Life Is Cellular

What’s the smallest part of any living thing that still counts as being “alive?”

• atom
• protein
• cell 
• tissue

Tags

NGSS.HS-LS1-4

The cell theory states: 

• All living things are made up of cells
• Cells are the basic units of structure and function in living things
• All cells are produced from existing cells
• All answers are correct

It was not until the mid-____ that scientists began to use microscopes to observe living things.

• 1600's
• 1500's
• 1700's
• 1900's

In 1665, Englishman ______ used an early compound microscope to look at a nonliving thin slice of _______.

• Robert Hooke/cork
• Anton van Leeuwenhoek/cork
• Einstein/cork
• Robert Hooke/pond

Anton van Leeuwenhoek is known for examining living things under a microscope including human mouth tissue and bacteria. 

• True
• False

Soon after Leeuwenhoek, observations made by other scientists made it clear that ______were the basic units of life.

• molecules
• organs
• atoms
• cells

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

In 1838, German botanist Matthias Schleiden concluded that all ______ are made of cells.

• animals
• plants
• protists
• fungi

Tags

NGSS.MS-LS1-1

German biologist Theodor Schwann stated that all ______ were made of cells.

• plants
• animals
• bacteria
• fungi

German physician Rudolf Virchow concluded that new cells could be produced only from: 

• the division of existing cells
• thin air
• deceased cells
• molecules

Tags

NGSS.HS-LS1-4

Prokaryotic cells do not separate their genetic material within a nucleus.

• True
• False