Science Review with Mrs. Amos

If a cell were compared to a school, which part of the school would represent the cell's nucleus?

• the classroom walls because they give the structure to the school

• the cafeteria cooks because they make food for the entire school

• the principal because he or she controls all the activity in the school

• the fence because it controls what enters and exits the school

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Refer to the models of the plant cell and animal cell. Which structure is found only in the plant cell model?

• Nucleus

• Mitochondrion

• Chloroplast

• Cell Membrane

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Refer to the models of the plant cell and animal cell. Fill in the blank: The ________ is responsible for producing energy in both plant and animal cells.

• Mitochondrion

• Nucleus

• Cell wall

• Ribosome

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Which statement correctly describes how a cell obtains energy?

• An animal cell uses mitochondria to create energy in the process of photosynthesis. Animal cells use cellular respiration, not photosynthesis, to create energy.

• A plant cell uses chloroplasts to make its own food in the process of photosynthesis. Photosynthesis is the process by which plant cells convert light energy from the Sun into chemical energy.

• An animal cell uses chloroplasts to create energy in the process of cellular respiration. Animal cells do not have chloroplasts.

• A plant cell uses mitochondria to make its own food in the process of cellular respiration. Plant cells create chemical energy, food, within chloroplasts during photosynthesis, not cellular respiration.

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Which of the following best describes why a cell would not be able to reproduce if its nucleus were damaged?

• The nucleus is responsible for creating the energy used to perform cell division.

• The nucleus is responsible for housing the genetic information needed for cell division.

• The nucleus is responsible for letting the materials in that are needed for cell division.

• The nucleus is responsible for creating the sugars needed to perform cell division.

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Which organelle is responsible for taking in nutrients, breaking them down, and creating energy rich molecules?

• the mitochondrion

• the Golgi apparatus

• the nucleus

• the vacuole

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Which best describes why plant cells have chloroplasts and animal cells do not?

• A. Plant cells need chloroplasts to make DNA because most plant cells do not contain a nucleus.

• B. Plant cells need chloroplasts to make food because most plants cannot move to get food on their own.

• C. Plant cells need chloroplasts to make protein because most plants cannot move to get protein on their own.

• D. Plants cells need chloroplasts to move materials in and out of the cell because most plant cells do not contain a cell membrane.

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What is directly related to the function of a cell?

• color

• life span

• movement

• structure

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Identify the Response in the following situation: The bell rings and the students in the classroom stopped working and began to pack up.

• The bell rings.

• The students in the classroom.

• The classroom.

• The students stopped working and began to pack up.

Cells are specialized to do certain jobs. For instance, muscle cells are in constant motion and require a lot of energy to work. Muscle cells contain more of which organelle?

• cell wall because it produces energy for the cell

• chloroplasts because they produce energy for the cell

• cell membrane because it produces energy for the cell

• mitochondria because they produce energy for the cell

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