Cell Organization
Cell Theory
Scientists and Discoveries
Characteristics of Life
Allen Cell Explorer
100

What is the most basic unit of structure and function of an organism?

Cell

100

Which invention helped the study of cells?

the microscope

100

Name the scientist who named the cell, "cell"

Robert Hooke

100

How many characteristics of life have we studied?

6

100

Name an organelle that produces energy

mitochondria, peroxisomes

200

Term to describe the next level of organization after cells

Tissue

200

At least how many cells make up a living organism?

one

200

Which scientist was the first observe living cells under the microscope?

Antonie van Leewenhoek

200

Living or nonliving: plants

living

200

Name an organelle that helps maintain the shape of the cell

actin filaments, microtubules, membrane, tight junction, desmosomes

300

Two or more types of tissue is called a(n) ____.

Organ

300

True/False: Cells come from other living cells

True

300

True/False: Robert Hooke invented the microscope

False

300

Name one characteristic of life.

1. made up of cells

2. require energy

3. grow and develop

4. reproduce

5. respond to the environment

6. maintain homeostasis

300

Name a function of the cell that relates to the characteristic of life "respond to the environment"

sense the environment, move, die

400

Different organs work together in a(n) ____ _____.

Organ system

400

A principle of the cell theory that supports a characteristic of life

All living organisms are composed of one or more cells

400

Which cell theory principle was developed by the work of Rudolf Virchow?

Cells come from other living cells

400

Metamorphosis is an evidence of which characteristic of life?

Growth and development

400

Name a function of the cell that maintains homeostasis.

remove waste, move internal material, or maintain shape

500

A(n) ____ consists of multiple organ systems that work together.

organism

500

Name one of the major principles of the cell theory.

  • All living organisms are composed of one or more cells

  • Cells are the basic units of structure and function in an organism

  • Cells come from other living cells

500

Name one of the scientists that supported the cell theory principle that states all living organisms are composed of one or more cells.

Matthias Schleiden/Theodor Schwann

500

Which characteristic of life relates to the cell theory?

made up of one or more cell

500

Which characteristic of life matches with the cellular function "Divide"?

reproduction/reproduce