U1M1L1 Exploring Life

The smallest unit of life is the _____.

• cell

• homeostasis

• organism

• protein

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Which of the following is NOT a necessary characteristic of a living thing?

• It is made up of cells

• It eats food to get energy

• It grows and develops

• It responds to stimuli

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Which of the following is a multicellular organism?

• bacterium

• amoeba

• mouse

• paramecium

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Which statement is true?

• Cells come in different shapes, but are all about the same size—very, very small

• Cells come in different shapes and sizes.

• Cells all have the same shape, but come in different sizes.

• Cells are all the same shape and size—small and rounded.

Animals are multicellular

• true

• false

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___________ cells have genetic material that is not surrounded by a lining.

• Eukaryotic

• Prokaryotic

The cell theory is the result of the hypothesis and observation of one person.

• true

• false

The cell theory states that all cells come from cells that already exist.

• true

• false

Which correctly describes a difference between prokaryotic and eukaryotic cells?

• Only prokaryotic cells have vacuoles

• Eukaryotic cells are smaller than prokaryotic cells

• Prokaryotic cells have many organelles, each with their own specialized functions.

• Only eukaryotic cells have their genetic material surrounded by a lining.

Jade places a fresh, thin slice of onion on a microscope slide to look for evidence that an onion is made of cells.

Describe two observations Jade could make to provide evidence that an onion is made of cells.

Evaluate responses using AI:

OFF

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