Next Week Chapter Test Flashcards
What is an instrument that makes small objects appear larger?
Micrscope
What is the action or process of magnifying something?
Magnification
T/F: Schwann worked alone to develop the cell theory.
False
T/F: Organisms who have cells lack a nucleus call prokaryotes.
True
T/F: The cell theory is only true for living things that are small.
False
T/F: Magnification is the ability to make things look larger than they are.
True
T/F: Chromatin floats in the nucleus which contains genetic material or instructions for the cell’s functions.
True
A light microscope can magnify objects up to ___ times their original size.
1000
_____ is an instrument that makes small objects appear larger.
Microscope
_____ is a rigid layer of nonliving material that surrounds the plant cell.
Cell Wall
______ is the microscope that has better resolution.
Electron Microscope
The lenses in a light microscope magnifies an object by ____ the light that passes through it.
bending
Name the 3 parts of the cell theory in order.
- All living things are composed of cells. 2. Cells are the basic units of structure and function in living things. 3. All cells are produced from other cells.
How do the cells of bacteria differ from those of other organisms?
Cells of bacteria lack a nucleus.
Compare and contrast magnification and resolution.
Both magnification and resolution help you see things better. Magnification makes it bigger, whereas resolution makes it clearer.
Describe the difference between a light microscope and an electron microscope.
Electron microscopes use a beam of light. Light microscopes use a mirror that focuses light through the specimen.
Who was the first scientist to observe bacteria from a pond.
Leeuwenhoek
Who was the first person to observe cells?
Hooke
Who concluded that all plants are made up of cells?
Schleiden
Schwann worked on what type of cells?
animal
Who proposed that all cells come from other cells?
Virchow
Which microscope has more than one lens?
Compound Microscope
What is widely explained of the relationship between cells and living things?
Cell Theory
What is the minimum distance at which two distinct points of a specimen can still be seen?
Resolution
Which lens has a curved thicker middle than its edges?
Convex Lens
