Welcome to AB140 Introduction to Management Unit 3 Seminar Planning.
Unit 3 Seminar
description
Transcript of Unit 3 Seminar
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Unit 3 Seminar
Cells and Tissues
Amy J. Hilbelink, Ph.D.
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The 3 main parts of a cell
Plasma membrane Phospholipid framework
Cytoplasm Table 3-1, list of organelles
Nucleus Controls cell reproduction (mitosis)
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Structure of plasma membrane
What is the function of the cell membrane?
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Organelles – how did you do?
Ribosomes = protein synthesis ER = smooth (synthesizes lipids); rough (transports
proteins). Golgi = processes and packages from ER Mitochondria = powerhouse Lysosome = digestive system Centrioles= cell reproduction Cilia= move substances along surface Nucleus= dictates protein synthesis Nucleolus = formation of ribosomes
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A question?
Do substances get through a cell membrane?
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Let’s discuss how!
Passive transport processes
Active transport processes
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Primary passive transport
Diffusion- dissolving tablet Osmosis – water movement from higher
volume to lower via semi-permeable membrane (dialysis)
Filtration – hydrostatic pressure (down a gradient)
None requires ATP energy!
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What is this an example of ?
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What is this an example of ?
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What is this an example of ?
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Active transport
Ion pumps = lower to higher concentration (up a concentration gradient) with ATP
Phagocytosis= “to eat” ;cell membrane forms pocket with ATP
Pinocytosis = “drink” ;similar to phagocytosis, but a pocket of protoplasm forms around material then pinches off inside cell, with ATP
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Any questions”
Active vs. Passive transport?
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Cell Reproduction and heredity
All human cells that reproduce, do so by a process called_________?
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Stages of mitosis
www.bbc.co.uk/schools
interphase
prophase
metaphase
anaphase
telophase
Two identical cells
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4 major types of tissues
Epithelial Connective Muscular Nervous
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Epithelial cell shapes
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What is the function?
Simple squamous epithelium
Webanatomy.net
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What is the function?
Webanatomy.net
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What is the function?
Webanatomy.net
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A question?
What is the most abundant tissue in the body?
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Answer
Connective tissue ! Table 3-8.
Areolar connective tissue Adipose or fat Fibrous connective tissue Bone Cartilage Blood Hematopoietic tissue
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Muscle Tissue
What are examples of each type? Are they voluntary or involuntary?
Skeletal Cardiac Smooth
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Muscle Tissue
These are examples of each?
Skeletal Voluntary, and attached to bone
Cardiac Involuntary, and make up walls of heart
Smooth Involuntary, and found in digestive tract, blood
vessels and respiratory system.
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What type of muscle tissue?
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What type of muscle tissue?
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What type of muscle tissue?
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Nervous Tissue
Function = communication
Structures Nerve cells = neurons Glia = supporting cells Cell body = made of axon and dendrites
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Nervous Tissue
Suny.edu/faculty/MichaelGregory