MDCAT Homeostasis MCQs
Customize your practice drill: select target topics, configure your question limit (up to 180 MCQs per test), and choose your mode.
Total Topics
3
Selected Topics
3
Available MCQs
614
Question Limit
Up to 180
Select Topics to Practice
Questions will be drawn only from checked topics.
Test Configuration
Configure question count (limit 180) and testing mode.
Selected topics have 614 total questions. Test will draw 50 shuffled MCQs.
Sample Homeostasis MCQs with answers
Try these questions, then open the answer to check your reasoning. Use the quiz above for more topics and a complete review.
Kidney Function
1. Removal of proximal convoluted tubule from the nephron will result in:
- A. No change in quality and quantity of urine
- B. No urine formation
- C. More diluted urine
- D. More concentrated urine
View answer and explanation
Answer: C. More diluted urine
The proximal convoluted tubule reabsorbs about two-thirds of the glomerular filtrate, including most water, glucose and salts, back into the blood. If it were removed, far less water would be reclaimed and the urine would be larger in volume and more diluted. The marked answer is therefore more diluted urine, so C is correct.
Kidney Function
2. Tubular secretion helps regulate body chemistry by moving selected substances from:
- A. Peritubular blood into the nephron tubule
- B. The bladder into the ureter
- C. Bowman's capsule into the glomerulus
- D. The urethra into the kidney
View answer and explanation
Answer: A. Peritubular blood into the nephron tubule
Secretion transfers substances such as excess ions or wastes from blood to tubular fluid.
Kidney Function
3. The thermoregulatory center of the human body, acting as a thermostat, is located in the:
- A. Cerebellum
- B. Medulla oblongata
- C. Cerebral cortex
- D. Hypothalamus
View answer and explanation
Answer: D. Hypothalamus
The thermoregulatory centre in the human body is located in the hypothalamus, which acts as a thermostat, detecting the temperature of the blood passing through it.
About this unit
MDCAT Homeostasis — Unit 15
614 practice MCQs covering Kidney Function, Thermoregulation, Excretion. Select custom topics and sit tailored tests up to 180 questions per drill.
Common questions about Homeostasis practice
How many Homeostasis MCQs are available on DIFF. MDCAT?
The current Homeostasis question bank contains 614 practice MCQs across 3 topics. This is the bank size, not the length of one test. Choose your topics and a question count from 1 to 180, limited by the questions available in those topics.
Which topics does the Homeostasis quiz cover?
The selectable topics are Kidney Function, Thermoregulation, Excretion. Use Select all for a broad chapter drill, Clear to start a focused selection, or choose individual topics. Questions are drawn from your chosen topics, so you can target a weak concept before returning to a wider test.
How do I build a custom Homeostasis test?
Open the chapter builder, select one or more topics, enter your question count, and choose Tutor Mode or Timed Exam. The available-question total updates with your selection. Start Test generates a shuffled drill; you do not have to follow a fixed Quiz 1 or Quiz 2 sequence.
What is the difference between Tutor Mode and Timed Exam?
Tutor Mode gives feedback and an explanation after you choose an option, and you can change or clear that choice. Timed Exam runs a countdown and keeps explanations hidden until submission. Both modes let you move between questions, use the paper map, and submit for a complete review.
How do I review and download my Homeostasis quiz?
Select Submit Quiz, then Submit & View Explanations. The review includes every question in your test, all options, your selection, the marked correct answer when a key is available, and the explanation. Download PDF saves a paginated review; Download Review saves an HTML copy you can open in a browser. The review also includes DIFF. MDCAT community links.
How should I use Homeostasis MCQs to improve?
Start with a short tutor drill on one of these topics: Kidney Function, Thermoregulation, Excretion. Read the explanation for incorrect and uncertain answers, revise the relevant textbook section, and retry before taking a timed drill. Compare your reasoning with the answer key rather than memorising the option letter.