...levels of plant hormones that regulate growth....
...levels of two hormones that enhance stem...
...Plant Responses to Hormones The word hormone...
...all multicellular organisms, hormones are chemical signals...
...minute quantities of hormones are necessary to...
...two or more hormones. 1. Research on...
...discovery of plant hormones The concept of...
...stem. 2. Plant hormones help coordinate growth,...
...In general, plant hormones control plant growth...
...of cells. Some hormones also mediate shorter-term...
...classes of plant hormones include auxin, cytokinins,...
...are probably plant hormones as well. Plant...
...as well. Plant hormones tend to be...
...large molecules. Plant hormones are produced at...
...compared to other hormones. It is hormonal...
...balance, rather than hormones acting in isolation,...
...the role of hormones in apical dominance—the...
...of the growth hormones - auxins, cytokinins,...
...or more growth hormones that determines the...
...and the sex hormones of animals. Brassinosteroids...
...brassinosteroids as nonauxin hormones. Joann Chory and...
...brassinosteroids were plant hormones. An Arabidopsis mutant...
...cells. These plant hormones are components of...
...two or more hormones. Whatever combination of...
...one of the hormones responsible for activating...

...of sex steroid hormones and their control...
...and release of hormones from the gonads....
...regulated by gonadotropic hormones secreted by the...
...pituitary. The gonadotropic hormones stimulate the gonads...
...their sex steroid hormones, and these steroid...
...and these steroid hormones, in turn, have...
...of the gonadotropic hormones. This interaction between...
...of the gonadotropic hormones (FSH and LH)...
...The sex steroid hormones (estrogen, progesterone, and...
...of the following hormones is not produced...
...All of these hormones are produced by...
...testosterone and FSH hormones. ___ 54. Spermatozoa...
...of these two hormones raise and fall...
...secretion of gonadotropic hormones from the anterior...
...provided. Choose the hormones from this list:...
...The two placental hormones—human chorionic gonadotropin (hCG)...
...actions of four hormones that are secreted...
...of these two hormones. a. PIH and...
...levels of both hormones are significantly higher...
...interactions among many hormones and their regulation...
...levels of both hormones. The stimulation of...
...feedback control of hormones from the hypothalamus,...
...cycle and the hormones involved. In a...
...the phases and hormones characteristic of the...
...Where are the hormones human chorionic gonadotropin...
...and which four hormones do they mimic?...

...and explain how hormones act on the...
...nutrients, wastes, and hormones) 2. Cellular elements...
...the release of hormones that may suppress...
...the body via hormones. • CORE IDEA:...
...tissues that secrete hormones, chemical signals that...
...make and secrete hormones. 2. Hormones are...
...secrete hormones. 2. Hormones are chemical signals...
...The pancreas secretes hormones and digestive enzymes....
...Other organs secrete hormones but primarily serve...
...wide variety of hormones that regulate many...
...glucose through several hormones f. Adrenal glands...
...cycles. C. How hormones work 1. Hormones...
...hormones work 1. Hormones are stored in...
...Two types of hormones a. Water-soluble hormones...
...hormones a. Water-soluble hormones i. They bind...
...off. b. Fat-soluble hormones i. They diffuse...
...b. Produces two hormones regulating glucose i....
...A series of hormones regulate the formation...
...a surge of hormones produces increasingly strong...
...They contain synthetic hormones that prevent the...
...the ovaries. iii. Hormones are also available...
...helps supply nutrients, hormones, and white blood...
...the secretion of hormones via the pituitary...
...the body via hormones. Adrenal gland HGH...
...this range by hormones. Compare the normal...
...the body via hormones. ? Hormones are...
...via hormones. ? Hormones are produced in...
...feedback involving two hormones. Blood sugar regulation...
...are synchronized by hormones. ??A spike in...
...the body via hormones. ? Normal blood...
...Understanding of Female Hormones to Birth Control....

...Enteroendrocrine cells Secrete hormones into the blood...
...Enteroendocrine cells Secrete hormones Paneth cells Secrete...
...endocrine tissues and hormones Control of Appetite...
...of Appetite Three hormones control appetite by...
...in response to hormones from the gut...
...by nerves and hormones Optimal speed Fast...
...others are stored Hormones control postprandial levels...

...are controlled by hormones, which are regulated...
...environment and, like hormones, are active in...
...eggs and reproductive hormones, and a system...
...sperm and reproductive hormones, accessory glands that...
...tropic and sex hormones regulates mammalian reproduction....
...coordinated actions of hormones from the hypothalamus,...
...(LH). These two hormones regulate gametogenesis directly,...
...The principal sex hormones are steroid hormones:...
...hormones are steroid hormones: in males, androgens,...
...progesterone. The sex hormones regulate gametogenesis directly...
...At puberty, sex hormones in both males...
...of the pituitary hormones, keeping FSH and...
...levels of these hormones rise, they exert...
...effects of these hormones. The pituitary begins...
...ovulation, ovarian steroid hormones stimulate the uterus...
...drop in ovarian hormones as the corpus...
...to stimulation by hormones in the bloodstream,...
...The embryo secretes hormones to control the...
...regulators (prostaglandins) and hormones (estradiol and oxytocin)...
...similar combination of hormones is also available...
...Secretion of sex hormones and sexual function...

