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Intro to Cells
Ch.7-2 pg 174-181
Studio Daily Video Player
The Cell Theory
All living things have cells Cells are the basic unit of life. Cells arise (come) from other cells!
Prokaryotes vs Eukaryote
Simpler
Smaller More complex
No nucleus more specialized organelles a nucleus
Ex. Bacteria Ex. Animals, plants
mushroom
protist
Protist, a single celled organism. One cell big!!!
Cell Comparison
Prokaryote vs Eukaryote
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.
B. Ribosome's
Small particles of RNA and protein that assemble proteins.
“makes proteins”
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.
D. Golgi Apparatus
Modify (changes), sorts, and packages proteins from ER .
organizes and delivers! “pancake stack”
E. Lysosomes
Uses enzymes to break down molecules and dead bacteria…cleans up!
F. Vacuoles
Stores materials such as water, salts, proteins, and carbs.
Create pressure to maintain shape, like leaves.
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.
H. Cytoskeleton
Cell wall in plants: made of cellulose Microtubules and centrioles, give shape and
structure
Cell –e-bration Brochure
Due oct 22
Concepts in Biochemistry - Interactive Animations