CELLS G7

He made one of the most significant discoveries using a microscope. He observed and named cells.

• Anton Van Leeuwenhoek

• Robert Hooke

He made improvements to the first microscopes by having one lens and able to magnify an image about 270 times its original size.

• Anton Van Leeuwenhoek

• Robert Hooke

This type of microscope uses light and lenses to enlarge an image of an object.

• compound microscope

• light microscope

This type of microscope uses more than one lens to magnify an object.

• compound microscope

• light microscope

This type of microscope uses a magnetic field to focus a beam of electrons through an object or onto an object's surface. It can magnify an image up to 100,000 times greater than a light microscope.

• compound microscope

• electron microscope

TRUE OR FALSE:

This characteristic of life refers to the ability of living things that can maintain stable internal conditions.

• organism

• response to stimuli

• homeostasis

What characteristic of life is shown below?

cells -> tissue -> organs -> body systems

• use of energy

• growth and development

• organization

• response to stimuli

This cell has no membrane bound nucleus. They have fewer cell structures. Some can live in groups and some can live in extreme environment.

• eukaryotes

• prokaryotes

This cell has nucleus surrounded by a membrane and other organelles. Examples of this type are algae and fungus.

• eukaryotes

• prokaryotes

Multicellular organisms are made of prokaryotic cells. Each type of cell performs a specific job.

• TRUE

• FALSE