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Bio 109 Study Guide Exam Questions and Answers 100% Pass positive phototaxis - movement of an organism toward light negative phototaxis - movement away from light endospore - A thick-walled protective spore that forms inside a bacterial cell and resists harsh conditions. binary fission - A form of asexual reproduction in which one cell divides to form two identical cells. phototroph - an organism that gets its energy from sunlight chemotroph - microbes that gain energy from chemical com...

Bio 109 Chapter 27: Bacteria and Archaea Exam Questions and Answers 100% Pass Bacteria function primarily in which ecological role? - Bacteria are common in all of the listed ecological roles. .Parasitism .Mutualism .Commensalism .Decomposition The Desulfovibrio bacterium breaks down organic matter (which it must have) and uses sulfate (not oxygen) as an electron acceptor. As a result, it produces hydrogen sulfide (H2S), accounting for the "rotten egg" smell of swamp muck. Oxyge...

Biology 109: Chapter 27 Bacteria and Archaea Exam Questions and Answers 100% Pass Positive phototaxis - Bodily movement of a motile organism in response toward a light Negative phototaxis - Bodily movement of a motile organism in response away from a light Endospore - A thick-coated, resistant cell produced by some bacterial cells when they are exposed to hard conditions Binary fission - A method of asexual reproduction in single-celled organisms in which the cell grows to roughly doub...

Biology 109 Exam 1 (Ch 1-4) Study Guide Questions and Answers 100% Pass 9 Characteristics of Living Things - 1. Organization 2. Made of Cells 3. All Use Energy 4. Homeostasis 5. Respond to Their Environment 6. Growth and Development 7. All Living Thins Reproduce 8. Pass Along Hereditary Traits 9. Adapt to Their Environment 3 Domains of Life - 1. Bacteria 2. Archaea 3. Eukarya 4 Kingdoms of Eukarya - 1. Protista 2. Fungi 2© EMILY CHARLENE YEAR , ALL RIGHTS RESERVED 3. Plantae ...

Biology 109 Exam 2 Questions and Answers 100% Pass Slows cell growth often antagonizing the action of other hormones - Abscisic Acid release from embryo signals seeds to break dormancy and germinate - Gibberellins accumulates in leaves when plant begins to wilt, causing stomata to close rapidly - Abscisic Acid synthetic forms of this hormone are widely employed as herbicides that target broad leaf weeds such a dandelions - Auxins In the etiolation response, the function of protein kinase...

Biology 109 Exam 2 Questions and Answers 100% Pass Mitosis - cell division for growth, replacement, repair, and asexual production, normally to increase the amount of cells in a body. Starts with a single cell and splits into 2 diploids. Occurs in somatic cells. Daughter cells are all clones of the mother cell. Meiosis - Cell division that produces reproductive cells in sexually reproducing organisms usually to produce offspring. Starts with one cell to produce 4 2n's. Occurs in germ c...

BIO 109 - Exam 2 Questions and Answers 100% Pass Keratin (define) - a fibrous protein Dermacidin (What is it) - known as proteolysis inducing factor (PIF), is a protein that is encoded by the DCD gene it is an anti-microbial peptide secreted by human eccrine sweat glands onto the skin as apart of the unnate host defense of the immune system Defensisns (Define) - are small cysteine-rich cationic protein found in both vertebrates and invertebrates. They are, and function as, host defense p...

Biology 109-Exam 2-Final Review Questions and Answers 100% Pass The driving force that pushes the root tip through the soil is due primarily to - Elongation of cells behind the root apical meristem Which of the following statements about xylem is incorrect? - It conducts materials in both directions. Apical dominance can be removed by - Pruning the branches with an electric trimmer Absorption of water and minerals by a plant occurs primarily via the? - Root hairs According to the ABC mo...

Biology 109 - Final Exam Review Questions and Answers 100% Pass Which of the following compounds is only found in the cell walls of gram-negative bacteria? - peptidoglycan - lipopolysaccharide - protein - chitin - cellulose - - lipopolysaccharide When a non-pathogenic strain of S. pneumoniae is mixed with a heat-killed pathogenic strain, the former is converted to the pathogenic form. The process responsible for this conversion is termed - conjugation - sexual reproduction - transf...

CCBC BIOL 109 A&P Final Study Guide Questions and Answers 100% Pass failure of the body to maintain homeostasis will - cause illness in a negative feedback system, the response of the effector - reverses the original stimulus the _____________ is the region between the lungs from the breastbone to the vertebra - mediastinum the describe the relationship of different body structures to each other, anatomists use directional terms - true which layer contains blood vessels - dermis the c...