Download Notes: Life is Cellular Pages 169-172 A. The Cell theory i. The first

Notes: Life is Cellular
Pages 169-172
A. The Cell theory
i. The first person to study nature under a microscope...
ii. Robert Hooke used light microscopes to look at …
iii. Hooke discover small chambers he called …
iv. Cells are the …
The Cell Theory states these three things:
1.
2.
3.
B. Basic Cell Structures
i. Cell membrane=
ii. Cell Wall=
iii. Nucleus=
iv.Cytoplasm=
C.Prokaryotes and Eukaryotes
1. Prokaryotes:
i. These cells are usually _____________ and
_____________than Eukaryotes.
ii. These cells have ________________ and ________________
but no _____________
iii. All _________________ are Prokaryotes
Examples:
2. Eukaryotes:
i. These cells have ______________, _________________,
________________ and ________________.
ii. All _____________,_______________, _____________ and
many _________________ are eukaryotes.
Notes: Life is Cellular
A. The Cell theory
i. The first person to study nature under a microscope was
Anton van Leeuwenhoek.
ii. Robert Hooke used light microscopes to look at plant tissue
iii. Hooke discover small chambers he called CELLS.
iv. Cells are the basic units of all forms of life
The Cell Theory states these three things:
1. All living things are composed of cells.
2.Cells are the basic units of structure and function in living
things.
3. New cells are produced from existing cells.
B. Basic Cell Structures
i. Cell membrane= Thin flexible barrier around the cell.
ii. Cell Wall= Strong layer around the cell membrane.
iii. Nucleus= Large structure that contains the cell’s genetic
material and controls the cell’s activities.
iv.Cytoplasm= Material inside the cell membrane
C.Prokaryotes and Eukaryotes
1. Prokaryotes:
i. These cells are usually smaller and simpler than Eukaryotes.
ii. These cells have Cell membrane and Cytoplasm but no Nucleus
iii. All Bacteria are Prokaryotes
Examples: Escherichia coli and Staphylococcus aureus
2. Eukaryotes:
i. These cells have a nucleus, cell membrane, cytoplasm and
organelles.
ii. All Plants, Animals, Fungi and many Microorganisms are
eukaryotes.