8.1 Life is Cellular

8.1 Life is Cellular

Microscopes

• Early Microscope 1660's

• Robert Hooke

• Anton van Leeuwenhoek

Light Microscope

• Compound Light Scope

• Can Magnify 1000X

• Need to Stain the Cell

Electron Microscope

• Can view 1/1,000,000 of a meter

• Transmission Electron Microscope

• Scanning Electron Microscope

Cell Theory

• Matthias Schleiden

  1838 Plants are made of cells

• Theodor Schwann

  1839 Animals are made of cells

• Rudolf Virchow

  1855 Cells come from existing cells

Cell Theory

• All living things are made of cells

• Cells are the basic unit of structure and function in living things

• New cells come from existing cells

Multiple Choice

Who discovered that all cells come from other living cells and had research that lead to the last major principle of cell theory?

• Matthias Schleiden

• Theodore Schwann

• Robert Hooke

• Rudolf Virchow

Multiple Choice

What was Schleiden convinced of?

• All plants are made of cells

• All animals are made of cells

• All cells are prokaryotic

• None of the above

Multiple Choice

What was Schleiden convinced of?

• All plants are made of cells

• All animals are made of cells

• All cells are prokaryotic

• None of the above

Multiple Choice

The cell theory was not complete until Rudolph Virchow discovered that...

• Cells are alive.

• There are two types of cells (prokaryotic/eukaryotic)

• All cells come from preexisting cells.

• Cells are the basic building blocks of life.

Multiple Choice

Which is not true of the cell theory?

• All living organisms are composed of cells.

• All cells have a nucleus, which acts like a brain of the cell.

• All cells come from preexisting cells.

Multiple Choice

Who discovered and named cells while looking at cork?

• Captain Hook

• Robert Hooke

• Matthais Schleiden

• Rudolf Virchow

Multiple Choice

This early cell theory scientist looked in a microscope and discovered "animalcules" in the gunk from his teeth and pond water.

• Schleiden

• Leeowenhoek

• Hooke

• Virchow

• Schwann

Multiple Choice

Which statement was NOT included in cell theory?

• All living things are composed of cells.

• Living cells come only from other living cells.

• Each cell contains a cell membrane, cytoplasm, nucleus, mitochondria, and endoplasmic reticulum.

• Cells are the smallest structure of living things that can perform the functions necessary for life.

Multiple Choice

Which of the following statements supports the cell theory as it is stated today?

• Not all cells are alive.

• Cells must contain a nucleus.

• All abiotic are composed of more than one cell

• Cells come from preexisting cells through cell division.

Multiple Choice

Which of the following statements supports the cell theory as it is stated today?

• Not all cells are alive.

• Cells must contain a nucleus.

• All abiotic are composed of more than one cell

• Cells come from preexisting cells through cell division.

Prokaryotes 1/1,000,00 of a meter

• Smaller and simpler

• Few membrane-bound organelles

• Genetic material not in nucleus

• Can grow, reproduce and respond

Eukaryotes 10/1,000,000 meter

• Larger and more complex

• Membrane-bound organelles

• DNA enclosed by a nucleus

• Can grow, reproduce and respond

Multiple Choice

What are the two types of cells?

• Prokaryotic & Eukaryotic

• Bacteria & Eukaryotic

• Eukaryotic

• Animal & Plant

Multiple Choice

Prokaryotes are the _________ of all the cells.

• most complext

• raddest

• prettiest

• simplest

Multiple Choice

Bacteria are prokaryotes.

• True
• False

Multiple Choice

Prokaryotic cells do not have…….

• Golgi bodies

• cell membrane

• DNA or RNA

• ribosomes

Multiple Choice

Which does only eukaryotic cells contain?

• nucleus

• DNA

• cell membrane

• ribosomes

Multiple Choice

Which of the following is found inside a prokaryote?

• cytoplasm
• DNA
• ribosomes
• all of these

Multiple Choice

How are prokaryotes and eukaryotes different?

• prokaryotes are larger

• eukaryotes have a nucleus

• eukaryotes are simpler

• prokaryotes are more complex

Multiple Choice

ALL living cells have this in common

• Nucleus
• Cell Membrane
• Cell Wall
• Mitochondria

Multiple Choice

All of this type of cells are single celled.

• animal

• prokaryotic

• plant

• eukariotic