BIO 2 Module 4 – Portage Learning Verified Questions &
Answers, Study Guide & Practice Quiz (BIOD 102)
This document contains:
✓ BIO 2 Module 4 Portage Learning answers
✓ BIOD 102 Module 4 quiz answers
✓ BIO 2 Module 4 study guide
✓ Portage Learning BIO 2 Module 4 practice test
✓ BIOD 102 Module 4 biology notes
,1. What is a consequence of blood calcium levels being dangerously
elevated?: The crystallization of tissues
2. What is the set point for blood calcium levels?: 10 mg/mL
3. What are the four main parts of a negative feedback loop? And what would they
be for calcium?: set point: 10/mg per ml
stimulus: decreased calcium sensor:
calcium sensing receptors
response: PTH is released and causes more absorption
4. Describe the mechanisms of calcitonin and how blood
calcium is increased:: Calcitonin is released and binds to osteoclasts to prevent breakdown, then binds to renal tubes to
increase excretion.
5. What is the cause of hypercalcemia in adults?: excess PTH
6. Islets of Langerhans are composed of which cell types? What does each one do?:
Alpha/Beta
Alpha is responsible for glucagon release Beta is
responsible for insulin release
7. True or False. Insulin is the main source of energy for almost all body
tissues.: False
8. True or False. Beta cells not only secret insulin to lower blood glucose,
, but also serve as the sensor in monitoring blood glucose concentration.: True
9. Fill in the blank. Excess glucose is first stored as glycogen in the
1 and in skeletal muscle. Next, it will be stored within
adipose tissue as 2 .: Liver
Fat/triglycerides
10. The process of stored glycogen being converted to glucose and released into
the blood is called:: Glycogenolysis
Answers, Study Guide & Practice Quiz (BIOD 102)
This document contains:
✓ BIO 2 Module 4 Portage Learning answers
✓ BIOD 102 Module 4 quiz answers
✓ BIO 2 Module 4 study guide
✓ Portage Learning BIO 2 Module 4 practice test
✓ BIOD 102 Module 4 biology notes
,1. What is a consequence of blood calcium levels being dangerously
elevated?: The crystallization of tissues
2. What is the set point for blood calcium levels?: 10 mg/mL
3. What are the four main parts of a negative feedback loop? And what would they
be for calcium?: set point: 10/mg per ml
stimulus: decreased calcium sensor:
calcium sensing receptors
response: PTH is released and causes more absorption
4. Describe the mechanisms of calcitonin and how blood
calcium is increased:: Calcitonin is released and binds to osteoclasts to prevent breakdown, then binds to renal tubes to
increase excretion.
5. What is the cause of hypercalcemia in adults?: excess PTH
6. Islets of Langerhans are composed of which cell types? What does each one do?:
Alpha/Beta
Alpha is responsible for glucagon release Beta is
responsible for insulin release
7. True or False. Insulin is the main source of energy for almost all body
tissues.: False
8. True or False. Beta cells not only secret insulin to lower blood glucose,
, but also serve as the sensor in monitoring blood glucose concentration.: True
9. Fill in the blank. Excess glucose is first stored as glycogen in the
1 and in skeletal muscle. Next, it will be stored within
adipose tissue as 2 .: Liver
Fat/triglycerides
10. The process of stored glycogen being converted to glucose and released into
the blood is called:: Glycogenolysis
