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dcauthen86
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What do all cells in your body have?
- Plasma Membrane
- Nucleus
- Cytoplasm
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What is the structure of the plasma membrane?
contains two phospholipid bi-layers with integral and peripheral proteins
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What is the function of the plasma membrane?
to provide a boundary around the cell; where chemical reactions occur
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Which part of the cell is selectively permeable?
Plasma membrane
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What does selectively permeable mean?
only allows certain things to go through the membrane
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What is the structure of the nucleus?
surrounds the DNA through the protection of a nuclear envelope
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What is the fuction of the nucleus?
Houses the DNA, is the genetic control center of the cells.
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What is the structure of cytoplasm?
liquid/gel part of the cell (jelly-like substance)
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What is the fuction of the cytoplasm?
Holds the organelles in place inside the cell
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Organelles
small organs found within the cell
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Structure of Ribosomes
- free in the cytoplasm
- attached to the rough endoplasmic reticulum
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Structure of the Endoplasmic Reticulum
a network of membranes connected to the nucleus
receive their directions directly from the nucleus
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Fuction of the Rough ER
synthesizes proteins (enzymes, hormones, muscles) studded with ribosomes
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synthesizes lipids (phospholipids, waxes) it lacks ribsomes on its surface.
Smooth Endopasmic Reticulum
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Structure of peroxisome
sac-like organelle found in cytoplasm
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contains enzymes that detoxify toxins like alcohol, formaidetlyde, and free radicals and changes them to hydrogen peroxide
Peroxisome
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Ships items from the ER
golgi apparatus
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appears to be a stack of flatten pancakes.
Golgi Apparatus
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modify, package, and secreate substances from the cell.
Makes lysomes
Golgi Apparatus
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larger than ribosomes an are found free in the cytoplasm
produced by the Golgi Apparatus
Lysosomes
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acts as the 'janitor'
Lysosomes
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Lysosomes
break down cell parts (recycle worn out organelles)
kill the cell (if lysosome is reptured)
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powerhouse of the cell, the site of cellular respiration such as glusose and oxygen, converted into ATP (energy)
Mitochondria
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Centrioles
tubes of proteins called microtubules
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used in mitosis and meiosis in order to pull the chromosomes aparts
centrioles
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Cytoskeleton
network of proteins called microtubules and microfilaments form rught under the plasma membrane
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Forms a flexiable internal framework for the cell
Cytoskeleton
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short hair like extension of the plasma membrane
cilia
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moves in unison to clean the respiratory tract of debris or to move an egg from teh fallopian tube to the uterus
cilia
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Flagella is found in what part of the human body?
Sperm
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long tail-like whip found in the plasma membrane
flagella
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