Characteristics of Living Things and Cell Theory

Plant and animal cells are examples of

• prokaryotic cells

• eukaryotic cells

True or False: These are the characteristics of living things 1. Living things are made of smaller building blocks called cells. 2. Living things convert energy. 3. Living things are able to reproduce. 4. Living things grow and develop. 5. Living things respond to their surroundings. 6. Living things maintain homeostasis. 7. Living things adapt over time.

• True

• False

Tags

NGSS.MS-LS1-1

NGSS.MS-LS4-4

The cell is considered the basic unit of life. The Cell Theory was developed over time using contributions of several scientists working in different fields. Which of the following is NOT part of the Cell Theory?

• All cells contain a nucleus.

• The cell is the basic unit of life.

• All organisms are composed of cells.

• All cells come from preexisting cells.

The cell theory took hundreds of years to develop. The scientists over the years added their discoveries to the theory when they were able to scientifically prove their ideas. What aided in the development of the discoveries over the years?

• The organisms were able to grow larger after several decades, which allowed the scientists to see them clearer.

• The continued development of the microscope helped the scientists to see smaller organisms and their cellular structures.

• The scientists were able to think for themselves as time went on.

• The development of eyeglasses that were used helped scientists to look deeper into cell structures.

Which technology was essential for the development of the cell theory?

• Microwave

• Telescope

• Antiseptics

• Microscope

While looking at a piece of cork, Robert Hooke saw different boxes that looked like compartments. He decided to call these compartments ______________.

• Cells

• Boxes

• Organisms

• Components

Tags

NGSS.MS-LS1-1

Which scientist proposed that all plant tissues are composed of cells?

• Anton van Leeuwenhoek

• Theodor Schwann

• Matthias Schleiden

• Robert Hooke

Which scientist added the third part of the cell theory which states, "All cells come from preexisting cells."

• Rudolf Virchow

• Robert Hooke

• Matthias Schleiden

• Theodor Schwann

Tags

NGSS.HS-LS1-4

All living things are composed of cells.

• True

• False

Tags

NGSS.MS-LS1-1

True or False? The basic unit of life is called a cell.

• True

• False

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2