Homeostasis Practice Quiz 2
Another chance to practice for our quiz & unit test. . . . Do you know your glands, hormones & definitions?
- 1.Which of the following thermoregulatory responses would be considered a strictly behavioural response (not physiological)?
- A.
Shivering on a cold day
- B.
Sweating on a hot day
- C.
Hibernation of some mammals
- D.
Vasodilation of skin capillaries
- E.
Basking by some reptiles
- 2.For steroid hormones, which of these statements does NOT reflect the way they act in our cells?
- A.
They pass directly through the cell membrane since they are cholesterol-based
- B.
They exert their actions directly on a cell's DNA
- C.
Steroid molecules all have a distinct four-ringed aspect to the structure of their molecules.
- D.
Once inside a cell, they must find a mobile receptor
- E.
Only a hormone-receptor complex is able to enter the nucleus.
- 3.Which of the following is NOT a part of a mammalian nephron?
- A.
Glomerulus & Bowman's Capsule
- B.
Loop of Henle
- C.
Pacinian corpuscle
- D.
Distal Convoluted tubule
- E.
Proximal Convoluted tubule
- 4.For peptide hormones, which of the following statements is TRUE about their action?
- A.
Because they're made of amino acids, they readily enter the cell.
- B.
They attach themselves to a molecule of cAMP once they enter
- C.
They split in two, and only one half stimulates the target cell; this is the 'second messenger'
- D.
Their size requires them to bind to an external cell receptor protein.
- E.
Once inside the cell, they attach to a receptor on the nuclear membrane.
- 5.Of the following statements regarding the pancreas, which best describes the overall function of this organ?
- A.
It is both an endocrine & exocrine gland, secreting both hormones & digestive enzymes.
- B.
It produces insulin in its alpha cells, and glucagon in its beta cells.
- C.
It was discovered by Canadian scientists.
- D.
The islets of Langerhans produce its digestive enzymes, while interstitial cells produce the hormones.
- E.
Makes glucose available by breaking down glycogen, which it stores as well.
- 6.The condition in which the thyroid gland swells due to lack of dietary iodine is called:
- A.
Grave's Disease
- B.
Goiter
- C.
Diabetes
- D.
Meniere's Disease
- E.
Glycosemia
- 7.Once calcitonin is released into your blood stream, which of the following will happen?
- A.
Blood calcium will drop
- B.
Osteoclasts will absorb calcium from the blood
- C.
Osteoblasts will absorb calcium from the blood
- D.
Only A & B
- E.
Only A & C
- 8.A tumour in the adrenal medulla will result in which of the following symptoms?
- A.
Hypercalcemia
- B.
Glycosuria
- C.
Low-grade fever
- D.
Increased heart rate & blood pressure
- E.
Osteoporosis
- 9.If your body produced too much ADH, what might be a symptom?
- A.
Very low urine volume & an increase in blood pressure
- B.
Copious amounts of urine & a drop in blood pressure
- C.
Seizures due to high levels of calcium
- D.
A failure of the Renin-Angiotensin-Aldosterone system
- E.
Frequent thirst & urination.
- 10.The actions of FSH in the human body include which of the following?
- A.
Stimulates ovarian granulosa cells to make estrogen.
- B.
Stimulates sertoli cells to enhance sperm maturation.
- C.
Causes release of testosterone in both male & female gonads.
- D.
All of these - A, B, C
- E.
Only A & B
- 11.Because they both 'seek out' reproductive tissues in the body, both FSH & LH are considered which type of hormone?
- A.
Releasing hormone
- B.
Gonadotropic hormone
- C.
Antagonistic hormones
- D.
Osmoregulatory hormones
- E.
Inhibitory hormones
- 12.In the female human body, FSH & LH levels are controlled by a negative feedback from which two hormones?
- A.
Estrogen & Testosterone
- B.
Testosterone & Inhibin
- C.
Prolactin & Oxytocin
- D.
Progesterone & Estrogen
- E.
Prolactin & Progesterone
- 13.Our thirst response is triggered when receptor cells in which organ sense an increase in blood concentration?
- A.
Anterior Pituitary
- B.
Posterior Pituitary
- C.
Hypothalamus
- D.
Nephron
- E.
Stomach
- 14.The process of making glucose available by converting amino acids to glucose is called...
- A.
Glycolysis
- B.
Glycogenolysis
- C.
Gluconation
- D.
Gluconeogenesis
- E.
Glycosemia
- 15.Which of the following is NOT true about how our body controls appetite homeostatically?
- A.
PYY from the small intestine helps suppress appetite
- B.
Ghrelins from the stomach help signal fullness/hunger
- C.
Leptins from fat tissue (adipose cells) help suppress appetite
- D.
Insulin can exert slight appetite suppression, while lowering blood glucose
- E.
Glucagon can influence the brain to stimulate a sensation of hunger.
Related Topics
Featured Quizzes
Back to top