Exploring Cell Theory and Organelles

The video covers cell theory, explaining that all living things are made of cells, cells are the basic unit of life, and all cells come from other cells. It distinguishes between unicellular and multicellular organisms, and between prokaryotic and eukaryotic cells, highlighting the presence of a nucleus in eukaryotes. The video also discusses common cell structures like DNA, ribosomes, and the cell membrane, and delves into membrane-bound organelles in eukaryotic cells, detailing their functions. Finally, it encourages practice in identifying cell parts and comparing cell types.

Which of the following is NOT one of the three main tenets of cell theory?

• All cells come from pre-existing cells.

• Cells can spontaneously generate.

• Cells are the basic unit of life.

• All living things are made of cells.

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NGSS.MS-LS1-1

What is the primary difference between prokaryotic and eukaryotic cells?

• Presence of a cell wall

• Size of the cell

• Presence of a nucleus

• Ability to perform photosynthesis

Which type of cell division is performed by prokaryotic cells?

• Mitosis

• Budding

• Meiosis

• Binary fission

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What is the function of ribosomes in a cell?

• To provide structural support

• To store genetic material

• To control what goes in and out of the cell

• To make proteins

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NGSS.MS-LS1-2

Which of the following is NOT a common feature of all cells?

• Cytoplasm

• Chloroplasts

• Cell membrane

• Genetic material

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NGSS.MS-LS1-2

What is the main function of the Golgi apparatus?

• To store water and nutrients

• To process and ship proteins

• To make proteins

• To generate energy

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NGSS.MS-LS1-2

Which organelle is known as the powerhouse of the cell?

• Golgi apparatus

• Ribosome

• Nucleus

• Mitochondria

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NGSS.MS-LS1-2

What is the primary function of chloroplasts in plant cells?

• To store genetic material

• To perform photosynthesis

• To break down waste

• To provide structural support

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Which structure is found only in plant cells and not in animal cells?

• Cell membrane

• Central vacuole

• Mitochondria

• Nucleus

What is the role of lysosomes in animal cells?

• To control cell division

• To make proteins

• To break down dead or old cell parts

• To store water and nutrients

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NGSS.MS-LS1-2