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Plant Science

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Plant Science Unit 2 Lesson 1: Plant Cell Structure and Microscope Lab The Amazing Plant cell!! Why are Plant Cells so Amazing? Cells can determine: How productive ... – PowerPoint PPT presentation

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Title: Plant Science


1
Plant Science
  • Unit 2
  • Lesson 1 Plant Cell Structure and Microscope Lab

2
The Amazing Plant cell!!
3
Why are Plant Cells so Amazing?
CONVERT FOOD INTO ENERGY
ADAPT TO OUTSIDE STIMULI
4
Cells can determine
  • How productive plants will be.
  • How food tastes!
  • Why plants get sick.

5
Amazing characteristics of cells!
  • They are the smallest unit of a living system.
  • They all hold the blueprints of how an animal is
    put together.
  • c. They are vital to all life functions.
  • d. They can reproduce!!
  • e. They can change the physical form of a plant.
    Good traits and bad.

6
There are basically two cell types
  • Eukaryotic cells
  • (membrane bound)
  • Prokaryotic cells
  • (before nucleus)

7
A Prokaryote Cell
  • Single-celled organisms
  • Lacks internal structures
  • Example Bacteria

8
A Eukaryote Cell
  • Has internal membrane- bound structures called
    organelles. The largest organelle is the Nucleus,
    which contains the cells DNA.
  • May be made of one or many cells.
  • Makes up most of all living cells.

Red blood cell
9
How big are animal cells?
1 centimeter 10 millimeters 1 millimeter
1,000 micrometers
10
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11
Cell sizes range from 200 micrometers
pinhead
12
200 micrometers
Human hair
Pin head
13
200 micrometers
Dust Mite
14
20 micrometers
15
20 micrometers
Pollen grain
Lymphocyte
Red Blood Cell
E-coli
Bakers yeast
16
200 nanometers
Ebola virus
17
To 20 nanometers
Rhinovirus
18
How did scientists discover cells?
  • Using Microscopes!!
  • Instrument developed by 16th century Anton van
    Leeuwenhoek.

19
CELL Theory states
  • All organisms are composed of one or more cells.
  • The cell is the basic unit of organization of all
    organisms.
  • All cells come from pre-existing cells.

20
Lets go and look at some cells!!
Step 1 Teacher demonstration of microscope
use. Step 2 Students begin Microscope Lab 8.1
due today!!
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