Review on Unit 1 Rehearse 2

Which model represents a cell that has NO Nucleus and NO Organelles?

• Model #1

• Model #2

• Both models

• There is not enough detail to determine which model represent best

Based on the observations from the scientist, what can be inferred about these cells?

• Cell A is a eukaryotic cell and cell B is a prokaryotic cell.

• Cell A is a prokaryotic cell and cell B is a eukaryotic cell.

• Both cell A and B are prokaryotic cells.

• Both cell A and B are eukaryotic cells.

Which cell structure would a scientist expect to find in cell A, but not find in cell B?

• Ribosomes

• Nucleus

• Cell wall

• Cytoplasm

Which three (3) structures would be found in both cell A and cell B?

• Plasma membrane

• Ribosomes

• Cytoplasm

• Mitochondria

• Nucleus

Complete the sentence below:

Based on the table, it can be inferred that Cell A is _______ than Cell B.

• more complex

• less complex

• equally complex

• simpler

What cell structures are responsible for providing the energy needed for cell activities?

• mitochondria

• nuclei

• ribosomes

• vacuoles

The diagram shows an animal cell. If the structure labeled X were to stop functioning properly, how would that immediately impact the cell?

• The cell would not be able to produce ATP to meet its energy needs.

• The cell would not be able to produce the proteins necessary for life.

• The cell would not be able to get oxygen and nutrients from its environment.

• The cell would not be able to transport mRNA from the nucleus to the ribosome.

Why is homeostasis important?

• It allows organisms to maintain a constant internal environment.

• It breaks down fats when carbohydrates are not available.

• It uses the energy from sunlight to make sugar from carbon dioxide and water.

• It is the process by which a less specialized cell becomes a more specialized cell type.

A diagram of a cell is shown below. In which structure is protein synthesized?

• 1

• 2

• 3

• 4

A student examines an electron microscope of an unidentified cell and determines that it is a human cell. Which structures did the student identify in order to come to this conclusion?

• DNA

• ribosome

• mitochondria

• plasma membrane