Diatom is part of the stramenopiles clade‚ which is considered to be plant-like autotrophs that are often called algae. These autotrophs are mainly photosynthetic using chlorophylls a‚ chlorophylls c and xanthophyll to undergo photosynthesis to convert energy from the sun. Some species of Diatom are colorless‚ but those that do have color get it from various pigments. Diatom have two halves of their cell wall making up what’s called a silica cell wall. The soft part of the cell wall decomposes‚ but
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Anatomy of the Female Reproductive System The reproductive role of the female is far more complex than that of a male. Not only must she produce gametes‚ but her body must prepare to nurture a developing embryo for a period of approximately nine months. Ovaries‚ the female gonads‚ are the primary reproductive organs of a female‚ and like the male testes‚ ovaries serve a dual purpose: They produce the female gametes (ova) and sex hormones‚ the estrogens * and progesterone (pro-ges′tĕ-rōn). The
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attempted to use “the naïve physicist’s approach” to the subject by wondering about the mechanisms and behaviours of organisms modeled using a physical mindset (Schrödinger‚ 2). Though he was successful in explaining many biological phenomena such as meiosis‚ gene transfer and mutations without great reliance on biological knowledge‚ he noted in his conclusion how one must be prepared to discover instances where it is impossible to
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COURSE SYLLABUS Instructor: Koshy Varghese‚ M.S. (Biology)‚ M.Ed.‚ M.S. (Psychology) Email: Koshy.Varghese@Navarrocollege.edu Phone: 903-874-6501 General Biology I (BIOL 1406) I Biology Spring 2013 INTRODUCTION General Biology I is an introductory survey of contemporary biology for students majoring in the sciences. Topics emphasized will include the chemical basis of life‚ structure and function of cells‚ energy transformations‚ and molecular biology and genetics. The student
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SBI 3U1 – 07: Biology Examination Definitions Unit 1: Diversity of Living Things ➢ Species: a group of organisms that can interbreed in nature and produce fertile offspring. ➢ Morphology: the branch of biology that deals with the structure or form of organisms. ➢ Phylogeny: the evolutionary history of a species. ➢ Taxonomy: the branch of biology that identifies‚ names‚ and classifies species based on natural features. ➢ Binomial nomenclature: the system of giving a two-word Latin name to
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sister chromosomes are pulled toward opposite ends. A new nuclear envelope forms around the separated sister chromosomes. As mitosis completes‚ cytokinesis is well underway. Explain how these alleles are distributed by the process of meiosis to gametes. Meiosis I separates homologous chromosomes‚ producing two haploid cells. During Prophase I‚ synapse and crossing over occurs. During Metaphase I‚ Homologous pairs move together along the metaphase plate. In Anaphase I‚ Kinetochore microtubules
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Animations With Quizzes: Bacterial Growth: Overview. Which of the following is true about how bacterial cells divide? They divide into 2 daughter cells. They divide by binary division. They divide sexually. They divide by mitosis. They divide by meiosis. They divide asexually. They divide into two daughter cells. View the following short animation from the MyMicrobiologyPlace website: Microbiology Animations With Quizzes: Bacterial Growth Curve. Which of the following is true about bacterial
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¬¬¬Biology Exam 4 Energy III – Cellular Respiration (Krebs Cycle and Electron Transport Chain) A. The Krebs Cycle a. Energy i. The net gain of 2 ATP and 2 NADH represents an effective transfer of 20 kcal of energy to ATP (about 10 kcal each) about 80 kcal of energy to NADH (about 40 kcal each)‚ for a total of about 100 kcal ii. Complete oxidation of glucose results in the release of 684 kcal of energy‚ significant energy still remaining in pyruvate b. Eukaryotes i. Pyruvate is transported
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observed between the sperm and eggs you saw on the slides: Questions A. Why are the testes located outside of the body in the scrotum? B. What process occurs in the seminiferous tubules? C. Why do sperm and egg go through meiosis? D. Name the various follicles you can find inside a typical ovary. E. How is the endocrine system involved in reproduction? F. What hormones lead to the maturation of both sperm and egg? Exercise 2: Reproductive
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asexually 3. Symbiotic relationships are common between plants and other species II. Concept 38.1: Flowers‚ double fertilization‚ and fruits are unique features of the angiosperm life cycle 1. Diploid (2n) sporophytes produce spores by meiosis; these grow into haploid (n) gametophytes 2. Gametophytes produce haploid (n) gametes by mitosis; fertilization of gametes produces a sporophyte 3. Angiosperms- sporophyte is dominant generation‚ the large plant * gametophytes are reduced
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