Microscope

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Planning

- Repeat Organs and BS 4 Cells

- Introduction The microscope

TO WHICH ORGAN SYSTEM DOES THE BRAIN BELONG?

1. DIGESTIVE
2. RESPIRATORY
3. NERVOUS
4. SKELETAL

TO WHICH ORGAN SYSTEM DO THE LUNGS BELONG?

1. DIGESTIVE
2. RESPIRATORY
3. NERVOUS
4. SKELETAL

TO WHICH ORGAN SYSTEM DO THE RIBS BELONG?

1. DIGESTIVE
2. RESPIRATORY
3. NERVOUS
4. SKELETAL

TO WHICH ORGAN SYSTEM DO THE BLOOD VESSELS BELONG?

1. MUSCULAR
2. REPIRATORY
3. CIRCULATORY
4. SKELETAL

TO WHICH ORGAN SYSTEM DOES THE SKULL BELONG?

1. DIGESTIVE
2. RESPIRATORY
3. NERVOUS
4. SKELETAL

TO WHICH ORGAN SYSTEM DO THE BICEPS BELONG?

1. MUSCULAR
2. RESPIRATORY
3. CIRCULATORY
4. SKELETAL

TO WHICH ORGAN SYSTEM DOES THE HEART BELONG?

1. MUSCULAR
2. RESPIRATORY
3. CIRCULATORY
4. SKELETAL

TO WHICH ORGAN SYSTEM
DOES THE STOMACH BELONG?

1. DIGESTIVE
2. RESPIRATORY
3. NERVOUS
4. SKELETAL

Cells & Organelles:

• Animal cells and plant cells

ANIMAL CELLS: NUCLEUS, CYTOPLASM, CELL MEMBRANE

PLANT CELLS: NUCLEUS, CYTOPLASM, CELL MEMBRANE, CELL WALL, CHLOROPLASTS & VACUOLE

Cells & Organelles:

• NUCLEUS: The brain of the cell, contains DNA.
• CYTOPLASM: The jelly filling of cell, contains water and nutrients.
• CELL MEMBRANE: The soft flexible wall around a cell, controls what goes in and out.
• CELL WALL: A hard outer wall made of cellulose, it for protection and support.
• CHLOROPLASTS:Little green balls in cells that can do photosynthesis.
• VACUOLE: An extra balloon in a cell that can contain nutrients or colours.

Why do we need a microscope?

Why do we need a microscope?

five minutes to memorize the parts of the microscope

Which part do you look through?

1. Ocular lens
2. Base
3. Body tube
4. Light source

What is the magnification when the ocular lens magnifieks 10x and the objective 40x?

1. 50x
2. 400x
3. 40x
4. 500x

Which knob do you first turn to focus?

1. The fine adjustment knob
2. The light source
3. The diaphragm
4. The coarse adjustment knob

the object we put under a microscope

- has to be small

- has to be very thin

- has to be put on a slide

slide

- slide = a small piece of glass

- put the specimen on the glass

-add a drop of water or colour

- put a cover slip on top

microscope

1. put slide under microscope
2. turn the smallest objective (4x)
3. put on the light
4. use big knob to focus
5. turn larger objective (10x)
6. use small knob to focus
7. turn objective to 40x
8. use small knob to focus
9. turn largest objective (40x)
   
10. use ONLY small knob to focus!!!!

Do now/homework