Repeating

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

The nucleus is made of nuclear plasma and nuclear membrane

1. True
2. False

What kind of cell is this: an animal cell or a plant cell? And how do you see this?

A tissue is a group of cells with the same shape and the same function. Would you say that blood is a tissue? Why (not)?

Axel is asked to make true-to-life drawing in biology. Is this drawing okay, according to the rules for drawing in biology class?

What is wrong with the drawing on the left?

Give three rules for drawing a schematic drawing in biology.

To which organ system does this organ belong?

1. Skeletal system
2. Nervous system
3. Digestive system
4. Muscular system

To which organ system does this organ belong?

What is the name of this part of the microscope?

1. Eye piece
2. Objective lens
3. Specimen
4. Diaphragm

What is the total magnification of the specimen if you use this lens?

1. 10x
2. 100x
3. 0.25x
4. 25x

What is the correct order of the following steps?

Sharp image? Now, use the revolving nosepiece to have the 10x objective lens at the front

Use the small knob to focus

Sharp image? Now, use the revolving nosepiece to have the 40x objective lens at the front

Use the large knob to  focus

Turn the revolving nosepiece so you have the 4x objective lens at the front

Use the small knob to focus

How to make a specimen?

Put the thing you want to study (=specimen) on the slide

Take a cover slip and carefully lay it on the slide

Too much water? Gently press the water from under the cover slip and clean it with paper

Put an extra drop of water on the specimen

Place te slide on the stage

Place a slide in front of you