intro to cells ch.7-2 pg 174-181 studio daily video player
TRANSCRIPT
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Intro to Cells
Ch.7-2 pg 174-181
Studio Daily Video Player
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The Cell Theory
All living things have cells Cells are the basic unit of life. Cells arise (come) from other cells!
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Prokaryotes vs Eukaryote
Simpler
Smaller More complex
No nucleus more specialized organelles a nucleus
Ex. Bacteria Ex. Animals, plants
mushroom
protist
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Protist, a single celled organism. One cell big!!!
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Cell Comparison
Prokaryote vs Eukaryote
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A. Nucleus
Controls cell activities, stores genetic information. Surrounded by nuclear membrane DNA is here!! Nucleolus is a small dense area where ribosome
assembly begin.
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B. Ribosome's
Small particles of RNA and protein that assemble proteins.
“makes proteins”
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Endoplasmic Reticulum
Rough ER: synthesis (making) of proteins. It’s called rough because the ribosome's on it look like bumps.
Smooth ER: contain specialized enzymes,like those that detoxify (liver)
and make lipids for cell membrane.
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D. Golgi Apparatus
Modify (changes), sorts, and packages proteins from ER .
organizes and delivers! “pancake stack”
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E. Lysosomes
Uses enzymes to break down molecules and dead bacteria…cleans up!
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F. Vacuoles
Stores materials such as water, salts, proteins, and carbs.
Create pressure to maintain shape, like leaves.
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G. Mitochondria and Chloroplast
1. Mitochondria convert food to ATP ENERGY that can be used by the cell.
– Found in plants and animals 2. Chloroplast capture energy from the sun and
convert into chemical ENERGY in the process of photosynthesis.
– Found mostly in plants and some photosynthetic bacteria.
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H. Cytoskeleton
Cell wall in plants: made of cellulose Microtubules and centrioles, give shape and
structure
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Cell –e-bration Brochure
Due oct 22
Concepts in Biochemistry - Interactive Animations