Free Homeostasis MCQs with Answers
698 Homeostasis MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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Read the Homeostasis notesFree MDCAT chapter notes with key terms698 questions · page 26 of 35
- A. ADH
- B. Aldosterone
- C. Concentration of Filtrate
- D. Vasopressin
Explanation: Aldosterone hormone is secreted from adrenal cortex and acts upon the ascending limb of the loop of Henle to promote reabsorption of…
Correct answer: Aldosterone- A. Availability of water
- B. Availability of sodium
- C. Production of aldosterone
- D. Counter current multiplier
Explanation: When sufficient water is available diluted urine is produced and when water is deficient urine is concentrated.
Correct answer: Availability of water- A. Infectious Diseases
- B. Metabolic Diseases
- C. Genetic Disease
- D. Congenital Diseases
Explanation: Metabolic diseases result in formation of kidney stones.
Correct answer: Metabolic Diseases- A. Hyperoxaluria
- B. Hypercalcaemia
- C. Hyperuricemia
- D. Metabolic disease
Explanation: It is high level of oxalates in blood which cause calcium oxalate type stones.
Correct answer: Hyperoxaluria- A. 10%
- B. 15%
- C. 70%
- D. 5%
Explanation: The correct option is 5%. Kidney stones caused by hypercalcemia account for approximately 5% of the total kidney stones.Hypercalcemia…
Correct answer: 5%- A. 10%
- B. 15%
- C. 70%
- D. 5%
Explanation: The correct option is 15% because kidney stones caused by hyperoxaluria account for approximately 15% of all kidney stones.
Correct answer: 15%- A. 10%
- B. 15%
- C. 70%
- D. 5%
Explanation: As per statistical data given in textbook. The correct option is 10%. Kidney stones caused by hyperuricemia account for approximately 10%…
Correct answer: 10%- A. Stone of calcium phosphate
- B. Stone of calcium oxalate
- C. Stone of uric acid
- D. Other diseases
Explanation: Hypercalcemia is caused by some metabolic, dietary or hormonal disorder.
Correct answer: Other diseases- A. Urea formation
- B. Urination
- C. Urine formation
- D. Defecation
Explanation: Stone formation occur during urine formation.
Correct answer: Urine formation- A. Kidney
- B. Gall bladder
- C. Ureter
- D. Kidney, Ureter and gall bladder
Explanation: Stones formed in kidney, ureter and gall bladder can be broken down by radiations.
Correct answer: Kidney, Ureter and gall bladder- A. The only way to carry out lithotripsy
- B. One of the several ways to carry out lithotripsy
- C. The most common way to carry out lithotripsy
- D. A way likely
Explanation: Others are intracorporeal shockwave lithotripsy, laser lithotripsy electrohydraulic lithotripsy, mechanical lithotripsy and ultrasonic…
Correct answer: One of the several ways to carry out lithotripsy- A. Glomemlus
- B. Convoluted Tubule
- C. Loop of Henle
- D. Bowman's Capsule
Explanation: As glomerulus plays a vital role in filtration of wastes (particularly nitrogenous wastes).
Correct answer: Glomemlus- A. Homeostasis
- B. Thermoregulation
- C. Excretion
- D. Feedback mechanism
Explanation: In these processes, there is an inverse effector's response to control the change.
Correct answer: Feedback mechanism- A. Homeostasis
- B. Thermoregulation
- C. Osmoregulation
- D. Excretion
Explanation: Maintenance of inner osmotic state is the basic responsibility of osmoregulatory homeostasis, however excretory homeostasis also plays a…
Correct answer: Osmoregulation- A. Adaptation
- B. Homeostasis
- C. Evolution
- D. Reproduction
Explanation: Homeostasis refers to the ability of an organism to maintain a stable internal environment despite changes in the external surroundings.
Correct answer: Homeostasis- A. Hypertonic solution
- B. Hypotonic solution
- C. Isotonic solution
- D. None of these
Explanation: "The explanation for this question will be added soon!".
Correct answer: Hypertonic solution- A. It is iron-containing protein pigment
- B. It occurs in muscle fibres
- C. It also stores some oxygen
- D. All of these
Explanation: "The explanation for this question will be added soon!".
Correct answer: All of these- A. Metanephros
- B. Opisthonephros
- C. Pronephros
- D. Mesonephros
Explanation: The mesonephros kidney is present in both the adult as well as the embryo of the frog.
Correct answer: Mesonephros519. Homeostasis is the _
- A. Tendency to change with change in environment
- B. Tendency to resist change
- C. Disturbance in regulatory control
- D. Plants and animal extracts used in homeopathy.
Explanation: Homoeostasis is the regulation, by an organism, of the chemical composition of its body fluids and other aspects of its internal…
Correct answer: Tendency to resist change- A. There will be no urine formation.
- B. There will be hardly any change in the quality and quantity of urine formed
- C. The urine will be more concentrated
- D. The urine will be more dilute
Explanation: Reabsorption is a process by which useful constituents of the glomerular filtrate are returned into the bloodstream.
Correct answer: The urine will be more dilute