Microscopy and Cell Pre-lab

During ________, the shortest phase of mitosis, chromosomes are pulled toward the poles of the cell.

Anaphase

The microscope field is the ________.

Area you see through the lenses of the microscope.

When a cell is NOT dividing, the DNA is loosely spread throughout the nucleus in a threadlike form called __________.

Chromatin

The ________ is a substage lens that concentrates light on the specimen.

Condenser

You should always begin observation of specimens with the oil immersion lens.

False

During __________ the cell grows and performs its usual activities.

Interphase

When observing a slide under a microscope, begin focusing with the ________-power objective lens in place.

Lowest

The division of human cells consists of a series of events, collectively called ________, or nuclear division, and ________, or division of the cytoplasm.

Mitosis; Cytokinesis

The total magnification of an object can be found by ________.

Multiplying the power of the objective lens by the power of the ocular lens.

During this phase of mitosis, the mitotic spindle forms and the nuclear envelope fragments.

Prophase

The ability to discriminate two close objects as separate is called ________.

Resolution (resolving power)

To transport a microscope, hold it ________.

upright, with one hand on its arm and the other hand supporting its base.