Marks Chapter 11 Cell Signaling By Chemical Messengers Quiz

17 Questions | By 074604g | Last updated: Mar 18, 2022 | Total Attempts: 362

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A review quiz of marks chapter 11

Questions and Answers

1.

The chemical messengers of the endocrine system are called?
- A.
  
  Endotransmitters
- B.
  
  Cytokines
- C.
  
  Eicosanoids
- D.
  
  Hormones
2.

Autocrine transmitters operate on the same cell or nearby cells of the same type
- A.
  
  True
- B.
  
  False
3.

Which type of receptors travel to nearby cells?
- A.
  
  Endocrine
- B.
  
  Paracrine
- C.
  
  Hypocrine
- D.
  
  Autocrine
4.

Acetylcholine release is triggered by the influx of what into the cell?
- A.
  
  Ca^2+
- B.
  
  Na+
- C.
  
  K+
- D.
  
  Ca+
5.

Aa nicotinic acetlycholine receptor has how many TOTAL membrane-spanning helical regions?
- A.
  
  20
- B.
  
  12
- C.
  
  4
- D.
  
  5
6.

When acetylcholine binds to a nicotinc acetlycholine recepter the channel allows K+ ions to diffuse into the cell and Na+ ions to diffuse out
- A.
  
  True
- B.
  
  False
7.

Many endocrine hormones also exhibit paracrine or autocrine actions
- A.
  
  True
- B.
  
  False
8.

Thyroid hormones are derived from what amino acid?
- A.
  
  Tryptophan
- B.
  
  Tyrosine
- C.
  
  Threonine
- D.
  
  Glutamate
9.

Some hormones are also neurotransmitters
- A.
  
  True
- B.
  
  False
10.

Epinephrine is a
- A.
  
  Polypeptide hormone
- B.
  
  Catecholamine
- C.
  
  Thyroid hormone
- D.
  
  Steroid hormone
11.

All eicosanoids are derived from
- A.
  
  Arachidonic acid
- B.
  
  Glutamic acid
- C.
  
  Tyrosine
- D.
  
  Glutamate
12.

Messengers that use intracellular receptors must be
- A.
  
  Hydrophilic
- B.
  
  Hydrophobic
- C.
  
  Small molecules
- D.
  
  Macromolecules
13.

The steroid hormone/thyroid hormone superfamily of receptors resides primarily in the cytoplasm
- A.
  
  True
- B.
  
  False
14.

The Raf protein is also called
- A.
  
  Ras
- B.
  
  Grb2
- C.
  
  Son of Sevenless
- D.
  
  MAPKKK
15.

A G-protein receptor is also a
- A.
  
  Tyrosine Kinase receptor
- B.
  
  Heptahelical receptor
- C.
  
  JAK-STAT receptor
- D.
  
  Serine-threonine receptor
16.

The Insulin Receptor is a
- A.
  
  Tyrosine Kinase receptor
- B.
  
  Heptahelical receptor
- C.
  
  JAK-STAT receptor
- D.
  
  Serine-threonine receptor
17.

Insulin causes the insulin receptor to dimerize
- A.
  
  True
- B.
  
  False

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