Introduction to cells

What type of microscope would be most effective for studying a living cell? Scanning Electron Microscope Transmission Electron Microscope Magnifying Glass Light Microscope

Light Microscope

Which of the following is true regarding the cell theory? All living organisms are made of one or more cells. Cells are non-living entities. Cells are the basic units of life. Cells can be formed from living or non-living things.

All living organisms are made of one or more cells. Cells are the basic units of life.

Which of the following is true regarding the cell theory? Choose all answers that apply: A Cells are the basic units of life. B All living organisms are made of one or more cells. C Cells can be formed from living or non-living things. D Cells are non-living entities.

All living organisms are made of one or more cells. Cells are the basic units of life.

The first person to observe living, moving cells was?

Anton van Leeuwenhoek

Why do small cells function more efficiently than large cells do?

As a cell increases in size, its volume increases faster than its surface area. The surface- area-to-volume ratio decreases until the cell's contents can no longer absorb the materials they need and expel wastes fast enough to maintain homeostasis

A typical plant cell viewed under a compound light microscope reveals the many different parts that have different functions. The part of the cell which surrounds and protects the contents of the cell is called the

CELL MEMBRANE

The cell theory is based on three major premises: Cells are the basic units of life. Each cell must come from a preexisting cell. All living things are made up of cells.

Each cell must come from a preexisting cell.

Which of the following is a potential exception to cell theory?

Mitochondria

The first person to observe cells as microscopic structures was the British scientist ______ _____.

Robert Hooke

Who wrote the book Micrographia?

Robert Hooke

Which scientists played a role in developing the cell theory? Charles Darwin Theodor Schwann Robert Remak Robert Hooke Matthias Schleiden

Theodor Schwann Robert Remak Robert Hooke Matthias Schleiden

What type of microscopy tool should the scientists use in order to observe these structures? Confocal Microscope Transmission Electron Microscope Magnifying Glass Light Microscope

Transmission Electron Microscope

List the following microscopic items from smallest (top) to largest (bottom). Water molecule Grain of salt Skin cell Influenza virus Hemoglobin

Water Molecule Hemoglobin Influenza Virus Skin Cell Grain of Salt

Are magnifying glass considered microscopes?

Yes

What was his occupation at the time?

a Dutch shopkeeper and crafter of lenses

Which of these organelles can be found in the cytoplasm and attached on the surface of the endoplasmic reticulum? centrioles ribosomes centrosomes mitochondria

ribosomes

Which of these moves across cell membranes by osmosis?

water