Chapter 45 hormones and the endocrine system pdf

Laboratory activities and demonstrations represent an essential part of effective science teaching. Written materials and pictures can convey an enormous amount of information, Reading any answers to questions or discussions in another student's book or allowing someone Use proper citation methods and formats as noted in the Survival Guide, using ideas and citing the source for This chapter is presented in three sections, Proposal Format for Biology , Proposal.

Format for Biology Apr 26, Wednesday, June 22, — to p. Directions to the Teacher In the box provided at the end of each part, record the number of questions the student answered correctly for that part. At least two science teachers Solution manual. Working with classmates outside class. Lab experiments. Self-rating exercises. Group lab work. Online interaction with instructor. All Rights Reserved. Designed by Templatic. Home Copyright Privacy Contact. Biology Chapter 45 Guide Answers.

Sponsored High Speed Downloads. AP BIO summer work- science concepts review packet. Biology Biology. SCO Handbook Feb 15, Notes and Reading Guides In vertebrates, the fibers and foundation combine to form six major types of connective tissue: — Loose connective tissue binds epithelia to underlying tissues and holds organs in place.

Biology , Introductory Biology II Course Obiectives: Biology is a 4 credit hour course that consists of minutes of lecture and 1'70 minutes of lab each week. BIOL Syllabus. Raven Pro 1. Endocrine System Active Reading Guide. BPD English. All Rights Reserved Designed by Templatic. An animal hormone is a chemical signal that is secreted into the circulatory system that …. Copyright Abuse. Chapter 45 Guided Reading Answers Flashcards Quizlet The nervous and endocrine systems transmit signals throughout the body.

Chapter Hormones and the Endocrine System need to review signal transduction in Chapter Chapter 45 Guided Reading Answers - e13components. Biology Chapter 45 Answers hsm1. E Only A and B are correct. Answer: E 5 Substance X is secreted by one cell, travels a short distance through interstitial fluid, and produces an effect in a cell immediately adjacent to the original secreting cell. All of the following terms could describe this substance except A nitric oxide.

B neurotransmitter. C prostaglandin. D pheromone. E growth factor. Answer: D 6 Which of the following is a local regulator responsible for activating an enzyme that relaxes smooth muscle cells? B fatty acids. C steroids. D amino acids. E nitric oxide Answer: B 8 Which of the following examples is incorrectly paired with its class? A cytokines-local regulator B estrogen-steroid hormone C prostaglandin-peptide hormone D ecdysone-steroid hormone E neurotransmitter-local regulator Answer: C 9 What is the mode of action of aspirin and ibuprofen?

D target cell. E regulatory cell. Answer: D 11 Only certain cells in the body are target cells for the steroid hormone aldosterone. Which of the following is the best explanation for why these are the only cells that respond to this hormone? A Only target cells are exposed to aldosterone. B Only target cells contain receptors for aldosterone. C Aldosterone is unable to enter nontarget cells. D Nontarget cells destroy aldosterone before it can produce its effect.

E Nontarget cells convert aldosterone to a hormone to which they do respond. Answer: B 12 Why is it that some body cells respond differently to the same peptide hormones?

A Different target cells have different genes. B Each cell knows how it fits into the bodys master plan. C A target cells response is determined by the product of a signal transduction pathway. D The circulatory system regulates responses to hormones by routing the hormones to specific targets. E The hormone is chemically altered in different ways as it travels through the circulatory system.

Answer: C 13 Which of the following statements about hormones is incorrect? A They are secreted into the extracellular fluid. B They circulate in blood or hemolymph. C They communicate messages throughout the body. D They travel through a dedicated pathway. E Not all cells respond to a particular hormone.

Answer: D 14 Which of the following statements about hormones is incorrect? A Glands that produce them are ductless glands. B They are produced only by organs called endocrine organs. C Some are water soluble and some are not. D They often maintain steady-state conditions. E They may turn genes off or on. Answer: B 15 Which of the following does not represent a chemical signal?

A movement of a signal from one end of a nerve to the other end of the nerve B movement of a signal from one nerve to the next C an immune cell releasing a cytokine D a chemical released that affects the cell that releases it E chemicals released into the bloodstream from nerve cells Answer: A 16 Hormone X produces its effect in its target cells via the cAMP second messenger system. Which of the following will produce the greatest effect in the cell?

A a molecule of hormone X applied to the extracellular fluid surrounding the cell B a molecule of hormone X injected into the cytoplasm of the cell C a molecule of cAMP applied to the extracellular fluid surrounding the cell D a molecule of cAMP injected into the cytoplasm of the cell E a molecule of activated, cAMP-dependent protein kinase injected into the cytoplasm of the cell Answer: A 17 Which of the following statements about hormones is correct? A Steroid and peptide hormones produce different effects but use the same biochemical mechanisms.

B Steroid and peptide hormones produce the same effects but differ in the mechanisms that produce the effects. C Steroid hormones affect the synthesis of proteins, whereas peptide hormones affect the activity of proteins already present in the cell.

D Steroid hormones affect the activity of certain proteins within the cell, whereas peptide hormones directly affect the processing of mRNA. E Steroid hormones affect the synthesis of proteins to be exported from the cell, whereas peptide hormones affect the synthesis of proteins that remain in the cell.

Answer: C 18 Which of the following statements about hormones that promote homeostasis is incorrect? A A stimulus causes an endocrine cell to secrete a particular hormone. B The hormone travels in the bloodstream to target cells.

C Specific receptors bind with the hormone.