Homework Answers
Answere : Hormones are such chemical substances that are released into main blood stream from where they are transported to targets cells and causes changes in target cells.
There are two type of hormones : water soluble peptide hormones and the lipid soluble steroids hormones.
Hormones that are water-soluble bind with plasma membrane
receptors; the hormone is the first messenger, and it causes the
activation of G protein and the formation of a second messenger
through an intracellular enzyme cascade.
The cellular response may include activation or inhibition of
enzymatic pathways, stimulation of growth through cellular
reproduction, stimulation of cellular secretions, change in
membrane permeability, and muscle contraction or relaxation.
The degree of cellular response is a function of both receptor
number and receptor interaction.
Basically, water soluble hormones involves signal transduction pathways.
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1. Compare the ways that water-soluble hormones trigger changes in target cells.
Compare and contrast water soluble and lipid soluble hormones in terms of transport in the blood,...
Compare and contrast water soluble and lipid soluble hormones in terms of transport in the blood, location of target cell receptors and mechanism of action in target cells. (Answer in Paragragh format only)
Classify each phrase on the left into the correct hormone category: water-soluble hormones, lipid-soluble hormones, or...
Classify each phrase on the left into the correct hormone
category: water-soluble hormones, lipid-soluble hormones, or both
types of hormones.
Cell response occurs within minutes Hormone travels in bloodstream to target cells Water-soluble hormones Lipid-soluble hormones Both types of hormones Activate a second messenger system Bind to receptors on target cell membrane Hormone is released by endocrine cells Bind to receptors on target cell membrane Peptide hormones Hormone enters target cell and binds to receptor inside cel Steroid hormones messenger...
1. What are the 2 main ways that hormones can interact with their target cells? Which...
1. What are the 2 main ways that hormones can interact with their target cells? Which chemical classes of hormones use each of the different mechanisms? Give an example of each type of hormone. 2. Hormones may interact with each other in one of 3 ways to alter body function. Describe each type of interaction and give an example of hormones involved in each one. 3. How do circulating hormones differ from paracrines & autocrines? 4. How does a portal...
How do endocrine hormones affect their target cells? They cause changes in cell metabolism only. They...
How do endocrine hormones affect their target cells? They cause changes in cell metabolism only. They stimulate the synthesis of glycogen. They increase the permeability of the target cell. They cause changes in cell metabolism and/or gene transcription. They affect gene transcription only.
In the (area of the brain) neurosecretory cells produce two hormones, _and - These hormones are...
In the (area of the brain) neurosecretory cells produce two hormones, _and - These hormones are released into the blood from the - pituitary. The (area of the brain) also produces and hormones which regulate production of six hormones in the pituitary. These six hormones are Insulin Glucagon What cells produce it? What factors stimulate production? Target cells Body's response. Compare steroid and peptide hormones. Check which traits apply to each: Steroid Peptide Found in blood Found in cytoplasm of...
Identify whether steroid hormones are water soluble or lipophilic. How are they transported in the blood?...
Identify whether steroid hormones are water soluble or lipophilic. How are they transported in the blood? Where on the cell are the receptors for these hormones located?
Need help on these questions ? 1.) Steroid hormones trigger transcription of target genes by... ...
Need help on these questions ? 1.) Steroid hormones trigger transcription of target genes by... a. activating the release of Ca+2 ions that bind to and activate transcription factors. b. activating a kinase cascade that results in the activation of a transcription factor for a set of genes. c. binding directly to DNA and stimulating transcription. d. binding to nuclear receptors that act as transcription factors for specific genes. 2.) Which type of cell-surface receptor(s), when...
r-soluble hormon Select one: O None of the above apply to water-soluble hormones O activates a...
r-soluble hormon Select one: O None of the above apply to water-soluble hormones O activates a second messenger system O results in transcription of a mRNA molecule O has extracellular, intramembranous, and extracellular domains O is a protein
Where on the target cells are receptors for peptide hormones usually found and why? Select one:...
Where on the target cells are receptors for peptide hormones usually found and why? Select one: A. in the cytoplasm, because (most) peptides act via second messengers B. in the nucleus, because (most) peptides affect the metabolism of the target cells C. on the cell membrane, because peptides cannot penetrate the cell membrane D. on the cell surface, because that is where the G-proteins are located
1. name the hormones produced by the hypothalamus pituitary gland - thyroid axis 2. do hormones...
1. name the hormones produced by the hypothalamus pituitary gland - thyroid axis 2. do hormones act on all the cells ? what helps the hormones enter the target cells? 3. glucagon and insulin have opposing effect on their target cells . they are _______ to each other in action
Classify each phrase on the left into the correct hormone
category: water-soluble hormones, lipid-soluble hormones, or both
types of hormones.
Cell response occurs within minutes Hormone travels in bloodstream to target cells Water-soluble hormones Lipid-soluble hormones Both types of hormones Activate a second messenger system Bind to receptors on target cell membrane Hormone is released by endocrine cells Bind to receptors on target cell membrane Peptide hormones Hormone enters target cell and binds to receptor inside cel Steroid hormones messenger...
In the (area of the brain) neurosecretory cells produce two hormones, _and - These hormones are released into the blood from the - pituitary. The (area of the brain) also produces and hormones which regulate production of six hormones in the pituitary. These six hormones are Insulin Glucagon What cells produce it? What factors stimulate production? Target cells Body's response. Compare steroid and peptide hormones. Check which traits apply to each: Steroid Peptide Found in blood Found in cytoplasm of...
r-soluble hormon Select one: O None of the above apply to water-soluble hormones O activates a second messenger system O results in transcription of a mRNA molecule O has extracellular, intramembranous, and extracellular domains O is a protein
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