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What is the difference between tropic and nontropic hormones in terms of their functions and effects on the body?
Tropic hormones stimulate the release of other hormones from endocrine glands, while nontropic hormones directly affect target tissues or organs. Tropic hormones regulate hormone production, while nontropic hormones have direct physiological effects on the body.
Which of the following occurs in situations where more than one hormone produces the same effects at the target cell and their combined effects are amplified?
Synergism occurs when two or more hormones work together to produce an effect that is greater than the sum of their individual effects at the target cell. This amplification of the combined effects helps to enhance the overall response of the target cells to the hormones.
Where do endocrine secrete their hormones?
Endocrine glands secrete hormones directly into the bloodstream, where they are carried to target organs and tissues throughout the body. This allows the hormones to have widespread effects on various physiological processes.
Why do plants need hormones that have the opposite effects?
Plants use hormones with opposite effects to regulate growth processes in response to changing environmental conditions. For example, auxins promote cell elongation while cytokinins promote cell division, allowing plants to balance growth in different directions. This helps plants adapt to their surroundings and optimize their growth and development.
What is the branch of medical science concerned with the glands that secrete hormones directly into the bloodstream?
Endocrinology is the branch of medical science focused on the glands that secrete hormones directly into the bloodstream. This field deals with the study of hormones and their effects on bodily functions.
Which hormone has intracellular receptors?
Steroid hormones, including estrogen, testosterone, and cortisol, have intracellular receptors. These hormones can easily pass through the cell membrane and bind to intracellular receptors located in the cytoplasm or nucleus, where they exert their effects on gene expression.
Which type of hormone requires a second messenger?
Peptide or protein hormones require a second messenger to transmit their signal inside the cell. Upon binding to their receptor on the cell surface, these hormones activate intracellular signaling pathways that use second messengers like cAMP or Ca2+ to propagate the signal and elicit a cellular response.
What is the term for hormones that are lipid-soluble and can pass through cell membranes?
The term for hormones that are lipid-soluble and can pass through cell membranes is steroid hormones. This group of hormones includes hormones like estrogen, testosterone, and cortisol, which are derived from cholesterol and can bind to intracellular receptors to exert their effects.
Steroid hormones produce their effects in cells by?
disguising themselves as the male sex hormone, testosterone, which can cause mood swings and other side effects
Two hormones that have additive effects are called?
Synergistic hormones.
What group of hormones exerts metabolic and cardiovascular effects during exercise?
thyroid hormones
What long-term damage results from a partial pancreatectomy?
While such surgery removes normal pancreatic tissue as well, the long-term consequences of this surgery are minimal, with virtually no effects on the production of insulin, digestive enzymes, and other hormones.
What is the difference between tropic and nontropic hormones in terms of their functions and effects on the body?
Tropic hormones stimulate the release of other hormones from endocrine glands, while nontropic hormones directly affect target tissues or organs. Tropic hormones regulate hormone production, while nontropic hormones have direct physiological effects on the body.
Why do steriods take so long to generate change when they bind to intracellular receptors?
Steroids, such as glucocorticoids and sex hormones, bind to intracellular receptors, which then translocate into the nucleus to regulate gene expression. This process takes time because it involves alterations in gene transcription and protein synthesis, which can impact cellular function. The effects of steroids are often not immediate but are long-lasting and can lead to slower, but more sustained changes in the body.
What are two hormones that have additive effects call?
Hormones that have additive effects are often referred to as "synergistic hormones." When these hormones are released together, their combined effects amplify the overall response in the body, leading to a greater physiological impact than either hormone would produce alone. An example of this is the interaction between glucagon and epinephrine, both of which increase blood glucose levels.
List five different effects produced by these medullary hormones?
what are the medullary hormones You can't answer a question with a question...the medullary hormones (adrenal) they are referring to are epinephrine and norepinephrine.
How do hormones in food affect the growth of humans?
It is not clear if these hormones are bad for your health. Almost no research has been done on the health effects of these hormones in humans.It is difficult to separate the effects of added hormones from the mixture of natural hormones found in milk and meat. Buying organic may make people feel better, but there's little proof these products are safer.
