1. Paracrine signaling A) involves secreting cells acting on nearby target cells by discharging a local regulator into the extracellular fluid. B) requires nerve cells to release a neurotransmitter into the synapse. C) occurs only in paracrine yeast cells. D) has been found in plants but not animals. E) involves mating factors attaching to target cells and causing production of new paracrine cells. 2. Which of the following is true of synaptic signaling and hormonal signaling? A)
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Unit 3 Lecture Study Guide 1. List the 4 primary tissue types and give the general characteristics and functions of each one. Nerve Tissue: transmit nerve impulses; coordinates and regulates body activities‚ bind and support nerve tissue; carry on phagocytosis; connect neurons to blood vessels‚ changes shape from squamous to cuboidal Epithelial Tissue: covers all free body surfaces and lines organs‚ anchored to connective tissue by basement membrane‚ lacks blood vessels‚ can reproduce
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Topic 1 – Introduction 1. Definitions: anatomy‚ physiology‚ palpation‚ auscultation‚ percussion‚ homeostasis‚ negative feedback loop‚ positive feedback loop‚ intracellular fluid‚ extracellular fluid‚ interstitial fluid‚ anatomical position‚ supine position‚ prone position‚ (frontal or coronal‚ transverse‚ sagittal‚ midsagittal‚ parasagittal‚ oblique sections or planes)‚ cell‚ tissue‚ organ‚ organ system‚ serous membranes (distinguish between visceral and parietal layers)‚ pericardium‚ pleura‚ peritoneum
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AP Biology: Chapter 13 - Meiosis and Sexual Life Cycles Overview * The transmission of traits from one generation to the next is called inheritance‚ or heredity * Along with inherited similarity there is also variation * Genetics is the scientific study of heredity and hereditary variation I. 13.1 Offspring Acquire Genes from Parents By Inheriting Chromosomes A. Inheritance of Genes * Parents endow their offspring with coded information in the form of hereditary units
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the number of chromatids is uneven. Also‚ the cell might have a non-disjunction due to wrong number of chromosome in new cell. Part 4: Post- Lab Question When is DNA replicated during meiosis? DNA is replicated during the S phase of Interphase. Are homologous pair of chromosome exact copies of each other? Yes because Homologous chromosomes are two chromosomes. One inherited from the mother‚ one from the father. They have the same length and general appearance. More importantly‚ these
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blood cell placed in a hypotonic solution will burst (lyse). A red blood cell placed in an isotonic solution will remain the same (will not swell or shrink). The Cell Cycle: G1(growth 1)‚ S(synthesis)‚ and G2(growth 2) phases are collectively called interphase. Prophase – the nuclear envelope disintegrates and centrioles migrate to opposite poles of the cell. Metaphase – the spindle fibers push the chromotid pairs toward the middle of the cell. Anaphase – the centromeres split in half and the chromotids
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B. anaphase C. metaphase. D. telophase. _______16. Chromosomes align to form metaphase plate: A. prophase. B. anaphase C. metaphase. D. telophase. Match the term from Column I with the best definition from Column II. _______ 17. Interphase A. chromosomes separate into sister chromatids _______ 18. Prophase B. nuclear envelope reforms around separated sets of DNA _______ 19. Metaphase C. chromosomes align along middle of cell _______ 20. Anaphase D. cell makes new organelles
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students should be able to: Describe the process of binary fission. Describe the features and components of eukaryotic chromosomes and sister chromatids. Describe the phases of the eukaryotic cell cycle. Describe the events that take place during interphase. Summarize events that occur during the five phases of mitosis. Compare cytokinesis in plants and animals. Understand the function of meiosis in sexual reproduction. Distinguish between germ-line and somatic cells. Describe how homologous chromosomes
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BIO Microscopy‚ Mitosis‚ and Motility Lab Discussion Questions In the Microscopy‚ Mitosis‚ and Motility lab‚ the class used the Compound Microscope. The Compound Microscope helped examine the prokaryotic and eukaryotic cells‚ observe the different stages of mitosis‚ and compare modes of motility used by protists. The light compound microscope works with the aid of lenses such as the eyepiece. These lenses help keep the focus of the light on the eye. The fine and course adjustments also assist with
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Question 1 1 out of 1 points If you could pick up a single chromosome in your hand‚ what types of macromolecules would you be holding? Answer Selected Answer: e. a‚ b‚ & c Question 2 1 out of 1 points Nucleotides on a single-stranded DNA molecule are connected by: Answer Selected Answer: phosphodiester bonds Question 3 10 out of 10 points The polarity of DNA synthesis is Answer Selected Answer: 5’-->3’
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