The Cell Theory

According to the cell theory, what is the basic unit of structure of all living things?

• The cell

• The atom

• The molecule

• The organ

The smallest living things are one-celled or ________.

• unicellular

• multicellular

• bacterial

• molecular

Large organisms contain millions of cells. They are many-celled or ________.

• multicellular

• unicellular

• photosynthetic

• prokaryotic

According to the cell theory, what is the basic unit of function of all living things?

• The cell

• The atom

• The organ

• The molecule

Which of the following statements is NOT part of the cell theory?

• The cell is the basic unit of structure of all living things.

• The cell is the basic unit of function of all living things.

• Cells arise from nonliving matter.

• Cells arise from other living cells.

Which of the following do viruses contain?

• Cell walls

• Genetic material

• Chloroplasts

• Nuclei

Fill in the blank: Viruses reproduce inside another cell, called the _______ cell.

• host

• animal

• plant

• bacterial

What are the small structures located inside the cell called?

• Organelles

• Chromosomes

• Enzymes

• Nuclei

What is the main function of organelles in a cell?

• They perform certain functions that keep the cell (and the organism) alive.

• They provide energy for the entire body directly.

• They control the movement of the whole organism.

• They produce food for the cell from sunlight.

All organelles are found in both plant and animal cells.

• True

• False