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Discover Biology, 4th Full Edition | StudySpace

Biology in the News

Unit 1
- 1
- 2
- 3
- Interlude A
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 2
- 4
- 5
- 6
- 7
- 8
- 9
- Interlude B
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 3
- 10
- 11
- 12
- 13
- 14
- 15
- Interlude C
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 4
- 16
- 17
- 18
- 19
- Interlude D
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 5
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- Interlude E
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 6
- 31
- 32
- Interlude F
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 7
- 33
- 34
- 35
- 36
- 37
- 38
- Interlude G
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News

Chapter 24

Chapter 24: Animal Hormones

What's News Quizzes

Please read this article, Gene Produces Hormones That Lead to Obesity, and answer the following questions.

1. What is the enzyme that activates several hormones and peptides involved in controlling appetite?

a) Proconvertase 1
b) Insulin
c) Glucagon
d) Melanocortin

2. Researchers showed that mutations in the PCSK1 gene modified the structure of an enzyme resulting in what level of enzyme function?

a) The same function as found in severely obese individuals completely lacking the gene
b) The same function as in individuals with a non-mutated gene
c) An intermediate function in between those lacking the gene and those with a non-mutated gene
d) No correlation in function and mutation

3. This study shows that there is no genetic basis for certain causes of obesity.

a) True
b) False

4. At this point, what treatment is available for individuals with a mutated PCSK1 gene?

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