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Microorganism

chapter_1_ap_biology_exam

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Campbell's Biology, 9e (Reece et al.) Chapter 1 Introduction: Themes in the Study of Life 1) A localized group of organisms that belong to the same species is called a A) biosystem. B) community. C) population. D) ecosystem. E) family. Answer: C Topic: Concept 1.1 2) Organisms interact with their environments, exchanging matter and energy. For example, plant chloroplasts convert the energy of sunlight into A) the energy of motion. B) carbon dioxide and water. C) the potential energy of chemical bonds. D) oxygen. E) kinetic energy. Answer: C Topic: Concept 1.1 3) The main source of energy for producers in an ecosystem is A) light energy. B) kinetic energy. C) thermal energy. D) chemical energy. E) ATP. Answer: A Topic: Concept 1.1

AP BIO CHP 1 CAMPBELL BIOLOGY 9e

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Campbell's Biology, 9e (Reece et al.) Chapter 1 Introduction: Themes in the Study of Life 1) A localized group of organisms that belong to the same species is called a A) biosystem. B) community. C) population. D) ecosystem. E) family. Answer: C Topic: Concept 1.1 2) Organisms interact with their environments, exchanging matter and energy. For example, plant chloroplasts convert the energy of sunlight into A) the energy of motion. B) carbon dioxide and water. C) the potential energy of chemical bonds. D) oxygen. E) kinetic energy. Answer: C Topic: Concept 1.1 3) The main source of energy for producers in an ecosystem is A) light energy. B) kinetic energy. C) thermal energy. D) chemical energy. E) ATP. Answer: A Topic: Concept 1.1

Protista and Fungi Notes

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19.1: Protists The World of Protists What is a Protist? Kingdom Protista contains the most diverse group of organisms of all kingdoms Most are unicellular (diatoms), but some are multicellular (giant kelp). Some are heterotrophs, some are autotrophs and others are both. The characteristic that all protists share is that they are eukaryotes Protists are divided into animal-like protists, funguslike protists and plantlike protists. Protozoa: animal-like protist, all are unicellular Algae: plant-like protists, do not have roots, stems and leaves Unicellular algae produce most of the world?s oxygen and are the basis for aquatic food chains Fungus-like protists are able to move at some point in their life and do not have chitin in their cell walls What is a protozoan?

Protista Notes

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19.1: Protists The World of Protists What is a Protist? Kingdom Protista contains the most diverse group of organisms of all kingdoms Most are unicellular (diatoms), but some are multicellular (giant kelp). Some are heterotrophs, some are autotrophs and others are both. The characteristic that all protists share is that they are eukaryotes Protists are divided into animal-like protists, funguslike protists and plantlike protists. Protozoa: animal-like protist, all are unicellular Algae: plant-like protists, do not have roots, stems and leaves Unicellular algae produce most of the world?s oxygen and are the basis for aquatic food chains Fungus-like protists are able to move at some point in their life and do not have chitin in their cell walls What is a protozoan?

The Study of Life

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Chapter 1 Biology: The Study of Life I. What is Biology? A. The Science of Biology Biology: the study of life Organism: anything that possess all the characteristics of life B. Characteristics of Living Things All living things Have an orderly structure Produce offspring Grow and develop Adjust to changes in the environment 1. Living things are organized Organization: orderly structure; cells, tissues, organs, organ systems 2. Living things make more living things Reproduction: production of offspring Species: a group of organisms that can interbreed and produce fertile offspring in nature 3. Living things change during their lives Growth: an increase in the amount of living material and the formation of new structures

Prokaryotes

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Overview: They?re (Almost) Everywhere! ? Prokaryotes were the earliest organisms on Earth. ? Today, they still dominate the biosphere. ? Their collective biomass outweighs all eukaryotes combined at least tenfold. ? More prokaryotes inhabit a handful of fertile soil or the mouth or skin of a human than the total number of people who have ever lived. ? Prokaryotes are wherever there is life. ? They thrive in habitats that are too cold, too hot, too salty, too acidic, or too alkaline for any eukaryote. ? Prokaryotes have even been discovered in rocks two miles below the surface of the Earth. ? Why have these organisms dominated the biosphere since the origin of life on Earth? ? Prokaryotes display diverse adaptations that allow them to inhabit many environments.

Biology Lecture on Prokaryotes

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+ Biology 10504 Chapter 27: Bacteria and Archaea + About me 2 Bachelors? degree: Concordia College in Minnesota Ph.D. in Biomedical Science: University of California, San Diego Moved to Fort Worth Jan 2010. Stayed in sunny San Diego for postdoctoral fellowship studying Anthrax. + Upper level courses I teach General Microbiology (BIOL 30303) 2 hr lecture + 3 hr lab (spring) Medical Microbiolgy (BIOL 40303) 3 hr lecture (Fall) + iClicker Questions I am taking BIOL 10504 because A)? I?m pre-med B)? I?m interested in another pre-health profession (pre-vet, pre-dental, etc.) C)? I?m interested in going to graduate school in Biology D)? I just like Biology and wanted to learn more about it E)? None of the above 4 +

Campbell Biology Chapter 28

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Chapter 28- Protists Overview: Living Small Protist- the informal name of the group of mostly unicellular eukaryotes Protists constitute a polyphyletic group, and Protista is no longer valid as a kingdom caused by systematics. Molecular data shows there is genetic diversity. Concept 28.1: Most eukaryotes are single celled organisms Protists are eukaryotes most are unicellular, but there are some colonial and multicellular species Protists are the most diverse of the eukaryotes Single celled protists can be very complex, as all biological functions are carried out by organelles in each individual cell don?t see the division of labor like in multicellular eukaryotes, every single cell has all the organelles a protist needs to survive

Chapter 1 PPT (7TH EDITION)

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Inquiring About the World of Life Biology is the science of life Traditionally divided into three divisions: - Botany - Zoology (NOT Zoo-ology!) - Microbiology 3 Modern Biology Many diverse subdivisions, such as: - Wildlife Biology - Cellular Biology - Anatomy & Physiology - Ecology - Genetics - Evolutionary Biology - Molecular Biology - Developmental Biology - Immunology - Behavioral Ecology - Marine Biology 4 - asking questions and seeking science-based answers The central activity of biology: scientific inquiry Biologists ask questions such as: how a single cell develops into an organism - how the human mind works - how living things interact in communities Biology is therefore a quest ? an ongoing inquiry about the nature of life

Origin of the Cell

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Prokaryotes- An organism of the kingdom Monera (or Prokaryotae), comprising the bacteria and cyanobacteria; characterized by the absence of a distinct, membrane-bound nucleus or membrane-bound organelles, and by DNA that is not organized into chromosomes. Spontaneous generation- mistaken idea that life can arise from nonliving materials Biogenesis- Idea that living organisms come only from other living organisms. Protocell- Large, ordered structure, enclosed by a membrane, that carries out some life activities, such as growth and division. Archaebacteria- Chemosynthetic prokaryotes that live in harsh environments, such as deep-sea vents and hot springs The Origin of Life Origins: The Early Ideas Spontaneous generation The idea that nonliving material can produce life

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