1st 9wks Exam Review

What is the primary difference between viruses and bacteria?

• Viruses are organisms and bacteria are chemicals.

• Viruses can survive on living or nonliving surfaces and bacteria need a living host.

• Viruses are alive and bacteria are nonliving.

• Viruses need a living host and bacteria can survive on living or nonliving surfaces.

Which of the following best describes the relationship between cells and living things in general?

• The larger the living thing, the larger its cells.

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

• The number of cells of which all living things are made.

• There is one kind of cell of which all living things are made.

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Why are cells considered to be the building block of all organisms?

• Cells are the smallest units of life.

• Living and nonliving things are made up of cells.

• All organisms have one cell.

• Cells are the largest units of life.

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A scientist places a flower petal under a microscope. What would the scientist need to see to identify if the petal was living?

• The color of the flower petal.

• The presence of cells.

• The type of flower the petal came from.

• The presence of texture on the petal.

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Use the diagram to answer the following question. What are the functions of cellular components A and B?

• A- store water for the cell. B- give energy to the cell.

• A- store DNA for the cell. B- produce proteins for the cell.

• A- control what enters and exits the cell. B- give green pigment to the cell.

• A- uses sunlight to make food for the cell. B- supports and protects the cell.

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How are chloroplasts in plant cells and mitochondrion in animal cells similar?

• Both organelles are energy processing centers for the cell.

• Both organelles have chlorophyll.

• In both organelles, glucose is a product of the chemical reactions that occur.

• Both organelles require oxygen for energy-producing reactions.

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How do multicellular and unicellular organisms differ?

• Multicellular organisms are only animals and all other organisms are unicellular.

• Multicellular organisms are made up of more than one cell and unicellular organisms are made up of one cell.

• Multicellular organisms are all cells under the Bacteria domain and unicellular organisms are all the organisms under the Eukarya domain.

• Multicellular organisms are only plant cells and unicellular organisms are only bacteria cells.

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Use the diagram to answer the following question. How does this organelle affect the function of the cell?

• Breaks down waste for storage in a vacuole.

• Directs the cell's activities.

• Allows food and water in the cell and waste out of the cell.

• Powers the cell.

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Which diagram represents a fungus cell and why?

• Diagram 1 is a fungus cell because it has an organized nucleus, therefore it is Eukaryotic.

• Diagram 2 is a fungus cell because it does not have an organized nucleus, therefore it is Prokaryotic.

• Diagram 1 is a fungus cell because it does not have an organized nucleus, therefore it is Prokaryotic.

• Diagram 2 is a fungus cell because it has an organized nucleus, therefore it is Eukaryotic.

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Complex organisms are multicellular. CHOOSE TWO answer choices that would NOT be examples of multicellular organisms.

• Bacteria

• Tree

• Mushroom

• Elephant

• Streptococcus

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