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State one part of the cell theory.

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Presentation on theme: "State one part of the cell theory."— Presentation transcript:

1 State one part of the cell theory.
How do viruses reproduce? What structure is common to all living things? Hint – think about ? #1 Name one structure that is common to prokaryotic and eukaryotic cells. Where is DNA located in a prokaryotic cell? Where is DNA located in a eukaryotic cell?

2 Prokaryote cells are smaller and simpler
Commonly known as bacteria microns in size Single-celled(unicellular) or Filamentous (strings of single cells)

3 Prokaryote cells are simply built (example: E. coli)
capsule: slimy outer coating cell wall: tougher middle layer cell membrane: delicate inner skin

4 Prokaryote cells are simply built (example: E. coli)
cytoplasm: inner liquid filling DNA in one big loop pilli: for sticking to things flagella: for swimming ribosomes: for building proteins

5 Prokaryote lifestyle unicellular: all alone colony: forms a film
filamentous: forms a chain of cells

6 Prokaryote Feeding Photosynthetic: energy from sunlight
Disease-causing: feed on living things Decomposers: feed on dead things

7 Eukaryotes are bigger and more complicated
Have organelles Have chromosomes can be multicellular include animal and plant cells

8 Organelles are membrane-bound cell parts
Mini “organs” that have unique structures and functions Located in cytoplasm

9 Cell Structures Cell membrane
delicate lipid and protein skin around cytoplasm found in all cells

10 Nucleus a membrane-bound sac evolved to store the cell’s chromosomes(DNA ) has pores: holes

11 Nucleolus inside nucleus location of ribosome factory

12 mitochondrion makes the cell’s energy the more energy the cell needs, the more mitochondria it has

13 Ribosomes build proteins from amino acids in cytoplasm may be free- floating, or may be attached to ER made of RNA

14 Endoplasmic reticulum
may be smooth: builds lipids and carbohydrates may be rough: stores proteins made by attached ribosomes

15 Golgi Complex takes in sacs of raw material from ER sends out sacs containing finished cell products

16 Lysosomes sacs filled with digestive enzymes digest worn out cell parts digest food absorbed by cell

17 Centrioles pair of bundled tubes organize cell division

18 Cytoskeleton made of microtubules found throughout cytoplasm
gives shape to cell & moves organelles around inside.

19 Structures found in plant cells
Cell wall very strong made of cellulose protects cell from rupturing glued to other cells next door

20 Vacuole huge water- filled sac keeps cell pressurized stores starch

21 Chloroplasts filled with chlorophyll turn solar energy into food energy

22 How are plant and animal cells different?

23 Structure Animal cells Plant cells cell membrane Yes yes nucleus nucleolus ribosomes ER Golgi centrioles no cell wall mitochondria cholorplasts One big vacuole cytoskeleton

24 Eukaryote cells can be multicellular
The whole cell can be specialized for one job cells can work together as tissues Tissues can work together as organs

25 Advantages of each kind of cell architecture
Prokaryotes Eukaryotes simple and easy to grow can specialize fast reproduction multicellularity all the same can build large bodies

26 Examples of specialized euk. cells
liver cell: specialized to detoxify blood and store glucose as glycogen.

27 How do animal cells move?
Some can crawl with pseudopods Some can swim with a flagellum Some can swim very fast with cilia

28 Pseudopods means “fake feet” extensions of cell membrane
example: ameoba

29 Flagellum/flagella large whiplike tail
pushes or pulls cell through water can be single, or a pair

30 Cilia fine, hairlike extensions attached to cell membrane
beat in unison


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