Biology Intro to Cells

Which of the following is the smallest unit of life that can carry out all life functions?

• the mitochondria
• the vacuoles
• the nucleus
• the cell

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Which structures are found in every living cell?

• cell membrane and cytoplasm
• chloroplasts and mitochondria
• a cell wall and nucleus
• chloroplasts and cell wall

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What is the function of the cell nucleus found in both plant and animal cells?

• to produce energy
• to control cell activity
• to remove waste products
• to allow molecules to enter the cell

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Cell organelles that are responsible for digesting food, worn out organelles and other cellular wastes are called ___________________.

• Mitochondria
• Vacuoles
• Lysosomes
• Chlororplasts

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What is one basic function of the vacuoles?

• circulating oxygen
• producing food
• controlling cell processes
• storing water

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All cells need energy to function.  Which cell organelle is responsible for producing energy in the cell?

• chloroplasts
• mitochondria
• nucleus
• vacuoles

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What is the function of a cell wall?

• to protect and support the cell
• to perform different functions in each cell
• to prevent water from passing through it
• to prevent oxygen from entering the cell

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In what part of the plant cell does the process of photosynthesis take place?

• nucleus
• mitochondria
• chloroplasts
• vacuoles

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Cells with a nucleus and membrane-bound organelles are called ____________________.

• prokaryotes
• eukaryotes
• bacteria
• protists

Which of the following is not part of the cell theory?

• cells must contain DNA 
• all living things are made from cells
• cells can only come from other cells
• cells are the basic unit of life

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