxide Oxygen Nitrogen Methane
9 What are the tiny air sacs in the lungs where the actual exchange of gases (oxygen and carbon dioxide) occurs? Bronchi Trachea Bronchioles Alveoli
10 Which sequence correctly represents the path of air from the outside environment to the alveoli during inhalation? Nasal cavity → Pharynx → Larynx → Trachea → Bronchi → Bronchioles → Alveoli Larynx → Pharynx → Nasal cavity → Trachea → Bronchi → Bronchioles → Alveoli Nasal cavity → Trachea → Pharynx → Larynx → Bronchi → Bronchioles → Alveoli Pharynx → Nasal cavity → Larynx → Trachea → Bronchi → Bronchioles → Alveoli
11 What is the primary organ responsible for gaseous exchange in humans? Heart Kidneys Lungs Liver
12 Which plant structure plays a crucial role in regulating gaseous exchange and water loss (transpiration) to maintain homeostasis? Root hairs Xylem vessels Stomata Phloem tubes
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