Microscopy and Microscopes Quiz

Microscope Components and Functions

• The ocular/eyepiece of a compound microscope magnifies the image formed by the objective lenses.
• The primary function of the objective lenses in a compound microscope is to collect and focus light from the specimen, forming an image.
• The diaphragm in a compound microscope regulates the amount of light that enters the microscope.

Microscope Structure

• The objective and ocular lenses of a compound microscope are contained in the microscope tube.

Simple Microscope

• The objective lens of a simple microscope collects and focuses light from the specimen, forming an image.

Light Reflection

• The mirror in a compound microscope is used to reflect light.

Historical Discoveries

• In 1609, Robert Hooke discovered cells.
• The scientist who concluded that all animals are made up of cells is Matthias Jakob Schleiden and Theodor Schwann.

Biological Concepts

• A living organism, including mammals, is defined as an entity with life.
• The primary function of the nucleus in a cell is to store genetic information.

Scientists and Discoveries

• Antonie van Leeuwenhoek is known as the 'Father of Microbiology' and discovered protists and bacteria.

Cell Biology

• The endoplasmic reticulum is the organelle responsible for the production of lipids and storage of energy.
• DNA is the molecule that carries genetic information for the development and functioning of an organism.
• The primary function of the plasma membrane or cell membrane is to regulate the movement of molecules in and out of the cell.

Microorganisms

• 'Obligate intracellular parasites' is a characteristic of viruses.
• A microorganism is an organism that can only be seen through a microscope.
• Bacteria, protists, and viruses are examples of microorganisms.