unit 3 pp #7

36
The Cell

Upload: tarinakline

Post on 06-May-2015

3.643 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Unit 3 pp #7

The Cell

Page 2: Unit 3 pp #7

Outline Cell Structure

Prokaryote vs. Eukaryote Plant vs. Animal Organelles, structure and function

Movement through the Cell Cell membrane Passive transport

Osmosis Diffusion

Active transport Endocytosis Exocytosis

Types of Cells

Page 3: Unit 3 pp #7

The Cell Theory1) All living things are composed of

cells.

2) Cells are the basic unit of structure and function in living things.

3) New cells are produced from existing cells.

Page 4: Unit 3 pp #7

Cells Unicellular – organism made up of only 1 cell

Page 5: Unit 3 pp #7

Cells Multicellular – organism made up of more than 1 cell

Page 6: Unit 3 pp #7

Cells Unicellular or multicellular?

Page 7: Unit 3 pp #7

Cells Unicellular or multicellular?

Page 8: Unit 3 pp #7

Cells Unicellular or multicellular?

Page 9: Unit 3 pp #7

Cells All cells

contain: Cytoplasm Cell

membrane Ribosomes Genetic

information (DNA)

Page 10: Unit 3 pp #7

Cells Types:

Prokaryote Eukaryote

Animal cells Plant cells

Page 11: Unit 3 pp #7
Page 12: Unit 3 pp #7
Page 13: Unit 3 pp #7
Page 14: Unit 3 pp #7

Prokaryote Cells Cells missing a nucleus and organelles.

DNA is a single circle (plasmid).

All bacteria are prokaryotes.

All prokaryotes are unicellular.

Page 15: Unit 3 pp #7

Prokaryote

Page 16: Unit 3 pp #7

Eukaryote Cells have a

nucleus and organelles.

Eukaryotes may be unicellular or multicellular

Two types: Animal cells Plant cells

Page 17: Unit 3 pp #7

Eukaryote

Page 18: Unit 3 pp #7

Animal Cells Eukaryotic cell that does not contain a: cell wall large vacuole Chloroplasts

Does NOT photosynthesize.

Page 19: Unit 3 pp #7

Animal Cells

Page 20: Unit 3 pp #7

Plant Cells Eukaryotic cell that contains: large vacuole Cell wall chloroplasts

Photosynthesizes.

Page 21: Unit 3 pp #7

Plant Cells

Page 22: Unit 3 pp #7

Cell Parts Cytoplasm

Found in all cells.

Semi-liquid medium that makes up the most of the cell.

Contains enzymes & nutrients that help reactions occur.

Page 23: Unit 3 pp #7

Cell Parts Cell Membrane

Structure surrounding all cells.

Controls what molecules may enter and/or exit the cell.

Page 24: Unit 3 pp #7

Cell Parts Ribosomes

Found in all cells.

Produces proteins.

Page 25: Unit 3 pp #7

Cell Parts DNA

Found in all cells. Contains the genetic information required for life.

1 circular strand in prokaryotes. Many linear (double helix) strands in eukaryotes.

Page 26: Unit 3 pp #7

Cell Parts

Nucleus Found in all eukaryotes.

Membrane bound structure that contains DNA.

Page 27: Unit 3 pp #7
Page 28: Unit 3 pp #7

Cell Parts

Endoplasmic Reticulum (ER) Found in all eukaryotes.

Passageway in which proteins travel after being produced by ribosomes.

Produces new membranes.

Page 29: Unit 3 pp #7

Cell Parts Golgi Apparatus

Found in all eukaryotes.

Packaging center for proteins and other cell products leaving the cell.

Page 30: Unit 3 pp #7

Cell PartsLysosome

Found in animal cells.

Digests food molecules.

Destroys worn-out cell parts.

May destroy the cell.

‘Suicide sac.’

Page 31: Unit 3 pp #7

Cell Parts

Mitochondria Found in all eukaryotes.

Site of respiration.

Page 32: Unit 3 pp #7

Cell Parts Chloroplast

Found only in plant cells. Site of photosynthesis. Contains the pigment chlorophyll.

Appears green

Page 33: Unit 3 pp #7

Cell Parts Vacuole

Found in all eukaryotes. Very large in plant cells. Small organelles in animal cells.

Storage area for water and nutrients.

Page 34: Unit 3 pp #7

Cell Parts Cell Wall

Found only in plant cells. Adds structure and support to the cell.

Page 35: Unit 3 pp #7

Movement of the Cell Flagella

Whip-like tail used to move the cell.

Page 36: Unit 3 pp #7

Movement of the CellCilia

Small, hair-like projections surrounding the cell. Used to move the cell.