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organelle

Chapter 1 PPT (7TH EDITION)

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Biology
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Biology
microbiology
Evolutionary biology
Cell Biology
organism
Zoology
evolution
Multicellular organism
Microorganism
metabolism
bacteria
organelle

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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Biology
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Prokaryote
Abiogenesis
organelle
bacteria
cell
Microorganism
Archaea
Monera
Eukaryote
organism

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

Bio

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Biology
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Cell Biology
cell
organelle
Messenger RNA
Biological membrane
Outline of cell biology
health
Technology

www.asbiology101.wordpress.com The figure below shows a bone marrow cell under the electron microscope. Complete the table below to show the functions of the structures labelled A to D. One has been done for you. Function Structure Label Controls substances which enter or leave the cell Contains digestive enzymes Carries out aerobic respiration Membrane surrounding the nucleus nuclear envelope D Attaches to mRNA in protein synthesis The structure and function of the various organelles within animal and plant cells A B C D nucleus E

Chapter 1 Introduction to Biology Lecture

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Biology
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microbiology
Tree of life
Evolutionary biology
Cell Biology
organism
bacteria
Eukaryote
organelle
Species
Multicellular organism
Protist

Introduction: Exploring Life Chapter 1 Definition of Biology The study of life Characteristics of Living Organisms Living organisms are organized. Atom: the smallest unit of matter that still retains the properties of an element Molecule: two or more chemically bound elements Characteristics of Living Organisms Living organisms are organized Cell: the basic living unit of structure and function Eukaryotic cell Possesses a membrane-bound nucleus and membrane-bound organelles Ex. protists, fungi, plants, and animals Prokaryotic cell Does not possess a membrane-bound nucleus or membrane-bound organelles Ex. bacteria Characteristics of Living Organisms Living organisms are organized Tissue: a collection of like cells

chapter 1 - exploring life

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Digital media
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Information Age
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molecule
organelle
cell
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organ
organ system
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