2025 NEW BIO 201L Lab 9 The Endocrine System Straighterline
Student Name:
Access Code (located on the lid of your lab kit):
Lab Report Format Expectations
Utilize college level grammar and professional formatting when completing this
worksheet. Submissions without proper formatting, all required photos or
sufficient responses will be rejected. Pre-lab Questions
1. What is the function of the endocrine system?
The endocrine system coordinates the body’s internal environment by
releasing hormones into the bloodstream, which regulate metabolism,
growth, mood, and other physiological activities.
2. Research two types of hormones and describe the mode of action for each.
Steroid hormones like cortisol pass through cell membranes and bind to
receptors inside the cell, directly influencing gene expression. Peptide
hormones like insulin bind to
surface receptors, triggering a chain reaction within the cell.
3. Which gland is both endocrine and exocrine?
The pancreas functions as both—it releases hormones like insulin into the
blood (endocrine) and digestive enzymes through ducts (exocrine).
4. Which hormones control the fight or flight response?
Adrenaline and noradrenaline, secreted by the adrenal medulla, prepare the
body for rapid action in stressful situations.
, 5. What is type 1 diabetes and what is the treatment for this disease?
Type 1 diabetes is an autoimmune condition where the immune system
destroys
insulin-producing cells in the pancreas. Treatment involves lifelong insulin
therapy and regular monitoring of blood sugar levels.
Student Name:
Access Code (located on the lid of your lab kit):
Lab Report Format Expectations
Utilize college level grammar and professional formatting when completing this
worksheet. Submissions without proper formatting, all required photos or
sufficient responses will be rejected. Pre-lab Questions
1. What is the function of the endocrine system?
The endocrine system coordinates the body’s internal environment by
releasing hormones into the bloodstream, which regulate metabolism,
growth, mood, and other physiological activities.
2. Research two types of hormones and describe the mode of action for each.
Steroid hormones like cortisol pass through cell membranes and bind to
receptors inside the cell, directly influencing gene expression. Peptide
hormones like insulin bind to
surface receptors, triggering a chain reaction within the cell.
3. Which gland is both endocrine and exocrine?
The pancreas functions as both—it releases hormones like insulin into the
blood (endocrine) and digestive enzymes through ducts (exocrine).
4. Which hormones control the fight or flight response?
Adrenaline and noradrenaline, secreted by the adrenal medulla, prepare the
body for rapid action in stressful situations.
, 5. What is type 1 diabetes and what is the treatment for this disease?
Type 1 diabetes is an autoimmune condition where the immune system
destroys
insulin-producing cells in the pancreas. Treatment involves lifelong insulin
therapy and regular monitoring of blood sugar levels.
