Direct gene activation

After you equip them they will work. Log in. Human Anatomy and Physiology. Study now. See answer 1. Best Answer. The steroid hormones. Study guides. Human Anatomy and Physiology 20 cards. What is abortive transduction. Where is the cochlea. Is the cerebellum part of the brain stem. The mind is like a parachute it won't work unless it is open.

Q: What hormones work by direct gene activation? Write your answer Related questions. Catalysts work by increasing the activation energy of a reaction? Hormones work by affecting what specific tissues? Why don't i get the activation code for spirit fever com once i sign up? What is the activation key of windows 8? How do bio identical hormones work?

Is work expenses direct or not? Which does most of the work of the endocrine system? The dap premium activation code does not work because i get a message saying what if your registration could not be completed due to an incorrect activation code?

What is an endocrynologist? What pair of chemicals work together to form the neuroendocrine system? Do plant hormones work the same as animal hormones? Can an activation code for a PC game work for the same game on a mac? Username Please enter your Username. Password Please enter your Password.

Forgot password? Don't have an account? Sign in via your Institution. You could not be signed in, please check and try again. Sign in with your library card Please enter your library card number. Related Content Related Overviews steroid. D entering the nucleus of a cell and initiating or altering the expression of a gene. A not responding to a feedback mechanism B binding to specific receptors and employing the services of G proteins and cAMP C increasing the basal metabolic rate in the target organ D synthesizing more of the hormone than is actually needed.

B binding to specific receptors and employing the services of G proteins and cAMP. A during protein kinase activation, enzymes phosphorylate many other enzymes B the receptors bind to several hormones at the same time C the protein kinases are rapidly metabolized D there are thousands of receptors on the cell membrane.

Cells that respond to peptide hormones usually do so through a sequence of biochemical reactions involving receptor and kinase activation. In order for cells to respond, it is necessary for first and second messengers to communicate. A peptide hormones always enter the cell membrane and elicit a response without assistance from other messengers B G protein acts as the link between first and second messengers C the hormone receptor complex moves into the cytoplasm as a unit D hormones alter cellular operations through stimulation of a gene directly.

A steroid hormones, because both diffuse easily into target cells B glucagon, because the structure of glucagon is similar to that of thyroid hormone C growth hormone, because the thyroid works synergistically with thyroid hormone D insulin, because insulin is a small peptide.

A angiotensinogen B estrogen C epinephrine D renin. One of the least complicated of the endocrine control systems directly responds to changing blood levels of ions and nutrients. Which of the following describes this mechanism? A catabolic inhibition B humoral stimulation C the rapid oxidation of carbohydrates D protein synthesis. A the adrenal glands B the blood vessels C bones and skeletal muscles D the liver. The parathyroid glands maintain adequate levels of blood calcium. A slowing the activity of tissues that require calcium for activity B blocking the action of growth hormone C antagonizing the synthesis of calcitonin D targeting the bone and activating osteoclasts so that calcium will be released.

D targeting the bone and activating osteoclasts so that calcium will be released. Which organ is responsible for synthesizing ANP? A the heart B the kidney C the skin D the spleen. A cortisol B testosterone C epinephrine D estrogen. A lymphocytes B goblet cells C fibroblasts D adipocytes. A insulin B aldosterone C glucagon D cortisol. Which of the following is not a steroid-based hormone?

A epinephrine B cortisone C aldosterone D estrogen. Which of the following would be associated with the action of steroids on cells?

A extracellular receptors with a specificity for only a single amino acid sequence on the hormone B second-messenger systems C an enzyme that catalyzes the formation of cyclic AMP D a hormone-receptor complex that interacts directly with the cell's DNA. A cyclic AMP phosphodiesterase formation of an active second messenger B hormone binding to intracellular receptors C formation of a specific protein kinase that acts on a series of extracellular intermediates D possible activation of several different second-messenger systems.

A enter the hepatic portal system, which feeds the pituitary B first enter into the hypophyseal portal system C enter venous circulation and travel to the heart, which pumps the hormone-containing blood to the pituitary D travel by arteries to the pituitary.

A is not a tropic hormone B is secreted by the posterior pituitary C secretion is regulated by a hypothalamic secretion D causes the release of hormones from the adrenal medulla. Which of the following is true about calcium homeostasis?

A Parathyroid hormone is the single most important regulator of calcium levels in the blood. B High calcium levels cause bone resorption. C Parathyroid hormone causes an increase in osteoblast activity. D Increased calcitonin levels will cause increased blood calcium levels. A is secreted by the neurohypophysis B presence increases potassium concentration in the blood C functions to increase sodium reabsorption D production is greatly influenced by ACTH.

Which organ does not have hormone production? A skin B kidney C liver D heart. In circumstances where the body requires prolonged or increased levels of a hormone, the DNA of target cells will specify the synthesis of more receptors on the surface of the cells of the target organ. A a reaction to a stressor B the cell's sensitivity reaction C up-regulation D cellular affinity.

A prostaglandins B paracrines C leukotrienes D hydrocortisones. A man has been told that he is not synthesizing enough follicle-stimulating hormone FSH , and for this reason he may be unable to father a child.

Choose the correct statement to explain this problem. A FSH stimulates sperm production in the testes. B FSH stimulates estrogen secretion by ovarian cells; therefore it is not synthesized by males. C The man must be producing progesterone, which inhibits the synthesis of FSH. D The physician is wrong in a hormone made in the adenohypophysis could not influence fertility.

Which of the following organs is affected by thyroid hormone in adults? A brain B spleen C liver D thyroid gland. Thyroxine is a peptide hormone, but its mechanism is different from other peptide hormones. Which of the following statements is true concerning this difference?