Homeostasis With Answers

Homeostasis

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1 Some plants, known as halophytes, have specialized adaptations to regulate salt levels in their bodies when growing in saline environments. Which of the following is a common adaptation for salt excretion in some halophytes? Increased water absorption Production of more chlorophyll Presence of salt glands Rapid leaf shedding throughout the year
2 The maintenance of turgor pressure within plant cells is essential for structural support and various physiological processes. This is primarily achieved through the process of: Diffusion Active transport Osmosis Plasmolysis
3 Stomata play a crucial role in homeostasis by regulating the exchange of gases and the loss of water. Which cells primarily control the opening and closing of stomata? Epidermal cells Palisade cells Guard cells Xylem cells
4 Which of the following is a common method used by plants to excrete metabolic waste products, particularly when they accumulate in older, senescent parts? Active transport into the soil Storing them in vacuoles and shedding leaves Converting them into useful nutrients Releasing them through root hairs
5 What is the primary process by which plants regulate their internal temperature and water balance by losing water vapor from their aerial parts? Photosynthesis Respiration Transpiration Absorption
6 A kidney transplant involves replacing a diseased kidney with a healthy kidney from a donor. What is a major challenge after a kidney transplant? High risk of developing kidney stones in the new kidney Need for lifelong immunosuppressant medication Inability to consume water Complete recovery of natural kidney function without medication
7 Which of these is a common symptom of chronic kidney disease? Sudden increase in appetite Clear and frequent urination Swelling in the ankles, feet, or legs Unexplained weight gain
8 What is the primary function of dialysis in patients with kidney failure? To stimulate kidney regeneration To filter waste products and excess fluid from the blood To increase blood pressure To produce essential hormones
9 The accumulation of urea and other nitrogenous waste products in the blood due to kidney failure is known as: Glycosuria Uremia Hematuria Albuminuria
10 Which of the following is NOT a common cause of kidney stones (renal calculi)? Excessive intake of calcium-rich foods Dehydration High levels of uric acid in the blood Regular physical exercise
11 What is the main role of the urinary bladder? To produce urine To store urine temporarily before urination To filter blood To transport urine from the body
12 The process by which essential substances like glucose, amino acids, and some salts are reabsorbed from the filtrate back into the blood in the renal tubules is called: Filtration Secretion Reabsorption Excretion
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