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Flashcards in Chapter 7 Deck (21):
1

what are the 3 basic ways hormones act on their cells?

controlling rates of enzymatic activity, controlling transport of ions or molecules, controlling gene expression

2

what are hormones secreted by?

endocrine glands, or isolated endocrine cells

3

how do hormones initiate responses?

By binding to target cell receptors

4

what type are most hormones?

Peptide or Proteins

5

what is the name of the initial hormones that comes off the ribosome?

Preprohormone

6

Preprohormones are cut by the endoplasmic reticulum creating what?

a prohormone

7

what happens in post-translational modification?

a prohormone is cut to make an active hormone

8

why can't peptide hormones enter the cell easily?

they are lipophobic

9

what hormones is derived from cholesterol?

Steroid Hormones

10

what type of hormone is lipophilic?

steroid hormones

11

how are steroid hormones transported through the blood/

carrier molecules

12

what are amino acid hormones created from?

tryptophan, or tyrosine

13

thyroid hormones behave like what type of hormone?

Steroid hormones

14

what part of the pituitary is true endocrine tissue?

anterior pituitary

15

which part of the pituitary secretes nuerohormones?

the posterior pituitary

16

which two nuerohormones come from the posterior pituitary?

Oxytocin and Vasopressin

17

what are the six hormones released by the anterior pituitary?

Prolactin, thyrotropin, adrenocorticotropin, growth hormone, follicle stimulating hormone, luteinizing hormone.

18

What is secretion of anterior pituitary hormones controlled by?

Nuerohormones from the hypothalamus.

19

What are the hormones called that control the secretion of other hormones?

trophic hormones

20

two hormones when combined together have a greater effect are called?

synergistic (synergism)

21

if one hormone can not work without another hormone that is called what?

permissiveness