Homeostasis With Answers

Homeostasis

Sr. # Questions Answers Choice
1 Which tube carries urine from the kidney to the urinary bladder? Urethra Ureter Renal artery Renal vein
2 Which of the following is the structural and functional unit of the kidney? Neuron Alveolus Nephron Hepatocyte
3 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
4 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
5 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
6 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)
7 Which organ system is mainly responsible for osmoregulation in humans? Digestive system Respiratory system Circulatory system Urinary system
8 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.
9 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
10 The exudation of water droplets from the margins of leaves, especially in humid conditions, is known as: Transpiration Guttation Evaporation Condensation
11 How do plants get rid of accumulated metabolic waste products like calcium oxalate crystals, especially in deciduous trees? Through root exudates. By storing them in fruits. By shedding leaves in autumn. Through stomatal pores.
12 Which process is primarily responsible for the removal of excess water from plant leaves in the form of water vapor? Respiration Photosynthesis Transpiration Absorption
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