Biology - 7.1 - Life is Cellular (1)

The invention of the ______________________ made the discovery of cells possible.

• telescope

• horoscope

• microscope

• gyroscope

Robert Hooke used the name ____________ to refer to the tiny chambers he saw when he observed magnified cork.

• corpuscle

• cell

• cubicle

• unit

German botanist Matthias Schleiden concluded that __________ are made of cells.

• animals

• fungi

• bacteria

• plants

• all living things

German biologist Theodor Schwann concluded that __________ are made of cells.

• animals

• fungi

• bacteria

• plants

• all living things

German biologist Rudolph Virchow concluded that new cells are produced from ____________ .

• other animal cells

• other fungi cells

• other pre-existing cells

• other plant cells

• spontaneous generation

The _______________________ combines the conclusions made by Schleiden, Schwann, and Virchow.

• germ theory

• miasma theory

• evolution theory

• cell theory

The size of the image formed by a light microscope is unlimited because light that passes through matter is diffracted.

• True

• False

Fluorescent dyes help scientists see the movement of compounds and structures in livings cells.

• True

• False

Transmission electron microscopes form a 3-D image of the surface of a specimen.

• True

• False

To study cells with a light microscope, different types of stains are usually available. Why is it generally more useful to stain eukaryotic cells than prokaryotic cells?

• Prokaryotic cells are simpler so the stain more easily diffuses throughout the cell.

• Prokaryotic cells are more complex, so there are more compounds and surfaces for the different stains to attach to and, thereby, provide visual detail about.

• Eukaryotic cells are simpler so the stain more easily diffuses throughout the cell.

• Eukaryotic cells are more complex, so there are more compounds and surfaces for the different stains to attach to and, thereby, provide visual detail about.