BIOL109 - General Biology I (Chapter 04)

The ____ ____ states that all organisms are composed of cells, that cells are basic units of structure and function in organisms, and that cells come only from pre-existing cells because cells are self-reproducing

The ____________________ requires that cells be small.

As cells get larger in volume, the surface area relative to volume ____.

Cells needing greater surface area utilize ____________________.

____ ____ ____ use light rays focused by glass lenses.

____ ____ ____ use electrons passing through specimen and focused by electromagnetic lenses.

____ ____ ____ use electrons scanned across metal-coated specimen; secondary electrons given off by metal are collected by a detector.

__(1)__ is a function of wavelength; the shorter wavelengths of electrons allow __(2)__ ____ than the longer wavelengths of light rays.

____ is the minimum distance between two objects at which they can still be seen as separate objects.

____ is the difference in the shading of an object compared to its background.

____ uses fluorescent antibodies to reveil proteins in cells.

____ ____ uses laser beam to focus on a shallow plane within the cell; this forms a series of optical sections from which a computer creates a three dimensional image.

____ ____ _____ accentuates the light and dark regions and may use a computer to contrast regions with false colors.

Bright-field, phase contrast, differential interference, and dark-field are different types of what?

Three different types of cells exist in nature. What are they?