The Cell HW #1 (10/22/24)

What has the improvement of the microscope and microscopic techniques in the last four centuries allowed scientists to do?

• develop the theory of relativity

• observe stars better

• develop the cell theory

• invent the telescope

Who were the three German scientists who developed the Cell Theory in the 1800s?

• Einstein, Planck, & Heisenberg

• Schleiden, Schwann, & Virchow

• Curie, Rutherford, & Bohr

• Newton, Galileo, & Kepler

Who concluded in 1838 that all plants were made of cells?

• Robert Hooke

• Matthias Schleiden

• Theodor Schwann

• Rudolf Virchow

Who concluded in 1839 that all animals were made of cells?

• Robert Hooke

• Matthias Schleiden

• Theodore Schwann

• Rudolf Virchow

Who was the German medical doctor who observed cells dividing under the microscope in 1855?

• Louis Pasteur

• Rudolf Virchow

• Robert Hooke

• Anton van Leeuwenhoek

What did Rudolf Virchow reason about the origin of cells?

• Cells are formed spontaneously

• Cells come from non-living matter

• All cells come from other pre-existing cells

• Cells are created by chemical reactions

According to the cell theory, what are all living things made of?

• Atoms

• Molecules

• Cells

• Tissues

Tags

NGSS.MS-LS1-1

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

• Organ

• Tissue

• Cell

• Organ system

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

NGSS.MS-LS1-3

How do new cells arise according to the cell theory?

• spontaneous generation

• from existing cells

• from non-living matter

• by chemical reactions

Tags

NGSS.HS-LS1-4

Who provided evidence for the endosymbiotic theory in 1970?

• Charles Darwin

• Gregor Mendel

• Lynn Margulis

• James Watson