Unit 3

Which of the following statement is a part of the modern cell theory? Select all that apply.

• All cells come from pre-existing cells.

• Bacteria are prokaryotic cells.

• Eukaryotic cells are complex.

• An organism comes from spontaneous generation.

• All organisms are living things.

From cell theory, scientists know ___ is the basic unit of structure and function of organisms.

• an atom

• the cell

• any matter

• all other answers are correct

According to modern cell theory,

• atoms create all living and non-living matter.

• living things adapt to changes in their enviornment.

• the cell is the smallest component of all matter.

• cells are the basic unit of structure and organization of organisms.

Which of the following is not a component of the modern cell theory?

• All living things are made of one or more cells.

• The cell is the smallest living thing that can perform functions of life.

• Cells are too small to see without a microscope.  
• All cells must come from pre-existing cells.

Which of the following statements is not a component of the modern cell theory?

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

• All cells are produced from other cells.

• Only animals and plants are composed of cells.

• All living things are composed of at least 1 cell.

Select all that apply. Of the following, which are always unicellular organisms?

• animals

• plants

• bacteria

• fungi

Select all that apply. Which of the following are always multicellular organisms?

• animals

• plants

• bacteria

• fungi

Which of the following has a nucleus along with other organelles?

• prokaryotic cells

• bacteria cells

• eukaryotic cells

• fungal cells

Prokaryotic cells do not have ___.

• DNA or organelles

• a cell membrane

• any cytoplasm

• a nucleus

Bacteria is an example of a

• prokaryote because it lacks a nucleus.

• eukaryote because it lacks a nucleus.

• prokaryote because it has a nucleus.

• eukaryote because it has a nucleus.