Test
32: Hormones Basic Structure and Function
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (8)
1Which of these is not a function of the endocrine system?
- ARegulation of the internal environment
- BControl of energy metabolism
- CControl of growth
- DControl of reproduction and development
- EControl of blood circulation
2Hormones are [blank_start]chemical messengers[blank_end] carried in the [blank_start]blood[blank_end], secreted by [blank_start]endocrine gland cells[blank_end]. They travel to all parts of the body but only affect [blank_start]target cells[blank_end].
- Achemical messengers
- Bblood
- Cendocrine gland cells
- Dtarget cells
3Peptides are chains of amino acids which are soluble in water.
- AVerdadero
- BFalso
4Choose the correct statements about water-soluble hormones.
- APeptides are the most common kind of water soluble hormones.
- BCatecholamines like noradrenaline and adrenaline are the less common type of water soluble hormones.
- CWater-soluble hormones are made and released immediately via exocytosis.
- DThey travel in the blood dissolved.
- ETheir receptors are intracellular.
5Choose the incorrect statement about lipid-soluble hormones.
- AThey are insoluble in water.
- BSteroids and thyroid hormones are lipid-soluble hormones.
- CThey are transported bound to a carrier protein in the blood.
- DTheir receptors are intracellular.
- EThyroid hormones are not stored, but steroids are stored.
6Steroids are made from modifying the base steroid cholesterol.
- AVerdadero
- BFalso
7In the cellular response to receptor activation by water soluble hormones, the [blank_start]binding[blank_end] of the hormone to the membrane receptor activates an [blank_start]associated protein[blank_end]. There is typically an [blank_start]enzyme[blank_end] next in the transfer of information which then produces a [blank_start]secondary messenger[blank_end]. [blank_start]Secondary messengers[blank_end] can go on to activate more proteins and/or enzymes in a chain until the [blank_start]cell response[blank_end] is produced, which can take anywhere from [blank_start]milliseconds to minutes[blank_end].
- Abinding
- Bassociated protein
- Cenzyme
- Dsecondary messenger
- ESecondary messengers
- Fcell response
- Gmilliseconds to minutes
- Hminutes to hours
8Label the steps of cellular responses to lipid-soluble hormones from first (1) to last (7).
[blank_start]3[blank_end]. Hormone binds to intracellular receptor.
[blank_start]7[blank_end]. New protein mediates cell's specific response (hours - days)
[blank_start]4[blank_end]. Hormone-receptor complex acts as a specific transcription factor.
[blank_start]2[blank_end]. Hormone diffuses across membrane.
[blank_start]5[blank_end]. New mRNA is generated.
[blank_start]1[blank_end]. Lipid soluble hormone dissociates from carrier protein.
[blank_start]6[blank_end]. New protein is generated by translation of mRNA- A1
- B2
- C3
- D4
- E5
- F6
- G7
- H1
- I2
- J3
- K4
- L5
- M6
- N1
- O2
- P3
- Q4
- R5
- S6
- T7
- U7
- V1
- W2
- X3
- Y4
- Z5
- AA6
- AB7
- AC1
- AD2
- AE3
- AF4
- AG5
- AH6
- AI7
- AJ1
- AK2
- AL3
- AM4
- AN5
- AO6
- AP7
- AQ1
- AR2
- AS3
- AT4
- AU5
- AV6
- AW7
Información
- Descripción
- • Describe the function of the endocrine system in maintaining homeostasis and provide examples • Define the terms endocrine gland, hormone, receptor and target cell. • Describe the mechanism of hormone action for peptide hormones and catecholamines (water-soluble hormones). • Describe the mechanism of hormone action for steroid hormones and thyroid hormones (lipid-soluble hormones). •Be able to provide examples of hormonal feedback control.
- Autor
- Mer Scott
- Idioma
- English
- Visitas
- 38
- Etiquetas
- Valoración
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