Tài liệu hạn chế xem trước, để xem đầy đủ mời bạn chọn Tải xuống
1
/ 61 trang
THÔNG TIN TÀI LIỆU
Thông tin cơ bản
Định dạng
Số trang
61
Dung lượng
1,59 MB
Nội dung
ProkaryoticCellsVs.
Prokaryotic CellsVs.
Eukaryotic Cells
Eukaryotic Cells
Now that we have learned how living
Now that we have learned how living
things are organized what’s next?
things are organized what’s next?
We will learn more about the lowest level of
We will learn more about the lowest level of
organization: cells
organization: cells
What is the first thing that we need to know about
What is the first thing that we need to know about
cells?
cells?
All cells fall into one of the two major classifications
All cells fall into one of the two major classifications
of either prokaryotic or eukaryotic.
of either prokaryotic or eukaryotic.
[...]... called them cells He used this name because it reminded him of little rooms that monks lived in Matthias Schleiden First to see living plant cells and determined that plants are also made of these tiny structures called cells Theodor Schwann Viewed animal tissue and concluded that animals are also made of these tiny structures called cells Rudolf Virchow He was the scientist that said cells can... structures called cells Rudolf Virchow He was the scientist that said cells can only be produced by other living cells The Cell Theory 1 2 3 All Organisms are composed of one or more cells The cell is the basic unit of structure and organization of organisms All cells come from other living cells Cells Organelles are membrane-bound cell parts Mini “organs” that have unique structures and functions... unicellular Cells are smaller in size Cells are larger in size Has larger number of organisms Has smaller number of organisms How do the differences line up? Prokaryotes Appeared 4 billion years ago Eukaryotes Appeared 1 billion years ago How do the similarities line up? Lets See!!! Both types of cells have cell membranes (outer covering of the cell) Both types of cells have ribosomes...What do prokaryotic cell look like? Now let’s take a look at the characteristics of eukaryotes Eukaryotic cells appeared approximately one billion years ago Eukaryotes are generally more advanced than prokaryotes Nuclear membrane surrounds linear genetic... eukaryotes have several different parts Prokaryote’s organelles have coverings known as membranes Eukaryotes have a complex internal structure Eukaryotes are larger than prokaryotes in size What do eukaryotic cells look Mitochondria like? Nucleus Cytoplasm Golgi Complex Endoplasmic Reticulum Cell Membrane How do the differences line up? Prokaryotes Organelles lack a membrane Ribosomes are the only... billion years ago How do the similarities line up? Lets See!!! Both types of cells have cell membranes (outer covering of the cell) Both types of cells have ribosomes Both types of cells have DNA Both types of cells have a liquid environment known as the cytoplasm Your turn: Make a Venn Diagram outlining the similarities and differences between prokaryotes and eukaryotes You may use your book... may use your book and/or consult your teammate 7 Themes of Biology Biology is the study of life Bio- life , logystudy of Theme 1 Cellular Structure and Function- all living things are made of cells Theme 2 Reproduction: When organism make their own kind Theme 3 Metabolism: Organisms obtain and use energy Theme 4 Homeostasis: Maintain Stable internal environment 7 Themes Of Biology Theme... membrane-bound cell parts Mini “organs” that have unique structures and functions Located in cytoplasm Cell Structures Cell membrane delicate lipid and protein skin around cytoplasm found in all cells Nucleus a membrane-bound sac evolved to store the cell’s chromosomes(DNA) has pores: holes Nucleolus inside nucleus location of ribosome factory made or RNA mitochondrion makes