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Biology
11th -
12thgrade
6.6 IB Homeostatic Hormones & Blood Glucose Level Control
30 questions
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- 1. Multiple Choice
The pancreas produces _____ when your blood sugar level is high.
Thyroxin
Melatonin
Glucagon
Insulin
- 2. Multiple Choice
Thyroxin regulates _______.
sleep patterns
metabolism
blood sugars
sperm production
- 3. Multiple Choice
What is glucagon's major role in the body?
to raise blood sugar
to lower blood sugar
to increase the rate of cellular respiration
to convert glucose into glycogen
- 4. Multiple Choice
Which hormone is involved in biological clock and seasonal activities?
insulin
melatonin
leptin
thyroxin
- 5. Multiple Choice
Leptin is secreted by......
cells in the adipose tissue
cells in the hypothalamus
cells in the pancreas
cells in the thyroid
- 6. Multiple Choice
Which hormone is associated with jet lag?
insulin
thyroxin
melatonin
leptin
- 7. Multiple Choice
Where is an excess in blood glucose levels detected?
pancreas
brain
hypothalamus
pineal gland
- 8. Multiple Choice
Which are TRUE about insulin? (2)
it is secreted by alpha (α) cells in the pancreas
it is secreted by beta (β) cells in the pancreas
it causes an uptake of glucose into cells all over the body
it causes enzymes to convert glycogen and amino acids into glucose
- 9. Multiple Choice
Which are true about glucagon? (2)
it is secreted by α cells in the pancreas
it is secreted by β cells in the pancreas
it causes an uptake of glucose into cells all over the body
it causes liver enzymes to convert glycogen into glucose
- 10. Multiple Choice
Glucagon is broken down into glucose by insulin.
- 11. Multiple Choice
What characterizes Type I diabetes?
It can be controlled by diet alone
Risk factors such as obesity increase its frequency
The alpha cells of the pancreas are destroyed, usually during adulthood
The beta cells of the pancreas are destroyed, usually during childhood
- 12. Multiple ChoiceHomeostasisallows for a wildly fluctuating internal environmentis impossible in vertebratesis the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulationis the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation
- 13. Multiple Choicea body system that controls and coordinates all body activities through electric impulses/messages between brain, spinal cord and nerves.endocrine systemnervous systemnerveneuron
- 14. Multiple ChoiceThe process of childbirth is an example of:negative feedback looppositive feedback loop
- 15. Multiple Choice
Which endocrine glands are found in the brain?
Pituitary
Hypothalamus
Thryroid
Adrenal
Pineal
- 16. Multiple Choice
Identify this gland.
Adrenal
Thyroid
Pancreas
Testes
- 17. Multiple Choice
This hormone regulates water concentration.
Insulin
Glucagon
Oxytocin
Antidiuretic hormone
- 18. Multiple ChoiceCauses increase in rate of cell growth and sizeInsulinglucagonMelatoninGrowth hormone
- 19. Multiple Choice
Which gland produces GH Releasing Hormone?
hypothalamus
pituitary gland
thyroid
parathyroid
- 20. Multiple Choice
Which sentences are correct?
Leptin resistance can lead to obesity
Leptin target cells are in the hypothalamus
Starvation leads to less leptin production
Leptin intake can help obesity in humans
- 21. Multiple Choice
Tick all that are regulated by negative feedback
Control of thirst
Blood glucose level control
Control of labour and delivery
Control of body temperature
Control of hunger
- 22. Multiple Choice
Which system produces chemical messengers known as hormones?
nervous system
immune system
endocrine system
cardiovascular system
- 23. Multiple Choice
Water-soluble hormones, such as proteins and peptide hormones, activate target cells using ________.
direct gene activation
the second-messenger system
steroid hormone action
diffusion
- 24. Multiple Choice
Which of the following are true of secondary messengers?
I. they trigger a cascade of chemical reactions within the cell
II. they usually inhibit or activate enzymes
III. an example is cyclic AMP (cAMP)
I and II only
I and III only
II and III only
I, II and III
- 25. Multiple Choice
Which of the following is/are true of iodine?
I. it is needed to produce thyroxin
II. its deficiency will cause the thyroid gland to shrink
III. its deficiency during pregnancy can cause children to be born with brain damage
I and II only
I and III only
II and III only
I, II and III
- 26. Multiple Choice
Does the following apply to steroid hormones only, peptide hormones only, both or none?
"lipid-based".
steroid hormones
peptide hormones
both
none
- 27. Multiple Choice
Does the following apply to steroid hormones only, peptide hormones only, both or none?
"Travel through the blood".
steroid hormones
peptide hormones
both
none
- 28. Multiple Choice
Does the following apply to steroid hormones only, peptide hormones only, both or none?
"Enter the cell".
steroid hormones
peptide hormones
both
none
- 29. Multiple Choice
Does the following apply to steroid hormones only, peptide hormones only, both or none?
"Hormone-receptor complex triggers secondary messengers".
steroid hormones
peptide hormones
both
none
- 30. Multiple Choice
Does the following apply to steroid hormones only, peptide hormones only, both or none?
"Attaches to a receptor in the cytoplasm".
steroid hormones
peptide hormones
both
none
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