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Biology & Geology (STEM)

Chapter 2 - Hormonal Coordination in Living Organisms

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Chapter 3 - Reproduction in Living Organisms

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Chapter 4 - Immunity in Living Organisms

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Chapter 5 - Molecular Biology - DNA Structure and Function

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Chapter 6 - Molecular Biology - RNA, Protein Synthesis and Genetic Engineering

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Quiz

Lesson 2: Adrenal Glands, The Pancreas and Reproductive Gonads — Picture questions (exam style)

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1.
The figure shows a hormonal axis with negative feedback (−). What happens to the hormone levels after: large doses of thyroxine?
The figure shows a hormonal axis with negative feedback (−). What happens to the hormone levels after: large doses of thyroxine?
TRH ↓, TSH ↑, thyroxine ↑
TRH ↑, TSH ↓, thyroxine ↑
TRH ↓, TSH ↓, thyroxine ↑
TRH ↓, TSH ↓, thyroxine ↓
2.
The figure shows a hormonal axis with negative feedback (−). What happens to the hormone levels after: pituitary tumour over-secreting LH?
The figure shows a hormonal axis with negative feedback (−). What happens to the hormone levels after: pituitary tumour over-secreting LH?
GnRH ↑, LH ↓, testosterone ↓
GnRH ↓, LH ↓, testosterone ↓
GnRH ↑, LH ↑, testosterone ↓
GnRH ↓, LH ↑, testosterone ↑
3.
The figure shows a hormonal axis with negative feedback (−). What happens to the hormone levels after: removal of the pituitary?
The figure shows a hormonal axis with negative feedback (−). What happens to the hormone levels after: removal of the pituitary?
CRH ↓, ACTH ↑, cortisol ↑
CRH ↓, ACTH ↑, cortisol ↓
CRH ↑, ACTH ↓, cortisol ↓
CRH ↑, ACTH ↑, cortisol ↑
4.
What replaces (?) in the table?
What replaces (?) in the table?
ovary
thyroid
posterior pituitary
anterior pituitary
5.
What replaces (?) in the table?
What replaces (?) in the table?
adrenal medulla
pancreas (beta cells)
posterior pituitary
ovary
6.
What replaces (?) in the table?
What replaces (?) in the table?
excess: exophthalmic goitre
male sexual characters
deficiency in adults: myxoedema
raises blood sugar in emergencies
7.
What replaces (?) in the table?
What replaces (?) in the table?
aldosterone
adrenaline
insulin
parathormone
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