MMS Science Unit 3, Quiz 1

Which of the following lacks a nucleus?

• A plant cell

• A virus

• An amoeba

• An animal cell

Eukaryotic cells are different from prokaryotic cells becauses eukaryotic cells

• Are much smaller

• Have nuclei

• Have a higher rate of reproduction

• Have permeable membranes

Use the pictures below to answer the following question.

Which of the following is an example of a single-celled organism?

• Hydra

• Lichen

• Moss

• Paramecium

What are the basic structural units of living organisms?

• Cells

• Nuclei

• Organs

• Tissues

A student is looking at a cell through a microscope. The presence of which of the following would indicate that the cell is eukaryotic?

• DNA

• Cytoplasm

• Plasma membrane

• Nucleus

Scientists believe that the first organisms that appeared on Earth were prokaryotic. Which of the following best represents what the cell structure of these organisms have looked like?

• 
• 
• 
• 

The illustration below represents two protists.

What do thse two organisms have in common?

• They are photosynthetic

• They are unicellular

• they cause diseases

• They live underground

A single-celled organism that a student observed under a microscope is shown below.

Which of the following statements best describes this organism?

• the organism is eukaryotic because it has membrane-bound organelles.

• The organism is eukaryotic because it has a plasma membrane.

• The organism is prokaryotic because it can reproduce asexually.

• the organism is prokaryotic because it can synthesize its own food.

Refer to the diagram below of the single-celled, eukaryotic organisms to answer the following question(s).

Euglena uses which of these to move?

• A flegellum

• A vacuole

• Cilia

• Pseudopodia

A student observed a unicellular organism under a microscope (see image). After a while, the organism begins to split into two cells, as shown.

Which of these structures does the organism shown use to move itself?

• Cilia

• flagella

• Nuclei

• Ribosomes