Q. What is the effect of parathyroid hormone (PTH)? (2019)
A.
Increase calcium levels in blood
B.
Decrease calcium levels in blood
C.
Increase phosphate levels
D.
Decrease phosphate levels
Solution
Parathyroid hormone (PTH) increases calcium levels in the blood by stimulating the release of calcium from bones and increasing calcium absorption in the intestines.
Correct Answer:
A
— Increase calcium levels in blood
Q. What is the function of parathyroid hormone (PTH)? (2022)
A.
Increase calcium levels in the blood
B.
Decrease calcium levels in the blood
C.
Regulate blood sugar
D.
Stimulate red blood cell production
Solution
Parathyroid hormone (PTH) increases calcium levels in the blood by stimulating the release of calcium from bones and increasing calcium absorption in the intestines.
Correct Answer:
A
— Increase calcium levels in the blood
Q. What is the primary effect of parathyroid hormone (PTH)? (2019)
A.
Increase calcium levels in blood
B.
Decrease calcium levels in blood
C.
Regulate metabolism
D.
Stimulate growth
Solution
Parathyroid hormone (PTH) increases calcium levels in the blood by promoting the release of calcium from bones and increasing absorption in the intestines.
Correct Answer:
A
— Increase calcium levels in blood
Q. What is the primary function of parathyroid hormone? (2023)
A.
Increase calcium levels in blood
B.
Decrease calcium levels in blood
C.
Regulate metabolism
D.
Stimulate growth
Solution
Parathyroid hormone (PTH) increases calcium levels in the blood by stimulating the release of calcium from bones and increasing calcium absorption in the intestines.
Correct Answer:
A
— Increase calcium levels in blood
Q. What is the role of parathyroid hormone (PTH)? (2020)
A.
Increase blood calcium levels
B.
Decrease blood calcium levels
C.
Regulate blood sugar
D.
Stimulate metabolism
Solution
Parathyroid hormone (PTH) increases blood calcium levels by stimulating the release of calcium from bones and increasing calcium absorption in the intestines.
Q. Which hormone is involved in the regulation of calcium levels in the blood? (2023)
A.
Calcitonin
B.
Parathyroid hormone
C.
Insulin
D.
Glucagon
Solution
Parathyroid hormone (PTH) is responsible for increasing blood calcium levels by promoting calcium release from bones and increasing calcium absorption in the intestines.
Human Physiology - Chemical Coordination MCQ & Objective Questions
Understanding "Human Physiology - Chemical Coordination" is crucial for students preparing for various school and competitive exams. This topic covers the intricate ways in which hormones and chemical signals regulate bodily functions, making it a significant area of study. Practicing MCQs and objective questions on this subject not only enhances concept clarity but also boosts your chances of scoring better in exams. Engaging with practice questions helps reinforce your knowledge and prepares you for important questions that may appear in your assessments.
What You Will Practise Here
Overview of the endocrine system and its components
Functions and types of hormones
Mechanisms of hormone action and signal transduction
Key glands involved in chemical coordination (e.g., pituitary, thyroid, adrenal)
Feedback mechanisms in hormone regulation
Common disorders related to hormonal imbalances
Diagrams illustrating hormone pathways and interactions
Exam Relevance
The topic of "Human Physiology - Chemical Coordination" is frequently featured in CBSE, State Boards, NEET, and JEE exams. Students can expect questions that assess their understanding of hormone functions, regulatory mechanisms, and the physiological impact of various hormones. Common question patterns include multiple-choice questions that require students to identify hormone functions, match glands with their respective hormones, and explain feedback loops.
Common Mistakes Students Make
Confusing the functions of different hormones and their target organs.
Misunderstanding the concept of negative and positive feedback mechanisms.
Overlooking the role of the hypothalamus in regulating the endocrine system.
Failing to connect hormonal actions with physiological responses in the body.
FAQs
Question: What are the main glands involved in chemical coordination? Answer: The main glands include the pituitary, thyroid, adrenal, pancreas, and gonads, each producing specific hormones that regulate various bodily functions.
Question: How do hormones exert their effects on target cells? Answer: Hormones bind to specific receptors on target cells, triggering a series of biochemical reactions that lead to a physiological response.
Now is the time to solidify your understanding of "Human Physiology - Chemical Coordination." Dive into our practice MCQs and test your knowledge to ensure you are well-prepared for your exams. Remember, consistent practice is key to mastering this essential topic!
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