... Chapter 45 Hormones and the Endocrine...
...Chemical signaling by hormones is the function...
...throughout the body. Hormones secreted by endocrine...
...the release of hormones, the nervous and...
...function. Concept 45.1 Hormones and other chemical...
...specific response pathways. Hormones and other chemical...
...Endocrine signals, or hormones, are secreted into...
...endocrine glands secrete hormones directly into the...
...into body cavities. Hormones serve a range...
...in the body. Hormones maintain steady-state conditions;...
...development, and reproduction. Hormones coordinate responses to...
...a class of hormones called neurohormones. One...
...three groups of hormones: polypeptides, amines, and...
...amines, and steroid hormones. Polypeptides and many...
...and many amine hormones are water-soluble. Because...
...in lipids, these hormones cannot pass through...
...cell membranes. Steroid hormones, as well as...
...other largely nonpolar hormones such as thyroxine,...
...receptors for steroid hormones was discovered in...
...sensitive to steroid hormones contain internal receptor...
...that bind the hormones. Researchers have since...
...for other steroid hormones and lipid-soluble hormones...
...hormones and lipid-soluble hormones such as thyroxine....
...of radioactive water-soluble hormones to isolated cell...
...receptors for such hormones are located on...
...water-soluble and lipid-soluble hormones. Water-soluble hormones are...
...lipid-soluble hormones. Water-soluble hormones are secreted by...
...Binding of water-soluble hormones to receptors induces...
...gene transcription. Lipid-soluble hormones diffuse out across...
...target cells, lipid-soluble hormones bind to receptors...
...hormone. For lipid-soluble hormones, intracellular receptors perform...
...and other lipid-soluble hormones that are not...
...are not steroid hormones diffuse from the...
...indicate that lipid-soluble hormones can sometimes trigger...
...active investigation. Many hormones have multiple effects....
...multiple effects. Many hormones elicit many different...
...blood flow. Lipid-soluble hormones often exert different...
...more quickly than hormones can. Binding of...
...those elicited by hormones. Several types of...
...Endocrine cells secrete hormones in response to...
...(and many other hormones) involves negative feedback,...
...glucagon are antagonistic hormones that regulate the...
...hormone insulin. Both hormones are secreted into...
...interfere with reproduction. Hormones control the metamorphosis...
...and secretes two hormones made by the...
...to the mouth. Hormones released by the...
...the secretion of hormones by the anterior...
...Several of these hormones have other endocrine...
...pituitary releases two hormones: oxytocin and antidiuretic...
...the hypothalamus, these hormones travel along the...
...secretes many different hormones and is regulated...
...or more specific hormones by the anterior...
...Some anterior pituitary hormones have both a...
...releasing and inhibiting hormones are secreted near...
...Releasing and inhibiting hormones thus have direct...
...gland they control. Hormones from the hypothalamus,...
...Three other tropic hormones are secreted by...
...secretion of steroid hormones by the adrenal...
...cortex. Two nontropic hormones are produced by...
...two very similar hormones derived from the...
...nucleus binds both hormones. Too much or...
...secretion of thyroid hormones, leading to high...
...amount of thyroid hormones is known as...
...levels of these hormones cannot exert negative...
...In vertebrates, thyroid hormones play a variety...
...and maturation. Thyroid hormones control the metamorphosis...
...vertebrates require thyroid hormones for normal functioning...
...treatment with thyroid hormones early in life....
...of childhood. Adrenal hormones coordinate the response...
...medulla produces two hormones: epinephrine (adrenaline) and...
...norepinephrine (noradrenaline). These hormones are members of...
...a class of hormones, the catecholamines, amines...
...acid tyrosine. Both hormones are also neurotransmitters...
...adrenal medulla. These hormones act directly on...
...respiratory systems. These hormones increase heart rate...
...Secretion of these hormones by the adrenal...
...The adrenal medulla hormones act in a...
...simple neurohormone pathway. Hormones from the adrenal...
...and mineralocorticoids. Both hormones help maintain homeostasis...
...use of these hormones can have serious...
...as glucocorticoids. Sex hormones regulate growth, development,...
...of the steroid hormones that function as...
...function as sex hormones. All the steroid...
...All the steroid hormones are synthesized from...
...effect. The sex hormones produced by the...
...are mainly male hormones (androgens), with small...
...amounts of female hormones (estrogens and progestins)...
...of the sex hormones, producing and secreting...
...categories of steroid hormones: androgens, estrogens, and...
...Abuse of these hormones carries many health...

...levels of plant hormones that regulate growth....
...levels of two hormones (auxins and brassinosteroids)...
...Concept 39.2 Plant hormones help coordinate growth,...
...responses to stimuli. Hormones are chemical signals...
...their responses to hormones. Plants don’t have...
...molecules. Some plant hormones act only locally....
...criterion that plant hormones are active at...
...processes. Conversely, multiple hormones may influence a...
...discovery of plant hormones. Plants grow toward...
...a stem. Plant hormones help coordinate growth,...
...classes of plant hormones are auxins, cytokinins,...
...are probably plant hormones as well. Plant...
...as well. Plant hormones tend to be...
...large molecules. Plant hormones are produced at...
...In general, plant hormones control plant growth...
...of cells. Some hormones also mediate shorter-term...
...compared to other hormones. It is hormonal...
...balance, rather than hormones acting in isolation,...
...the role of hormones in apical dominance—the...
...and the sex hormones of animals. Brassinosteroids...
...brassinosteroids are plant hormones. A brassinosteroid-deficient Arabidopsis...
...of the growth hormones—auxins, cytokinins, gibberellins, and...
...or more growth hormones that determines the...
...interactions of many hormones and their signal...
...interaction among three hormones and their signal...
...signals (such as hormones) is necessary for...