Biology, asked by Anonymous, 8 months ago

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Answers

Answered by aviguru111
2

Answer:

Identify the three major classes of hormones on the basis of chemical structure

Compare and contrast intracellular and cell membrane hormone receptors

Describe signaling pathways that involve cAMP and IP3

Identify several factors that influence a target cell’s response

Discuss the role of feedback loops and humoral, hormonal, and neural stimuli in hormone control

Although a given hormone may travel throughout the body in the bloodstream, it will affect the activity only of its target cells; that is, cells with receptors for that particular hormone. Once the hormone binds to the receptor, a chain of events is initiated that leads to the target cell’s response. Hormones play a critical role in the regulation of physiological processes because of the target cell responses they regulate. These responses contribute to human reproduction, growth and development of body tissues, metabolism, fluid, and electrolyte balance, sleep, and many other body functions. The major hormones of the human body and their effects are identified.....

Endocrine Glands and Their Major Hormones (Table 2)

Endocrine gland Associated hormones Chemical class Effect

Pituitary (anterior) Growth hormone (GH) Protein Promotes growth of body tissues

Pituitary (anterior) Prolactin (PRL) Peptide Promotes milk production

Pituitary (anterior) Thyroid-stimulating hormone (TSH) Glycoprotein Stimulates thyroid hormone release

Pituitary (anterior) Adrenocorticotropic hormone (ACTH) Peptide Stimulates hormone release by adrenal cortex

Pituitary (anterior) Follicle-stimulating hormone (FSH) Glycoprotein Stimulates gamete production

Pituitary (anterior) Luteinizing hormone (LH) Glycoprotein Stimulates androgen production by gonads

Pituitary (posterior) Antidiuretic hormone (ADH) Peptide Stimulates water reabsorption by kidneys

Pituitary (posterior) Oxytocin Peptide Stimulates uterine contractions during childbirth

Thyroid Thyroxine (T4), triiodothyronine (T3) Amine Stimulate basal metabolic rate

Thyroid Calcitonin Peptide Reduces blood Ca2+ levels

Parathyroid Parathyroid hormone (PTH) Peptide Increases blood Ca2+ levels

Adrenal (cortex) Aldosterone Steroid Increases blood Na+ levels

Adrenal (cortex) Cortisol, corticosterone, cortisone Steroid Increase blood glucose levels

Adrenal (medulla) Epinephrine, norepinephrine Amine Stimulate fight-or-flight response

Pineal Melatonin Amine Regulates sleep cycles

Pancreas Insulin Protein Reduces blood glucose levels

Pancreas Glucagon Protein Increases blood glucose levels

Testes Testosterone Steroid Stimulates development of male secondary sex characteristics and sperm production

Ovaries Estrogens and progesterone Steroid.....

Answered by snehpreet3232
1

Answer:

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Explanation:

Explanation:As enzymes are catalyst, at the end of reaction they remain unchanged and can be reutilized. As hormones are not catalyst, they participate in biological reaction and their chemical composition is changed and cannot be reutilized as such

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