Homeostasis

Biology ⇒ Human Biology

Homeostasis starts at 8 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Homeostasis. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 12

Describe how the body responds to a decrease in external temperature to maintain homeostasis.

Describe how the kidneys contribute to homeostasis.

Describe the role of baroreceptors in maintaining blood pressure homeostasis.

Describe the role of insulin in blood glucose regulation.

Describe the role of the hypothalamus in thermoregulation.

Describe the role of the skin in maintaining homeostasis.

Explain how sweating helps maintain homeostasis during exercise.

A patient has a blood glucose level of 180 mg/dL after a meal. Which hormone will be secreted to restore homeostasis? (1) Glucagon (2) Insulin (3) ADH (4) Cortisol

Which feedback mechanism amplifies a change instead of reversing it? (1) Negative feedback (2) Positive feedback (3) Neutral feedback (4) None of the above

Which of the following best defines homeostasis? (1) The process by which organisms maintain a stable internal environment (2) The process of breaking down food for energy (3) The process of cell division (4) The process of responding to external stimuli

Which of the following best describes osmoregulation? (1) Regulation of blood pressure (2) Regulation of water and salt balance (3) Regulation of body temperature (4) Regulation of hormone levels

Fill in the blank: The hormone responsible for increasing water reabsorption in the kidneys is __________.

Fill in the blank: The main function of buffers in the blood is to maintain __________.

Fill in the blank: The main function of the hormone aldosterone is to regulate __________ balance in the body.

Fill in the blank: The process by which the body increases blood glucose levels when they are too low is called __________.

True or False: Homeostasis is only necessary for multicellular organisms.

True or False: Homeostasis only involves the regulation of body temperature.

True or False: Homeostatic mechanisms operate at both the cellular and organismal levels.

True or False: The hypothalamus acts as a control center in many homeostatic mechanisms.